Hi guys,
Well, my first post here was resolved with you guys helping me trying to resolve my LG No screen issue, bad tcon board and when it was replaced, it was working until today. My issue now is with another TV, a Samsung brand. The history of it was that suddenly it did not turn on so I opened it up and saw 3 bloated caps CM856,CM860, CB852 so replaced those 3 and tried to turn it on, but nothing, the when plug in, the red light will light up and then will turn on, but no display and no backlight being seen. Tried to do a voltage reading;
Main cap, will fluctuate even when on standby will read voltage 383 then drop to 350 then goes up again. Turning it on will have the same scenario.
PS - 0
SB - 5V
A5 - 3.1
B5 - 3.1
No 12V, 13V or 24V on those connectors.
Checked all the diodes and all are good. Checked the zener diode DZM854 and it is okay, checked some capacitors that can be tested using my digital meter, (up to 200MFD only) and all is well. Not sure anymore where to check. Any help will be appreciated. Thanks guys.
Well, my first post here was resolved with you guys helping me trying to resolve my LG No screen issue, bad tcon board and when it was replaced, it was working until today. My issue now is with another TV, a Samsung brand. The history of it was that suddenly it did not turn on so I opened it up and saw 3 bloated caps CM856,CM860, CB852 so replaced those 3 and tried to turn it on, but nothing, the when plug in, the red light will light up and then will turn on, but no display and no backlight being seen. Tried to do a voltage reading;
Main cap, will fluctuate even when on standby will read voltage 383 then drop to 350 then goes up again. Turning it on will have the same scenario.
PS - 0
SB - 5V
A5 - 3.1
B5 - 3.1
No 12V, 13V or 24V on those connectors.
Checked all the diodes and all are good. Checked the zener diode DZM854 and it is okay, checked some capacitors that can be tested using my digital meter, (up to 200MFD only) and all is well. Not sure anymore where to check. Any help will be appreciated. Thanks guys.
Comment