Key Backlight - LG S5000 Service Manual
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Also See for S5000:
- User manual (178 pages) ,
- User manual (79 pages) ,
- User manual (160 pages)
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4. TROUBLE SHOOTING
CIRCUIT
C753
C754
C755
C756
C757
C760
C758
C759
1u
1u
1u
1u
1u
1u
1u
1u
KEY_BACKLIGHT
Checking Flow
KEY BACKLIGHT
VBAT
R728
12K
C725
27p
START
Is the level at R729
High?
YES
Are all LEDs
Working?
YES
Backlight will work properly.
VBAT
IMX9T110
Q700
C724
27p
NO
Check U101
NO
Check the soldering
each R and LED
NO
Replace or resoldering
component
- 84 -
C761
C762
C763
C764
C765
C766
1u
1u
1u
1u
1u
1u
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