Question about Toshiba 61H71 61" Rear Projection Television

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Red covergence The red convergence won't move vertically....image has sharp red shift outward from center and extreme at edges, especially right edge.

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Re: red covergence


Posted on Dec 05, 2007

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Words are doubled red borders???

Just to clarify, it sounds like what you are saying is that the image appears to duplicate in either red or blue along the edges of the image (especially white lettering and probably increasing along the boarder of the TV). This is resolved by converging your TV. Convergence will drift normally on large screen projection TV's over time or through moving them. The Hitachi 57f500a has a feature called "Magic Focus" (pg 36 in your manual) which will auto converge the image. If the auto converge feature doesn't work, on page 37 in your manual, it explains how to converge manually. If you do not have the manual, I have the image of the pages below. If for some reason this doesn't work, please provide additional info and detailed prior to rating the help.

Apr 20, 2009 | Hitachi 57F500 57" Rear Projection...

1 Answer

Convergence issue

try fixing the convergence 2 after your've aligned the convergence 1 - the second (accessed via the set up control) let's you adjust on 9 different axis to align the red and blue tubes to the green. you select which + sign you want to adust by pressing the corresponding number for the + ie 1 for the top left, and 9 for the lower right corner.

good luck (note - you cant change the green only the red and blue, if the whole edge is a mess try moving the image (you need to be in zoom mode, and then access the position adjustment via the pitcure set up screen.

Nov 05, 2008 | Panasonic PT-47WX49 47" Rear Projection...

1 Answer

KP-46WT510 - Red has shifted away from blue and green.

first replace the 2 convergence chips they are the big ones with heat sink atached,they start with stk letters and like six numbers,change'em with same ones you can buy'em at for cheap and original parts,friendly people,ok and that should fix problem,you won't need service manual,or you can get that too at for cheap too,ok,let me know how was evething,your friend,faradio.

Mar 29, 2008 | Sony KP-46WT510 46" Rear Projection HDTV

2 Answers

Hitachi 51SWX20B Convergence problem


Your TV has a convergence problem. Here are some of the most common symptoms.

Screen looks 3D
One or more colors can't be adjusted when using the convergence menu.
Screen is bowed in or warped.

Here is a quick test....

Using your original remote go-to the tv settings then goto the convergence or magic focus section.

Try to adjust the convergence.

You should be able to move them up, down, left, and right.

If you can't move them in all directions your convergence chips are bad and should be replaced. This is a common problem.

Its a fairly easy fix on the Hitachi sets.

You can get a repair kit that includes all the parts from The kit includes a photo instruction guide, original Sanyo STK chips, convergence resistors, etc.
Everything you need to fix it yourself.

Jan 28, 2008 | Hitachi 51SWX20B 51" Rear Projection...

1 Answer

Double image - not covergence

Nov 21, 2007 | Toshiba 42H83 42" Rear Projection...

1 Answer

Yellowing screen off-center - not a convergence issue

You might want to try the optic lens adjustment screw on the side of each crt. Mark them before moving.

May 30, 2007 | Philips Magnavox 51MP392H Rear Projection...

2 Answers

Colors red and green overlap

Covergence is off... Check convergence and see which color will not move in the convergence settings... That is the STK that needs to be changed out...

May 24, 2007 | Akai PT5492S 54" Rear Projection...

1 Answer

Yellow vertical bar on right edge of screen

Your set is starting to get a convergence problem and the only way to repair it is by changing the convergence IC's,(3)one for each color,the blue migh be showing more now but soon all 3 colors will be out of alignment and you will not be able to correct it with the custumer controls,is great that it has worked for so long without this problem,if you are familiar with tv service you have a place to check but if you are not too familiar be safe and call for help from a pro-servicer.Let Us know how it goes.

Oct 20, 2006 | Sony KP-53V45 53" Rear Projection...

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