TROUBLESHOOTING GUIDE
E-8
No PC/HDMI audio
Replace U19
Yes
No
Replace Speak
er
Check
if signal of U19
pin 3,13 is normal
Replace U9
No
Check
if signal of
U9 pin 85,86 is normal
Yes
Replace U2
No
Check
if signal of
U2 pin 1,7 is normal
Yes
Replace U1
No
Check
if signal of
U1 pin 16,17,20,21
40,41,44,45 is normal
Yes
