Panasonic PT-56LCX70 Service Manual page 29

HOW TO DETERMINE WHICH P.C.B. IS DEFECTIVE
No picture or abnormal picture
(Only Video1 OR 2 input is NG.)
(Only Video3 input is NG.)
(Only S-VIDEO 1 input is NG.)
(Only tuner Analog CH input is NG.)
(Only PC input is NG.)
(Only Component 1 OR 2 input is NG.)
(Only Digital Tuner input is NG.)
(Only HDMI3 or SD Card input is NG.)
(Only HDMI1 or HDMI2 is NG.)
(All inputs are NG.)
PT-56LCX70 / PT-61LCX70 / PT-50LCX7 / PT-56LCX7 / PT-61LCX7
ABNORMAL PICTURE:
No Picture Color (Black and White picture)
Abnormal Picture Color
Unsynchronized Picture
Dark Picture
Replace the OPT/TV Unit or the
Rear Jack P.C.B.
Replace the Front Jack/Operation
P.C.B. or the OPT/TV Unit.
Replace the OPT/TV Unit or the
Rear Jack P.C.B.
Replace the Tuner P.C.B. or the
OPT/TV Unit.
Replace the OPT/TV Unit.
Replace the OPT/TV Unit or the
Rear Jack P.C.B.
Replace the Tuner P.C.B. or the
OPT/TV Unit.
Replace the SD/HDMI P.C.B. or the
OPT/TV Unit.
Replace the OPT/TV Unit.
Replace the OPT/TV Unit.
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