Monday 17 August 2020

REPAIRING / SERVICING LTJ400HV01-J LCD PANEL FAULTS

The following explanations are only for the panel with code LTJ400HV01-J. It does not work for different panels.


PROBLEM ------> The picture is flickering or shows / looks  double:




In order to determine which side of the panel the problem originates from, first remove the left film that connects the t-con card to the panel from both the t-con and the panel and run the TV. If the image displayed on the screen is correct, the right side of the panel is defective. If the image is the same, put the left film back on both the t-con card and the panel, and this time remove the right film. If the image improves, the problem is with the left side of the panel.


To fix the problem, remove the RM2 and RM5 resistors on the panel board. If the image is not improved in this state, remove the RM3 and RM6 resistors. If the image is not improved in this state, remove the RM4, RM7 resistors. If the image is not improved in this state, remove the RM1 resistor. The image should have improved with all resistors removed. If the image is correct, replace the resistors you removed starting from the beginning in pairs and check the image again each time. If the problem occurs when you put back the resistor series, leave that series idle. Remember to replace all resistors except the series causing the problem.