Sanyo LED-24XR113D Service Manual page 38

No sound, but picture is normal:
3．
No sound
Check if level of
N607-PIN19&25
are all high?
No
Check if level of
V606-b is low?
Yes No
Replace
V606
Check Reset &
Mute circuits of
power amplifier.
Check if
Yes
signal inputted
N607-PIN15&20&21
&22 ?
Yes
Check power voltage
of N607.
Yes
Check IIC signal of
N607- PIN23&24.
Check
N607
peripheral
circuits
there is
No
to
No
Check
IIC
circuits
Check IIS
(signal input
circuits) on main
board.
Check +12V on
power board.