Question about Samsung Televison & Video

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I just changed the avi main board on my samsung hdtv nothig is coming on a few beeps then nothing

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Is it beep beep beep beep... you have not got the door for the lamp back in place. took me a few times to get the door back in place there is a little swivel switch on the left side at the top of the lamp housing when the door is off to change the bulb. that needs to be pushed up when the door is fitted. sometimes it miss the plastic lip on the door. I put a dab of glue gun glue on the end of the plastic lip and let it cool and tried it again and it worked... hope this helps also if you have not got the back on put some string round it to hold it up so you can test the tv.,

Posted on Oct 22, 2013

  •  Russ Hill
    Russ Hill Oct 22, 2013

    also to add if you have been having like stars on the tv it the dlp chip gone not the avi board. you can get a replacement from US site for $65 plus posting. they are common to fail easy to change but a bit of a pain to reline the screen.

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Samsung HDTV has sound but no picture


Back - light problem. Check and replace damaged component/s at its back-light inverter board, or replace this board as card basis. If you wish to get some details; check the site linked here. Surf the site with patience. Pull up older posts. It will be best to replace the inverter board as card basis.
http://electro-medical.blogspot.com/

To some model sets; especially LED back-lighted types; the back-light inverter circuit will be part of the main power supply board [SMPS]. In such cases, the power supply board might need replacement. To some models sets, the back-light inverter and SMPS section circuit will be integrated at its main board itself. If so; the main board should be replaced. To some models of sets, all these section circuit will be integrated at its main board. If this is the case, you have to replace the main board

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1 Answer

I replaced avi main board now the tv doesn't work at all the lamp doesn't light at all


check that you have put the door back on the light as has a switch tha the door being put back on must contacted so the tv can be turnd on.

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I have a 50 inch hp-t5054 samsung, it gets vertical lines (green and blue), that run in front of the picture, and vary according to what is playing; sometimes not at all.


The problem with this kind of trouble is that it can be the main board, even the power board or another board causing this.

Trouble shooting requires testing voltage, waveforms with a scope and schematic and signal generator---if only happens from time to time guessing can get expensive.

I had one of these (same brand) under mfr warranty---did it for a few minutes each day or sometimes longer----Samsung Tech assist said change main board and power board and ship to the customer---I advised them problem not there all the time--the reply was if it comes back we will deal with it then.

So much for technical assistance and solid troubleshooting.

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Samsung LCD HD TV Model # LN-S4041D > 4 years old - working fine until today - While watching TV, I heard 2 loud beeps and the TV image was lost - initially frozen pixels and some moments later .......


Th clicking is from the power relay. You will have to open it up, the first place to look will be the power supply module, look to see if it has any bad caps with leaking/bulging tops first, caps can look OK but can be bad due to high ESR.

If you are going to DIY and have proper tools, electronics knowledge, and know safety precaution then please read on:

Please see my basic troubleshooting guide here:
http://www.fixya.com/support/r5093881-lcd_flat_panel_tv_troubleshooting_guide

http://s807.photobucket.com/home/budm/allalbums

http://en.wikipedia.org/wiki/Capacitor_plague

Parts: www.shopjimmy.com

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I turn the power on and the light blinks thre times and thats it. Nothing else. The only thing was DTV was disconnected from it and then, nada.


There only two possible prob.First change the power supply board,dosen't work,must change the main backlight video board,with the old power board?Don't work,than must change both new power supply board and the main backlight video board.Sometime both boards is dead require both that why u must buy both for troubleshoot,have backup board and ready to trouble and repair right away.U can will able to return board the that purcharse for 5% or 10% restocking fee later.

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if you can look on the boards at capacitors ( do a Google of "blown capacitors" ) and then you will be able to see if there are any blown one's on the boards inside, if so some soldering will be needed to replacce the blown one if you can then the issue should go away. if you can not do this a service center can help complete the repair.

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1 Answer

Samsung HLN617W wont come on


Unit does not have a flywheel. Assemblies include lamp, ballast, color wheel, dmd board, light tunnel, main and/or digital and analog pcb as well as power supply. These are all the assemblies in DLPs. The problem you described is usually lamp or ballast, but can also be from dmd or other circuit boards. Make sure lamp cover door safety switch is secure and fully engaged after replacing lamp or removing rear cover. I admit these sets are not cheap to repair. Good luck, Russmann.

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