Sanyo LCD-22XR8DA, Service Manual

Page: 32 / 44

30
2.3 Picture, but no sound
Check if PIN6, 7 of N408
is high voltage?
Check if V406 base is
low voltage
Check the wave of
PIN4,12 of N408
Check the wave of
N101 pin76,77
Replace N214
Replace V406
Replace N408
Replace N214
no
yes
no
yes
yes
yes
yes no
Check if V408 base
is low voltage
Replace V408
yes no
Replace N101