Pioneer PDP-R04E Service Manual page 132

1
No sound from the headphones
A
No sound from the
headphones
No
Is sound muting set?
No
Is the volume set to 0?
B
No
Is a signal output from
IC8003?
(3) (13)
34 35
Yes
Is a signal output from
IC8008?
(7) (10)
36 37
C
Yes
Is a signal output from
IC8007?
(1) (7)
38 39
Yes
Is the flexible cable between
CN8653 and CN9502
correctly connected?
Yes
D
Check around the jack.
E
F
132
1
2
Yes
Cancel muting then check
again.
Yes
Raise the volume then
check again.
No
Check around IC8003 and
check each input signal.
B
No
Check around IC8008.
B
No
Check around IC8007.
B
No
Reconnect the flexible cable
then check again.
2
3
No sound from MONITOR
OUT
No
Is sound muting set?
No
Is the volume set to 0?
No
Is a signal output from
IC8003?
(3) (13)
34
Yes
Check around the jack.
PDP-R04E
3
4
Yes
Cancel muting then check
again.
Yes
Raise the volume then
check again.
No
Check around IC8003 and
check each input signal.
B
35
4