FUNAI WD6D-M100 Service Manual page 29

FLOW CHART NO.19
P-ON+1.8V is not outputted.
Is 3V voltage supplied to Pin(1) of IC1103?
Is the "H" pulse (approximately 1.3V) inputted to
Pin(4) of IC1103?
Replace IC1103.
FLOW CHART NO.20
USB+5V is not outputted.
Is resistance value of both end to F6001 infinity?
Is 5V voltage supplied to Pin(4) of CN6001?
When IC3607 is used:
Is 5V voltage outputted to Pin(8) of IC3607?
When IC3608 is used:
Is 5V voltage outputted to Pin(5) of IC3608?
Is 0V voltage outputted to Pin(1) of CN3605?
When IC3607 is used:
Is 3.3V voltage supplied to Pin(4) of IC3607?
When IC3608 is used:
Is 3.3V voltage supplied to Pin(3) of IC3608?
Check IC3607(IC3608) and their periphery, and
service it if defective.
FLOW CHART NO.21
The fluorescent display tube does not light up.
Is 5V voltage supplied to Pin(13,43) of IC612?
Is approximately -24V to -28V voltage supplied to
Pin(30) of IC612?
Is there approximately 500kHz oscillation to
Pin(5) of IC612?
Are the filament voltage applied between Pin(1)
and Pin(24) of the fluorescent display tube?
Also are negative voltage applied between these pins
and GND?
Replace fluorescent display tube.
Yes
Yes
No
No
No
No
No
Yes
Yes
Yes
Yes
No
Check D1033 and their periphery, and service it if
defective.
No
Check Q1109, REG-CONT line, and service it if
defective.
Yes
Replace F6001.
Yes
Check CN6002 and their periphery, and service it if
defective.
Check CN3604 and their periphery, and service it if
Yes
defective.
Yes
Check Q1119 and their periphery, and service it if
defective.
Yes Replace DVD MECHANISM & DVD MAIN
CBA ASSEMBLY.
No
Check the ECO+5V line and service it if defective.
No
Check the -FL line and service it if defective.
No
Check R618, IC612 and their periphery, and service it
if defective.
No
Check the power circuit, D1103, D1108, R1106, C1110
and their periphery, and service it if defective.
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