Samsung GT-C3530 - Key Back Light

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Level
3
Repair
8-39
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8-3-17.
Key Back Light
Main Key LED does not work
Yes
No
Replace the UCP200 using
a
Heatgun
Check the Key LDO enable is
high.
(
TP
:
R314
=1.8
V)
Yes
#1 :
Replace the LED
(
be possible that the sample has the problem)
#2 :
Change PBA
Key LED does not work?
(
look over the LED light)
END
Yes
No
Check the Main key voltage
is high.
(
TP
:
L310
=3.3
V)
Yes
Replace the U315 using
a
Heatgun
No