Sanyo LCD-22XR9DZ, Service Manual

Page: 26 / 43

3
．
There is picture but no sound.
No sound
Yes Yes
No No
Check if the voltage
of
NV01-6/7# is
high level ?
Change
another
NV01
Check if the wave
of
NV01-4/12# is
normal ?
No
Yes No Yes Yes
Yes No
No
Check the voltage
of
VV01-b# is low
level ?
Check if the wave
of
NV02-3/5# is
normal ?
Check if the
voltage of
VV02-b# is
low level ?
Change
another
NV02
Change
another
NS01
Check if the wave of
CV10’s or CV12’s pin
beside NS01 is normal ?
Change
another
VV01
Change
another
CV10 or
CV12
Change
another
VV02