Haier LE49K6500U Service Manual page 43

Trouble Shooting
AV No sound but have picture
Check if there is sound input signal
Check if there is signal at C3 and C4
Check if there is signal at RA230 RA229 and RA40 RA228
Check if there is signal at LA3,LA8,LA16,LA15
Check the speakers
Yes
Yes
Yes
Yes
Still having problems
No
Check the input source
No
Change U201
No
Change L32 voltage
Else
Change L32
Change Mainboard
- 53 -
12V
Change UA4