I SAW THIS ON CRAIGSLIST IS IT WORTH TRYING FIXING AND WHAT COULD BE THE PROBLEM? THANKS Im selling my lg 50 inch tv for parts or someone who can fix it. the screen is great the problem I messed the software up by watching fios in a room that did not have the box it scrambled the software now when I turn the tv on I cant hear the collors are tinted red and none of the bottons work well and everything weird is flashing out of place its just a mess model is lg 50pg20
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Re: Lg 50pg20 can this be fixed
HE JUST REPLIED WITH THIS: i can pull up menu but nothing works everything i click its giving wrong words. for example if i click schreen tint it starts talking about something else..and it freezes up and i have to unplug it the more i think abou tit i probably broke it using the power amp thing to increase the cable connection i had no box -
Re: Lg 50pg20 can this be fixed
Maybe try updating the firmware? If that doesn't work you could just replace the main board, if you can find one that is priced right.Comment
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Re: Lg 50pg20 can this be fixed
6 years old Plasma (http://www.cnet.com/products/lg-50pg20/#!), I hope it is really low price and no burn-in on the screen.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=24809Comment
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Re: Lg 50pg20 can this be fixed
What would be a low price? thanksComment
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Re: Lg 50pg20 can this be fixed
Sounds like it could be a difficult fix.
These LGs are known to have some minor issues with image burn and also stuck lines, generally I avoid them unless very cheap. They aren't great plasmas or TVs in general.Please do not PM me with questions! Questions via PM will not be answered. Post on the forums instead!
For service manual, schematic, boardview (board view), datasheet, cad - use our search.Comment
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TV was fixed just after removing Samsung's rear snap cover.
This curved TV's construction is rather interesting. When the snapped on back is removed, rest of the TV will relax the curvature. Top of LCD panel is loose as it wants to straighten out against the slightly curved bezel. Snapped back provide most of the curvature shape. So just simple disassembly of rear cover will allow the rest of the TV frame to relax its curvature. Thats probably what fixed it but no idea which connection. 4x LEDs are edge lit.
Maybe PSU->backlight connector didn't have a good contact?...07-23-2025, 12:34 AM -
Failure Symptom
No picture, just red vertical stripes. Google search shows quite common problem for these recent Vizio M series although red vertical stripe pattern may differ. Some call it "Netflix" boot screen haha.
Where is the short?
Panel has 4x buffer boards. Quickly found the 1/4 panel buffer board with the problem by selectively disconnecting buffer board flex cables.
Having recently fixed another Vizio with similar symptoms that was a shorted ESD diode array ( link ) Probed the ESD diode array but... -
I'm new to this so I hope I'm doing it right So....I picked up a LG 50PG20-ua Plasma TV (Someone's throwaway pickup) First power up no picture or sound
Found power board to be bad and I repaired it. (Bad caps) Now all power volt readings are good. Still no picture or sound. I plugged in power cord, no click and the standby light on the on/off button comes on blue as soon as it is plugged in and does not turn off when button is push. I then pulled the main board off to look at it better and the initial inspection (front and back) I cannot see anything bad. Before I put the board back...10-24-2024, 11:12 AM -
TV runs, backlight on, have sound and no image (dark grey/blue/black LCD)
Disconnected right (looking from rear of TV) tcon-buffer board cable, LCD left half displays.
No shorts on right buffer board.
Started masking tcon-buffer board signals... (connection #1 in main board pic) about 20+ pins from top of connector... LCD fully displays with some anomalies.
Gradually reduced # of masking signals... eventually down to 1. Removed that... LCD works perfectly.
No obvious damage on right buffer board 3x COF to the panel like another 43" LG fixed ( link ) with... -
Hello
I have this board working fine designed to 42v fixed output using lm324n chip and i really need to make adjustable output (ideal if Vol and Current with 2 pots but at least only Vol).... i was trying to do it with datasheet and several diagrams but could not
the pins 1 2 and 3 are unconnected so it is using only 3 op amps in the chip.... How do you think I can mod it?
or any hint for an schematic similar.. thks in advance...
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