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6 Troubleshooting
6-6 SyncMaster 33*TFT/53*TFT
6-8 Headphones Don’t Work (SyncMaster 330TFT/530TFT)
Check the Headphone Plug in the
Headphone Jack and R821, R822,
C815 on the Audio PCB.
Check CN813 on the Audio PCB
and related circuit R817, R820,
ZD801, ZD802.
OK
Can you hear any sound from
the Headphones?
Do you hear sound from the
Internal Speaker?
Yes
Yes
No
No
6-7 Microphones Don’t Work (SyncMaster 330TFT/530TFT)
Check the PC’s sound program
and compatibility.
Connect the cable between the PC
and monitor.
Does the PC’s sound
program operate well?
Is the connection between the PC
and monitor secure?
Yes
No
Yes
No
Check the connection between
CN805 on the Audio PCB and the
Internal Microphone.
Is the Internal Microphone
connector attached?
Yes
No
Check Q802 and related circuits.
Does the Internal Microphone
work?
Yes
No
Check the CN182 jack.
OK
Does the External Microphone
work?
Yes
No