Question about Samsung LA40R81BDX 40 in. LCD TV

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Screen picture flicks on and off on start up

Screen/ picture flicks on and off at start up , eventually no picture

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Posted on Feb 05, 2010

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Posted on Jan 02, 2017

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Flicking screen on Samsung UN60FH6003F, replaced main & power board and LSVD cable.


Check out the inverter board. It supplies the backlighting on screen so you see picture. If it is messed up it could be responsible for the flashing. Assuming you see a normal picture in between flashes!

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Sounds like you may have some capacitors going bad. If it is a high end TV it may pay you to take it to a repair shop.

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SCREEN IS BLACK. THE ON LIGHT IS NOT COMING ON


Check the power cord, ensure the fuse in the cord plug has not blown.
Then check the connections at the plug / socket, make sure they are tight and there is no smell of burning.
Try with a new power cord
Those steps will eliminate simple problems and often, these are the most common.

After that, the issue is probably with the power board capacitors or switch. Eventually the capacitors which power up the screen go, this normally happens over a short period of time, such as the screen flicking on and off and then working after it has cooled down,but eventually, they finally blow.

It may be worthwhile taking it to a tv repair place to check this out

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1 Answer

Same problem with sony ke-p42m1


this might be a bad or temp sensetive tuner, why don't you try hooking up a dvd player to your video jacks and see if the problem is present while watching a dvd disc. If it doesn't then you may have to replace the small signal board(where the cable or sat feed hooks up to the tv).

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2 Answers

FLICKING


hi what you need to do is get onto the tvs menu and turn off the auto function that selects best picture like widscreen 16.9 the screen ratio if you put it on one of the other settings other than auto you wont have this problem just try each setting untill you have correct picture so as it fills the screen.
Let me know if you need further asssistance ok

Feb 29, 2008 | Toshiba 32AF62 32" TV

1 Answer

My 50SBX70B flicks than lost the power


Symptom: NO HOR SYNC
Cause: DEFECTIVE I008
Symptom: No Horizontal Sync. When PinP is called up, main picture may lock up for a 8 moment, then it goes back out of sync.
Cause: I008 defective (Sync Switch)

Jan 15, 2008 | Hitachi 50SBX70B 50" Rear Projection...

2 Answers

Sony ke-p42m1


dunguard, How long have you had this for, zazwpx

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