Sound Defect - Panasonic TC-L42D2 Technical Manual

Sound Defect

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