Hi guys purchased a tv from someone and it had a good few bulging caps so i replaced and tv started up no problem. However there is a few lines running down the screen on the left hand side and just one line on the right side. Can this be fixed ?
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Re: lines on LG 50PG3000
Unfortunately it is a reasonably common problem on these models and is due to a bad plasma panel. It is not fixable. That being said, I had no difficulty selling a 42PG3000 on with a similar fault. I got about 30% less than normal, but still was able to make a profit, so not so bad in the end.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. -
Re: lines on LG 50PG3000
Sorry meant to add a picture.Attached FilesComment
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Re: lines on LG 50PG3000
Hmm :/ that is pretty bad.
The worst I got so far is a single line
https://www.badcaps.net/forum/attach...8&d=1397686557
https://www.badcaps.net/forum/attach...6&d=1397686557Please 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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Re: lines on LG 50PG3000
Hi,
First, this is my first post on this forum...
I have exactly the same problem as Mikeyboy2007.
After repairing the PSU for capacitors (C232, C233, C234, C235, C236 & C241); the tv starts without problem but I have 5 vertical lines on the full height of the image.
I used a software (http://www.webalice.it/fulvio.cornetta/) to generate signals for tv and we can see that the lines do not appear if the image is green or red (see photos ).
Is this problem also a faulty plasma screen?
Thank you for your help.
MaximiliusAttached FilesComment
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All left and right refers to looking from rear of TV (or looking from front with TV upside down)- TV came with vertical bars and no image. Found faulty TVS on left buffer board. Also replaced T-Con (may have damaged the original while hot air removing components, board has slight warp) and have full image but few horizontal lines on the screen. Some of the lines appears to be 2 pixel tall while others are 1 pixel tall.
- Disconnecting left and right buffer board potentially reveals problems on both sides with different signals (unless this T-Con require jumper like Samsung FB_TRDY1&3) Fault
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Hello, I have a screen in where sometimes when I open it pop-up vertical multicolor lines (I would say the most of them are green). If I tun off and turn on the screen the lines dissapear or if I leave open the screen after approximately five minutes the lines gone. I measured the below voltages on the main PCB and on the T-CON board and the voltages are the same when it doesn’t display the vertical lines and when it displays the vertical lines. Also, I cleaned all the connectors very good with IPA. I moved back and forth the connectors and the COF tabs but the vertical lines didn't displayed... -
- Prior owner tried a replacement main board. No difference.
- Samsung 2x red blinking standby LED = panel fault
- Jumpered FB_TRDY_1 (pin 1 CN1300 left. main tcon->left side buffer boards) and FB_TRDY_3 (pin 95 CN1301 right. main tcon->right side buffer boards) This allows testing individual T-Con (on main board) connection to panel on this Samsung. Found fault on left side (viewing from rear of TV)
- Each side has 2 buffer boards, disconnected left side flex between 2 buffer boards. Fault is on the left most board.
- Tape masking eventually isolated to CN1300 pin 15 (CKV4_GOA) Display
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I have here a Magnum IA.100 which belongs to my parents.
The unit powers on & when the relay kicks in, you get a pop from the speakers (this might sound weird but is usual behavior for this amp). However, you get nothing coming through it from any of the inputs & no pops and crackls from any of the controls.
Because of the sound from the speaker when the amp turns on I have assumed that the output section probably works but I could be wrong & I'm not sure how to test that side of things further.
What Ive done........01-01-2025, 01:26 PM -
Hello,
First of all I'm new here. While looking I found this amazing forum and I'm very happy I did. Now for my problem:
I picked up a Samsung UHD QLED QE50Q67TAU from 2021 for $50 knowing it was defective. The seller said it had black lines and that it could get stuck in boot randomly.
I've tried a new power cable, hard reset, opening up and jiggling all cables, pressing everywhere to see if I get a reaction but I've gotten nothing. I've tried the tape method but I've only managed to get the lines worse.
I'm no expert but I've done the tape...
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