Samsung GT-E2370 - Key Back Light

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Level
3
Repair
8-22
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8-3-9.
Key Back Light
Main Key LED does not work
Yes
No
Replace UCP200 using
a
Heatgun
(
must be coming out the signal
"
H")
Check the UCP200 pin
B10
="
H=2.8V
"?
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
Yes
No
Replace U307 using
a
Heatgun
(
must be coming out the signal
"
H")
Check the output signal of
U307
(
TP
:1
pin)