Table of Contents
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Service Manual
Model No.: 55DA5550
No sound but have picture
Verify if the speakers are
broken
No
Verify if the main board has the
right input ,according to the source
you connect.
TV/COMPONENT/AV/VGA/HDMI etc.
Yes
Verify if UA4 has the right
output
Yes
Check CN7 input is right
Still having problems
Yes
Change the speakers
No
Check the corresponding audio
input circuit you connect.
No
Verify if UA4 has the right power in
Change UA4
Change Mainboard
No
40
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