Daewoo DLA-32C7LAB Service Manual page 14

Hardware Troubleshooting : Digital Board
1.2 In case of PC and HDMI mode
START
Check
PC/HDMI resolution to
available resolution in
LCD TV
Check
the input power of
IC501 is correct
Check
the LVDS signal output of IC501 is correct
(Use RC450~RC459)
Is the input signal of IC501 normal?
1) PC mode : Check the path from Jack to Pin R3, P2
and N1 of IC501
2) HDMI mode : Check the path from input jack to Pin
B1, A1, B3, A3, B5, A5, B7, A7 and F4 of IC501
No
Yes
No
Yes
No
Yes
No
IC501 Problem.
Replace the Main PCB
Check the input resolution
of external device
Check the SMPS and
input voltage
Yes
Check
the LVDS connector and cable
is correct
Yes
IC501 Problem.
Replace the Main PCB
-14-
No
Perhaps Connector and Cable
Problem.
Replace the Main PCB