SPECIFICATIONS AND PARTS ARE SUBJECT TO CHANGE FOR IMPROVEMENT.
Plasma Display
November 2005
Digital Media Division
YK
No.022E
SERVICE MANUAL
55PD8800TA(PW3)
37LD8800TA(PW3L)
Be sure to read this manual before servicing. To assure safety from fi re, electric shock, injury, harmful radia-
tion and materials, various measures are provided in this HITACHI display.
Be sure to read cautionary items described in the manual to maintain safety before servicing.
Caution
1. Features --------------------------------------------------3
2. Specifi cations --------------------------------------------4
3. Service point ---------------------------------------------5
4. Component names -------------------------------------6
5. New adoption technology ----------------------------- 7
6. Adjustment --------------------------------------------- 11
7. Troubleshooting --------------------------------------- 37
8. Self-diagnosis function ------------------------------ 52
9. Basic circuit diagram
--------------------------------- 54
10. Printed wiring board diagram ---------------------- 82
11. Block diagram ----------------------------------------- 90
12. Connection diagram --------------------------------- 91
13. Wiring diagram ---------------------------------------- 93
14. Disassembly diagram -------------------------------- 97
15. Replacement parts list ----------------------------- 101
Contents
1. Since Panel Module and front Filter are made of glass, handling the broken Module and Filter shall be
taken care suffi ciently in order not to be injured.
2. Replacing work shall be started after the Panel Module and the AC/DC Power supply become suffi ciently
cool.
3. Special care shall be taken to the display area in order not to damage its surface.
4. The Panel Module shall not be touched with bare hand to protect its surface from stains.
5. It is recommended to use clean soft gloves during the replacing work in order to protect not only the dis-
play area of the Panel Module but also a serviceman himself.
6. The Chip Tube of Panel Module (located upper left of the back and surrounded by frame) and fl exible
cables connecting Panel glasses to drive circuit PWBs are very weak, so shall be taken care suffi ciently
not to break. If you break Chip Tube, the Panel doesn’t display anything forever.
Service Warning
LCD
PDP
Summary of Contents for 37LD8800TA
Page 56: ...56 55PD8800 37LD8800 MEMO ...
Page 57: ...1 2 3 4 5 6 1 2 3 4 5 6 A B C D E F G 57 55PD8800 37LD8800 PWB assembly MAIN 1 PW3 ...
Page 58: ...1 2 3 4 5 6 1 2 3 4 5 6 A B C D E F G 58 55PD8800 37LD8800 PWB assembly MAIN 2 PW3 ...
Page 59: ...1 2 3 4 5 6 1 2 3 4 5 6 A B C D E F G 59 55PD8800 37LD8800 PWB assembly MAIN 3 PW3 ...
Page 60: ...1 2 3 4 5 6 1 2 3 4 5 6 A B C D E F G 60 55PD8800 37LD8800 PWB assembly MAIN 4 PW3 ...
Page 61: ...1 2 3 4 5 6 1 2 3 4 5 6 A B C D E F G 61 55PD8800 37LD8800 PWB assembly MAIN 5 PW3 ...
Page 62: ...1 2 3 4 5 6 1 2 3 4 5 6 A B C D E F G 62 55PD8800 37LD8800 PWB assembly LED PDP PW3 ...
Page 63: ...1 2 3 4 5 6 1 2 3 4 5 6 A B C D E F G 63 55PD8800 37LD8800 PWB assembly LED LCD PW3 ...
Page 64: ...1 2 3 4 5 6 1 2 3 4 5 6 A B C D E F G 64 55PD8800 37LD8800 PWB assembly SWIEVEL PW3 ...
Page 65: ...1 2 3 4 5 6 1 2 3 4 5 6 A B C D E F G 65 55PD8800 37LD8800 PWB assembly FILTER PW3 ...
Page 66: ...1 2 3 4 5 6 1 2 3 4 5 6 A B C D E F G 66 55PD8800 37LD8800 PWB assembly Sub POWER PW3 ...
Page 67: ...1 2 3 4 5 6 1 2 3 4 5 6 A B C D E F G 67 55PD8800 37LD8800 PWB assembly TERM PW3 ...
Page 68: ...1 2 3 4 5 6 1 2 3 4 5 6 A B C D E F G 68 55PD8800 37LD8800 PWB assembly CONTROL PW3 ...
Page 69: ...1 2 3 4 5 6 1 2 3 4 5 6 A B C D E F G 69 55PD8800 37LD8800 PWB assembly SENSOR PW3 ...
Page 70: ...1 2 3 4 5 6 1 2 3 4 5 6 A B C D E F G 70 55PD8800 37LD8800 PWB assembly SOUND PW3 ...
Page 71: ...1 2 3 4 5 6 1 2 3 4 5 6 A B C D E F G 71 55PD8800 37LD8800 PWB assembly SW PW3 ...
Page 72: ...1 2 3 4 5 6 1 2 3 4 5 6 A B C D E F G 72 55PD8800 37LD8800 PWB assembly FC 1 PW3 ...
Page 73: ...1 2 3 4 5 6 1 2 3 4 5 6 A B C D E F G 73 55PD8800 37LD8800 PWB assembly FC 2 PW3 ...
Page 74: ...1 2 3 4 5 6 1 2 3 4 5 6 A B C D E F G 74 55PD8800 37LD8800 PWB assembly FC 3 PW3 ...
Page 75: ...1 2 3 4 5 6 1 2 3 4 5 6 A B C D E F G 75 55PD8800 37LD8800 PWB assembly FC 4 PW3 ...
Page 76: ...1 2 3 4 5 6 1 2 3 4 5 6 A B C D E F G 76 55PD8800 37LD8800 PWB assembly FC 5 PW3 ...
Page 77: ...1 2 3 4 5 6 1 2 3 4 5 6 A B C D E F G 77 55PD8800 37LD8800 PWB assembly FC 6 PW3 ...
Page 78: ...1 2 3 4 5 6 1 2 3 4 5 6 A B C D E F G 78 55PD8800 37LD8800 PWB assembly FC 7 PW3 ...
Page 79: ...1 2 3 4 5 6 1 2 3 4 5 6 A B C D E F G 79 55PD8800 37LD8800 PWB assembly FC 8 PW3 ...
Page 80: ...1 2 3 4 5 6 1 2 3 4 5 6 A B C D E F G 80 55PD8800 37LD8800 PWB assembly FC 9 PW3 ...
Page 81: ...1 2 3 4 5 6 1 2 3 4 5 6 A B C D E F G 81 55PD8800 37LD8800 PWB assembly FC 10 PW3 ...
Page 90: ...90 55PD8800 37LD8800 11 Block diagram ...
Page 91: ...91 55PD8800 37LD8800 12 Connection diagram to connection diagram 2 2 Connection diagram 1 2 ...
Page 92: ...92 55PD8800 37LD8800 Connection diagram 2 2 to connection diagram 1 2 ...
Page 128: ...YK No 022E Printed in Japan JE QR66412 55PD8800 37LD8800 Digital Media Division ...