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Search: Posts Made By: neilc6
Forum: Troubleshooting TVs and Video Sources 08-06-2022, 01:26 PM
Replies: 2
Views: 95
Posted By neilc6
Authorized Repair Center Charges

Prices in CAD. I had a nice old couple bring me their LG 42LN5700 for backlight replacement with a classic flash of logo on power up. Quoted them $80 since new strips are only $20 and would take me...
Forum: Troubleshooting TVs and Video Sources 08-04-2022, 09:20 PM
Replies: 2
Views: 103
Posted By neilc6
Re: Vizio M60-C3 powers on, perfect logo, turns off

https://www.ebay.com/itm/124879327951?mkcid=16&mkevt=1&mkrid=711-127632-2357-0&ssspo=n0VJJ_9SRFi&sssrc=2047675&ssuid=7uxv7pDbTa2&widget_ver=artemis&media=COPY
Forum: Troubleshooting TVs and Video Sources 08-02-2022, 11:26 PM
Replies: 5
Views: 106
Posted By neilc6
Re: Samsung LN46A850 - Displays image that degrades, then reboots

Possibly bad C102 on main board. https://www.badcaps.net/forum/showthread.php?t=45913
Forum: Troubleshooting TVs and Video Sources 07-29-2022, 11:12 AM
Replies: 20
Views: 320
Posted By neilc6
Re: LG 55UB8500 no picture.

Tv turning on with backlight but no picture, tcon board is first suspect. Connect one side at a time between tcon and panel to see if you get half an image. If you do, there is a panel short on the...
Forum: Troubleshooting TVs and Video Sources 07-25-2022, 10:53 PM
Replies: 8
Views: 276
Posted By neilc6
Re: Samsung LE37B650T2W, white picture

I've done AS15 or tcon swaps with whitewashed video on these old LCDs before with no change so assumed the problem was in the panel.
Forum: Troubleshooting TVs and Video Sources 07-25-2022, 09:28 PM
Replies: 38
Views: 744
Posted By neilc6
Re: Samsung UE46EH5000 - Flashing red light but not turning on

Bad backlights can cause them to flash in Samsungs. First suspect with any backlight issue.
Forum: Troubleshooting TVs and Video Sources 07-23-2022, 08:43 PM
Replies: 3
Views: 205
Posted By neilc6
Re: Samsung LCD TV Power Supply Troubleshooting (Please Help)

When you can get the TV to turn on, what is your backlight setting? If it is at max (20/20) I would turn it down to around 8 and display a pure white test image and see if you have dark spots to see...
Forum: Troubleshooting TVs and Video Sources 07-20-2022, 02:59 PM
Replies: 11
Views: 266
Posted By neilc6
Re: samsung un50nu7100f

Tape cutoff much more difficult on tvs with no separate tcon. Only seen it successful on one youtube video.
Forum: Troubleshooting TVs and Video Sources 07-20-2022, 12:13 AM
Replies: 11
Views: 266
Posted By neilc6
Re: samsung un50nu7100f

Line looks horizontal. Check the YouTube video in Update 2. https://techhometravel.com/repair-of-flickering-double-image-horizontal-
Forum: Troubleshooting TVs and Video Sources 07-19-2022, 05:34 PM
Replies: 2
Views: 137
Posted By neilc6
Re: Insignia ns50d510na19 tp.ms3553.pc906 power schematic

If you have no backlight, you likely have bad backlights especially with that model. The protection circuit shuts down the backlights when the sensed voltage is not within expected range. If you...
Forum: Troubleshooting TVs and Video Sources 07-18-2022, 08:01 PM
Replies: 13
Views: 396
Posted By neilc6
Re: Sony XBR-65X850E power supply board diode replacement

Static vertical lines are damaged panels. Google Sony tcon training manual.
Forum: Troubleshooting TVs and Video Sources 07-12-2022, 07:14 PM
Replies: 5
Views: 158
Posted By neilc6
Re: FUNAI/SANYO FW55D25F Shuts Down Randomly

Is the backlight shutting off or the TV? What happens when you turn down the backlight level?
Forum: Troubleshooting TVs and Video Sources 07-10-2022, 12:49 PM
Replies: 4
Views: 305
Posted By neilc6
Re: Sony KD-55X7000G black vertical bar

The flex cables that run from the panel boards to the panel control the vertical sections on the screen. If the cable or chip on flex (COF) embedded in the cable has failed, you will see an issue in...
Forum: Troubleshooting TVs and Video Sources 07-06-2022, 09:07 AM
Replies: 3
Views: 198
Posted By neilc6
Re: 42LN5300 backlight randomly blacks out

Backlight issues are almost always the LEDs themselves especially LN, LA, LB or LF series. When intermittent, the voltage can fluctuate and trip the protection circuitry. One bad LED you may not be...
Forum: Troubleshooting TVs and Video Sources 07-01-2022, 12:29 AM
Replies: 4
Views: 159
Posted By neilc6
Re: LG 55LB5900 backlight flashing

Both LB and LF series flash with backlight issues. https://techhometravel.com/lg-ln-series-bad-led-backlights/
Forum: Troubleshooting TVs and Video Sources 06-30-2022, 03:23 PM
Replies: 17
Views: 3,127
Posted By neilc6
Re: Post your Samsung NU model series backlight failures and diffuser melt-downs here

Showed up in my Aliexpress recommendations.

https://www.aliexpress.com/item/1005004049744840.html
Forum: Troubleshooting TVs and Video Sources 06-26-2022, 06:59 PM
Replies: 6
Views: 333
Posted By neilc6
Re: Seiki SE42UMT, Standby Light, No power On

If you have standby light and standby voltage and the TV doesn't turn on, the main board is suspect. Could be eeprom but don't see it in your pics. If you can find the eeprom, you can try freezing...
Forum: Troubleshooting TVs and Video Sources 06-26-2022, 09:55 AM
Replies: 5
Views: 313
Posted By neilc6
Re: LG 47LN5400 Replacement backlights

All the LN strips on aliexpress and even shopjimmy are substitute strips. I stick to one or two sellers (not the cheapest) and turn down the backlight to around 55% on ALL sources and apps for smart...
Forum: Troubleshooting TVs and Video Sources 06-16-2022, 04:12 PM
Replies: 17
Views: 3,127
Posted By neilc6
Re: Post your Samsung NU model series backlight failures and diffuser melt-downs here

Just did a UN43NU6900F. Strips look like they use the more standard rectangular LED vs the high temperature, high heat square ones that tend to melt the light spreading panel. No panel damage on...
Forum: Troubleshooting TVs and Video Sources 06-13-2022, 03:32 PM
Replies: 8
Views: 368
Posted By neilc6
Re: Insignia FireTV NS-50DF81NA19 backlight on but no image

With panel boards, shorted chip caps will be a likely suspect if a new tcon didn't fix it. There is a youtube video of a guy isolating the short with a milliohmmeter. ...
Forum: Troubleshooting TVs and Video Sources 06-13-2022, 08:25 AM
Replies: 15
Views: 527
Posted By neilc6
Re: LG 42LA6130 did not turn on

Replace them all with new. They all have wear and will eventually fail. Lots of sellers on ebay and Aliexpress.
Forum: Troubleshooting TVs and Video Sources 06-12-2022, 03:54 PM
Replies: 15
Views: 527
Posted By neilc6
Re: LG 42LA6130 did not turn on

LA series is similar to LN series which has high rate of failure of LED backlights. Your original power supply likely was turning on with the backlights shutting down into protection mode or an open...
Forum: Troubleshooting TVs and Video Sources 06-09-2022, 08:36 PM
Replies: 24
Views: 7,103
Posted By neilc6
Re: Samsung UN60EH6003F, no picture, no T Con board, boot loop, etc.

I had sent my original board for repair but that part number likely didn't have that IC.
Forum: Troubleshooting TVs and Video Sources 06-06-2022, 10:06 PM
Replies: 7
Views: 276
Posted By neilc6
Re: Thomson TV no backlight again

This fix is like disconnecting your check engine light in your car if it comes on. Problem solved!
Forum: Troubleshooting TVs and Video Sources 06-06-2022, 05:25 PM
Replies: 15
Views: 1,368
Posted By neilc6
Re: Toshiba 50L5200U

LEDs are wired in series like a string of Christmas lights. It only takes one bad LED to shut down the string or to kick in protection shutdown. All the LEDs have wear and will eventually fail...
Showing results 1 to 25 of 500

 
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