Daewoo LCD TV, Руководство по обслуживанию

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Hardware Troubleshooting : Digital Board
-15-
1.2 In case of PC and HDMI mode
START
Check the input resolution
of external device
IC501 Problem.
Replace the Main PCB
IC501 Problem.
Replace the Main PCB
1) PC mode : Check the path from Jack to Pin Y7, W10 and
U8
2) HDMI mode : Check the path from input jack to Pin M2,
M1, N2, N1, P2, L2, L1, U11 and T1 of IC501
Perhaps Connector and Cable
Problem.
Replace the Main PCB
Check
PC/HDMI resolution to
available resolution in
LCD TV
Yes
No
Check
the LVDS connector and cable
is correct
Is the input signal of IC501 normal?
Check
the LVDS signal output of IC501 is correct
(Pin A14, B14, A15, B15, A16, B16, A17,
B17, A18, B18, A19, B19)
No
Yes
No
Check the SMPS and
input voltage
Check
the input power of
IC501 is correct
Yes
No
Yes
No
Yes