Pioneer PDP-R05E, Service Manual

Page: 169 / 213

PDP-R05E
169
5 6 7 8
5 6
7
8
C
D
F
A
B
E
No sound from the speakers (2/2)
No sound from the
sub-woofer
No
Is sound muting set?
Yes
Cancel muting then check
again.
Is the volume set to 0?
Raise the volume then
check again.
No
Yes
Are the headphones
connected? Disconnect the headphones
then check again.
No
Is it sound for every function
that doesn't come out?
Yes
No
No
Yes
B
Is a signal output from
IC8002?
Check around IC8002 and
check the communications
between IC8002 and the
microcomputer.
No
Yes
B
Has the signal arrived at
TP8668 and TP8667?
Check around IC8003 and
check the buffer circuits.
No
Yes
B
Has the signal arrived at
TP9301 and TP9303?
Check the flexible cables
between the AV BOARD Assy
and MR MAIN BOARD Assy
and between the MR MAIN
BOARD Assy and MDR Assy.
No
Yes
Has the symptom been
settled when the system
cable is replaced?
The panel is defective.
Finishing troubleshooting
No
B
Is a signal output from
IC8003?
(3), (13)
Check around IC8003 and
check each input signal.
No
Yes
B
Is a signal output from
IC8008?
(7), (10)
Check around IC8008.
No
Yes
B
Is a signal output from
IC8007?
(1), (7)
Check around IC8007.
No
Yes
B
Has the signal arrived at
TP7710?
Check around Q7761.
Yes
Check around the jack.
No
46 45
48 47
37 36
39
49
38
35 34
A