Haier HP-2999 Service Manual page 26

TV program sound off
Check pin 7 of N201 for
noise suppression
No
Check N201 44 for
sound signal output
None
Check and replace N201
Yes
Press mute button, or check
Yes
Check N701 3
for sound signal output
Yes
Check N701 15
for sound signal output
None Yes
Check and
replace N701
Check N601 and peripheral
circuit components
25
Maintenance Service and Trouble Shooting
and replace N201
5
18 Check V213, R243,
C246 and C706
None