Denon ADV-1000 Service Manual page 15

QQ
3 7 63 1515 0
5. No analog signal output (Audio)
Check audio digital signal.
Check if signals are output from
IC101(32)TWS, (33)TSD0, (39)MCLK,
and (40)TBCK.
Check analog audio signal
Check if signals are output from IC401
(12)R-sig., (13)R-sig., (16)L-sig., and
(17)L-sig.
Check analog audio signal
Check if signals are output from
IC404 (7)R-sig. and (1)L-sig.
TE
L 13942296513
6. Switching power no output
Check fuse
Check if F901 (6.3A/125V) is blown out.
Check actuating voltage.
[IC201]: +17~18V
4
www
.
http://www.xiaoyu163.com
Check soldering of chip emi-fil put in
No
series to IC101 on DVD MAIN P.W.B.
(GU-3430).
No
. Check soldering of IC401 on DSP/
1
AUDIO P.W.B. (1U-3435-3).
No
. Check if
2
IC402 on DSP/AUDIO P.W.B. (1U-3435-3).
Check soldering of IC402 on DSP/
AUDIO P.W.B. (1U-3435-3).
Check soldering of IC201 and primary
No
rectifier diode on P. SUPPLY P.W.B.
(1U-3434-2).
No Check if the secondary regulator circuit
/ GND in P. SUPPLY P.W.B. (1U-3434-2) is
5
DC
shorted or solder-touched.
Check by replacing shorted or solder-
touched element in the secondary
regulator circuit in P. SUPPLY P.W.B.
(1U-3434-2).
x ao
y
i
http://www.xiaoyu163.com
8
12V power is supplied to
Q Q
3 6 7 1 3
u163
.
2 9 9 4 2 8
Check by replacing IC101 on DVD MAIN
No
P.W.B. (GU-3430).
No
Check by replacing IC401 on DSP/
AUDIO P.W.B. (1U-3435-3).
No
Refer to "6. Switching power no output".
Check by replacing IC402 on DSP/
No
AUDIO P.W.B. (1U-3435-3).
1 5 0 5 8 2 9 9 4
No Check by replacing IC901 on P. SUPPLY
P.W.B. (1U-3434-2).
Check if the power lines of CX071,
No
CW035, CW061, CX171, and CX033 on
P. SUPPLY P.W.B. (1U-3434-2) are
short-circuited further their connections.
m
co
ADV-1000
9 9
2 8 9 9
15