4.Troubleshooting
■NoSound
Symptom•Videoisnormalbutthereisnosound.
MajorChecklist
•Whenthespeakerconnectorsaredisconnectedordamaged.
•WhenthesoundprocessingpartoftheMainBoardisnotfunctioning.
•Speakerdefect.
•SMPSnotsupplyingvoltagetothemainboard.
Diagnostics
Ye s
Ye s
Ye s
Re place the S pe a ke r.
Re place the SMPS.
Is th e output volta ge of S MPS norma l?
(CN801 7pin : 15V)
Re place the Main Boa rd.
(1)
Is the s pe a ker output te rmina l of
the Main boa rd norma l?
Conne ct the ca ble prope rly or
replace the ca ble, if neces s ary.
Is the cable conne ction betwe en
Main board a nd the s pe ake r
prope rly conne cte d?
No
No
No
CAUTION
MakesuretodisconnectthepowerbeforeworkingontheIPboard.
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