PANASONIC PT-50LCZ70 VOLUME 1
Instrukcja Serwisowa

PT-50LCZ70 / PT-56LCZ70 / PT-61LCZ70 / PT-50LCZ7 / PT-56LCZ7 / PT-61LCZ7

No sound from built-in both L-CH and R-CH Speakers
Check that there is an audio signal to the Audio Out Terminal from all input terminals. (All input are NG.) (Only Audio1 OR Audio2 input is NG.) Replace the OPT/TV Unit

Replace the Rear Jack P.C.B.

(Only Audio3 input is NG.)

Replace the Rear Jack P.C.B. or Front Jack/Operation P.C.B.

(Only Tuner input is NG.) (Only Component 1 OR Component 2 input is NG.)

Replace the OPT/TV Unit or Tuner P.C.B.

Replace the Rear Jack P.C.B.

OK Replace the OPT/TV Unit or Power P.C.B.

No sound from built-in L-CH Speaker only
Press MENU key on the remote and select "Audio" in MENU screen. Then press "OK."

Does the "BALANCE" screen becomes center position? NO Set to the center position. Still NG Swap the Speaker Connectors to confirm the Speaker failure. NO Replace the OPT/TV Unit. YES

Replace the L-CH Speaker.

No sound from built-in R-CH Speaker only
Press MENU key on the remote and select "Audio" in MENU screen. Then press "OK."

Does the "BALANCE" screen becomes center position? NO Set to the center position. Still NG Swap the Speaker Connectors to confirm the Speaker failure. NO Replace the OPT/TV Unit. YES Replace the R-CH Speaker.

30