Question about Samsung HCN653W 65" Rear Projection Television

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No Picture - Sound

Picture went out and the timer light started blinking. I turned off the tv, unplugged from the power outlet turned on the tv until the power drained and the timer light went off. Plugged it back into the outlet and turned back on. You can hear the tv "turn on" beep. The sound comes on, but picture never comes up. Then timer light starts blinking again and there is no sounds. Does anyone have any ideas on what's causing the issue?

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  • Dave Graham May 31, 2008

    Gozar - Comment: Had an issue with convergence last year. Experts recommended replacing the convergence modules...which required soldering. I couldn't do that so I replaced the entire board they were on. The cost of the board was cheaper than ordering the modules and paying a professional to replace them. A board I can replace, but not individual parts on a board. Anyway, I have to old board still. Tried reinstalling the old part, BP95-00142P, to see if it was an issue (another site suggested replacing that part). I'm still having the same issue...my old convergence issue did not come back. In the interest of saving time, I did use all of the cords from the new one when I tested the old. So, unless it could be an issue with one of the cables, I don't think it's the amp module.

  • chef_brown07 Jun 02, 2008

    Same...Picture went out and the timer light started blinking. I turned off the tv, unplugged from the power outlet turned on the tv until the power drained and the timer light went off. Plugged it back into the outlet and turned back on. You can hear the tv turn on, but picture never comes up. Then timer light starts blinking again and there is no sounds. Does anyone have any ideas on what's causing the issue and how to fix?

  • Dave Graham Jun 06, 2008

    Had a repair man come out to look at my TV. The TV is powering up, sensing a problem and shutting back down...and then cycling through again. He tested the voltage on the circuitry through the back of the TV. Then, he took off the front of the TV and turned up something. A green horizontal line appeared on the screen, apparently there was supposed to be something vertical. Said the issue was with the Vertical Deflection...I did some research and turned up the term Vertical Collapse as well. He did some more work but could not resolve the issue today. Said it might take getting the TV to his shop to do further testing and investigation, said it very difficult to work on the TV in someone's home because of the layout and sensitivity of the circuits.



    He said worse case scenario was he would have to replace a board (sorry, I didn't write that down and can't recall now).



    He was going to do some more research into the issue to see if anyone has specific suggestions.

  • Karl Nitz Dec 16, 2008

    My HCN653W will power up, I get the power on tone and the screen comes up for about 3-5s, then it shuts off and the timer/power light blinks. I was also told it was an issue with "vertical resolution". I've made other TV repairs in the past (replacing convergence amplifier ICs, flybacks, etc.) - just looking if someone can identify which component is the culprit to replace for these symptoms. I'm also trying to identify a source for the schematic and service manual.

  • Anonymous May 02, 2009

    I have the samsung hcn653w and when I turn it on I get a grid of green lines.Is this a convergence problem only? and if so can I get away with just replacing the sub deflection board?

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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!

Posted on Aug 04, 2008

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