I have a samgung hcn653w. It has no picture, it sounds like it trying to turn on, but nothing on the screen. Any ideas?

I will replace the T-CON board first.

okay that sounds like a problem in the horizontal circuit and vertical circuit.the module of those section wants to be replaced.only a tech can do the repair.look for a tech to repair your tv

replace the board or convergance IC. IE... deflecton/convergance

Hello,

The flex of your phone is bad since it gives blank screen.

All you need to do is to change the flex of your phone and you will see that your phone screen will display.

Take care.

Replace Both of your STK ICs Big black ics will have part number on them example STK392-110 also there is 2 resistors 2.7 ohms near STK replace them Call Mats for Parts 1-800-628-1118

Chances are that the convergence amps are bad.
If those are mounted on a separate board, replacing the board would be the easiest thing to do. Running the magic focus or touching up the convergence in the customer menu may be required.

Hi.

Either the stk convergence modules or the vertical ic have failed.
replace the 3 parts and it should fire up again.

I just had this problem fixed. In my case, it was because the insulation on the CRTs was cracked, and when it would warm up, the shielding would separate and would let 5000 volts arc across the main board. This, obviously, damaged the board. The tech didn't catch the arcing right away, so they replaced the main board twice before they used a high-temp RTV to patch the insulation.

The power-cycling was a result of the damaged board.

The point of this story is that the broken part may be a symptom of the real problem.

I hope this helps someone!

If the picture is reduced in size all the way around, then you are looking at a power supply issue. That would also explain it shutting down.

My first guess is it kind of sounds like a convergence board problem i know they had some service bulletins on them. hope that helps oh and convergence boards arent exactly cheap and will probably require some soldering