Acer DV650C Service Manual page 49

Keypad LED fail
No OSD image
No PC input
No DVI input
No HDMI input
No S-Video input
No CVBS1 input
No CVBS2 input
1. Check Q9、Q10、R162、R163、R164
2. Check P3V3
3. Check J11 soldering
1. Check P5V, P2V5, P3V3, P1V8
2. Check J25 PWRBD_ON and
LCD_BRT_CTRL Signal
3. Check P5V, P2V5, P3V3, P1V8
4. Check J25 PWRBD_ON and
LCD_BRT_CTRL Signal
1. Check L55, L56, L57, R22, R32, R38
2. Check C32, C36, C37, C40
1. Check J10 pin14 and R412
2. Check U18, U20, R124 ~ R134
1. Check J8 soldering
2. Check U8 ~ U10, U20 , R124 ~ R134
1. Check J31 soldering
2. Check L2, L3, R1, R3
1. Check J31 soldering
2. Check L1, R2, R483
1. Check J30 soldering
2. Check L4, R9, R490
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