4.Troubleshooting
■NoSound
Symptom•Videoisnormalbutthereisnosound.
MajorChecklist
•Whenthespeakerconnectorsaredisconnectedordamaged.
•WhenthesoundprocessingpartoftheMainBoardisnotfunctioning.
•Speakerdefect.
•SMPSnotsupplyingvoltagetothemainboard.
Diagnostics
Ye s
Ye s
Ye s
Re place the S pea ke r.
Re place the S MPS.
Is th e output volta ge of S MP S norma l?
(CN801 P IN 7 : 15V)
Re place the Main board.
(1)
Is the s pe ake r output termina l of
the Main board norma l?
Conne ct the cable prope rly or
replace the cable, if ne ce s sa ry.
Is the cable conne ction betwee n
Main boa rd a nd the s pe a ker
properly connecte d?
No
No
No
CAUTION
MakesuretodisconnectthepowerbeforeworkingontheIPboard.
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