Question about Hitachi 61SDX01B 61" Rear Projection Television

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My convergence went bad ordered new board stuck it in and now when i try and power up the tv i hear it turn on but no picture or light on the fron but looking in the back i can see some led lights on on the center board do i need to reset something or did i blow a fuse or something?also tried hitting the convergence reset button didnt help.

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  • Hitachi Master
  • 8,457 Answers

Tries take out the board,check same as the old board,reset it by unplug,replug,check it istall correctly.

Posted on Oct 02, 2009

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2 Answers

NO PICTURE OR SOUND JUST A RED LIGHT


DVD MIKE,

do me a favor, if the set is still together, please remove the back, and find the convergence card... it is on the upper right hand side. Unplug the RED plastic plug ONLY. Now try to turn on the TV. If it turns on, but the picture looks completely out of convergence, then yo uneed to replace the 2 STK392-040 IC's and you will have to test all of the 3.9 ohm resistors on the board. You will usually find 1 or 2 bad. let me know what you find.

May 18, 2009 | Akai PT4298HD Rear Projection Television

1 Answer

Will not turn on


check the convergance board for open pico fuses located near the stk amps if they are open the you may have a yolk problem as well. also check the blue gum for cloudy fluid this may be the reason the perfect focus got stuck. if you should get the tv to fire up go to the menu then select reset factory in the convergance menu of the customer menu. this will pull the convegance back to tollorance. the trouble is that when the convegance amps fail customers tend to perfect focus the set and each time they do the convegance memory goes further from tollorance. thus failing the ICs once again. check the pico fuses 1st this is a tell tail sign of those two conditions (yolk, or out of tollorance).

Feb 26, 2008 | Samsung HCM4215W 42" Rear Projection...

1 Answer

Power light is on T.V. is not responding


u may have a bad convergence board stk392-040

Apr 30, 2009 | Samsung HCL4715W 47" Rear Projection...

3 Answers

Samsung HCN4727W


Convergence board shot. Cheap to fix yourself, board has two STK chips on it and is easy to get to.

May 16, 2008 | Samsung HCN4727W 47" Rear Projection...

1 Answer

Akai PT4298HD problemo


I'm not a repair guy, just happen to have one of these TV's. Seems to me that unplugging the Convergence Board removes it from the equation and suggests something else might be the problem. I got most of my help from here and also from this thread:

http://www.tv-forums.com/forum/TV_Equipment_C4/Projection_TV_Forum_F24/Samsung_42_Convergence_problem_P4569/

The samsung TV is the same TV as this Akai, it's just a rebadged Samsung.

One important difference in my TV from yours. I did have a timer light, and with the back off, I could hear it power up when I plugged it in and turned it on. The timer light would flash then it would go off.

When I removed the convergence board, I could clearly see burn marks on the bottom of the board where one of the amps was soldered on. That gave me some piece of mind in ordering the part. I just scanned that other thread but remember some people talking about the power supply failing as well as the main board, you might pursue those avenues.

I wish you luck in fixing this!

Mar 15, 2008 | Akai PT4298HD Rear Projection Television

1 Answer

Tv repair


My Tv was doing the same thing, and I had to unplug the set in order to get rid of the blinking light. And what i did was to turn the power on and as soon as i saw the picture i turned it off, I did this 5 times and on the 6th time I let it power and tv stayed on, however something did happend to my set, i found that my convergence was wacky. Tried to center convergence but i could not center the blue. Turns out, i think the problem is with my Convergence ICs that went bad. I can still watch tv but the Image has blue color shadows and the picture slightly bows inwards from top and bottom. To sum this up, i will need to replace 2 ICs, IC C5AA00000203, and this should fix my problem. I will do this repair myself, each part is about $41..

Let me know what happened to your problem.
Thanks
Tony

Dec 01, 2007 | Panasonic PT-53TW53 53" Rear Projection...

1 Answer

NO POWER TO TV


This sounds like a bad convergence board.
You didn't mention the model but I bet its a samsung rear projection HDTV.
If the convergence board fails, you can diagnose by pulling the power leads to the 3 convergence circuits, then power on the tv, if it lights (picture will have very bad convergence) then that is most likely the cause.
You can usually buy a new convergence board for about $80-$100. Look on eBay by the make and model of the TV.
And its real easy to replace.

Nov 26, 2007 | Televison & Video

2 Answers

No picture no sound


Could be a bad relay, or a bad power supply, or something else. Unplug the TV for a while (overnight perhaps) to see if it "resets
Convergence amp ic bad
http://home.earthlink.net/~oleg.filippov/ConvergenceFix.htm
http://cmpalmer.blogspot.com/2006/11/fixing-my-own-tv-part-ii.html
Sony Convergence
http://www.techlore.com/blog/entry/19694/Sony-Convergence-Repair-My-Sony-TV-has-a-distorted-picture-/
http://www.techlore.com/article/19631/Sony-Convergence-Procedure/

Oct 10, 2007 | Hitachi 51SWX20B 51" Rear Projection...

3 Answers

Samsung hcm4215w Convergence board problem


Use PANASONIC STK's.They are expensive,but they hold up!Safe,durable repairs require OEM or BETTER quality replacement parts.

Sep 27, 2007 | Samsung HCM4215W 42" Rear Projection...

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