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Product System (PS)
C4-425 Trouble Shooting Guide
Subject:
9J.M7375.001
Project Code:
V37C
Model Name:
main board
LED OK?
Yes
OSD OK?
Yes
HDMI OK?
Yes
Component OK?
Yes
PC OK?
Yes
Audio OK?
Yes
Side AV OK?
,
Yes
DTV OK?
Yes
Form No: BQY0-0B-003-32(031205)
Board trouble shooting flowchart
No
1.
Check L109, L111, L112, Q35, Q36
2.
Check power +5VS
3.
Check U2 and LED1 of Light Sensor board
No
1.
Check +5VS, +2.5VS, +3.3VS, +1.8VS
2.
Check LCD_ON and PWR_ON
No
Check L49, L50, L52, U51, U52
No
1. Check U61, +3.3VA, 1V8_ADC
2. Check L67, J19
No
1. Check U59, U73, U57
2. Check J13
No
1. Check U66, +15V, D8, J19
2. Check J16, J17
No
Check J23
No
Check J22
9J.M7375.BAT
Part No.:
9J.M7375.BAT-C4-425-00
Doc. No.
1
NA
Component Part. No.:
Marketing Description :
No
1. Check U73
2. Check J12 connection
No
1. Check J5, J6 of video board
2. Check J1 of video board
No
1. Check U4, U8, U13 of video board
2. Check J1 of video board
No
Check J2 of Side AV board
Rev.:
0
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