(No.YA711<Rev.002>)1-23
Is approximately +5V voltage supplied to Pin(1) of
IC631?
Ye s
No
Check Q634, D650 and their per
iphery circuit, and
service it if defective.
See FLOW CHART No.5
No
AL+3.3V is not output.
FLOW CHART NO.18
Is approximately +34V voltage supplied to the
collector of Q634?
Ye s
Replace IC631.
Check C636, D636, D637 and their periphery
circuit, and service it if def
ective.
Check Q202, Q203, D204, P-ON-H1 line and their
periphery circuit, and service it if defective.
Replace Q206.
Is appro
ximately -8V v
oltage supplied to the
base of Q206?
Ye s
No
No
LCD-7.1V is not output.
FLOW CHART NO.19
Is appro
ximately -9V voltage supplied to the
Anode of D636?
Ye s
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