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FLOW CHART NO.3 (8U-110068-1, -2:POWER UNIT)
+1.2V is not outputted.
Is the +5V line voltage normal?
Check IC903 and the periphery circuit, and replace
it if defective
FLOW CHART NO.4 (8U-110068-1, -2:POWER UNIT)
+3.3V is not outputted.
See FLOW CHART
NO.1 <Is the +3.3V line voltage normal?>
FLOW CHART NO.5 (8U-110068:POWER UNIT)
+15VA is not outputted.
Is the fuse normal?
Is the voltage of +15V or more supplied to IN
terminal of IC907
Check IC907 and the periphery circuit, and replace
it if defective.
O.K.
O.K.
O.K.
O.K.
O.K.
O.K.
Check if there is any leak or short-circuiting on the
N.G.
primary circuit component, and replace it if
defective.
(C901,C902,C903,C906,C907,C908,L901,L902,T901)
N.G.
See FLOW CHART NO.2 <The fuse blows out.>
N.G.
Check D924 and replace it if defective.
21
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