Daewoo LA32L1B1LM, Service Manual

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Hardware Trouble shooting
-20-
4) No Picture- PC & HDMI mode
START
Yes
Yes
Yes
Yes
Yes
No
No
No
No
Check the SMPS and input voltage
IC401 problem.
Replace the Main PCB
Check
The input power of
IC401 is correct
Check the LVDS signal
output of IC401 is correct
Check
The LVDS connector and
cable is correct
Is the input signal of IC401
nomal?
1) PC mode: Check the mode
JK203(RC206, RC207, RC210, RC211, RC212, LC205~207)
-> IC203(CC234, CC236, CC238) -> IC401(RC237 ~ 239)
2) HDMI mode: Check the mode
Yes
No
Check the input resolution of external device
Check
PC/HDMI resolution to
Available resolution in
LCD TV
IC401 problem.
Replace the Main PCB
Perhaps Connector and
Cable problem.
Replace connector or cable.