Badcaps.net Forum
Go Back   Badcaps Forums > Search Forums
Register FAQ Calendar Search Today's Posts Mark Forums Read

Showing results 1 to 25 of 500
Search took 0.01 seconds.
Search: Posts Made By: neilc6
Forum: Troubleshooting TVs and Video Sources 06-11-2021, 02:13 PM
Replies: 10
Views: 434
Posted By neilc6
Re: Busted/cracked Light diffuser plate Samsung UN55NU7100

I just repaired a 55NU and luckily the panel was not melted and I had strips from a newer salvaged one few years ago. If there is melting, it will cause a bigger gap between the panel and LED...
Forum: Troubleshooting TVs and Video Sources 06-11-2021, 01:56 PM
Replies: 10
Views: 434
Posted By neilc6
Re: Busted/cracked Light diffuser plate Samsung UN55NU7100

That panel is typically a part that doesn't get salvaged since this model is the first edge lit model that exhibits melting along the edge. The NU design has the LEDs spaced further apart, along one...
Forum: Troubleshooting TVs and Video Sources 06-11-2021, 11:22 AM
Replies: 12
Views: 1,604
Posted By neilc6
Re: Emerson LC391EM3 - Constant High Pitch Sound

The caps are for filtering noise on the supply voltage rails for each regulator and are placed next to each IC. Will work without it but if you want to replace it, Digikey ships USPS to US with no...
Forum: Troubleshooting TVs and Video Sources 06-09-2021, 05:56 PM
Replies: 1
Views: 60
Posted By neilc6
Re: Sony Bravia XBR-49X705D Blue/Purple patches

After any backlight replacement, turn down the backlight level on all inputs and apps to 50% or lower. I also turn off any ambient light sensor controlled backlight control. On Sonys, you have to...
Forum: Troubleshooting TVs and Video Sources 06-09-2021, 03:24 PM
Replies: 14
Views: 407
Posted By neilc6
Re: Panasonic TX-L50B6B screen "blotches"

Luckily, it looks like this model uses the same strips as LG 50LN series which are a common failure. Otherwise, Panasonic parts can be impossible to find. I have used new substitute strips from...
Forum: Troubleshooting TVs and Video Sources 06-09-2021, 12:58 PM
Replies: 12
Views: 1,604
Posted By neilc6
Re: Emerson LC391EM3 - Constant High Pitch Sound

Trying to find my old thread. I recall I found a service manual and there was a shorted chip cap on one of the regulator rails on the main board. You should be able to measure a short on the supply...
Forum: Troubleshooting TVs and Video Sources 06-08-2021, 12:12 AM
Replies: 3
Views: 96
Posted By neilc6
Re: LG Model 55LW5000 Power Up Issue

Yes LE, LV, LW and LS series all have BGA issues with the main board. You can test by heating it up with a hair dryer before plugging in. Search for repair services on ebay.
Forum: Troubleshooting TVs and Video Sources 06-07-2021, 08:55 AM
Replies: 15
Views: 213
Posted By neilc6
Re: SONY KD65x750F cycles through a white-red-green-blue screen when powered on

Cycling through colors is possibly aging mode. Have seen this in RCA/Haier models. I would google how to disable it.
Forum: Troubleshooting TVs and Video Sources 06-06-2021, 02:43 PM
Replies: 25
Views: 923
Posted By neilc6
Re: Rca rhos651sm

RCAs are low end TVs with bad build quality (double sided tape), limited features (can't set the backlight level or motion smoothing in the menu) and impossible to find new replacement LED strips. ...
Forum: Troubleshooting TVs and Video Sources 06-06-2021, 02:31 PM
Replies: 2
Views: 89
Posted By neilc6
Re: proscan 40ld45q - no pic -no sound - no backlight - blue light turns off

This is an old LCD with CCFL backlights. They do have error shut down and fluorescents do have limited life. Spending any more than $10 on parts or repair is more than the TV is worth. Working on...
Forum: Troubleshooting TVs and Video Sources 06-05-2021, 09:18 PM
Replies: 1
Views: 70
Posted By neilc6
Re: Samsung UN32M4500 has audio but no video

TV turning on with audio and backlight and no video, the tcon is the first suspect. On newer TVs with tcon functions integrated into the panel, there isn't much you can replace. You can check for...
Forum: Troubleshooting TVs and Video Sources 06-05-2021, 07:57 PM
Replies: 2
Views: 85
Posted By neilc6
Re: Samsung-UN39FH5000FXZA-Will Not Turn ON

Very difficult to repair main boards especially since schematics are typically not available. I have never seen a Samsung main board schematic, only Philips or Sonys from service manuals online. ...
Forum: Troubleshooting TVs and Video Sources 06-04-2021, 09:21 AM
Replies: 21
Views: 2,936
Posted By neilc6
Re: Samsung UN58H5202 will not turn on. Help!

Just order the FET from Digikey. Have done this model about a dozen times. I replace the FET first to check the panel for damage before ordering new strips.
...
Forum: Troubleshooting TVs and Video Sources 06-03-2021, 09:51 PM
Replies: 1
Views: 84
Posted By neilc6
Re: Sony KDL55W800C Lines Across panel

Horizontal lines are bad panels. However, if you have a tcon board, you may be able to repair it with the tape cutoff method.
...
Forum: Troubleshooting TVs and Video Sources 06-02-2021, 04:00 PM
Replies: 14
Views: 200
Posted By neilc6
Re: 70" LG TV Backlight turns off (new inquiry)

LEDs will heat up, wear and burn out just like light bulbs. They are typically overdriven and running at their max specs if the backlight level is set to 100% which many of the default picture modes...
Forum: Troubleshooting TVs and Video Sources 06-01-2021, 03:58 PM
Replies: 4
Views: 132
Posted By neilc6
Re: Samsung BN44-00808D power supply board troubleshooting

Naming convention typically has the the letter suffix as the revision and as long as the part number is the same, they should be compatible (fit, form and function). However, I have seen the...
Forum: Troubleshooting TVs and Video Sources 06-01-2021, 07:20 AM
Replies: 4
Views: 132
Posted By neilc6
Re: Samsung BN44-00808D power supply board troubleshooting

Voltages look ok and your main board is suspect. The A13V is supplying standby voltage which gets boosted to 13V with a pwr-on signal from the main board or when you disconnect it due to a pullup...
Forum: Troubleshooting TVs and Video Sources 05-31-2021, 02:41 PM
Replies: 14
Views: 200
Posted By neilc6
Re: 70" LG TV Backlight turns off (new inquiry)

Flash of backlights is a symptom of bad backlights and replacing them all with new and turning down the backlight level is the proper repair procedure. I don't bother testing before replacement any...
Forum: Troubleshooting TVs and Video Sources 05-31-2021, 01:59 PM
Replies: 14
Views: 200
Posted By neilc6
Re: 70" LG TV Backlight turns off (new inquiry)

I replaced the backlights of a 50UH recently. Symptom was flash of LG logo. Replaced all with new. When I tested the old strips afterwards, they all tested good with my LED testers both low...
Forum: Troubleshooting TVs and Video Sources 05-30-2021, 03:50 PM
Replies: 1
Views: 90
Posted By neilc6
Re: Sony Bravia KDL-40v4100 has no picture but has power, backlight, and sound

If the TV turns on with backlight and no video and you have 12V on both sides of the tcon fuse, then the tcon board is suspect. You can try powering the TV with only one side connected at a time...
Forum: Troubleshooting TVs and Video Sources 05-30-2021, 12:04 PM
Replies: 12
Views: 257
Posted By neilc6
Re: Bush led smart tv screen not turning on

You need to more accurately describe your symptoms. Do you have standby light and when you press power, it responds and turns on with no video or no backlight. Or does it not respond to the power...
Forum: Troubleshooting TVs and Video Sources 05-30-2021, 01:32 AM
Replies: 7
Views: 221
Posted By neilc6
Re: LG 42LB650V Screen dark

Looks like bad backlights. Usually causes them to flash in LB series. https://techhometravel.com/lg-ln-series-bad-led-backlights/
Forum: Troubleshooting TVs and Video Sources 05-29-2021, 09:16 PM
Replies: 1
Views: 109
Posted By neilc6
Re: Factory Reset Westinghouse WG55UR4100 Android TV

This TV has an odd interface (Google Android) and I was able to factory reset and get into the settings. I googled the main board part number and found the Element E4STA5017 uses the same main board...
Forum: Troubleshooting TVs and Video Sources 05-26-2021, 03:26 PM
Replies: 1
Views: 109
Posted By neilc6
Factory Reset Westinghouse WG55UR4100 Android TV

I repaired the backlights on this model (symptom flash of backlights, repaired seven bad, part#3P55TA004-A2 new strips available at Shopjimmy) and now the TV is stuck on the home screen. I can only...
Forum: Troubleshooting TVs and Video Sources 05-24-2021, 11:52 PM
Replies: 8
Views: 201
Posted By neilc6
Re: Haier TV Not Turning On--Completely Dead with No standby light

Bad main board can make TV appear dead since the standby light is controlled by the main. You need to check if you have standby voltage going to the main.
Showing results 1 to 25 of 500

 
Forum Jump


Badcaps.net Technical Forums 2003 - 2021
Powered by vBulletin ®
Copyright ©2000 - 2021, Jelsoft Enterprises Ltd.
All times are GMT -6. The time now is 01:36 PM.
Did you find this forum helpful?