Supposidly fixed this set or so I thought. Tv works flawless for roughly 2 hours then the lower half of the screen starts to flicker in and out. Picture is still there its just dimming in sections. How do I access service menu on this set? Tab bonding issue or should I look at the power supply?
Phillips 47pfl7403d lower half screen flicker
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by fixit007I picked up this TV that the prior owner said - just died.
Tested the fuse - burnt. A dead capacitor is visible too on the hot side (CP801). Got the replacement power board (cheaply - used). Replaced the board - the TV turned ON!
Now, about a month later (yesterday) I noticed the left side of the screen was flickering from time to time. That was already happening with the antenna input, not through HDMI.
Also, some glitchiness with a Fire stick on HDMI3 - I hit an app with quick dark screen in stick, the TV goes - no input. Then I had to choose the stick... -
by kcaHello all ~
Hope this finds you well. This LG 82UN8570AUD (April 2021 model) 4K UHD television has full audio capabilities but video is compromised / problematic.
When I picked up this large LG tv it had a full black screen upon startup. Previous owner said it just went black one day. No popping sound or anything else of note.
I got the display to work by taping off several traces of the right-hand side ribbon cable on the TCON that leads from TCON to PANEL. However, despite dozens and dozens of attempts to find the right combination / range of traces taped... -
by Raulnngood night! I have this screen that looks half black and half white. the tcon gives a low vgh value (5-6v). the rest seem fine. I first removed the flex from one half of the panel and then the other. Removing the left, vgh increases it to 25-26v. I think the problem is in that area, but there are not many elements on the integrated controller board. there are no shorted capacitors. could they be a cof? Some help?
By the way, now the entire screen is black. Maybe some flex was not connected correctly... I have exchanged the flex and there are no variations, I don't think they are the... -
by reessiHello,
The monitor started off showing flickering thin (1 pixel) lines horizontally every say 3mm..
They are black on the right and gradually fade to nothing on the far left.
They start either after 5 mins or up to 2 hours after so annoying for testing.
They flicker continuously very fast! With a slight pause milli-second every second.
Initially I cleaned the LVDS cable and connected to the T-Con and then it worked fine for 3 weeks but not sure if this was just co-incidence.
I tested each half by removing the first the left flex from...-
Channel: Troubleshooting Computer Displays
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by GobonTalBzarI have a Samsung UE46F6500 SDXZT with the bottom half of the screen showing purple lines and sort of a lower resolution. These lines appear and disappear in response to motion on any part of the screen. For example they will appear below any popups (no signal etc) and moves sideways to stay below the location of the popups. Screensh1.jpg and Screensh2.jpgshows the issue and Samsung_Problem.zip is a video of the issue as it happens.
I've tried replacing the TCON board but nothing changed. Wiggling the connections doesn't seem to affect anything on screen.
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