Pioneer PDP-R06G Service Manual page 46

1
No sound from the speakers (2/2)
A
A
Is the sound from all inputs
not output?
Yes
Are the signals output from
IC4804?
(pin 35), (pin 36)
29
B
Yes
Has the signal arrived at
CN7201?
(pin 20) (pin 13)
30
Yes
Has the symptom been
settled when the system
cable is replaced?
Yes
C
Finishing troubleshooting
D
E
F
46
1
2
Check around IC4804
No
and communication between
IC4804 and the microcomputer.
No
Check between CN7201 and
IC4804.
No
The panel is defective.
PDP-R06G
2
3
No sound from the subwoofer
No sound from the
subwoofer
Yes
Yes
Is the sound muted?
No
Yes
Is the volume set to "0"?
No
Yes
Are the headphones
connected?
No
Are the signals output from
No
IC4804?
(pin 31), (pin 32)
31
Yes
Are the signals output from
No
IC4807?
(pin 1), (pin 7)
32
Yes
Check around the pin jack.
3
4
Cancel muting and check
the sound again.
Raise the volume and
check the sound again.
Disconnect the headphones
then check the sound again.
Check around IC4804 and
each input signal.
Check around IC4807.
4