Question about Zenith R56W36 56" Rear Projection Television

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My broken but loved big screen zenith projection television r56w36

Hi,
i have a convergence problem,i replaced both ic stacks stk392-570.now when i push auto convergence it goes all the way through,but whole screen is out of alignment. the screen is bent at the top and bottom.

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  • Charles Stillwell
    Charles Stillwell Jun 26, 2008

    i was told i need service manual by online tech support 14.99 for nothing. so my question is where can i get a service manual.

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Posted on Jul 27, 2009

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Zenith tv turns itself off after convergence IC were replaced


It will be good to check once again on the work that was done as there is a possibility that the pins are bridged with solder when the rework was done.
So if you are able to use a magnification glass to inspecct it will be good and if so there is also a possibility that the IC was damaged.
Finally int he first place the identification of the fault of the convergence IC must be established with your test other wise a board replacement might confirm.

Oct 16, 2011 | Zenith R56W36 56" Rear Projection...

1 Answer

We moved the TV and it now has color shadows, blue,red and yellwow. It looks llike 3D. In the past I did auto convergance and it fixed itself. This time it will not adjust itself. is this something I can...


You need to Change out the Convergence ICs they are Big Black ICs and will have the part number on them STK392-570s I think is what they use in this model.
Mats Electronics has ICs 1-800-628-1118
You can ship the Convergence board to PTS and let them rebuilt the board 1-800-844-7871
Zenith Exchange Moduels 1-800-632-6637
If you plan on Fixing this ,then you also need to check the Low ohm resisotrs 1ohm and Capaciotrs 1000uf 35v near the STK ICs

Jul 04, 2011 | Zenith R56W36 56" Rear Projection...

1 Answer

I have a zenith rear projection screen.the left half of the screen is fine.the whole right hand side has a green tint and has double vision.


Bad convergence causes this replace STKs or whole convergence Board STK ICs are big black ICs will have part # on them STK392-110s call Mats for STKs 1-800-628-1118 or to replace whole board call Zenith exchange 1-800-632-6637 they even have power supply boards when in stock or they can rebuilt your board.

Sep 21, 2009 | Zenith A60M91W 60" Rear Projection...

1 Answer

Zenith R56W36 Image in 3D


This needs a special remote to get to the factory alignment screen.This is the part # for the remote ---#105-201m .
You really should call a good TV Tech on this one. They are a convergence nightmare for even a good Tech.

Jul 31, 2009 | Sony KP-57WS500 57" Rear Projection...

1 Answer

I have the Zenith R56W36 56 in. Rear Projection Television, and im getting a 3d affect is there a way to solve this problem?


yes the convergence needs to be repaired. You can get a kit for your model which includes both convergence ICs and all the feed resistors . the kit also includes free instructions so you can do the repair yourself. Heres the link to the proper repair kit for your model.
http://servicemanuals.vstore.ca/product_info.php/pName/r49w36-r56w36-convergence-repair-kit/cName/convergence-repair-kits

Jan 24, 2009 | Zenith R56W36 56" Rear Projection...

1 Answer

R56w36 zenith projection television crt


If the resistor doesnt read its open and needs replacing. I have no idea on what your origional symptoms were. If it was convergence just the large feed resistors need checking.

Jul 08, 2008 | Zenith R56W36 56" Rear Projection...

1 Answer

Zenith r56w36


If you replaced the convergence ICs did you check the convergence resistors as well, as often the old ICs will take out a few resistors in the Convergence feed circuits or at least increase their values and that can give those symptoms youre describing after new ICs are instaleed.

Jun 26, 2008 | Zenith R56W36 56" Rear Projection...

1 Answer

Zenith Television Big screen


replace the convergence amps and any blown resistors or pico fuse on the board. this is a common problem of rear projection sets this repair is not for the amateur have it done by a pro. the cost of the repair may be around $ 350.00. if you so choose to do the repair yourself, look for the two large ICs on a large heat sink (stk392-xxx).repalce them use heat sink compound on the new ICs and check the resistors around the ICs with a DVOM and check any pico fuses for open.

Mar 02, 2008 | Zenith R56W36 56" Rear Projection...

1 Answer

Zenith r56w36


Unless you can do TV repair your out of luck on this one! Replace your convergence board or ship it for repair cheapest way.You must remeber to connect board exactly the way it hooks up , convergence board has 2 ics on it STK392-120 these ics go bad all the time and when you press auto they quit working.If you need any more help let me know. ThankYou for using FixYa. Have a Nice Day.

Feb 07, 2008 | Zenith R56W36 56" Rear Projection...

1 Answer

Zenith R56W36 covergence problem


you will need to replace conv ic's then auto converge..

Oct 19, 2007 | Zenith R56W36 56" Rear Projection...

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