Denon DN-MC6000 - Power On and Fuse Blowout Troubleshooting

23
O.K.
N.G.
The fuse blows out.
Are +12V line voltage and +5V line voltage for CPU
power supply normal?
Replace it if defective.
After servicing, replace the fuse.
O.K.
O.K.
The power cannot be turned on.
Is the fuse normal?
Refer to FLOW CHART
NO.2<The fuse blows out.>.
Is the FFC (22pin:CN100) connected correctly?
N.G.
N.G.
N.G.
Is +5V or more supplied to 22pin of CPU(IC100)?
Check IC101 and perifery circuit, and replace it if
defective.(L708,SW700,C726,C727,IC101,C216,
C217,C100,L100,C102,C132,IC100)
Reconnect normaly.
Check the rectifying circuit of secondary side,
and replace it if defective.
O.K.
TROUBLE SHOOTING
FLOW CHART NO.1 (405-MC6000-2783 : I/O UNIT)
FLOW CHART NO.2 (405-MC6000-2783: I/O UNIT)