you connect.
Service Manual
Model No.:
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
40D2000
Summary of Contents for 40D2000
Page 10: ...Service Manual Model No 2 2 External pictures four faces Front Side Up Side 9 40D2000 ...
Page 11: ...Service Manual Model No Right Side Back Side 10 40D2000 ...
Page 17: ...Service Manual Model No TFT LCD Module 17 40D2000 ...
Page 23: ...Service Manual Model No Chapter 7 Electrical Parts 7 1 Circuit Diagram 40D2000 ...
Page 24: ......
Page 25: ......
Page 26: ......
Page 27: ......
Page 28: ......
Page 29: ......
Page 30: ...Service Manual Model No 7 2 Wiring Connection Diagram 30 40D2000 ...
Page 36: ...Service Manual Model No 9 2 Mainboard IC Introduction Top view 36 1 2 3 4 5 6 7 8 40D2000 ...
Page 37: ...Service Manual Model No Bottom view 37 40D2000 ...
