Read LG 22LS4D (CHASSIS:LD73B / NF036A) Service Manual online
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5. In case of strange screen display in specific modes
5-1. In case of no OSD display
(1) Symptom
1) LED is green.
2) The minute discharge is continuously accomplished from the module.
2) The minute discharge is continuously accomplished from the module.
(2) Procedure check
Is the LVDS cable
normal ?
Is the VSC Board
normal?
Is the LVDS cable
connected?
Re-insert the Cable.
Yes
No
No
Yes
Does the FIL8548
IC(IC700) operate?
Replace the FIL8548
IC(IC700)
No
Is the Ctrl Board of
Module normal?
Replace the Ctrl B/D.
No
No
Yes
Replace the VSC B/D
Replace the cable.
Yes
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