Insignia NS-50DR620NA18 has vertical colored lines, no picture. swapped out tcon board but same issue.
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Re: Insignia NS-50DR620NA18 vertical colored lines no picture
Welcome to Badcaps!
Can you give some history on this TV unit?
- Did this just happen one day?
- Did you get this used?
- What's the ORIGINAL T-CON part number, whats the NEW T-CON part number?Last edited by ngth82; 04-03-2020, 03:56 PM.-Thomas
I'm a hardware engineer focused on networking equipment for my day job. I void warranties and fix consumer electronics for fun. -
Re: Insignia NS-50DR620NA18 vertical colored lines no picture
Purchased used. Trying to fix. New tcon and old tcon are the same as I made shopjimmy check 55t32-c0f. The menu seems to scroll behind the bars/lines. Can not see though. I think the tv is 3 years old.
Attached FilesLast edited by daxlw; 04-03-2020, 04:18 PM.Comment
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Re: Insignia NS-50DR620NA18 vertical colored lines no picture
TtComment
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Re: Insignia NS-50DR620NA18 vertical colored lines no picture
Any idea if the original owner took this thing apart?
With the back cover removed and the TV on, what happens if you lightly press on the flex cables between the LCD display and the narrow PCBs that connect to the LCD? Does it change the output behavior?
(Example picture attached).Attached Files-Thomas
I'm a hardware engineer focused on networking equipment for my day job. I void warranties and fix consumer electronics for fun.Comment
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Re: Insignia NS-50DR620NA18 vertical colored lines no picture
with my experience, vertical colored lines are cause by main board failures. tcon board issues are usually either no picture or half of a good picture. from your picture however, they didnt look like colored lines i usually see. being that you replaced the tcon, that leaves the main board and the display panel itself. main board is cheaper, id start there.Comment
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Re: Insignia NS-50DR620NA18 vertical colored lines no picture
I applied pressure to the PCBs and there was not a change.Comment
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Re: Insignia NS-50DR620NA18 vertical colored lines no picture
Replaced main board and tcon. same issue. possible new tcon is bad?
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Re: Insignia NS-50DR620NA18 vertical colored lines no picture
Vertical lines are usually signs of a bad panel. You can try powering up one side of the screen at a time by disconnecting the ribbon cable and see if one side shows a good picture.Comment
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Re: Insignia NS-50DR620NA18 vertical colored lines no picture
yes. Half the panel works with one side ribbon off.
Is it worth fixing?Attached FilesComment
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Re: Insignia NS-50DR620NA18 vertical colored lines no picture
What do you get when you do the same to the other side??Comment
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Re: Insignia NS-50DR620NA18 vertical colored lines no picture
I get the colored vertical lines on that halfComment
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Re: Insignia NS-50DR620NA18 vertical colored lines no picture
Did you remove the metal frame of the LCD panel assembly to get the tab bonding board (as shown on post 5) and inspect them? Right now the problem is the LCD panel not T-CON or main board.
Can we the whole backside of the TV showing all the boards?
Is the tab bonding board located on the top or the bottom edge of the LCD panel?Last edited by budm; 04-07-2020, 04:14 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=24809Comment
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Re: Insignia NS-50DR620NA18 vertical colored lines no picture
Check the MLCC caps on the driver board between the tcon and panel for low ohms, ohm mode with tv unplugged from power.Last edited by nomoresonys; 04-07-2020, 04:16 PM.Comment
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Re: Insignia NS-50DR620NA18 vertical colored lines no picture
The narrow pcb's are on the bottom. I pressed them and it did not have any change. I will inspect again. I do not have any way to detect ohms.Comment
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Re: Insignia NS-50DR620NA18 vertical colored lines no picture
Big problem when it comes to testing and finding out what's wrong, I'd grab a digital multimeter from one of the big box stores, about 10 bucks or so.Comment
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Re: Insignia NS-50DR620NA18 vertical colored lines no picture
I will see if I can get one but what would be the steps and likely issues from here and fixes?Comment
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Re: Insignia NS-50DR620NA18 vertical colored lines no picture
There's a ton of posts here regarding that, basically if you find one reading off, involves removing the small MLCC caps on the board one at a time and checking it and rechecking the rest on the board, til you find the right one, they are in series so one bad one can make others read bad. It could also be a different problem on the panel but many times it was just one of those silly little caps at fault.Last edited by nomoresonys; 04-07-2020, 05:12 PM.Comment
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Re: Insignia NS-50DR620NA18 vertical colored lines no picture
Can they be replaced or repaired? What search words would you use on the forum? caps? pcbs?Comment
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Re: Insignia NS-50DR620NA18 vertical colored lines no picture
Well, if you do not have meter to check the resistance of the caps on the tab bonding then you will have bigger problem removing the bad caps and install new caps due to lack of tools and experience.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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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... -
I'm not sure what to do next and came here since y'all helped me fix a 50" plasma TV back in 2014, which is still working!
A friend gave me an Insignia NS-50DR620NA18 50" TV that suddenly developed large vertical lines on it. He said he had no idea what might have caused it and has replaced it with a larger TV. He was going to throw it away.
I did not notice any bulged or leaking caps on any board, the voltages produced by the power supply match the voltage that the pins are marked. The backlight leds are working. I have tried cleaning the ribbon cables... -
Hello,
i order a t-con because i had bad colors on my SONY KDL-40V3000 :
With the new t-con the color are good but there are vertical lines on all the screen :
I've tried the old t-con and it returned to the initial issue (bad colors but no vertical lines)
Is there a way to fix the vertical lines on the new t-con ?
Thank you for your help
gpo23... -
Hi all, looking for some input on this one. I've been reading the forums for quite some time but this is my first time posting for help.
LG 47LV5500-UA
10 years old
20,000+ hours on it.
Watching TV on it last week and right while I was watching the image suddenly started experiencing the symptoms in pics. Rainbow chromatic vertical lines and alignment issues. The issue is uniform across the entire panel. It does not come and go, the symptoms are stable.
Here is what I've tried so far:
- Factory reset and cycle of picture options.... -
Hi,
I have a Samsung 55inch TV (UN55C6400RF). It has started showing colored vertical lines. I have opened the TV and the power board had one pin (out1-) which is discolored (Model # bn44-00358b). Can this be bad or is it the T-Con board (Model # D03464E0J09B6012066). Any recommendations on diagnosing the issue?
Thanks,
Sanjay
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