No Sound - Panasonic TH-42PZ80U Technical Manual

No
Check the cable
between connector
A7 on the A board
and P6 on the P
board.

No Sound

Is there 15V at
Yes
pin 1 of CN A6
on the A
board?
Yes
waveform at pin 1
Check the speakers.
(Make sure A12 is
properly seated).
35
Warning: Disconnect AC Power prior to making any
disconnection or connection
No
Is there a sound
and 3 of CN A12
on the A board?
The A board
Replace