Trouble Shooting - Denon MC6000MK2EM Service Manual

TROUBLE SHOOTING

1. FLOW CHART NO.1 (704-6K2-A617 : MAIN PCB ASS'Y)
The unit does not power on
Has a fuse broken?
Are the FFC(24 pin:CN102), FFC(20 pin:CN801),
and PH(6 pin:CN1) correctly connected?
Is a voltage of +5V supplied to 7 pin of IC100(CPU)?
Replace IC100.
FLOW CHART NO.2 (704-6K2-A617 : MAIN PCB ASS'Y)
Broken fuse
Are +12V, D5V and D3.3V voltage line supply being correctly?
Replace the fuse after repair.
NO
YES
YES
YES
YES
See FLOW CHART NO.2 <Broken fuse>.
NO
Connect the connectors correctly.
NO
Check the circuits around the IC100 and replace any faulty
parts. (L1, SW1, Q1, L5, IC2, L7, L4, IC105)
NO
Replace any faulty parts.
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