Question about Toshiba TN61X81 61" Rear Projection Television

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Convergence Circuitry Physical Location

Where is the convergence circuitry located exactly in the rear of the TN61x81?

Posted by Ron Sisk on

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Anonymous

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Pitcher has shadows and sag from tom and rises the bottom. If tapped clears up for a bit but always comes back.

Posted on Dec 09, 2009

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If you are at the back of the tv you need to open the lower cover, it is on the Left of the deflection board(flyback transformer) and above the power supply board where the power AC cord attach..

good luck...

Posted on Sep 15, 2009

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Lavell Turner

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Hello look at circuit boards it is the area with a large metal looking heat sink with fins with large black IC's mounted on one side of the heat sink . These are your convergence IC amplifiers you can't miss them as they are the largest intergrated circuits in the television.

Hope thi shelps
Plaeas leave comment for futher info..
Thx Lavell

Posted on Oct 02, 2009

Charlie Meyers

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Chk out my new post today.

Charlie M.

Posted on Nov 16, 2008

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1 Answer

My TN61X81 cannot start. When plugs in, there is a "click" sound like relay action, but nothing else happens, screen is black, the front red LED flashes (not in a constant pulse), front...


we have the same problem with ours, not sure what exactly is wrong with it, but what we do is unplug the tv, take the back bottom panel off, and press down on all the circuit boards. After we do this the tv comes on and works fine, but we have to do this almost every time we try to turn it on. Not a permanent fix but that should get you through at least for a while hope this helped

Jan 23, 2011 | Toshiba TN61X81 61" Rear Projection...

1 Answer

Letters on the screen are out of focus


could be adjust ment required on the focus block a part of the high voltage circuitry.. ususlly located..if you take of front grill, than remove a small panel..has 3-6 small knobs on it. Bottom three usuallt focus, one for each of the three lamps. or could be convergence misaligned..maybe time for a convergence repair. Two large black STK chips on main board.

Trace Electronics Repair, Barrie, ON

May 29, 2010 | Hitachi 53UDX10B 53" Rear Projection...

1 Answer

My JVC AV-56WP74 is showing green and purple waves at the top of the screen what is defective?


Common problems with the chassis used in this model for complaints such as this are caused by damage in the convergence circuitry (since there are three separate picture tubes, each mounted in a physical location different from the others, the light each tube "throws" on the screen falls in a different physical location on the screen; the electronics of the convergence circutry force the red & blue light information to "converge" on the image produced by the green tube, which being physically located in the center of the other two is the "master" image), usually associated with the IC's used as amplifiers for the convergence circuits (this model uses STK392-110's) and with the high-wattage, low ohmage resistors used as biasing components for these amps

Mar 04, 2010 | JVC AV-56WP30 56" Rear Projection...

1 Answer

Toshiba TN61x81-- after convergence IC's replced


Please don't be offended by my suggestions if you are experienced at circuit repair.
You may have a cold solder joint or bridged joint. Check and re-check your connectors for placement. It is normal to have to adjust the convergence and focus after replacing the IC's. There should be a row of focus knobs (ususally covered by a piece of black tape) with the screen controls.
The convergence IC's won't affect the visibility of a color only the alignment.

Sep 21, 2009 | Toshiba TN61X81 61" Rear Projection...

2 Answers

Convergence problem


If the convergence is out on that set you most likely do not need to make an adjustment the circuit will need to be repaired. There is a stk on the convergence amp board that needs to be replaced. A good tv shop will run you somewhere between $300-$500 to do the repair

Oct 28, 2008 | RCA P56923BL 56" Rear Projection...

1 Answer

Signal board jumper wires?


Hard wire jumpers feeding voltage to convergence circuitry located between board edge and current limiting resistors & near STK IC's.................HTH........................T.

Most H-line Toshiba's have them......

Aug 21, 2008 | Toshiba 43H71 43" Rear Projection...

1 Answer

Toshiba TN61X81 Convergence


Need to know generic number of convergence output IC's.STK392-100,or what,Please
Robert: [email protected]

Jul 03, 2008 | Toshiba TN61X81 61" Rear Projection...

1 Answer

My toshiba tn61x81 projection tv


have you tried the convergence option in the menu? i believe it is under "picture". this allows for nine different sections of the screen to be adjusted when projection images get out of whack.

Oct 20, 2007 | Toshiba TN61X81 61" Rear Projection...

1 Answer

Convergence problem Toshiba tn61x81


You need the original remote control to adjust the convergence..If you tried the original remote,and still have that problem,I would advise you not to spend another dime on it...You can shop around and buy a new big screen tv with 3-5 year warranty,and less headaches..Check vance Baldwin electronics in Georgia to see if they can order a remote for you..Good luck..

Oct 09, 2007 | Toshiba TN61X81 61" Rear Projection...

1 Answer

Mitsubishi VS-60705


1. THE CONVERGENCE CAN BE RESET BY PRESSING "MENU 12596" TO ENTER THE CONV MISC. MENU THEN "8970" TO RESET.

Aug 21, 2007 | Mitsubishi VS-45605 50" Rear Projection...

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