Hitachi 32_42PD7800 free download

File name 32PD7800_42PD7800.pdf

YK No.013-1E 32PD7800 42PD7800 (PW2) SERVICE MANUAL Caution Be sure to read this manual before servicing. To assure safety from fire, electric shock, injury, harmful radiation and materials, various measures are provided in this HITACHI Plasma display. Be sure to read cautionary items described in the manual to maintain safety before servicing. Service Warning 1. Since Panel Module and front Filter are made of glass, handling the broken Module and Filter shall be taken care sufficiently in order not to be injured. 2. Replacing work shall be started after the Panel Module and the AC/DC Power supply become sufficiently 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 display 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 flexible cables connecting Panel glasses to drive circuit PWBs are very weak, so shall be taken care sufficiently not to break. If you break Chip Tube, the Panel doesn't display anything forever. Contents 1. 2. 3. 4. 5. 6. 7. 8. Features --------------------------------------------------3 Specifications --------------------------------------------4 Service point ---------------------------------------------5 Component names -------------------------------------6 New adoption technology-----------------------------7 Adjustment --------------------------------------------- 11 Troubleshooting --------------------------------------- 29 Self-diagnosis function ------------------------------ 39 9. Basic circuit diagram--------------------------------- 41 10.Printed wiring board diagram ---------------------- 54 11. Block diagram ----------------------------------------- 61 12.Connection diagram --------------------------------- 62 13.Wiring diagram ---------------------------------------- 63 14.Disassembly diagram-------------------------------- 67 15.Replacement parts list------------------------------- 73 SPECIFICATIONS AND PARTS ARE SUBJECT TO CHANGE FOR IMPROVEMENT. Plasma Display December 2004 Digital Media Division 32PD7800/42PD7800 (PW2) Block diagram 10 32PD7800/42PD7800 (PW2) 6. Adjustment How to get to Adjustment mode Using the front control buttons with the set turned off (standby) can activate it. Press the SUB-POWER( ) button, INPUT SELECT( ) button and button at the same time, and hold for more than 5 seconds. The set turns on in adjustment mode with OSD. Changing data and Selecting Adjustment code When the set is in adjustment mode, the cursor , , , and OK buttons of the remote control or front panel may be used as the adjustment keys. , buttons are used for selecting adjustment code. , buttons are used for changing data values. OK button is used for confirming the data.