Samsung GH15H series Service Manual page 17

4 Troubleshooting 4 Troubleshooting
4-6 Microphones Don't Work
Does the PC's sound
program operate well?
Yes
Is the connection between the
PC and monitor secure?
Yes
Is the Internal Microphone
connector attached?
Yes
Does the Internal
Microphone work?
Yes
Does the External
Microphone work?
Yes
OK
4-7 Headphones Don't Work
Can you hear any sound from
the Headphones?
Yes
OK
4-6
No
Check the PC's sound program
and compatibility.
No
Connect the cable between the
PC and monitor.
Check the connection between
No
CN808 on the Audio PCB and the
Internal Microphone.
No
Check Q801 and related circuits.
No
Check the CN803 jack.
Check CN802 on the Audio PCB
No
and related circuit D805, D806,
R811, and R812.
CONFIDENTIAL
GH15H*