Hi guys in need of Help and assistance. The Tv comes on fine but has no picture which would believe me to be the Tcon board in my experience. The difficulty I'm having is the Tcon board which is in my set is not the same as the ones listed on Ebay as i found out to my expense. The Tcon that is in my set only has numbers but no actual part number. I was told by a frien that the Tcon board can be found by what screen is in the Tv.......
Thank you to the guys at HEGE supporting Badcaps [ HEGE ] [ HEGE DEX Chart ]
Announcement
Collapse
No announcement yet.
Lg 49uf770v no picture
Collapse
X
-
Re: Lg 49uf770v no picture
Do you get backlight ?Please Do Not PM My Page Asking For Help Badcaps Is The Place For Advise, Page Linked For Business Reasons Only. Anyone Doing So Will Be Banned Instantly !
https://www.facebook.com/Telford-Tel...7894576335359/
Comment
-
Re: Lg 49uf770v no picture
Did you check the DCV at both ends of the SMD fuse on the T-CON against chassis GND?
So those pictures in post 1 are all wrong?Last edited by budm; 12-17-2015, 05:36 PM.Never stop learning
Basic LCD TV and Monitor troubleshooting guides.
http://www.badcaps.net/forum/showthr...956#post305956
Voltage Regulator (LDO) testing:
http://www.badcaps.net/forum/showthr...999#post300999
Inverter testing using old CFL:
http://www.badcaps.net/forum/showthr...er+testing+cfl
Tear down pictures : Hit the ">" Show Albums and stories" on the left side
http://s807.photobucket.com/user/budm/library/
TV Factory reset codes listing:
http://www.badcaps.net/forum/showthread.php?t=24809
Comment
-
Re: Lg 49uf770v no picture
So what kind of tools do you have?
So pictures #5 on post 1 is the TC-ON board you have?Never stop learning
Basic LCD TV and Monitor troubleshooting guides.
http://www.badcaps.net/forum/showthr...956#post305956
Voltage Regulator (LDO) testing:
http://www.badcaps.net/forum/showthr...999#post300999
Inverter testing using old CFL:
http://www.badcaps.net/forum/showthr...er+testing+cfl
Tear down pictures : Hit the ">" Show Albums and stories" on the left side
http://s807.photobucket.com/user/budm/library/
TV Factory reset codes listing:
http://www.badcaps.net/forum/showthread.php?t=24809
Comment
-
Re: Lg 49uf770v no picture
hi put your multi meter on dc volts with the tv turned on place the black probe on the metal tv chassis and touch the red probe to each side of the white fuse on the tcon board write down the voltages thanks, just be carfull you dont slip taking voltages as you dont want to short anything out!
Comment
-
Re: Lg 49uf770v no picture
Hey, I have the exact same problem. my LG 49UF770V has no picture but the sound is working and the backlights come on. I have swapped out the T-CON board for a new one but the result is the same! Anyone have any suggestions? I've just ordered a multi-meter so I will take some readings tomorrow. What voltage should I be reading on that fuse? 5V?
Thanks
Comment
-
Re: Lg 49uf770v no picture
some tvs though you can alter the panel size in the service menu so the mainboard may of worked then got faulty or maybe a previous owner swopped it out, the main thing is the set is working now so alls good.Last edited by vinceroger69; 01-22-2017, 02:49 PM.
Comment
Comment