DP-6X Chassis Training Package
Transcription
DP-6X Chassis Training Package
August 2006 (ver b) HITACHI PROJECTION TELEVISION 2005 MODEL RELEASE DIGITAL HD READY PTV Model Chassis 51F59 DP-65 57F59 DP-65 65F59 DP-65 51F59A/J DP-65G 57F59A/j DP-65G 65F59A/j DP-65G Remote P/N CLU-4361S HL02291 Service Web Site http://www.hitachiserviceusa.com CONTENTS... 2006 DP-6X Chassis Projection Television Information Materials Prepared by… Alvie Rodgers C.E.T. (Chamblee, GA.) THIS PAGE INTENTIONALLY LEFT BLANK August 2006 (ver b) DP-6X TABLE OF CONTENTS TOPICS Materials prepared by Alvie Rodgers C.E.T. PAGE SECTION (1) PRODUCT INFORMATION SECTION: • • • • • • 51F59 Product Specifications------------------------------------------------------------------------ 01-01 51F59 Product Dimensions -------------------------------------------------------------------------- 01-02 57F59 Product Specifications------------------------------------------------------------------------ 01-03 57F59 Product Dimensions -------------------------------------------------------------------------- 01-04 65F59 Product Specifications------------------------------------------------------------------------ 01-05 65F59 Product Dimensions -------------------------------------------------------------------------- 01-06 SECTION (2) POWER SUPPLY DIAGRAMS: • • • • • • • • • Stand By +5V Regulation Circuits Diagram -------------------------------------------------------- 02-01 Deflection +115V Regulation Circuits Diagram --------------------------------------------------- 02-02 Protect_OVP Shutdown Block Diagram ----------------------------------------------------------- 02-03 Protect_OVP (A) -5V Loss Detection Circuit Diagram ------------------------------------------ 02-04 Protect_OVP (B) Deflection Side Shutdown Circuit Diagram --------------------------------- 02-05 Protect_OVP (B to C) 115+ Too High or Over Current Circuit Diagram ------------------- 02-06 Protect_OVP (C) Shutdown Circuit Diagram ----------------------------------------------------- 02-07 LEDs Used for Troubleshooting Circuit Diagram -------------------------------------------------- 02-08 Power On/Off Used for Troubleshooting Circuit Diagram --------------------------------------- 02-09 SECTION (3) VIDEO CIRCUIT INFORMATION: • • Video Signal Selection Circuit Diagram ------------------------------------------------------------ 03-01 ABL Circuit Diagram ----------------------------------------------------------------------------------- 03-05 SECTION (4) AUDIO CIRCUIT INFORMATION: • Audio Signal Selection Circuit Diagram ------------------------------------------------------------ 04-01 SECTION (5) DEFLECTION CIRCUIT: • Sweep Loss Detection Circuit Diagram -------------------------------------------------------------- 05-01 SECTION (6) MUTE CIRCUIT INFORMATION: • • • • • Video Mute Circuit Diagram -------------------------------------------------------------------------- 06-01 High Voltage Circuit Diagram ------------------------------------------------------------------------ 06-02 Audio Output Mute Circuit Diagram --------------------------------------------------------------- 06-03 Rainforest IC Mute Circuit Diagram ---------------------------------------------------------------- 06-04 Monitor Out Mute for Circuit Diagram ------------------------------------------------------------ 06-05 Continued on Next Page Table of Contents Page 1 of 2 August 2006 (ver b) DP-6X TABLE OF CONTENTS TOPICS Materials prepared by Alvie Rodgers C.E.T. PAGE SECTION (7) DIGITAL CONVERGENCE CIRCUIT INFORMATION: • • Digital Convergence Interconnect Circuit Diagram----------------------------------------------- 07-01 CLU-4361S Remote Control -------------------------------------------------------------------------- 07-02 SECTION (8) CHASSIS PICTURES: • Signal PWB Picture ------------------------------------------------------------------------------------ 08-01 • Deflection PWB Picture ------------------------------------------------------------------------------- 08-02 • Digital PWB Picture ----------------------------------------------------------------------------------- 08-03 • DCU PWB Picture ------------------------------------------------------------------------------------- 08-03 • Control PWB Pictures -------------------------------------------------------------------------------- 08-03 • CRT PWB Pictures ------------------------------------------------------------------------------------ 08-04 SECTION (9) KEY PARTS • Key Component Parts List --------------------------------------------------------------------------- 09-01 SECTION (10) THINGS YOU SHOULD KNOW: This section changes often; • See the index for this section after the Section 10 Divider. ------------------------------------ 10-00 Table of Contents Page 2 of 2 PRODUCT INFORMATION DP-6X CHASSIS TRAINING PACKAGE SECTION 01 THIS PAGE INTENTIONALLY LEFT BLANK 51F59 DIGITAL 51" Digital Projection Television Key Features Convenience Features Dimensions • 1080i Display1 • DTV Tuner2 • High-Brightness CRTs • High-Brightness 4-Element Lens System • Magic Focus Auto Digital Convergence • 1080i Digital Video Processor -3 HD Aspect Modes -6 SD Aspect Modes -1080i/720p/480p/480i Input Compatible -Split Screen/Picture in Picture3 • High-Contrast Fine-Pitch Screen • 3-Color Temperatures • Edge Enhancement (SVM) • Black Enhancement • Digital 3D Y/C Comb Filter • Energy Star Compliant • Day and Night Memory by Input with Timer • Front Panel Menu Controls • Universal Remote Control • 3-Language On-Screen Display • Parental Locks (V-Chip) • Closed Caption Decoder • Sleep Timer • Discrete IR Codes • Height........................................ 50 3/8" • Width......................................... 48 3/4" • Depth.......................................21 15/16" • Weight....................................151 lbs. Audio Performance Features • MTS Stereo/SAP with dbx™ • Simulated Surround Sound • Full Range Speaker System Specifications • Color:.................................Gray/Black Inputs/Outputs • HDMI™ High-Definition Multimedia Interface:4 .....................1 • Wideband Component Video Inputs:.....................................2 • S-Video Inputs (Rear/Front):..........2/1 • AV Inputs (Rear/Front):..................4/1 • Antenna Inputs:.................................1 • Center Channel Input:............L/Mono • Fixed/Variable Audio Output:...........1 Warranty • 1 Year Parts and Labor Warranty In-Home Service • 2 Year Tube Warranty Due to variances in program productions and transmissions not all of the 1080 signal is displayed. 2 Not QAM Compatible, 480i Output 3 Requires the internal tuner plus an external tuner or other source device 4 HDMI input is compatible with DVI-HDTV (HDCP) signals when combined with an adapter cable. Adapter cable is not included. All specifications and dimensions are subject to change without notice. Refer to www. hitachi.us/tv for updated custom installation specifications. © 2006 Hitachi Ltd. All trademarks are the property of their respective owners. 1 Page 01-01 Hitachi America, Ltd., Home Electronics Division 900 Hitachi Way, San Diego, California 91914 - www.hitachi.us/tv or 1-800-HITACHI Product Dimensions K 20-1/8 557 L 21-15/16 51" HDTV 51-5/16” 48-13/16” J 1-5/8 510 21-11/16” I 21-11/16 40 Quick specs B Height A Width Depth H 44-1/2 550 I G 25 1129 51F59 I K F 37-5/8 635 A J E 23-15/16 955.5 G D 22-13/16 608 H C 48-13/16 579 B B 51-5/16 1239 D E F A 48-13/16 1303 L Inches 1239 C mm NOTE: All measurements are shown to the nearest 1/16th inch. This illustration is not necessarily drawn to scale and is intended for estimating space required for custom installations. Final measurements should be taken from the actual product before attempting installation. All dimensions are approximate measurements and subject to change without notice. Allow adequate space behind the unit for proper ventilation and cooling. Hitachi is not responsible for any typographical errors. Page 01-02 57F59 DIGITAL 57" Digital Projection Television Key Features Convenience Features Dimensions • 1080i Display1 • DTV Tuner2 • High-Brightness CRTs • High-Brightness 4-Element Lens System • Magic Focus Auto Digital Convergence • 1080i Digital Video Processor -3 HD Aspect Modes -6 SD Aspect Modes -1080i/720p/480p/480i Input Compatible -Split Screen/Picture in Picture3 • High-Contrast Fine-Pitch Screen • 3-Color Temperatures • Edge Enhancement (SVM) • Black Enhancement • Digital 3D Y/C Comb Filter • Energy Star Compliant • Day and Night Memory by Input with Timer • Front Panel Menu Controls • Universal Remote Control • 3-Language On-Screen Display • Parental Locks (V-Chip) • Closed Caption Decoder • Sleep Timer • Discrete IR Codes • 2 Piece Cabinet • Height....................................... 54 9/16" • Width..............................................54" • Depth......................................... 23 5/8" • Weight....................................162 lbs. Audio Performance Features • MTS Stereo/SAP with dbx™ • Simulated Surround Sound • Full Range Speaker System Warranty • 1 Year Parts and Labor Warranty In-Home Service • 2 Year Tube Warranty Due to variances in program productions and transmissions not all of the 1080 signal is displayed. 2 Not QAM Compatible, 480i Output 3 Requires the internal tuner plus an external tuner or other source device 4 HDMI input is compatible with DVI-HDTV (HDCP) signals when combined with an adapter cable. Adapter cable is not included. All specifications and dimensions are subject to change without notice. Refer to www. hitachi.us/tv for updated custom installation specifications. © 2006 Hitachi Ltd. All trademarks are the property of their respective owners. 1 Specifications • Color:.................................Gray/Black Inputs/Outputs • HDMI™ High-Definition Multimedia Interface:4 .....................1 • Wideband Component Video Inputs:.....................................2 • S-Video Inputs (Rear/Front):..........2/1 • AV Inputs (Rear/Front):..................4/1 • Antenna Inputs:.................................1 • Center Channel Input:............L/Mono • Fixed/Variable Audio Output:...........1 Page 01-03 Hitachi America, Ltd., Home Electronics Division 900 Hitachi Way, San Diego, California 91914 - www.hitachi.us/tv or 1-800-HITACHI Product Dimensions I 23-5/16 40 J 1-5/8 552.2 K 21-3/4 599.2 L 23-5/8 57" HDTV 54-1/16” 54-1/4” Quick specs B Height Width 23-5/8” A Depth H 49-11/16 592.3 I G 28 1262 57F59 I K F 39-1/16 710 A J E 23-15/16 992 G D 22-3/4 607 H C 54-1/16 578 B B 54-1/4 1372 D E F A 54-1/16 1378 L Inches 1372 C mm NOTE: All measurements are shown to the nearest 1/16th inch. This illustration is not necessarily drawn to scale and is intended for estimating space required for custom installations. Final measurements should be taken from the actual product before attempting installation. All dimensions are approximate measurements and subject to change without notice. Allow adequate space behind the unit for proper ventilation and cooling. Hitachi is not responsible for any typographical errors. Page 01-04 65F59 DIGITAL 65" Digital Projection Television Key Features Convenience Features Dimensions • 1080i Display1 • DTV Tuner2 • High-Brightness CRTs • High-Brightness 4-Element Lens System • Magic Focus Auto Digital Convergence • 1080i Digital Video Processor -3 HD Aspect Modes -6 SD Aspect Modes -1080i/720p/480p/480i Input Compatible -Split Screen/Picture in Picture3 • High-Contrast Fine-Pitch Screen • 3-Color Temperatures • Edge Enhancement (SVM) • Black Enhancement • Digital 3D Y/C Comb Filter • Energy Star Compliant • Day and Night Memory by Input with Timer • Front Panel Menu Controls • Universal Remote Control • 3-Language On-Screen Display • Parental Locks (V-Chip) • Closed Caption Decoder • Sleep Timer • Discrete IR Codes • 2 Piece Cabinet • Height......................................59 15/16" • Width..............................................61" • Depth......................................... 25 3/8" • Weight....................................259 lbs. Audio Performance Features • MTS Stereo/SAP with dbx™ • Simulated Surround Sound • Full Range Speaker System Warranty • 1 Year Parts and Labor Warranty In-Home Service • 2 Year Tube Warranty Due to variances in program productions and transmissions not all of the 1080 signal is displayed. 2 Not QAM Compatible, 480i Output 3 Requires the internal tuner plus an external tuner or other source device 4 HDMI input is compatible with DVI-HDTV (HDCP) signals when combined with an adapter cable. Adapter cable is not included. All specifications and dimensions are subject to change without notice. Refer to www. hitachi.us/tv for updated custom installation specifications. © 2006 Hitachi Ltd. All trademarks are the property of their respective owners. 1 Specifications • Color:.................................Gray/Black Inputs/Outputs • HDMI™ High-Definition Multimedia Interface:4 .....................1 • Wideband Component Video Inputs:.....................................2 • S-Video Inputs (Rear/Front):..........2/1 • AV Inputs (Rear/Front):..................4/1 • Antenna Inputs:.................................1 • Center Channel Input:............L/Mono • Fixed/Variable Audio Output:...........1 Page 01-05 Hitachi America, Ltd., Home Electronics Division 900 Hitachi Way, San Diego, California 91914 - www.hitachi.us/tv or 1-800-HITACHI Product Dimensions K 23-13/16 851 L 33-9/16 65" HDTV 59-7/8” 61” J 1-5/8 604 33-9/16” I 25-3/8 40 Quick specs Height B Width C Depth H 56-11/16 644 L G 31-13/16 1439 65F59 I K F 42-13/16 808 A J E 25-3/4 1087 G D 24-5/8 653 H C 61 624 B B 59-7/8 1549 D E F A 61 1521 L Inches 1549 C mm NOTE: All measurements are shown to the nearest 1/16th inch. This illustration is not necessarily drawn to scale and is intended for estimating space required for custom installations. Final measurements should be taken from the actual product before attempting installation. All dimensions are approximate measurements and subject to change without notice. Allow adequate space behind the unit for proper ventilation and cooling. Hitachi is not responsible for any typographical errors. Page 01-06 POWER SUPPLY INFORMATION DP-6X CHASSIS TRAINING PACKAGE SECTION 02 THIS PAGE INTENTIONALLY LEFT BLANK DP-6X CHASSIS POWER SUPPLY SBY 5.0V REGULATION CIRCUIT DIAGRAM F902 1 Amp 3 F901 8 Amp PA 2 D901 4 AC 1 L930 1 SBY 5.0V 2 Secondary T901 D949 6 5.7V + C908 - 5 Start Up 170V FB 1.08V F/B 4 4 I904 1 5.28V 1.08V 0V 1 R908 R957 C940 8 Start Up D907 OCP R909 R958 C911 Gnd 3 3 2 4.30V 0V Regulator Photocoupler I901 5 D962 MTZJ4.3B 170V 3 7 D 8 D C909 T901 Primary 1 R906 D206 2 Run 2 16.3V C912 Vcc Hot Ground from pin 4 of Bridge Rectifier D901 Cold Ground from pin 8 of T901 C905 PAGE 02-01 DP-6X CHASSIS POWER SUPPLY SW +115V REGULATION High Voltage Power Supply T902 Cold Ground from pin 16 of TP01 8 Floating Ground from pin 8 of TP01 R915 7.5P/P 9 1 of 3 AC Hot Ground from pin 8 of TP01 R913 R914 AC Run Start Up D911 Supplied from Relay S903 C914 17.91V 4 D910 1 150V T902 Driver/ Output IC 6 D Gnd S 2 3 1 I906 4 1 3 2 OCP/FB R921 R964 D914 C925 R916 0.05 B+ 115V 1 9.62V 8.58V Regulator Photocoupler FB 0.74V 0.0V 5 E946 0.5K 6 C961 12 R920 R963 8.58V I941 2 2 F903 5A T902 11 11.38V 7.13V 0.55V D913 VIn OCP/BD 7 176V D912 Osc B+ I902 AC Supplied from Relay S903 Raw B+ from D902 Pin 1 SW +10.5V 2 of 3 D945 Q941 E947 3K R951 0.39 C966 L948 Deflection B+ 115V R959 R952 D946 3 of 3 0.81A SW +115V R955 C967 D951 C968 3 R986 SW +35V 0.01A D948 R960 C906 D952 Protect OVP R956 D950 PAGE 02-02 DP-6X PROTECT-OVP SHUTDOWN BLO CK DIAGRAM PDS2 D944 Power_1 6 Power_1 If the 115V line experiences a high current demand, a high is impressed on the anode of D946 or If the 115V line goes too high, a high is impressed on the cathode of D948, turning it on. To Q944 Turns on Relay S903 Q980 / Q981 Turns off Relay S903 7 Any high impressed on the base of Q980 will cause the Relay to turn off. Q981 keep Q980 turned on as long as the Power_1 high remains. Source 115V Over Current Det. +115V 0.39 ohm Load AC Too High Det. Q941 D946 D951 +115V From I905 / Q901 D952 1 2 D948 D959 If the AC line goes too high, a high is impressed on the anode of D959 4 C 115V Too High Det. Power-Def 1/1 < Protect-OVP > B DH15 From DH13, CH17 off Pin 7 of Flyback Excessive High Voltage Det. From Q604 and Current Sensor R609 If the Vert 26V line experiences a high current demand, a high is impressed on the anode of D608 Deflection 1/1 - 5V Loss Detection RC47 D608 Vert. 26V Overcurrent Det. If the Heater pin line goes too high, a high is impressed on the cathode of DH15, turning it on. + 5V R632 7 PDT2 A 2 If the -5V line experiences a short or disappears, a high is impressed on the anode of DC27 DC27 - 5V RC46 Signal 6/7 (Sweep Detection) < Protect-OVP > 1 RE35 Current Sensor + 220V Over Current Det. 220V Overcurrent Detection DX07 QE08 ERG1 RE34 A 7 PCT Red CRT 3 B < VM Port > RY73 If the 220V line experiences a high current demand, a high is impressed on the anode of DX07 < CRT Prot > Green CRT Signal 5/7 (RGB Processor) PAGE 02-03 DP-6X CRT and -5V LOSS PROTECT-OVP (A) SHUTDOWN DIAGRAM RED CRT PWB CRT +220V Excessive Current Detection PDC1 Def +220V RE35 2.2 Ohm 1 ERG1 QE08 A RE30 RGB Processor Signal 6/7 GREEN CRT PWB To CRT 220V To VM Circuit PCT B 7 DX07 3 RE34 CE10 VM PORT RE29 + 5V RC47 VM PORT 1 RY73 < Prot-OVP > 1 CRT PROT RE31 Signal 6/7 -5V Loss Detection DC27 < Prot-OVP > - 5V 1 -5V Loss Det. RC46 Active PDT2 Normal SEE DEFLECTION SIDE (B) PROTECT-OVP SHUTDOWN DIAGRAM 2 8 A < Prot-OVP > PAGE 02-04 DP-6X DEFLECTION SIDE (B) PROTECT-OVP SHUTDOWN D IAGRAM Deflection Schematic Hi Volt H. Drive Flyback ABL Voltage Too High Det. LH01 ABL RH32 allows ABL fluctuations to manipulate the Trigger Po int of Shut Down as screen brightness varies. ABL is inverse proportionate to brightness. This prevents false triggering. DH15 Vs Def +28V PDT2 R629 0.68 Ohm R630 5OP LH06 1 DH14 Stops H. Drive 29.01V CH17 Excessive Hi Voltage Det. 2 8 FROM CRT and -5V LOSS PROTECT-OVP (A) SHUTDOWN DIAGRAM < Prot-OVP > A R631 IH01 7 OVP Any fluctuations in High Voltage will also be reflected by the 50P output P/P. By monitoring the 50P (50 Pulse) rises in High Voltage will be sensed. If High Voltage climbs too high, DH15 will fire and trigger a shut dow n event. I601 Q604 RH26 7 RH25 1 C604 8 DH13 RH32 Vertical Output Circuit L603 RH23 RH21 RH24 10 High Voltage Sensing Circuit TH01 Active C610 Normal D608 R632 4 B < Prot-OVP > 1 Excessive Vertical Current Det. SEE 115V TOO HIGH AND OVER CURRENT DETECTION (B~C) PROTECT-OVP DIAGRAM If the Vertical Output IC has a problem, R629 will sense the current rise. The voltage drop will be reflected at the base of Q604 turning it on and producing a Shut Down high. PAGE 02-05 DP-6X 115V TOO HIGH AND OVER CURRENT DETECTION (B~C) D IAGRAM Power-Def Schematic CP45 TP01 DP46 17 16 3K EP45 RP47 QP41 0.39 Ohm RP49 CP51 CP59 RP54 EP46 500 RP53 Def +115V Deflection B+ (115V) Excessive Voltage Det. RP55 RP48 Deflection B+ (115V) Excessive Current Det. Deflection B+ 115V DP58 DP55 DP59 DP56 CP63 2 D926 SEE DEFLECTION SIDE (B) SHUTDOWN DIAGRAM 4 B < Prot-OVP > C 6 SEE PROTECT-OVP (C) SHUTDOWN CIRCUIT PAGE 02-06 DP-6X PROTECT-OVP (C) SHUTDOWN CIRCUIT Power-Def Schematic Power On/Off From Sub Micro I002 Pin 62, Q012, Q013 Power_1 6 PDS2 Raw B+ off on SBY +5V D902 R947 1 R924 2 AC S903 For Power Supply D902 D942 R945 5 T902 D947 Q944 Relay Driver 4 AC R925 AC R942 D915 9V Hot Ground C942 c (8.9V ~ 9.3V) R926 R927 C916 AC 175 On Q901 SBY 5V I905 2 4 Run B+ 16V R980 1 Q981 C980 PAGE 02-07 R923 Q980 R982 C981 R981 7 SEE 115V TOO HIGH AND OVER CURRENT DETECTION (B~C) DIAGRAM D959 AC Voltage Too High Detection 3 1 6 DP-6X CHASSIS L.E.D. (Visual Troubleshooting) for the Deflection Power Supply +115 Deflection B+ L.E.D. for visual troubleshooting observation. See the Deflection Power Supply Shut Down Circuit Diagram for details. D952 T902 PROT_OVP +115V Over Current +115V +115V R951 0.39 Ohm D945 D951 Active Hi E947 3 Amp 11 12 GND 1 SW + 115V Q941 C961 D946 C966 R959 D948 R952 C967 L948 0.85A +115V Over Voltage R956 R960 C966 D950 GREEN L.E.D. SW +115V Active (LED) PAGE 02-08 DP-6X POWER ON and OFF CIRCUIT DIAGRAM Power-Def 1/1 Signal 1/7 Main Micon SBY +5V PDS2 3 D902 R947 1 AC 1/2 For Power Supply off on PFT1 SW+ 5.6V AC Route when first applied L931 5 From D954 off Main Switching Transformer Pin 13 Signal 4/7 Audio 1 C931 S901 For Power Supply D940 D944 PAGE 02-09 C942 off R940 R907 2.2 ohm RUSH R943 Q942 Relay Driver SW 9V Regulator F902 1 Amp S901 Turns On after the SW 5.6V becomes active. This prevents surge current during capacitor charging. Power LED Not Used 10 IA04 C944 R942 SW+ 10.5V on Power LED D947 Relay Driver Conv + 28V 67 off D942 Q944 3 Power On/Off 1 R945 Raw B+ for T902 / I902 SW 5.6V Regulator 61 POWER 1 on S903 AC I907 Q012 6 4 2 Q013 I002 Sub Microprocessor 3 SW+ 9V 9 PFS RH30 DM10 F901 8 Amp AC 1/2 PA 2 AC 1 POWER LED Ft Control THIS PAGE INTENTIONALLY LEFT BLANK VIDEO INFORMATION DP-6X CHASSIS TRAINING PACKAGE SECTION 03 THIS PAGE INTENTIONALLY LEFT BLANK DP-6X CHASSIS VIDEO SIGNAL SELECTION PATH CIRCUIT DIAGRAM Signal 3/7 AV Selector For Micro. Sync detection I501 G/Y/CVBS Video Select 36 Signal 2/7 Tuners MTV-CVBS U303 Main Tuner 4 22 CVBS2 23 See Main Sync Signal Path For Micro. Main CC detection 100 MAIN OUT Sheet 13 V5 S5 Front Control PWB 1 PFT 2 Aux 5 Video V3V 2 Aux 5 S-Y V3Y 7 Aux 5 S-C V3C 9 S-5 Det. 11 Y 32 16 V1 20 Y1 18 C1 17 S-1 PST Main CY/Y/CVBS Main_Pb C Pb 33 C Pr Main_Pr 34 Sub_Pr C Pr 30 Sub_Pb C Pb 29 Component 4 Y 61 CY2 Component 4 Pb/Cb S2 63 PR1 Aux 2 Video Aux 2 S-C S-2 Det. Aux 1 Video V1 PAGE 03-01 S1 Aux 1 S-Y Aux 1 S-C S-1 Det. NOT AVAILABLE 64 5 CY PB QX11 PR 74 72 QX10 68 66 CLK 45 SDL2 DATA 44 SDA2 67 68 30 True Y IX01 Rainforest Signal 5/7 RGB Processor 10 V3 Aux 2 S-Y 3 True 1080I 61 True Pb Rainforest IC (Flex Bypass) 60 True Pr 65 PB1 Component 3 Pr/Cr V2 Y 24 V7 Component 3 Pb/Cb 60 See Sub Sync Signal Path 67 CY1 Composite 3 1 For Micro. Sub 97 CC detection 57 PR2 Component 3 Y 56 QX09 59 PB2 Component 4 Pr/Cr V3 28 26 V8 SUB OUT Composite 4 V4 Y Sub CY/Y/CVBS FLEX CONVERTER DTV-CY 14 Y3 Y5 DM In 11 12 C3 NTSC for Monito Out 11 S-3 C5 DM In 13 DTV-C 4 V2 G/CY1 73 6 Y2 PDTV1 15 U304 Digital Tuner 16 HDV-Y R/PR1 69 17 HDV-PR B/BR1 71 MON OUT 18 HDV-PB 8 C2 5 S-2 19 Signal 2/7 Tuners DP-6X Chassis A.B.L. Circuit Diagram ABL RX33 QX12 RX34 CX17 DX02 RX38 RX36 RX35 DX01 75 SW +9.3V CX18 RX37 ABL 78 IX01 Rainforest IC CX21 CX20 Signal 1/7 PWB I001 Sub Micro SDA1 28 SCL1 30 Signal 5/7 PWB R091 R090 SW +115V Deflection PWB B+ ABL switches slightly reduce the overall operational point of ABL due to the loss of overall bright ness levels. RH42 47K PDT2 2 BLACK_ PANEL RH27 30K To QH01 Collector of High Voltage Output Transistor QH05 RH41 B_Side_Panel RH40 RC95 ABL_SW 2 RH30 QH03 RH35 RH33 2.2K RH28 39K ABL Switch 1080I 50P C 10 ABL Switch 7 ABL PAGE 03-02 As Brightness goes Up, ABL Voltage goes Down. (Inverse Proportional) CH18 CH17 Stops H. Drive IH01 OVP 7 DH14 CH14 CH21 RH26 RH21 RH32 180K RH25 13K RH31 6.8K 3 DH13 RH23 1 Gnd To Anodes LH01 SW +10.5V DH16 RD30EB4 58 FBT LH06 8 [ Current Path ] Clamp Black Side Panel To Focus RH27 & RH28 ABL Pull-Up Resistors RH43 180K PDS2 ABL 9 TH01 59 RH09 CH10 Protect_OVP RH24 43K DH15 HZ22-2L AUDIO INFORMATION DP-6X CHASSIS TRAINING PACKAGE SECTION 04 THIS PAGE INTENTIONALLY LEFT BLANK DP-6X CHASSIS AUDIO SIGNAL SELECTION PATH CIRCUIT DIAGRAM Signal 2 Tuners ANALOG TUNER U303 Signal 3 AV Selector Signal 2 Tuners U303 C515 MTV-L 2 83 L6 C514 MTV-R 1 Front Control PWB Aux 5 Audio L V5 84 R6 PFT2 L8 80 C512 DTV L C513 DTV R R8 79 1 7 I301 5 CLK 45 SDL2 DATA 44 SDA2 82 R7 C551 AVX 3 Audio L 92 R2 MAIN OUT CA15 89 L3 20 90 R3 C545 2 I501 19 Audio Select CA29 CA27 88 R4 C546 C540 PAGE 04-01 QA06 CA30 CA25 QA07 QA04 86 R5 C541 C576 C574 Monitor Audio Out L 2 L In 4 R In CA28 CA26 85 L5 AVX 1 Audio R IA02 Audio Control CA12 87 L4 AVX 2 Audio R AVX 1 Audio L CA12 R1 Out 96 CA15 AVX 3 Audio R AVX 2 Audio L 1 Selected Audio Out C548 C549 MONITOR OUT 12 A Out L 91 L2 AVX 4 Audio R L1 Out 97 V1 5 81 L7 C552 V2 13 A Out R Aux 5 Audio R AVX 4 Audio L V3 3 C527 4 C526 V4 Digital Tuner U304 MON OUT 1 L Out 1 Hi-Fi C554 L1 93 IA03 Audio Out QA05 100 R Out 1 C573 C575 7 1 PL 12 C553 Monitor Audio Out R PR CA41 1 CA42 R1 94 Signal 4/7 Audio THIS PAGE INTENTIONALLY LEFT BLANK DEFLECTION INFORMATION DP-6X CHASSIS TRAINING PACKAGE SECTION 05 THIS PAGE INTENTIONALLY LEFT BLANK DP-6X SWEEP LOSS DETECTION CIRCUIT Cut Off from Micro during "Setup" to prevent false triggering of V Sweep Loss during RGB Cut Off adjustment. Cut Off From Pin 60 I002 Sub Microprocessor (Signal 1/7) QC06 RC21 RC23 RC22 RC22 CC13 V Det RC18 DC21 PDT2 V. Blk. QC10 7 CC06 CC08 14V P/P Vertical Blanking 10 From Pin 11 I601 DC20 RC25 SW +10.5V RC16 DC26 RC14 RC27 From Deflection 1/1 CC10 RC30 Horizontal Blanking From Q706 Emitter QC07 DC23 H Det RC17 DC22 DC19 8V P/P H. Blk. QC09 RC24 CC09 4 RC13 QC11 DC18 QC08 RC28 RC29 RC26 RC19 RC37 DC25 Def 6.3V RC34 QC13 DC24 CC11 RC32 RC36 A RC33 RC35 Signal 6/7 Sweep Detection See Video Mute Generation Circuit CC12 Protect Switch Protect HV QC12 RC31 PAGE 05-01 THIS PAGE INTENTIONALLY LEFT BLANK MUTE CIRCUIT INFORMATION DP-6X CHASSIS TRAINING PACKAGE SECTION 06 THIS PAGE INTENTIONALLY LEFT BLANK DP-6X CHASSIS VIDEO MUTE GENERATION CIRCUIT DIAGRAM Signal 6/7 Sweep Detection DCU 2/2 Mute Dig Conv. IT01 pin 45 Def 6.3V SW +9.3V PDS2 RC10 DC16 QC24 AC SIGNAL From Power-Def1/1 From Pin 3 I903 RC14 7 QC05 RC11 SW +9.3V To IX01 Pin 39 E Mutes Video RC02 0 ohm 11 B RC58 From pin 1 IK03 QC04 QC02 Mutes Convergence when +28V line drops. Active Low RC07 DC15 QC23 V_MUTE 1 V Mute0 PDS2 Prot HV AC Det Prot HV V Mute 3 DC17 PAGE 06-01 I002 Hi CC02 V_MUTE 2 C CONV. AMP Signal 7/7 DC29 Q024 Signal 4/7 Mutes Audio RC56 Active RC05 RC03 QC17 RC57 A RC06 DC14 QC01 PCT AC Det Normal Off CC04 Mute CC29 RC08 RC09 V_MUTE 1 Signal 5/7 RGB Processor PDCU CC03 Signal 3/7 AV Selector To Q504, Q505 F through D512 Mutes Monitor Out Audio To Mute CRTs Prot_HV From Sweep Loss Detection Circuit QC07 & QC12 1 Hi Active Shuts off IH01 High Voltage Driver IC V Mute 72 Signal 1/7 Main Micon D Q025 AC Det = Loss of AC Prot HV = Loss of H or V Sweep V Mute = Channel Change, Power Off/On, Auto Programming, etc.. DP-6X HI VOLTAGE MUTE CIRC UIT Deflection 1/1 High Voltage Driver IC IH01 14 Stops From Mute Generation Circuit Diagram PDS2 RH06 DH12 RH16 Prot HV TH01 From Q706 H. Blk 3 D Drive DH02 Flyback + 115V RH07 Stops 3 Osc 1 DH04 RH06 Active 9 H Drive QH02 Lo 10 RH13 QH01 Horz Output RH37 QH04 DH03 RH36 PAGE 06-02 DP-6X CHASSIS AUDIO OUTPUT SELECTION MUTE CIRCUIT DIAGRAM IA02 SP_R 19 20 Audio 1 Control SP_L 2 Right Main Audio CA28 RA40 4 Left Main Audio CA27 RA39 CA29 2 RA46 QA08 DA11 7 RA47 RA45 6 PL DA12 L 12 Ripple Filter 1 CA42 CA48 RA57 Q025 1 R 72 Q024 QA09 RA49 AUDIO MUTE IA03 Audio Out CA41 11 MUTE CA49 V_MUTE PR CA30 RA49 QA10 QA03 DA05 73 Q018 Q019 CA50 DA13 RA50 CA47 I002 Micro DA14 SP_MUTE 74 SP_OFF Signal 1/7 Main Micon AU+29V RA58 RA59 QA12 Signal 6/7 Sweep Detection RA60 QA14 RA01 C PAGE 06-03 V_MUTE 2 QA11 SW +9V 4 IA04 3 SW +10.5V 5 2 1 RA03 Signal 4/7 Audio DP-6X CHASSIS RAINFOREST IC MUTE CIRCUIT DIAGRAM Signal 5/7 RGB Processor SW+ 9.3V PST QX06 Signal 3/7 A/V Selector 9 FC V Blk RX09 Flex Converter QX05 10 FC H Blk RX08 RX12 IX01 RGB Processor (Rainforest IC) Signal 6/7 Sweep Detection RX64 H Blk RX63 E V_MUTE 1 R Out 12 PAGE 06-04 G Out 13 B Out 14 PDT2 4 DX03 FBP In 39 Deflection 1/1 From Q706 Emitter DP-6X CHASSIS MONITOR AUDIO OUTPUT MUTE CIRCUIT DIAGRAM I501 R3 Out 100 Video / Audio L3 Out 1 Selector Right Audio Left Audio C576 R5C7 C574 C575 R5C6 C573 Right Audio Left Audio Q504 R5E3 Signal 6/7 Sweep Detection Q505 F V_MUTE R5C9 D512 R5E2 V_MUTE 1 D510 72 Q024 Q025 I002 Micro Signal 1/7 Main Micon MONITOR OUT Signal 3/7 AV Selector R5C8 R5C5 R5C4 PAGE 06-05 THIS PAGE INTENTIONALLY LEFT BLANK DIGITAL CONVERGENCE INFORMATION DP-6X CHASSIS TRAINING PACKAGE SECTION 07 THIS PAGE INTENTIONALLY LEFT BLANK DP-6X CHASSIS "DIGITAL CONVERGENCE" INTERCONNECTION CIRCUIT DIAGRAM Main Micon Signal 1/7 I007 1 4 I002 Q028 34 3 56 IR Out 6 57 DCU IR Sel AV Selector Signal 3/7 To Rainforest 55 MAG SW In (Lo) 33 32 Flex OSD B OSD G OSD R 1 PB 3 PR 5 QX10 QX09 52 DCU Size DC_B IR Digicon 51 Busy In 53 Digicon Adj QX21 DC_R Magic Focus 5 29 DC Adj 2 17 8 SC01 Sw Adj Service Only PFS -5V Sby +5V R QX28 7 1 Mute 4 RH Main Micon Signal 1/7 2 Sensor PWB PSET +5V PAGE 07-01 LED S0 ~S7 8 Total Sensors 35 V Blk 2 19 DC_Size 7 G 5 R 17 RH + - GH + - 10 11 8 PCR 1 3 CYH+ CYH- 22 23 6 4 PCG 20 6 CYH+ 9 4 CYHConv-24 5 9 13 6 IS06 1 IT06 GH 6 12 8 7 27 Mute 65 3 7 IT05 16 S7 75 S6 7 18 S6 76 6 5 20 22 S5 77 IS07 S4 S4 78 S3 4 24 S3 79 S2 3 26 S2 80 S1 2 28 S1 1 S0 1 30 S0 2 12 18 RK37 8 CYV+ PCB 1 22 23 BV CYV- + - 19 10 1 CYV+ + - BH 1 CYV- 10 11 GV BV 8 3 IK02 GV 7 DCU 1/2 B 3 3 12 9 PDCU CYV- -5V S7 S5 RV + - 14 15 5 33 H Blk 2 10 Gnd Ft. Control PWB 40 Sweep Det Signal 6/7 CYV+ 7 18 47 54 90 125 3 IR Receiver +5V 9 14 15 BH 3 20 + - 17 CYH+ CYH- IT01 45 Mute RES 7 1 DT01 DCU 2/2 1 DC29 Mute "Lo" IK03 2 RK38 1 Conv+28V DK27 RK40 Conv Amp Signal 7/7 4 6 To Blue Convergence Yokes 1 2 IR Out From IC01 IK01 3 +5V QM01 HMO1 QX32 60 3.3V Reg From QC16 G 12 RV 66 IS04 5 QX36 18 IT07 PCT B 59 44 QM04 QX17 25 SW_ADJ 15 OSD R From Micro To Green Convergence Yokes 21 7 QX18 6 14 61 IS07 DC_IR 2 OSD G 13 Conv+28 48 Magic SW 2 QX19 YS3 IS06 DC_Busy 25 SM09 12 49 DC_B 19 1 13 24 Dig OSD R PDCU 50 DC_G 27 14 25 Dig OSD G 2 53 DC_R 23 19 Pb1 In OSD 18 Pr1 In OSD B To Red Convergence Yokes DC_YS 31 DM07 QX16 DC _YS Microprocessor 67 26 Dig OSD B QX22 DC_G Magic Sw Out 54 Y1 In To CRTs 6 IR In 20 66 68 QX23 BUSY Q028 IX01 Includes OSD QX11 CY RGB PROCESSOR Signal 5/7 Rainforest PST DP-6X CLU-4361S REMOTE SHOWING DCAM FUNCTIONS CLU-4361S p/n HL02291 When Convergence is adjusted by this Remote, this Remote must be changed to DCAM mode. Remote begins in TV mode. While holding the "TV" key down, press and release "MENU" then press and release "INFO" then release the "TV" key. CLU-4361S Returning the Remote to Normal Mode Remote begins in DCAM mode. While holding the "TV" key, press the "0" th en the "1" keys. Be sure to return the Remote Control to Normal Mode after DCAM. PAGE 07-02 CHASSIS PICTURES DP-6X CHASSIS TRAINING PACKAGE SECTION 06 THIS PAGE INTENTIONALLY LEFT BLANK DP-6X PWB PICTURES SIGNAL PWB PAGE 08-1 DP-6X PWB PICTURES DEFLECTION PWB PAGE 08-2 DP-6X PWB PICTURES DIGITAL PWB DCU PWB CONTROL PWB PAGE 08-3 DP-6X PWB PICTURES CRT PWB PAGE 08-4 KEY PARTS DP-6X CHASSIS TRAINING PACKAGE SECTION 08 THIS PAGE INTENTIONALLY LEFT BLANK DP-65 KEY PARTS IDENTIFIED P/N UE25921 UE25941 UE25951 JT25591 JT25601 JT25581 JT25561 JT25551 51F59 PWB PART NUMBERS DESCRIPTION DP65 CHASSIS ASSY DP6X SIGNAL BLOCK ASSY DP65 POWER DEFLECTION BLOCK ASSY DP6X CPT/CONT PWB ASSY DP6X SENSOR PWB ASSY POWER DEFLECTION PWB DIGITAL PWB ASSEMBLY SIGNAL PWB ASSEMBLY 51F59 OTHER ADDITIONAL KEY PARTS P/N DESCRIPTION HL02291 CLU-4361S REMOTE CONTROL KS21431 51 DP6X 2ND MIRROR QD53401 51F59 SPEAKER GRILLE UX26071 DP65-51 SVC PRT ASSY (R) UX26072 DP65 51 PRT ASSY (G) UX26073 DP65 51 PRT ASSY (B) UX26081 DP65 SCREEN ASSY 51 UX26091 51F59 SVC FRAME ASSY P/N UE25921 UE25941 UE25951 JT25591 JT25601 JT25581 JT25561 JT25551 57F59 PWB PART NUMBERS DESCRIPTION DP65 CHASSIS ASSY DP6X SIGNAL BLOCK ASSY DP65 POWER DEFLECTION BLOCK ASSY DP6X CPT/CONT PWB ASSY DP6X SENSOR PWB ASSY POWER DEFLECTION PWB DIGITAL PWB ASSEMBLY SIGNAL PWB ASSEMBLY 57F59 OTHER ADDITIONAL KEY PARTS P/N DESCRIPTION HL02291 CLU-4361S REMOTE CONTROL KS09403 57 DP6X MIRROR PH33954 57F59 SPEAKER GRILLE UX26074 DP65-57 SVC PRT ASSY (R) UX26075 DP65 57 PRT ASSY (G) UX26076 DP65 57 PRT ASSY (B) UX26082 DP65 SCREEN ASSY UX26092 SCREEN FRAME ASSY P/N UE25921 UE25941 UE25951 JT25591 JT25601 JT25581 JT25561 JT25551 65F59 PWB PART NUMBERS DESCRIPTION DP65 CHASSIS ASSY DP6X SIGNAL BLOCK ASSY DP65 POWER DEFLECTION BLOCK ASSY DP6X CPT/CONT PWB ASSY DP6X SENSOR PWB ASSY POWER DEFLECTION PWB DIGITAL PWB ASSEMBLY SIGNAL PWB ASSEMBLY 65F59 OTHER ADDITIONAL KEY PARTS P/N DESCRIPTION HL02291 CLU-4361S REMOTE CONTROL KS07997 65 DP6X MIRROR PH34152 57F59 SPEAKER GRILLE UX26071 DP65 65 SVC PRT ASSY (R) UX26072 DP65 65 PRT ASSY (G) UX26073 DP65 65 PRT ASSY (B) UX26083 DP65 SCREEN ASSY UX26093 SCREEN FRAME ASSY PAGE 09-01 THIS PAGE INTENTIONALLY LEFT BLANK THINGS YOU SHOULD KNOW DP-6X CHASSIS TRAINING PACKAGE SECTION 10 THIS PAGE INTENTIONALLY LEFT BLANK August 2006 (ver 01) DP-6X Things You Should Know Index TOPICS Materials prepared by Alvie Rodgers C.E.T. PAGE SECTION (10) THINGS YOU SHOULD KNOW: The Number on the Left of the Topic is the same number as shown on the Things You Should Know page on the Web Site. • (01) ATSC Reception problems ------------------------------------------------------------------ 10-01 • (02) Lead Free Solder beginning in 2004 ------------------------------------------------------ 10-02 • (03) Fan Part # GS00821: In Digital Module ---------------------------------------------------- 10-02 • (04) CRT- I need to Change All Three CRTs, what to do? ------------------------------- 10-03 • (05) How to do a Software Upgrade on the ATSC Digital Module ---------------------- 10-04 • (06) How to Troubleshoot Digital Convergence Problems ------------------------------- 10-08 • (07) Serial Number is shown on a Label on the Front Right Hand Side --------------- 10-10 • (08) HDMI Shows Error Message on HD Channels from Cable Box ------------------- 10-10 • (09) Using Cut Off Adjustment to Check for Defective CRT --------------------------- 10-11 • (10) Picture Dark or Abnormal, Changing Color Temperature -------------------------- 10-11 • (11) POD (CableCard) Problems ----------------------------------------------------------------- 10-11 • (12) Lip Sync Issues --------------------------------------------------------------------------------- 10-12 • (13) HD Generator Suggestions ------------------------------------------------------------------ 10-13 • (14) Some VGA to Component Adaptors cause Picture Problems -------------------- 10-13 • (15) POD (CableCARD) no longer works after Initialization ------------------------------- 10-13 • (16) POD (CableCARD) Digital Tuner Problem --------------------------------------------- 10-13 • (17) What is the Size of the Allen Wrench for Splitting the Cabinet ---------------- 10-13 • (18) HDMI Doesn’t Work --------------------------------------------------------------------------- 10-13 • (19) Downloading the Latest Software ------------------------------------------------------- 10-14 • (20) Losing Most Channels on the PinP Window (With CableCARD) -------------- 10-14 • (21) Preventing CRT Phosphor Spots -------------------------------------------------------- 10-15 • (22) Horizontal Line Noise in Top Corners Prevention ---------------------------------- 10-16 Table of Contents Page 1 of 2 This Page Intentionally Left Blank DP-6X THINGS YOUR SHOULD KNOW (01) ATSC Reception problems: Important information to gather when encountering a customer with ATSC reception problems. Please gather all information listed below before calling for Technical Assistance. (See below for contact information). 1. Make sure we are dealing with ATSC reception issues only, please. 2. Model and serial number...By the way, we are placing ALL model and serial numbers on the front right hand side of the units. 3. Did the customer run auto programming? Please run auto programming again just in case. 4. Signal strength on this channel? Available through customer menu. 5. What kind of antenna are they using? Rabbit Ears? Roof antenna? Are they using antenna rotor? Cable? 6. What is the Software version? This is available through the customer menu. 7. What channel is having the problem? Digital channels are a main channel and a sub channel, always displayed as : 25-1 or 25-2 and 25-3, 25-4, etc,. Please ask for all sub channels available, sometimes there are more than one or two. 8. Do they know it's respective channel on analog format (NTSC)? Is the analog channel coming in ok? Just to give you an example: San Diego channel 8 NTSC is equal to channel 25-1 ATSC, when you do auto programming, you will see 8-1 on TV OSD, but you can also enter: 25-1 and you will also get to the same 8-1 digital channel. We all must be very familiar with this fact in order to see if we can select the channel directly, without the need to do auto programming. See www.transmitter.com for state by state listing of analog/digital equivalency table, their location and their power. 9. What is the stream reception format? You will see: 480i, 480p, 720p or 1080i on the upper section of the OSD when receiving. 10. What is the Channel content? Is this ABC, CBS, PBS? And station identification is needed, like WYCN TV Channel 5 or whatever. 11. Try to contacted the Local Station? Explain the problem to the engineer. They may be able to investigate and make some corrections. If you did speak to someone at the station, whom did you talk to? Name and phone number or e-mail address? 12. Local stations are starting to provide a feedback for their customers mostly through a web page....They always want to know if customer are receiving the Digital Channels and are always looking forward to get feedback. 13. Try PIP and make sure the PIP channel is also the same channel as the one they are trying to receive with Ant C. 14. Describe problem and if possible, send a picture/drawing or a video. 15. Is sound OK? 16. Customer name and phone numbers, please. Once this information is gathered, please contact Hitachi Technical support (see below) and provide all information gathered. Phone: 800-393-2369 (Authorized Servicers only) Phone: 619-591-5352 (Non-Authorized Servicers only) FAX: 619-482-8045 EMAIL: techsupport@hhea.hitachi.com (Continued on page 2) PAGE 10-01 DP-6X THINGS YOUR SHOULD KNOW (02) Lead Free Solder beginning in 2004. 2004 product will use lead free solder (unleaded) to help preserve the environment. Please read these instructions before attempting any soldering work. Caution: Always wear safety glasses to prevent fumes or molten solder from getting into the eyes. Lead free solder can splatter at high temperatures (140 degrees F) . Lead free solder indicator Printed circuit boards using lead free solder are engraved with an "F". Properties of lead free solder The melting point of lead free solder is 104 ~ 122 degrees F. higher than leaded solder. Servicing solder Solder with an alloy composition of Sn-3.0Ag-0.5Cu or Sn-0.7Cu is recommended. Although servicing with leaded solder is possible, there are a few precautions that have to be taken. (Not taking these precautions may cause the solder to not harden properly, and lead to consequent malfunctions.) Precautions when using leaded solder Remove all lead free solder from soldered joints when replacing components. If leaded solder should be added to existing lead free joints, mix in the leaded solder thoroughly after the lead free solder has been completely melted (do not apply the soldering iron without solder). Servicing soldering iron A soldering iron with a temperature setting capability (temperature control function) is recommended. The melting point of lead free solder is higher than leaded solder. Use a soldering iron that maintains a high stable temperature (large heat capacity), and that allows temperature adjustment according to the part being serviced, to avoid poor servicing performance. Recommended soldering iron: Soldering iron with temperature control function (temperature range: 320-450 degrees F . Recommended temperature range per part: Part Soldering iron temperature Mounting (chips) on mounted PCB 608 +/- 86 degrees F Mounting (chips) on empty PCB 716 +/- 86 degrees F Chassis, metallic shield, etc. 788 +/- 86 degrees F (03) Fan Part # GS00821: In Digital Module • The Fan Runs all the time. This is normal. • All sets with a Digital Module (ATSC Tuner) has a Fan. • The below chassis utilizes a Digital Module which contains many sophisticated circuits. A cooling fan is utilized in all Digital Modules (ATSC). It is normal for the customer to hear air circulating and the fan running if the room is quiet. This can be compared to a computer cooling fan as they are very similar. The customer may not be aware of the fact that his or her projection television has a cooling fan incorporated. Please educate the customer with this information. Do not assume that just because the customer can hear the fan that there is a problem with the fan. Only if the fan produces a grinding or ticking sound should it be considered to be defective. • These Fans are running ALL the time. This is NORMAL operation. These applies to ALL Hitachi units with an integrated ATSC tuner. • This is, is getting to be a very important issue for all our customers. Remember, one huge difference between their previous TV sets and any of these NEW Digital Models is the fact that their previous TVs never had a fan...therefore, there was no fan noise at all! • Now, once they notice the fan noise, some of them do not like it. First thing they do is: They call for service. Many Technicians MAY NOT be familiar with these units, therefore, they can not tell if the noise is actually normal or too noisy! (Continued on page 3) PAGE 10-02 DP-6X THINGS YOUR SHOULD KNOW • • Replacing the fan just to see if the noise goes away or to reduce it is just too much work and it will be for nothing....then the Customers will be disappointed to find out the noise is still there (after any of the fans/ modules/or even complete TV sets were replaced). But once they hear the explanation related to the REASON why they hear this noise, they always understand. New Technology requires the use of faster processors, these processors require the use of cooling fans. Although minimal, these fans do make noise when they are running, this is "normal" operation noise. (04) CRT- I need to Change All Three CRTs, what to do? In a situation where it becomes necessary to replace all three CRTs, it may not be as big a job as first considered. There are many times in which if a couple of First steps are followed, the job may be very easy thanks to Magic Focus. IMPORTANT: You must find the reason for the CRT burn ( if this is the reason for replacing all three CRTs at once), before installing the new CRTs. Look for Deflection collapse caused by poor solder connections on the Yoke Plugs, Convergence Yoke Plugs, Vertical Output IC, Drive Transformer and/or Flyback. Make sure the H and V Sweep Loss circuit is functioning. Make sure the Yoke plugs are seated properly. Clean all Spark Gaps. Pry off the caps on top of each spark gap and clean the contacts with a thin, fine sand paper. Reinstall the caps. Solder all interconnections between the Signal PWB and the Deflection PWB. THINGS TO REMEMBER: • If at least one of the defectives CRTs is properly set up (in relationship to geometry) then it can be used as a guide for setting up the new CRTs. This means you have checked that the Center is in dead center and that the lines running left to right and top to bottom are straight and all the grids are linear. • • • Magic Focus will be your biggest friend in the process. If at all possible, do not remove all three defective CRTs at once. Leave the best adjusted CRT in place until the other two new ones have been installed and aligned. You most likely will not need an Overlay unless the set is already a mess related to geometry. HERE IS THE PROCESS: • After receiving the new CRTs, first determine which of the defective CRTs is best aligned. (This doesn't matter which color). For our discussion we will say it's the Red. • Remove the Defective Green CRT. • Install the New Green CRT. • Clear the RAM. (With Power Off, press and hold the Service Only switch. The press the Power Button on the Front Panel). Set will come on with cleared RAM. No Convergence Correction. • Loosen the Yoke on the New Green CRT and rotate it until it matches the Defective Red Vertically and Horizontally (TILT) while looking only at the center. Don't worry if the Center isn't aligned with the Red. After adjusting the Tilt, tighten the Yoke. • Run a string from the top left corner to the bottom right corner. • Run a string from the top right corner to the bottom left corner. (This will give you a center mark where the strings cross.) • Now, using the centering magnet for Green, adjust Green to the center mark where the two strings cross. Remember that the RAM has been cleared. In this condition the Red is to the Left of Dead Center and the Blue is to the Right of Dead Center. This is normal. • Now, Power Off the set. Then turn it back on. This will restore the previous Convergence stored data. If you checked the Red centering before all of this began, (Item 1 under Things To Remember above), then the new Green CRT and defective Red CRT centers should now match. • Run Magic Focus. This should now return the set to proper Convergence or at least very close where only a minor touch up should be required. You can do this touch up now or wait and do it after all three CRTs has been replaced. Now, do the same thing with the New Blue CRT starting with step (2) above. PAGE 10-03 DP-6X DIGITAL MODULE SOFTWARE UPGRADE PROCEDURE How to do a Software Upgrade on the ATSC Digital Module. Check web site for current version. Preliminary Procedure: Note: MMC = Multi-Media Card (Page 1 of 3) Gain access the rear of the TV. Insert the MMC (Figures 1 and 2) into the Multi Media Card slot as shown in Figures 3 - 6. Push the MMC in until you hear a click, indicating the MMC is properly inserted. Bottom View - MMC (Figure 2) Top View - MMC (Figure 1) Example of Software Version Note: Software Version number will vary in accordance to the Version Released. Your Version may be different than the one shown. Rear View - TV Jack Panel (Figure 3) Close Up View of the MMC Slot (Figure 4) MMC Fully Inserted (Figure 6) MMC goes in this direction (Figure 5) Continued on Next Page PAGE 10-04 DP-6X DIGITAL MODULE SOFTWARE UPGRADE PROCEDURE Upgrade Procedure: Step (1) Insert MMC Card fully into slot until it clicks. Step (2) Turn the TV ON. Step (3) Press the MENU button on the Remote. Step (4) Menu will appear Step (6) The Setup Menu will appear. Step (5) Thumbstick Down and Highlight SETUP and press SELECT. Step (7) Continue to Cursor down and highlight Upgrades and press Select. Step (8) If the MMC card isn't already inserted, insert MMC card fully until it Clicks. Step (9) Cursor Down and Highlight Upgrade Now and press Select. Continued on Next Page Continued on Next Page PAGE 10-05 DP-6X DIGITAL MODULE SOFTWARE UPGRADE PROCEDURE Step (10) The Upgrade begins. Upgrade will take approximately 2 ~ 3 minutes. Step (11) After the Software Upgrade is Complete, *If your product has already been upgraded or is the same version as the one on the MMC, this step will be bypassed. Note: The old Software Version will still appear on the screen. The updated software version will not appear until the TV is Reset. See the Next Step. Step (12) After Software upgrade/s have been successfully completed, please turn the power off. Remove the MMC Software Upgrade Card from the rear of the TV. Then unplug the AC power cord for 60 seconds to reset the TV. Plug in the AC power cord. Repeat steps 2 through 8 to check the software version for verification. Step (13) Your software version should now show correct version number as shown on the MM Card front Label. Note: To remove the MMC, gain access to the rear of the set. Push the card in until a click is heard, this will release the MMC and then remove the card. NOTE: The MMC must be removed and returned to Hitachi in order to receive any future upgrades. Continued on Next Page PAGE 10-06 DP-6X DIGITAL MODULE SOFTWARE UPGRADE PROCEDURE IMPORTANT NOTE: Are you aware that HDTV/SDTV Channels that are shown On Screen may not be the actual channel numbers that you would press on the TV remote control to tune that specific channel? In other words, what you see on the PTV Screen is called VIRTUAL CHANNEL. As and example, to receive (8-1) in San Diego (with out running auto programming in a DTV ) you will actually need to tune to channel 55. Because UHF channel 55 is were they are receiving the Digital Virtual channel 8-1. The Virtual Channel information is embedded within the data received is the Virtual Channel ID. This was decided because the Customer will know that the HDTV channel they are watching will be a known channel in their area. This will help them to recognize the channel of origin. Below is an excellent web site to visit. This can be a tool that will help you KNOW what the actual channel is when you are going to randomly select them by remote control number keys. You can just select it without a need to run auto programming (on most units ~ with exception of the WXW prior to software upgrade). http://www.transmitter.com DTV Channel Allocation for the whole USA… SOFTWARE UPGRADE PROCEDURE QUICK STEPS. 1. 2. 3. 4. 5. 6. 7. Insert the MM Card software upgrade card into the MM Card slot in the read of the set. Be sure to push in until a click is heard. Note. Label on the card is to the left. Turn the Set On. Press Menu and Select Setup. Thumbstick down to the 2nd page of the Setup Menu and Select Upgrades. Thumbstick down and Select Upgrade Now. After completion, Power off the set, Remove the MM Card, wait 60 seconds. To verify the upgrade took place, repeat steps 2 through 4 and check the version. NEW: The Software can be downloaded from our web site. www.hitachiserviceusa.com (User Name and Password required). Go to the Training section and click on “Software Version and Download Page” link. PAGE 10-07 DP-6X CONVERGENCE TROUBLE SHOOTING Page 1 of 2 1. Convergence can not be corrected (How to Trouble Shoot) Before begining, resolder all connections on the Convergence Output STKs CONVERGENCE CAN NOT BE CORRECTED What Color has shif ted? All Colors Green Blue Red *1 denotes see Figure 1 on next page. DCU OUT CHECK PDCU pin 2 (RH)....(*1) PDCU pin 4 (RV)....(*2) *2 denotes see Figure 2 on next page. DCU OUT CHECK PDCU pin 6 (GH)....(*1) PDCU pin 8 (GV)....(*2) No Good No Good OK OK GREEN Which has shifted? VERTICAL line or HORIZONTAL Line? Which has shifted? VERTICAL line or HORIZONTAL Line? HORIZONTAL Line HORIZONTAL Line VERTICAL Line CHECK or CHANGE RK34 & RK35 (GV) IK02 (Conv Amp) VERTICAL Line CHECK or CHANGE RK26 & RK27 (BV) IK02 (Conv Amp) VERTICAL Line 4.7 Ohm 1 Watt p/n AT03206S 5.6 Ohm 1 Watt p/n AT03208S 4.7 Ohm 1 Watt p/n AT03206S Repair DCU Circuit BLUE Which has shifted? VERTICAL line or HORIZONTAL Line? HORIZONTAL Line CHECK or CHANGE RK18 & RK19 (RV) IK01 (Conv Amp) DCU OUT CHECK PDCU pin 10 (BH)....(*1) PDCU pin 12 (BV)....(*2) No Good OK RED A CHECK or CHANGE RK14 & RK15 (RH) CHANGE IK01 (Conv Amp) CHECK or CHANGE RK30 & RK31 (GH) CHANGE IK01 (Conv Amp) CHECK or CHANGE RK22 & RK23 (BH) CHANGE IK02 (Conv Amp) 8.2 Ohm 1 Watt p/n AT03213S 8.2 Ohm 1 Watt p/n AT03213S 6.8 Ohm 1 Watt p/n AT03211S Convergence Output STKs IK01 & IK02 p/n CZ01251 STK394- 710 PAGE 10-08 DP-6X CONVERGENCE TROUBLE SHOOTING Page 2 of 2 A *1 Indicates see Figure 1 below CHECK DCU input (*1) Is Voltage at PDCU pin 40 (5V)? PDCU pin 44 (-5V?) +5V Check IC01 SW+5.6V Input pin 8 IC01 +5V Output pin 1 -5V Check QC16 SW-24V Line Emi tter QC16 -5V Collector NG OK *2 Indicates see Figure 2 below CHECK DCU input (*2) PDCU pin 36 (V BLK).. (*3) PDCU pin 32 (H BLK).. (*4) NG CHECK DEFLECTION CIRCUIT Vertical Blanking V. Blk. (I601 pin 11) Pin 7 PDT2 Horizontal Blanking H. Blk (Q706) Emi tter Pin 4 PDT2 *3 Indicates see Figure 3 below *4 Indicates see Figure 4 below OK (3) PDCU pin 36 (V. BLK) CHECK RK14, 15, 18, 19, 2 2, 23 26, 27, 30, 31, 3 4, 35 CY Amp (IK01, IK02) ALSO CHECK Conv. Mute PDCU pin 1. (Normal H i). IK03 for leak or sh ort. Convergence Mute (Reset) DC29 for leak. QC17 for leak or activa tion. Vpp = 4~5 (V) 16 ~ 17 (ms) (1) PDCU Connector Pin 2 (RH) Pin 6 (GH) Pin 10 (BH) GND (2) PDCU Connector Pin 4 (RV) Pin 8 (GV) Pin 12 (BV) (4) PDCU pin 32 (H. BLK) Vpp = 4~5 (V) 30 (us) 30 (us) 16 ~ 17 (ms) Vpp = 2~5 (V) PAGE 10-09 DP-6X THINGS YOUR SHOULD KNOW (7) The Model and Serial Number is on the Front Right Hand Side for easy access. Figure 1 Figure 1 shows the location of the Model and Serial Number tag. This can be seen without moving the set or requiring any disassembly. Figure 2 shows the a Close Up of the Model and Serial Number tag. Figure 2 Figure 3 shows the actual location of the Model and Serial Number tag. This can be seen without moving the set or requiring any disassembly. This picture is actually of an LCD Projection set, but the location is the same for all classes of PTVs. Figure 3 (08) Using HDMI and a Cable Box, some HD signals give an Error Message: ERROR NOTICE: HDMI Interface with some Cable Boxes. When selecting some HD Channels, the notice reads as follows: "The HD content protection on your display has been compromised. Please use the Y Pb/Pr Outputs for your HD connection". Or "Monitor Does not support HDCP" or “Lower Resolution” or “Snow”. The warning will show up at power on and will remain there if left alone. EXPLANATION: "This is not a problem with the Projection Television". With the addition of Digital transmission, many avenues of private digital data and usage privileges are being incorporated into the transmission stream. During this age of HD infancy, these codes are being manipulated and can generate this situation. HDCP is the issue here. Please contact your local cable operator for additional information. A temporary work-around is to disconnect and reconnect the HDMI cable between your cable box and TV. Your patience is appreciated until this issue can be resolved by the cable operator. NOTE: Both the TV and the Set Top Box Must Be ON. PAGE 10-10 DP-6X THINGS YOUR SHOULD KNOW (09) Using the Cutoff Adjustment to check for a bad CRT. • Symptoms: (Also See Item 11 below for Spark Gap problems) • Color Temperature changes. • Picture Flickers. • Brightness fluctuations. Did you know that you can check for a defective CRT (internal grid shortage) by looking closely at the single horizontal line while in the Cut-Off adjustment mode? In this mode, the Vertical is collapsed so the Service Technician can adjust the Cut-Off level of each CRT. (Note: This determines the Life Span of the CRT. If this adjustment is too bright, the Tube Life is shortened). PROCEDURE: • Enter the I2C Service Menu and Select the SERVICE adjustment by using the cursor down and then press cursor right. Vertical will collapse. • While looking at the single colored line, look at any color to see if it's blinking or flickering. If it is, the CRT needs to be replaced. The Room should almost dark to make the line easier to see. You may have to turn the Screens up slightly to see the line more clearly. Remember, the line should be just barely visible. • If a Color can't be turned completely off, this too indicates a defective CRT and can quickly identify when CRT is bad. • Replace the defective CRT. (Note: This isn't related to the Digital Convergence Grid. The Cursor (adjustment point) will blink in this mode and this is normal). (10) Picture Dark, abnormal, Changing Color Temperature. • Clean the Spark Gaps on each CRT PWB. Remove the Cap, clean the contacts with thin fine sand paper, blow out, reseal. (11) POD (Cable Card) Possible Problems 1: Make sure software is current version: (See the Web Site to confirm current version). 2: If after inserting the Cable Card, the unit IDENTIFIES the Cable Card and goes on to provide a notice as to how to start Service or it just starts receiving the approved programming. If all this goes on, it is obvious that card and the host (receiver) have established what is commonly known as the "Handshake" and all is Normal. If for any reason, this does not happen, and the "Handshake" does not occur, there still may not be a problem. Try leaving the Card inserted for a longer period of time. If this seems to take too long, insert the card just before retiring for the evening. Leave the Card inserted over night. Set does not have to be on. There are many reasons that the Card may take an extremely long time to initiate the handshake function. This could be due to traffic, server issues, etc... Please make sure to follow these steps first before considering the Cable Card as being defective. If after an overnight attempt has failed to initialize the Card, then most likely there is a problem with the Cable Card itself. Please get a different or a new Cable Card to try again. Continued on next page PAGE 10-11 DP-6X THINGS YOUR SHOULD KNOW (12) Lip Sync Issues: This is a news letter written by an engineer at KFMB in San Diego. It explains the cause and things that may help when a problem of "Lip Sync" is encountered. KFMB Digital TV Newsletter Number 19 . January 19, 2003 READ MY LIPS The HDTV forums have been abuzz about poor lip sync on several local HDTV channels. This is potentially a real nightmare for digital broadcasters, and I'll take a little time here to explain why, and what you can do about it. By definition, lip synchronization is another way of saying that the audio portion of a TV program matches in timing the video portion. In the good old days, this simply meant that the lower loop of film on the projector was not of the right size because your projector slipped a few sprockets and you would just reach over and adjust it during the next break. In about 1980, video synchronizers started showing up at TV stations that allowed us to use special effects with sources that were of a completely different timing, like remote news vehicles and networks from outside the station. Without those synchronizers, fading or special effects would just look like a mess on-air. However, they introduced a problem: they delayed video without delaying audio. This wasn't much of a problem for a single frame of delay because few people can detect it. But add a couple of frames for network processing and complex effects, and suddenly you have visible lip sync problems. Audio delay units were introduced, but few stations used them. KFMB used a monaural one until we went stereo in 1990. When the Audio Engineering Society (AES) defined digital audio in the early 1990s, they seemingly forgot to deal with synchronizing audio with video. There are no clues built into the AES audio stream for where a given audio frame is in time with respect to an accompanying video stream. There's no chance of having automatic lip sync. Fast-Forward to 1999 We open a new all-digital master control and disk drive servers to replace tape-delivered programming and commercials. Some sources have ways to adjust audio timing, and some don't. Now we have a digital transmitter and an analog one. When producing the news, we find that the more complex a video effect is, the more video delay we have, with real lip sync issues when carrying the video from several remote sites on the screen at the same time. We build a box that tells our new audio synchronizer/converter to delay a given amount depending on the combination of sources used. The box works well. In 2001, we open a new all-digital production control that fixes the variable delay problem. Life is good, but intermittent problems with lip sync still show up. Software bugs and corrupt data occasionally plague the station's digital encoder. Remote satellite sources still have lip sync issues at their source left for us to solve on the fly. In late 2002, our digital stream is added to the local cable companies. Since there's zero transmission loss, they use our on-air signal for a redistribution medium. However, they have to re-encode the signal in order to get the correct channel information, program guide, and 256-QAM modulation scheme, thereby introducing another potential source of lip sync problems. As digital viewers, you too can introduce your own problems: You are at the mercy of electronics designers as to how much audio or video delay they introduce. If you use analog cables to transfer audio between your receiver or set-top box (STB) and your audio amplifier/processor, you have a digital-to-analog converter at the STB and an analog-to-digital converter at the processor/amplifier, each introducing audio delay, whether a little or a lot. If you have acoustic effects chosen on your amplifier, you may introduce more delay. If your receiver/STB gets corrupt data or becomes otherwise confused, it can introduce delay by mistake. What's a Mother to Do? First of all, make sure you have a problem. We evaluate for lip sync watching for speech in which the on-camera person moves his or his lips to annunciate plosive "B" and "P" sounds. Be careful that you're not seeing it on a poorly dubbed single commercial or program. We're going to ask you to be forgiving when there may be a temporary problem with a hastily organized satellite remote news story--bad things happen in the field sometimes. If you encounter disturbing lip sync problems, answer a few questions before you ask for help: Does the problem exist on all over-the-air, cable, and satellite channels? If so, you surely have a local problem. Try resetting your receiver/STB and processor/amp by unplugging for a few seconds and then plugging back in. What is the source? Does the problem exist with all commercials, programs, and live news? Note this to help the person you complain to. When did the problem begin? Have you checked the enthusiast forums to see if others have the same problems? A nice website for San Diegans is http://hdtv.forsandiego.com. Have you reset your receiver and lip sync is still an issue on all channels? You should contact the cable company in order to determine whether the problem is with you, them, or their sources. Does the problem exist on only one channel? Call the provider (cable or DBS) or the source channel. Each will have to analyze the source and determine the source of the problem. At most stations, they have access to view their own sources, line output signal, analog air signal, digital air signal, and Time Warner cable analog and digital signals. We count on Cox Cable to evaluate our signals on their system. PAGE 10-12 DP-6X THINGS YOUR SHOULD KNOW (Continued from previous page) (13) What equipment can I use to generate an HD signal? • Please see our web site at the following address; • http://www.hitachiserviceusa.com/Service/Seminars/DP4X-Web/09-things-toknow/16_HD_Gen.htm (14) Some VGA to Component Adaptors can cause No Picture or Sync Problems. • Some Set Top Boxes do not have Component Outputs. They have VGA outputs. In this case, a VGA to Component adaptor will be needed. Some of these adaptors can cause a problem if they do not have Tri-Level sync outputs. • They may cause other problems as well, like Horizontal Shift or unstable pictures. • Please remove the VGA to Component adaptor and test the Component inputs by using a Component generator directly into the Component inputs to verify. • Please see the VGA to Component adaptor recommendations on the HD Generator suggestion page. Note: If a Component Source isn't readily available, use Composite Video input into the "Y" jack. Insert a dummy RCA jack into the "Pr" plug to force the set into the Component Mode. The signal will be black and white, but the picture content (other than color problems) can be checked. (15) POD (CableCARD) no longer works after Memory Initialize or some parts replaced. • The CableCARD will no longer work after replacing the Digital Module. • The CableCARD will no longer work after replacing the Signal PWB with the Digital Module. When the Customer first receives their Cable Card, they must insert the card and have it authenticated by the Cable company. Then the customer must call the Cable company with the Host ID information. After this, the Cable company then sends out data that provides the Cable card with channel mapping and the allowable channels for this particular customer to view. • If a Factory Reset is preformed, the Cable Card is no longer authenticated and the customer must repeat the process of re-authentication. • If a Memory Initialization is preformed, the Cable Card is no longer authenticated and the customer must repeat the process of re-authentication. • If the Digital Module is replaced, the Cable Card is no longer authenticated and the customer must repeat the process of re-authentication. • If the Signal PWB with the Digital Module is replaced, the Cable Card is no longer authenticated and the customer must repeat the process of re-authentication. (16) POD (Cable Card) Problems, Digital Tuner Problems. POSSIBLE CORRECTION: • Be sure to check for the Current Software Version. • Check the Web Site for Current Software Version number. (17) What is the Size of the Allen Wrench for removing the Split Cabinet Screws? • 4 mm (18) HDMI Doesn't Work Please clean the HDMI input contacts with Isopropyl Alcohol using a stiff thin brush. • Symptom -Using HDMI connection, black picture with NO SYNC OSD. • Sometimes contaminants can cause poor connections on the DVI and/or HDMI inputs. Cleaning these contacts will eliminate the problem. PAGE 10-13 DP-6X THINGS YOUR SHOULD KNOW (19) Download the Latest Software Upgrade Software The Software can be downloaded from our web site. www.hitachiserviceusa.com (User Name and Password required). Go to the Training section and click on “Software Version and Download Page” link. (20) Losing Channels on 1/2 of the PinP Window (Analog Half) • Most often noticed when using a Cable Card. If the Cable service provider decides that they are going to all Digital Channels, then our TVs, will lose ALL or most channels on the Analog Tuner side. The Channels they lose will be the ones that are Digital (QAM). Only the Analog channels will remain, if any. There is nothing wrong with your TV set. Please note that this set is using One Analog and One Digital tuner. Every time we use PinP and the 2nd tuner is selected as the Sub picture, the Sub picture can ONLY BE ANALOG (NTSC). DETAILS: As Cable Companies modernize, they are approaching a Digital solution. This improves picture performance even on the lower resolution signals and helps to minimize transmission loses. It also improves band performance. These Cable companies provide a "Set Top Box" (Cable Box) to receive and decode these digital broadcast. So as it stands right now, the Cable companies can be broadcasting Analog (NTSC), Digital NTSC (QAM) and SD/HD Digital (QAM). Note: QAM (Quadrature Amplitude Modulation). If the Customer is using a Cable Box, then they do not notice a problem, since the Cable Box only outputs one channel at a time.. If the Customer decides to hook the Cable directly into the set and bypass using a Cable Box, then issues arise that may appear to be a problem. Sets which include an HD Tuner will receive ATSC (over the air SD/HD digital broadcast) and QAM (Cable digital broadcast). The Analog (NTSC) tuner will only receive NTSC analog broadcast signals. Most Customer's who decide to hook Cable directly into the set, will in turn most often decide on using a CableCard application. This will allow the set to receive the Channel Mapping (what channels are broadcast on what frequencies) from the Cable company so their channel selection will match the Channel listings provided by the Cable company. So when they now try to activate PinP and have the Sub picture selected on the Analog tuner, there will be only a few channels available, if any. These will be the NTSC channels only. Many Servicers are trying to "fix" these problems....After replacing many parts, they end up exactly at the same place. PIP with CableCARD will not be getting most channels on the one side using the Analog Tuner. There is nothing wrong with your TV set. PAGE 10-14 PTV 06-01b June 2006 PTV Hitachi America, Ltd., Home Electronics Division National Service MODEL: Page 1 of 1 51F710A, 57F710A, 65F710A (DP55) 51F710E, 57F710E, (DP57) 51F710G, 57F710G, (DP55) 51F59, 57F59, 65F59, (DP65) 51F59A, 57F59A, 65F59A (DP65G) 51F59J, 57F59J, 65F59J, (DP65G) SUBJECT: PRT SPOT PREVENTION Details: If one or more PRTs have a spot mark around the center, check the +220V filter capacitor, CP50 (DP-5x chassis) or C965 (DP-6x chassis); if value is 100ȝf/250V, replace with 220ȝf/250V (p# AL00065S). See images below for physical location; Figure 1 for DP-5x chassis, Figure 2 for DP-6x chassis. CP50 Figure 1 - DP5x Chassis C965 Figure 2 - DP6x Chassis PAGE 10-15 PTV 06-02 June 2006 PTV Hitachi America, Ltd., Home Electronics Division National Service MODEL: Page 1 of 1 51F59, 57F59, 65F59 (DP65) SUBJECT: Horizontal Noise Lines Details: If a symptom such as shown in Figure 1 appears, (more visible in brighter scenes), check the Deflection PWB to see if location K025 has been replaced by a coil. If there is still a jumper in place, replace it with a 47 Ph coil, p/n BH01889R. See Figures 2 and 3 for location. Figure 1 - Horizontal noise in upper corners Figure 2 - Solder side Figure 3 - Component side PAGE 10-17