Sanyo PDP-32XS8DA Service Manual page 25

2.3 Picture, but no sound
Check if NV02 pin4,
5, 32, 33 are 16V?
no
Check 16V power
supply of power
board and the path
between X802 and
NV02 on main board
Check if NV02
yes
pin10, 27 are high
level?
no
If NS01 pin126, 148
are low-level?
Check the path
between NS01 pin
126,148 and
NV02 pin10, 27
Is there sound in
yes
earphone?
Has sound in earphone
when touch
CV05 with probe?
no
Check earphone
amplify circuit
Replace NS01
23
Replace
yes
NV02
no
Check
yes
audio output
CV04,
circuit of the
main IC
the