Sanyo LCD-32XR11 Service Manual page 24

No sound, but picture is normal:
3．
No sound
Check if level of
NV01-PIN19&25
are all high?
No
Check if level of
VV03-b is low?
Yes
Replace
VV03
Check Reset &
Mute circuits of
power amplifier.
Check
Yes
signal
NV01-PIN15&20&21
&22 ?
Check power voltage
of NV01.
No
Check IIC signal of
NV01- PIN23&24.
if there is
No
inputted to
Yes
No
Yes
Check IIS
(signal input
circuits) on main
board.
Check +24V on
power board.