you connect.
Service Manual
Model No.: LE50D3505
No sound but have picture
Verify if the speakers are
broken
No
Yes
Change the speakers
Verify if the main board has the
right input ,according to the source
TV/COMPONENT/AV/VGA/HDMI etc.
Yes
Verify if UA1 has the right
output
Yes
Check CN17 input is right
No
No
Check the corresponding audio
input circuit you connect.
Verify if UA1 has the right power in
No
Change UA1
Still having problems
Change Mainboard
40
Summary of Contents for LE50D3505
Page 10: ...Service Manual Model No LE50D3505 2 2 External pictures four faces Front Side Up Side 9 ...
Page 11: ...Service Manual Model No LE50D3505 Right Side Back Side 10 ...
Page 18: ...Service Manual Model No LE50D3505 17 ...
Page 24: ...Service Manual Model No LE50D3505 Chapter 7 Electrical Parts 7 1 Circuit Diagram ...
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Page 31: ...Service Manual Model No LE50D3505 7 2 Wiring Connection Diagram 30 ...
Page 37: ...Service Manual Model No LE50D3505 9 2 Mainboard IC Introduction Top view 36 1 2 3 4 5 6 7 8 ...
Page 38: ...Service Manual Model No LE50D3505 Bottom view 37 ...
