PIONEER PDP-R05G
Manual de Servicio

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3

4

No sound from the speakers (1/2)
A

No sound from the speakers No Is sound muting set? No Is the volume set to 0? No
B

Yes

Cancel muting then check again.

Yes

Raise the volume then check again.

Is it the only TV sound that doesn't come out? Yes Is a signal output normally from the FE (U7501)? (11)
C

No

Is it only the VIDEO 3 No sound that doesn't come out? Yes Is a signal input to IC8003? (4), (11) No Check the communications between the jack and IC8003.

No Check the communications around the FE and between the FE and the microcomputer.

B
Yes

B
Yes Check around IC8003 and check the communications between IC8003 and the microcomputer.

Is a signal output from IC7501? (12) 40 Yes Is a signal output from IC7502? (26), (27)

B

No Check the communications between the FE and IC7501 and around IC7501.

No

Check around IC7502. Is it sound other than the No TV or VIDEO 3 that doesn't come out? Yes Is a signal input to IC8002?

41 42
Yes

B
A
No Check the communications between IC7502 and IC8002.

D

Is a signal input to IC8002? (62), (64)

43 44
Yes

B

B
Yes

No Check the communications between the jack and IC8002.

E

Check around IC8002 and check the communications between IC8002 and the microcomputer.

F

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PDP-R05G
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