For Inverter Board - HP R15AAC Service Manual

2. For Inverter Circuit on Power Board
Check C102 pin is around 5V.
On/Off pin of P802 is over 2V.
Brightness pin is between 0V and 3.5V/
Check pin6 of I101 is 5V
Check P101, P102, D103 are connected right
Check pin 7 of I101 is over 3.1V
Check pin 2 of I101 is triangle pulse
Check pin 1 of I101, there is soft start edge up to 4V and pin 4, 5. there
is some pulse outputs
Check pin 6 of I101, there is around 1.25V from output detection
Check SW MCS (Q104) work right
Check trabsfirner (T101) working it and repair it
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OK NG
OK NG
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OK
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OK
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OK
R15AAC/AAU (vs15)
It is not inverter problem
Check R105, C102 and repair them. Check printed wire.
Check CCFL and repair them. Lock P101, P102 tightly
Check Q106, Q107 and repair them
Check C104, C105, I101 and repair them
Repair I101
Check D116, D117, R111 and repair them
Repair them