Panasonic LIFI PT-50LCZ7, Service Manual

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No sound from built-in both L-CH and
R-CH Speakers
Replace the OPT/TV Unit
Replace the Rear Jack P.C.B.
Replace the Rear Jack P.C.B.
(All input are NG.)
Check that there is an audio signal to the Audio Out
Terminal from all input terminals.
No sound from built-in L-CH Speaker only
Press MENU key on the remote and select
"Audio" in MENU screen. Then press "OK."
Replace the L-CH Speaker.
Does the "BALANCE" screen becomes center position?
Set to the center position.
Swap the Speaker Connectors to confirm the Speaker
failure.
NO
Still NG
NO
YES
Replace the R-CH Speaker.
Does the "BALANCE" screen becomes center position?
Set to the center position.
Swap the Speaker Connectors
to confirm the Speaker failure.
NO
Still NG
NO
YES
No sound from built-in R-CH Speaker only
Press MENU key on the remote and select
"Audio" in MENU screen. Then press "OK."
(Only Audio1 OR Audio2
input is NG.)
(Only Tuner input is NG.)
(Only Audio3 input is NG.)
OK
Replace the OPT/TV Unit or Power P.C.B.
Replace the OPT/TV Unit.
Replace the OPT/TV Unit.
Replace the Rear Jack P.C.B. or
Front Jack/Operation P.C.B.
Replace the OPT/TV Unit or
Tuner P.C.B.
(Only Component 1 OR
Component 2 input is NG.)
PT-50LCZ70 / PT-56LCZ70 / PT-61LCZ70 / PT-50LCZ7 / PT-56LCZ7 / PT-61LCZ7
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