Monday, January 07, 2013

LG 42PG 60UD _ NO OSD _ RASTER OK _ DOESN'T DISPLAY THE SCREEN INTO SPECIFIC MODE _ TROUBLESHOOTING CHART



IN CASE OF DOESN'T DISPLAY THE SCREEN  INTO SPECIFIC MODE

SYMPTOM

  • The screen does not become the display from specific input mode (RF, AV, Component, RGB, DVI).
Is the Tuner normal?
No
Is the RF cable connected with TV
Set?
Yes
Is the Input voltage, IIC Communication
and CVBS output normal?


No

No
Yes

BLOCK A

Connect the RF cable

Replace the tuner
Is the IC100(FLI106X0H)
normal?
No
Is the IIC  communication waveform
between the tuner and IC100 normal?
No
Replace the
IC100(FLI106X0H).


IN THE CASE THE OSD DOES NOT DISPLAYED

SYMPTOM

  1. LED is Green.
  2. The minute discharge continuously becomes accomplished from module.



Is the LVDS cable
normal ?
No
Is the LVDS cable
connected?

Yes
Replace the LVDS cable.


No




Yes

Connect the LVDS cable with the VSC board



Is the VSC Board
normal?
No 
Is the IC100(FLI106X0H)
normal?

Yes
Replace the VSC B/D


No


Yes

Replace the
IC100(FLI106X0H)


Is the Ctrl Board of
Module normal?
No
Replace the Ctrl B/D.