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4-6 GH15LS/GH15ES/GH15MS
4 Troubleshooting
4-6 Microphones Don’t Work
No
Does the PC’s sound
program operate well?
Check the PC’s sound program
and compatibility.
Yes
OK
No
Does the External Microphone
work?
Check the CN803 jack.
Yes
No
Is the connection between the PC
and monitor secure?
Connect the cable between the PC
and monitor.
Yes
OK
No
Can you hear any sound from
the Headphones?
Check CN802 on the Audio PCB
and related circuit D805, D806,
R811, and R812.
Yes
No
Is the Internal Microphone
connector attached?
Check the connection between
CN808 on the Audio PCB and the
Internal Microphone.
Yes
No
Does the Internal Microphone
work?
Check Q801 and related circuits.
Yes
4-7 Headphones Don’t Work