Panasonic PT-EZ770T

INF-42
SECTION 1 SERVICE INFORMATION
■ Built-in speaker check
■ AUDIO OUT check
A Check the waveform at pins 1 and 3 of connector [A1]
NG
A Check IC1028 and peripheral circuits
A
[ANALOG]
Check the connection cable between connectors [A28] and
[JK4007]
NG
A Replacecable
A Replacespeaker
J Replace[J]-P.C.Board
A Replace[A]-P.C.Board
A Replace[A]-P.C.Board
OK
OK
OK
OK