LCD TELEVISION
Customer#: NS-LCD37 Factory#:LC-37HA37
CONTENTS Safety precautions………………………………………………………………………..… 1 Alignment instructions …………………………….…….………………………………… 3 Method of software upgrading……………….…….……………………………………….……. 8 Working principle analysis of the unit……………………………….………….………….10 Block diagram…………………………………..………………………………….…………11 IC block diagram………………………………………………………………………..……12 Wiring diagram ……………………………………………………………………………. 19 Identification criteria for the bright spot and dark spot .
LCD TV Service Manual
LCD TELEVISION
Customer#: NS-LCD37 Factory#:LC-37HA37
CONTENTS Safety precautions………………………………………………………………………..… 1 Alignment instructions …………………………….…….………………………………… 3 Method of software upgrading……………….…….……………………………………….……. 8 Working principle analysis of the unit……………………………….………….………….10 Block diagram…………………………………..………………………………….…………11 IC block diagram………………………………………………………………………..……12 Wiring diagram ……………………………………………………………………………. 19 Identification criteria for the bright spot and dark spot of the LCD screen………….. 20 Troubleshooting guide ………………………………………………………………..…… 21 Schematic diagram………………………………………………………………………… 26 APPENDIX-A: Assembly list APPENDIX-B: Exploded View
Attention: This service manual is only for service personnel to take reference with. Before
servicing please read the following points carefully.
Safety precautions
1. Instructions
Be sure to switch off the power supply before replacing or welding any components or inserting/plugging in connection wire Anti static measures to be taken (throughout the entire production process!): a) Do not touch here and there by hand at will; b) Be sure to use anti static electric iron; c) It’s a must for the welder to wear anti static gloves. Please refer to the detailed list before replacing components that have special safety requirements. Do not change the specs and type at will.
2. Points for attention in servicing of LCD
2.1 Screens are different from one model to another and therefore not interchangeable. Be sure .