Marantz HD-DAC1 - TROUBLESHOOTING: Power On Issues; Standby LED Flashing (Protection Circuit)

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4. The power can not be turned on
4.1. STANDBYLEDlights->ash.
Check whether power
is being supplied to the
F902, F903, F904
.
Check each connector.
Check whether power
is being supplied to the
coil of the MAIN TRANS.
Check whether power
is being supplied to the
D912, D913, D914, D915,
D916, D917
Broken
D912-D917
Broken wire in MAIN
TRANS.
Broken FUSE
F902, F903,
F904
Check soldering or replace.
IC92, IC93, IC94
IC95, IC96, Q905
STANDBY LED repeats
ON/OFF for 0.5 seconds
each.
Power not supplied.
Power not supplied.
Power not supplied.
Power supplied.
Check the output of
Regulator.
IC92, IC93, IC94
IC95, IC96, Q905
YES
YES
NO
NO
NO
YES
Check the soldering or
replase WF94, CN94,
BN92, CN11, D925, D926,
D921, D927, D929, D930,
Q909, Q910, Q907, Q908,
Q914, Q915
Q911, R925, R926, L911,
R127, R117, R118, R119,
IC11
YES
NO
Check each connector
See
"
4.1. STANDBY LED lights -> ash.
"
4.2. STANDBY LED FLASHES WHILE USING UNIT
(PROTECTION CIRCUIT IS SET)