Sceptre X505BV-FMDR - Accessing LED Strips

[bigdirkmalone]

Hello,
I have a Sceptre X505BV-FMDR with sound but no picture. Red/Orange LED turns to blue when I turn the unit on and there is sound. I have replaced the main board and power supply to no avail. I'm guessing I need to test the LED strips.

Does anybody have any teardown pictures for Sceptre X505BV-FMDR to get to these strips? Getting at the power supply and such was fairly straight forward but it seems getting to the LEDs will be more difficult.

Thanks in advance!

[budwich]

Re: Sceptre X505BV-FMDR - Accessing LED Strips

you should try disconnecting the cables going from the tcon to panel, one at a time to see if anything happens ... of course, do this without power on.

[bigdirkmalone]

Re: Sceptre X505BV-FMDR - Accessing LED Strips

you should try disconnecting the cables going from the tcon to panel, one at a time to see if anything happens ... of course, do this without power on.

I'm not sure what is "tcon" on this tv. Is it here:


or here?

[budwich]

Re: Sceptre X505BV-FMDR - Accessing LED Strips

you probably need to post a picture of the back with all cards connected and showing... hopefully it will be obvious thereafter.

[bigdirkmalone]

Re: Sceptre X505BV-FMDR - Accessing LED Strips

Mine is the exact tv as in this post https://www.badcaps.net/forum/showpo...2&postcount=20

I can get more pictures if needed. Was hoping somebody could tell me how they got to the LED strips.

[bigdirkmalone]

Re: Sceptre X505BV-FMDR - Accessing LED Strips

Here is a look at the back of the TV with the cover off

[budwich]

Re: Sceptre X505BV-FMDR - Accessing LED Strips

it would appear that this tv does not have a seperate tcon so the test that I suggested won't happen... :-( It normally is a simple test to help narrow down things while you think about other testing. Anyways, you are likely not going to find much specific guides on getting at the leds which is a pretty "interesting effort". Take a look / search for some led replacement videos and / or threads here. You will have to lift the panel itself from the frame, normally done with suction cups especially with larger sets.

Further, you can test the voltages going to the leds to see if anything is amiss.... this is on the power board... there should be labelling along with following the cabling. Have you used a flashlight to check for image. Again, normally "no image" is a sign of an issue other than leds.

[bigdirkmalone]

Re: Sceptre X505BV-FMDR - Accessing LED Strips

Would any of the LEDs going bad cause none of them to light up?

[budwich]

Re: Sceptre X505BV-FMDR - Accessing LED Strips

yes.... but lots of sets that have no backlights (because of problems) have visible images.

Anyway, you can likely find your answer if you check the backlight voltages that are present when the set tries to power on.

[bigdirkmalone]

Re: Sceptre X505BV-FMDR - Accessing LED Strips

What is the recommended "cheap" LED tester consensus of the forum?

[vinceroger69]

Re: Sceptre X505BV-FMDR - Accessing LED Strips

This is the type of led tester a lot of us use
https://www.amazon.com/0-320V-Output.../dp/B01A1479ZS
shop around though as you can pick them up a lot cheaper.

[bigdirkmalone]

Re: Sceptre X505BV-FMDR - Accessing LED Strips

This is the type of led tester a lot of us use
https://www.amazon.com/0-320V-Output.../dp/B01A1479ZS
shop around though as you can pick them up a lot cheaper.

Thanks for the reply. I'll check that one out.

[bigdirkmalone]

Re: Sceptre X505BV-FMDR - Accessing LED Strips

I'm looking for some inexpensive suction cups to use (trying to keep cost down fixing this thing).

[mu2]

Re: Sceptre X505BV-FMDR - Accessing LED Strips

How about suction cups from Harbor Freight?

https://www.harborfreight.com/4-1-2-...cup-40993.html

They even have a dual version.

Don't forget to use a 20% off coupon!

Mike