BenQ VL3735 Service Manual page 101

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3. Video board trouble shooting guide
S-video is OK?
YES
Composite is
OK?
YES
SCART is OK?
YES
Audio is
OK?
YES
TV OK?
1. Check L42, L13.
No
2. Check R100, C75, C27,C28,
3. Check U4,R90,R95,R93,Q7,R97
No
1. Check L41,C25,C26,L12
2. Check U4, R107,R92,C73.
3. Check R101,R91,Q10,R102
1. Check L9,C19,C221,L5,L6,L7
No
C15,C16,C17,C218,C219,C220.
2. Check U4,R127,R132,R91,Q10,R98
No
1. Check U5, MSP4441K.
2. Check R168,R169,R171,R172
3. Check C118,C119,C120,C121
1. Check Tuner pin 14.
2. Check R88,C69
3.
Check R91,R101,Q9,R98
101
Check L21 is +9V?
Check U3 pin 3 (5V)?

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