Denon DN-MC6000 - Voltage Output Troubleshooting

25
A5V is not outputted.
FLOW CHARTNo.6 (405-MC6000-2783
：
I/O UNIT)
O.K.
N.G.
Is +6V line voltage normal?
Refer to FLOW CHART
NO.3<+6V is not outputted.>.
Check IC703 and the periphery circuit, and replace
it if defective.
O.K.
N.G.
+15V is not outputted.
Is +10V or more supplied to 18pin of IC705.
Check C774,C783,R711,R754,Q700,Q706, and
replace it if defective.
Check IC705 and the periphery circuit, and replace
it if defective.
FLOW CHARTNo.7 (405-MC6000-2783 : I/O UNIT)
O.K.
Is the fuse normal?
Refer to FLOW CHART
NO.2<The fuse blows out.>.
N.G.
O.K.
N.G.
-15V is not outputted.
Is +10V or more supplied to 18pin of IC705?
Check C774,C783,R711,R754,Q700,Q706, and
replace it if defective.
Check IC705 and the periphery circuit, and replace
it if defective.
FLOW CHARTNo.8 (405-MC6000-2783 : I/O UNIT)
O.K.
Is the fuse normal?
Refer to FLOW CHART
NO.2<The fuse blows out.>.
N.G.