No picture Samsung LE40R88BD BN41-00813E

[lin4sm]

I have Samsung LE40R88BD TV. No picture.
Problem have been isolated to the main board. With other main board TV is working fine. No problems at all.
So with this main board have sound, backlight is working. No picture. Totally black screen. 12V to T-Con board is supplied.
Where should I be looking for problem?
Attached two photos of the main board.
BN41-00813E BN94-01472M.

[Dumah Brazorf]

Re: No picture Samsung LE40R88BD BN41-00813E

Have you tryed changing input source? from hdmi, vga or scart?

[lin4sm]

Re: No picture Samsung LE40R88BD BN41-00813E

Haven't tried vga, do not have anything to connect right now. Other sources SCART and HDMI are same - blank screen.

[lin4sm]

Re: No picture Samsung LE40R88BD BN41-00813E

Issue solved. Just now remembered that I have not replaced eeprom IC1803 chip just in case.
Soldered new blank chip in and its working fine!

[ReeceyBurger123]

Re: No picture Samsung LE40R88BD BN41-00813E

Good work also you should replace capacitors on the psu.

[budm]

Re: No picture Samsung LE40R88BD BN41-00813E

I am confused about installing BLANK EEPROM and it fixed the problem.

[ReeceyBurger123]

Re: No picture Samsung LE40R88BD BN41-00813E

I am confused about installing BLANK EEPROM and it fixed the problem.

Take a step back and have a think about these boards bud

[budm]

Re: No picture Samsung LE40R88BD BN41-00813E

Well?

[budm]

Re: No picture Samsung LE40R88BD BN41-00813E

I found the answers.
https://www.badcaps.net/forum/showth...ghlight=IC1803
https://www.badcaps.net/forum/showth...ghlight=IC1803
https://www.badcaps.net/forum/showth...ghlight=IC1803

[ReeceyBurger123]

Re: No picture Samsung LE40R88BD BN41-00813E

I found the answers.
https://www.badcaps.net/forum/showth...ghlight=IC1803
https://www.badcaps.net/forum/showth...ghlight=IC1803
https://www.badcaps.net/forum/showth...ghlight=IC1803

Thats it matey it rewrites its self, I have even stole the chip off a 23" Sammy and stuck it on a 40" board and its worked fine same board

[budm]

Re: No picture Samsung LE40R88BD BN41-00813E

I wish VIZIO do the same as SAMSUNG, but they don't.

[ReeceyBurger123]

Re: No picture Samsung LE40R88BD BN41-00813E

Its only on the Borde boards they stopped doing this I think two years later when it all become flash Ic and Ic embedded shit

Also yeah wish Vestel (basically Uk Vizio and Funi) would do this as well

[lin4sm]

Re: No picture Samsung LE40R88BD BN41-00813E

Power supply is fine. All caps are within range and ESR still good on them.

Main board programs blank eeprom chip with default settings.

Somehow forgot to do this on this board and was scratching head for solutions.

Newer Samsungs do not have this easy fix any more.