Samsung PS51D550C1WXZG Service Manual page 28

4. Troubleshooting
CAUTION
Make sure to disconnect the power before working on the IP board.
4-7
Is the ca ble conne ction be twe e n
Main boa rd a nd the s pe a ke r
prope rly conne cte d?
Ye s
Is th e output volta ge of S MP S norma l?
(CN801 7pin : 15V)
Ye s
(1)
Is the s pe a ke r output te rmina l of
the Ma in boa rd norma l?
Ye s
Re place the S pe a ke r.
No
Conne ct the ca ble prope rly or
re place the ca ble, if ne ce s s a ry.
No
No
Re place the Main boa rd.
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Re place the S MP S .
Sound Output Shape
(1)