Samsung txk2754 menu won't show up

t-con board small board attached back of screen replace that.

hi Elle924.
this is all i could find out.
What kind of panel do you have - a LED or CCFL one? If it's CCFL then check the inverter board. The main board might be fine (changing the brightness settings changes the signal to the inverter board) but if the inverter board is faulty somewhere then the problem you described may be caused by it
or try this forum.
Why is my tv extremely bright Solved Other Consumer Electronics
or this one might help you.
White too bright in picture on Samsung LCD TV Forums
or even this link.
SAMSUNG LCD TV very bright screen Google Search

You need to replace the inverter board thats what preventing the backlights from lighting up so you can see the picture. You can get the inverter board from www.tvrepairworld.com

This tv have a problems call convergence,it dead.The tv convergence board the 2 STK convergence ICS and some or all it resistors are dead.These parts must be replaced to solved convergence problems.The shop will cost u $300-350 for parts and labors.

This could be an issue with your DMD board or your Video Board. Go to the menu, if the white spots show on the menu, the issue is with your DMD board, but if they don't show, the issue is with your Video board.

Replace Flyback

SAMSUNG Convergence Problem


It looks like blue convergence. Look at menu, select convergence and see if blue top is bent down on convergence adjust screen. Probably won’t adjust.

Some Samsungs have convergence IC’s on a separate convergence board in the back of the TV. Others have the IC’s mounted on the main deflection board. Either way the board has to be removed to get at the dud IC’s and associated burnt resistors.

You remove the appropriate board, determine if any resistors are burnt or damaged, replace any burnt or out of tolerance resistors, replace 1 or 2 IC's and re-install the board.

Now you have to adjust it to look like new.

If the unit has not been misadjusted and everything is OK now, running the auto focus may put the picture back to it’s previous stunning quality, as it was before IC failed.

If after self or autofocus it is still misadjusted noticeably, try the customer convergence adjustments. Operators’ manuals are available on web through searching.

If convergence can not be adjusted properly, you messed up chip install or resistors may be wrong value or open; or it needs major adjustment.

If you live around Calgary, Alberta try me instead:

http://calgaryconvergencerepair.weebly.com/convergence-explanation.html


Or try to the find the repairperson part of this website (on the Homepage) and search postal code. Maybe you will be lucky and someone from your area is listed for Projection TV repair.

Most rookies doing this job will cause damage and not be successful. They will pay double for someone to fix their mess or end up scrapping the TV. It is not a simple task. It is more difficult than batteries on a remote.

Good Luck

easyab

this is due to high voltage section failure.

do not try to put it on for no. of times.

call skilled tech to fix it.

good luck.

You would have to contact the manufacture. a better solution would be to take it to a shop and have them repair the board. It would involved using acitate glue and the bridging the wire traces back with wire bridges (jumper wire soldered to the traces). If you are not able to do this on your own a local shop could do the job.

check captions on your menu settings it has caption 1 and 2 if it is not set on caption it could be on text which cause the black box to come on the screen turn off every thing on the caption menu.if that does not work then take you set to a tech to have it reset then it could be your eprom or your video circuit.good luck.