Sanyo LCD-22XR7SN Service Manual page 22

3 3.no 3.no sound soun
Check if PIN2, 3,13 and
14 voltage of NV4 is
normal?
no
Check power supply
Check PIN5
yes
PIN11 output wave of
NV4
no
Check PIN10 wave of
N101
no
Check PIN11 wave of
TUNER
no
Replace TUNER
20
and
yes
Replace NV4
yes Replace NS2
yes
Replace N101