Panasonic PT-VZ570 Service Manual page 39

SECTION 1 SERVICE INFORMATION
■ Built-in speaker check
Check the waveform at pins 1 and 3 of connector [J2]
A
Replace speaker
Replace [A]-P.C.Board
A
■ AUDIO OUT check
[ANALOG]
A Check the connection cable between connectors [KA1] and
[J1]
J Replace [J]-P.C.Board
Replace [A]-P.C.Board
A
OK
NG
OK
NG
NG
J
Check IC001 and peripheral circuits
NG
Replace the cable
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