Panasonic TC-L42D2

Slide # 89
Sound Defect
<Symptom> Sound Distortion
Yes
Is sound
from all input sources
NG?
No
Tuner area
Digital
Demodulator
area
HDMI
Decoder area
Analog TV
sound is NG
Digital TV
sound is NG
HDMI
sound is NG
A board
Audio Signal
Processor
area
Ａ
Tuner
Input
Terminal
Signal
Processor
Speaker
Opt Audio
Head Phone
No
Audio Amp area
No
Is sound from the
headphone jack
normal?
Yes
Is there a
problem with one of
the speakers?
Yes
Speaker