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Search: Posts Made By: neilc6
Forum: Troubleshooting TVs and Video Sources Today, 05:29 PM
Replies: 4
Views: 51
Posted By neilc6
Re: Sharp LC-43CUG8461KS

Is one side good? If the TV has a tcon board and one side is good, you can try the tape cutoff method.

https://techhometravel.com/repair-of-flickering-double-image-horizontal-lines-on-a-tv/
Forum: Troubleshooting TVs and Video Sources Today, 01:08 AM
Replies: 5
Views: 121
Posted By neilc6
Re: LED Samsung UE40J6272 flashing red led 6x

If you look at the silkscreen of the power supply board, the supply voltage is 8V in standby and boosts to 13V with a PS-ON signal from the main board. Monitor the PS-ON signal and if it is dropping...
Forum: Troubleshooting TVs and Video Sources 05-15-2021, 07:19 PM
Replies: 4
Views: 82
Posted By neilc6
Re: LG model 50UM6900PUA. Need to find led strips.

https://www.shopjimmy.com/insignia-lb-pm3030-gjbby504x8abl2-l-t-r-t-led-backlight-strips-8/

Matches your panel number. Substitutes in stock.
Forum: Troubleshooting TVs and Video Sources 05-15-2021, 03:00 PM
Replies: 2
Views: 89
Posted By neilc6
Re: Can I use a Samsung 4K LCD panel in a 4K TCL TV?

Likely not compatible. Though some brands use the same panel, odds of random TVs with same panel are close to zero. If they use the same tcon board, they use the same panel but newer models don't...
Forum: Troubleshooting TVs and Video Sources 05-15-2021, 01:22 PM
Replies: 5
Views: 87
Posted By neilc6
Re: Samsung TV - no backlight, except when mainboard disconnected

Forcing the backlights on confirms both your backlights and power supply are likely good. If the TV turns on and off, the main board is likely good.

Second test is to power up the TV with only...
Forum: Troubleshooting TVs and Video Sources 05-15-2021, 01:20 PM
Replies: 5
Views: 121
Posted By neilc6
Re: LED Samsung UE40J6272 flashing red led 6x

Samsung TVs do not have blink codes and the front LED flashes when the TV is booting and goes out when the TV is in an ON state. You should be able to turn the TV off. If the TV is on and there is...
Forum: Troubleshooting TVs and Video Sources 05-15-2021, 10:58 AM
Replies: 5
Views: 87
Posted By neilc6
Re: Samsung TV - no backlight, except when mainboard disconnected

I've seen bad tcon boards that cause no video and no backlight in H model years. If the TV turns on on and off with no backlight and no video and backlights come on when forced, I would suspect the...
Forum: Troubleshooting TVs and Video Sources 05-06-2021, 10:14 PM
Replies: 11
Views: 360
Posted By neilc6
Re: Samsung UN48H6350AF Black Screen, No Sound

Tcon voltage typically comes from a power supply and is switched through a FET with a control signal from the processor on the main board. Either the control signal is not going high or the FET is...
Forum: Troubleshooting TVs and Video Sources 05-06-2021, 10:08 PM
Replies: 1
Views: 88
Posted By neilc6
Re: LG 65uh5500 screen issue

You can rip off the flex ribbon on the leftmost side (on the bottom) to block signals to that section but looks like there is other damage as well.
Forum: Troubleshooting TVs and Video Sources 05-04-2021, 12:58 PM
Replies: 4
Views: 165
Posted By neilc6
Re: Samsung ue32h5500 backlight but no picture

If you have image on one side, you can try the tape cutoff method on the bad side. https://techhometravel.com/repair-of-flickering-double-image-horizontal-lines-on-a-tv/
Forum: Troubleshooting TVs and Video Sources 05-03-2021, 08:49 AM
Replies: 49
Views: 1,806
Posted By neilc6
Re: Samsung UN48H6350AF Black Screen w/ sound

If you can get video on one half of the screen, you can try the tape cutoff method. If TV turns on with no video and no backlight but the backlight works with main cable unplugged, you can try...
Forum: Troubleshooting TVs and Video Sources 04-24-2021, 06:07 PM
Replies: 10
Views: 375
Posted By neilc6
Re: TCL 43" Model 43S525

The other issue you may encounter with Roku TVs is the default backlight settings will burn them out so you should turn it down.
...
Forum: Troubleshooting TVs and Video Sources 04-18-2021, 10:12 PM
Replies: 10
Views: 375
Posted By neilc6
Re: TCL 43" Model 43S525

If you get a good image on one side, it means the tcon is good and there is a fault on the bad side. You can try blocking some pins from the tcon on the bad side with the tape cutoff method.
...
Forum: Troubleshooting TVs and Video Sources 04-16-2021, 10:20 PM
Replies: 5
Views: 165
Posted By neilc6
Re: Lg 55lw5600

LE, LV, LW and LS series all have bga issues on the main board. You can search ebay for repair services.
Forum: Troubleshooting TVs and Video Sources 04-16-2021, 10:18 PM
Replies: 10
Views: 375
Posted By neilc6
Re: TCL 43" Model 43S525

Backlight but no video tcon is first suspect and boards are usually fairly inexpensive. You can try connecting one side at a time between tcon and panel. If one side is good, you have a fault in...
Forum: Troubleshooting TVs and Video Sources 04-14-2021, 10:19 PM
Replies: 103
Views: 2,499
Posted By neilc6
Re: Vizio E65-E3 Dead after backlight replacement

When doing backlight replacements, I always turn the TV on with the panel disconnected to confirm they are lighting up before reassembly. Also check after installing the diffuser panels to check for...
Forum: Troubleshooting TVs and Video Sources 04-14-2021, 09:07 PM
Replies: 29
Views: 634
Posted By neilc6
Re: LG 49UH668V Blank screen

I have 120 orders off Aliexpress the majority which are TV parts and they have my credit card on file. They are just a marketplace like ebay with thousands of sellers. You can find tcon boards and...
Forum: Troubleshooting TVs and Video Sources 04-14-2021, 08:57 PM
Replies: 103
Views: 2,499
Posted By neilc6
Re: Vizio E65-E3 Dead after backlight replacement

Does it attempt to turn on? Try connecting only one side at a time between the tcon and panel and see if the TV turns on with half a screen.
Forum: Troubleshooting TVs and Video Sources 04-14-2021, 09:17 AM
Replies: 29
Views: 634
Posted By neilc6
Re: LG 49UH668V Blank screen

Do you have 4 rows of strips? These are the style that also turn blue if you run them at max and super tiny. They are only $20 - $30 USD on Aliexpress and you may find similar pricing on ebay.
...
Forum: Troubleshooting TVs and Video Sources 04-12-2021, 08:00 PM
Replies: 3
Views: 126
Posted By neilc6
Re: TCL 65S4 Backlight Troubleshooting

Very difficult to disassemble a 65 inch panel without damaging it. Suction cups may help. All tvs are very similar. Differences will be if screws are used versus clips and if double sided tape is...
Forum: Troubleshooting TVs and Video Sources 04-12-2021, 06:13 PM
Replies: 3
Views: 126
Posted By neilc6
Re: TCL 65S4 Backlight Troubleshooting

Backlight issues are almost always caused by bad backlights. Protection circuitry is kicking in to shut them down because an error is detected. ...
Forum: Troubleshooting TVs and Video Sources 04-11-2021, 10:47 AM
Replies: 13
Views: 416
Posted By neilc6
Re: Samsung UN55J6200AFXZA Lost picture and sound.

You need to fix one problem at a time. Audio is totally unrelated to the backlights. There are a lot of reasons for no sound - volume set to 0, muted, wrong input, audio set to external. You need...
Forum: Troubleshooting TVs and Video Sources 04-10-2021, 05:06 PM
Replies: 13
Views: 416
Posted By neilc6
Re: Samsung UN55J6200AFXZA Lost picture and sound.

If you have no backlights, you likely have bad backlights. https://techhometravel.com/lg-ln-series-bad-led-backlights/
Forum: Troubleshooting TVs and Video Sources 04-09-2021, 03:44 PM
Replies: 5
Views: 240
Posted By neilc6
Re: Sony KDL 46HX900

Your TV is indicating it has bad backlights and they are likely failing under load. You can try turning down the backlight level and see if they stay on.
Forum: Troubleshooting TVs and Video Sources 04-06-2021, 10:17 AM
Replies: 1
Views: 185
Posted By neilc6
Re: Whats this fault

Multi colored lines could be tcon. Sony tcon training manual https://dokumen.tips/documents/sony-t-con-training-manual.html
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