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8-3- 10 . Key Back Light
LED20 1 = "H>3.3V" ?
(look over using an
Oscillocope)
Key LED does not work?
(look over the LED light)
R31 1 1 7 7
R R R R R R R R 3 3 3 3 3 3 3 3
R317
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Yes
Yes
END
C31 1
C C C C C C C C 3 3 3 3 3 3 3 3
C316
16 6 6 6 6 6 6 6 6
6
C31 1 1 5 5 5 5 5 5 5 5
C C C C C C C C 3 3 3 3 3 3 3 3
C315
C319
C31 1
C C C C C C C C 3 3 3 3 3 3 3 3
19 9 9 9 9 9 9 9 9
9
C C C C C C
C320
C32 2 2 2 2 2 2 2 0 0
C C 3 3 3 3 3 3 3 3
U U U U U 3 3 3 3 3 3 3 3 3 0 0 0 0
U302
0
0 0 0 0 0 2 2 2 2 2 2 2 2
R21 1 1 3 3 3 3 3 3 3 3 3
R2
R213
R R R R R R R R 2 2 2 2 2 2
S S S S S S S S S S S C C C C C C C 1 1 1 0 0 0 0 0
No
(must be coming out the signal "H")
#1 : Replace the LED
No
(be possible that the sample has the problem)
C C C C C C C 1 1 1 2 2 2 2 2 2 2 2 6 6 6 6 6 6 6 6 6
C126
0 0 0 0 0 0 0
0
0
0 0 0 0 0 0 0 0 0 0 0 0
0
8-21
Level 3 Repair
Resolder R2 13
#2 : Change PBA
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