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LCD 782LS service manual POWER BOARD Component Side 5. POWER BOARD Solder Side
Models:
LCD 782LS
1
18
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Troubleshooting
Parts list
Timing Chart
Pin Configuration
Disassembly
Analog Signal
AUTO adjustment function
Before Servicing The Unit Read The Safety Precautions In This Manual
Safety
Power Part
Page 18
Image 18
4. POWER BOARD (Component Side)
5. POWER BOARD (Solder Side)
- 18 -
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Page 18
Image 18
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Contents
CHASSIS NO. CL-29 FACTORY MODEL LB782G
Websitehttp//biz.LGservice.com
BEFORE SERVICING THE UNIT READ THE SAFETY PRECAUTIONS IN THIS MANUAL
ID LABEL MODEL No
BLOCK DIAGRAM AND DESCRIPTION
CONTENTS
SPECIFICATIONS
TROUBLESHOOTING GUIDE
PRECAUTION
WARNING FOR THE SAFETY-RELATED COMPONENT
TAKE CARE DURING HANDLING THE LCD MODULE WITH BACKLIGHT UNIT
TIMING CHART
VIDEO SYNC
REAR VIEW
OPERATING INSTRUCTIONS
FRONT VIEW
Front Control Panel
J706
WIRING DIAGRAM
J801
J710
DISASSEMBLY
BACK COVER REMOVAL
Scaling
BLOCK DIAGRAM
+ PLL
Module Power LVDS Tx
3. Power Part
DESCRIPTION OF BLOCK DIAGRAM
1. Input signal part
2. Pre-amp/ ADC / PLL / Video Controller
PRIMARY
BLOCK DIAGRAM POWER BOARD
6. Signal collection
SECONDA RY
1. Adjustment Start
ADJUSTMENT
Adjustment for White Balance
Adjustment for EDID
TROUBLESHOOTING GUIDE
1. NO POWER
2. NO RASTER
L204
3. NO CLOCK CLOCK GENERATOR
L201
4. TROUBLE IN DPM
CHECK
R233, R234?
2. CONTROL BOARD Component Side 3. CONTROL BOARD Solder Side
PRINTED CIRCUIT BOARD
1. MAIN BOARD Component Side
P/N 6870T487A11
4. POWER BOARD Component Side 5. POWER BOARD Solder Side
EXPLODED VIEW
EXPLODED VIEW PARTS LIST
Description
REPLACEMENT PARTS LIST
MAIN BOARD
CAPACITORS
TRANSISTOR
DIODEs
COILs & COREs
RESISTORs
POWER BOARD
OTHERs
CONTROL BOARD
BLOCK DIAGRAM
PIN CONFIGURATION
PIN CONFIGURATION PIN FUNCTION
CAT24WC08J-TE13 8P
SCHEMATIC DIAGRAM
1. GM5020
2. LVDS
3. MICOM
4. DC/DC
5. CONNECTOR
6. CONTROL
7. POWER
P/NO 3828TSL074E
Printed in Korea