45
4. The power can not be turned on
4.1. STANDBY LED lights -> flash.
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 -> flash.
"
4.2. STANDBY LED FLASHES WHILE USING UNIT
(PROTECTION CIRCUIT IS SET)
Summary of Contents for HD-DAC1
Page 8: ...Personal notes 8 ...
Page 46: ...46 Personal notes ...
Page 52: ...WIRING DIAGRAM 52 ...
Page 68: ...NJV7181 IC48 Pin configuration BLOCK DIAGRAM 68 ...
Page 69: ...MFI337S3959 DIGITAL IC14 69 ...
Page 70: ...PCM9211 DIGITAL IC42 PCM9211 Block Diagram 70 ...
Page 71: ...PCM9211 Pin Discriptions 71 ...
Page 72: ...uPD63530 DIGITAL IC41 72 ...
Page 73: ...uPD63530 Pin Discriptions 73 ...
Page 74: ...74 ...
Page 75: ...ADuM1280 DIGITAL IC51 IC52 IC57 IC58 ADuM1285 DIGITAL IC53 IC54 IC55 IC56 75 ...
Page 79: ...CS2000 CP DIGITAL IC22 CS2000 CP DIGITAL U3914 Block Diagram 79 ...
Page 80: ...2 DISPLAY FLD GP1261AI FL81 DIMENSION PIN CONNECTION PTTERN DETAIL 80 ...