Sanyo LCD-19XR7 Service Manual page 20

3.3.no sound (TV input)
Check if PIN2, 9,10 and
14 voltage of NV1 is
normal?
Check power supply
yes
no
Check PIN5 and
PIN11 output wave of
NV1
no
Check PIN24 wave of
N3
no
Check PIN11 wave of
TUN1
no
Check TUN1 and its
periphery
18
yes
Check NV1 and its
periphery
yes
Check NS2 and its
periphery
yes Check N3 and its
periphery