Tip & How-To about Hitachi 53UWX10B 53" Rear Projection Television

"double vision" caused by bad solder points on convergence chips (check before you buy)

Before you order new convergence chips to try to fix the double vision or 3D look on your tv check the solder points for the chips. If you are able to smack the side of the tv or tap the heat sink for the chips and it corrects the problem than chances are the chips are fine butone or more of the solder points are bad. When I looked at the joints for the chips I noticed hairline cracks around the base of the joint. Re-soldering the joints for the convergence chips solved my problem.

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blue and yellow, like double vision or 3d look


The convergence circuit has failed in the tv. These are the big STK chips on the circuit board. It typically costs $300 to fix at a TV service center. Requires replacement of two STK chips, some resistors, some fuses and then re-alignment of the CRTs within the service menu.

If you have proper soldering tools and can download the service manual, it is possible to do the repair yourself.

If you do not have any electronic background whatsoever, I do not recommend a person to attempt it.

Feb 20, 2011 | Televison & Video

1 Answer

We recently moved the tv and now when we turn it on it has double vision. It kinda looks like a 3d movie. What could be the issue? Is it worth fixing?


Hi,
If tv picture was fine before moved then check dry/ cold solder joints/ connections on convergence output ICs and nearby circuit area.
Local tv repairman will resolder loose/ dry solder connections to solve double vision picture problem.
TV worth fixing if picture is good.
Thanks.

Feb 18, 2011 | Sony KP-57WV700 57" Rear Projection HDTV

1 Answer

Double vision on my Mitsubishi 46 inch width screen--TV is 5 years old


Projection TV sets need to have all three colors - RED - BLUE - GREEN - lined up correctly on the screen in order for the video to look normal. When its out of alignment the video will look 3D, wavy, distorted, etc. Most of the time you just need to adjust your convergence in the TV menu. If you cannot adjust it in the menu - then your convergence is broken and needs to be repaired.

This is a very common failure on these projection sets and a fairly simple DIY fix. All projeciton sets including Samsung, RCA, Sony, Philip Magnavox, Panasonic, Pioneer, Akai, GE, JVC, Toshiba, and others at some point will have the same problem.

Common Symptoms include....
  • Screen looks 3D
  • Colors don't line up
  • One or more colors can't be adjusted when using the convergence menu.
  • Screen is bowed or warped.
  • TV shuts off after powering on. Power light will blink. TV may also make a chirping noise.
Here are some photos of convergence problems.

42d3683.jpg

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Here is a quick test....

Using your original remote go-to the settings menu then goto the convergence section.

Try to adjust the red and then the blue convergence.

You should be able to move RED and BLUE in all directions - up, down, left, and right. And you should be able to get the grid straight.

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

Note: If you TV has as flash focus or magic focus button only try pressing the button. If it fails to fix the convergence your need to fix it. See below for a fix

69189a5.pngCONVERGENCE SOLUTION

You will need to replace the convergence chips and possibly some convergence resistors and pico fuses.
This is a a fairly easy DIY job if you are handy and can follow directions. You can get complete repair kits from TvRepairKits.com or click here. They have put together DIY repair kits that include the OEM parts and step by step photo instructions for each repair. If you are not handy or can't follow directions we would suggest calling a shop.

Mar 16, 2009 | Mitsubishi WT-46809 46" Rear Projection...

1 Answer

Picture bends in different colors


your Convergence IC chips and resistors arre failing you need to replace them

below is a general disscussion post for a Philips TV which will help you to understand your situation and what you might need usally you will need (2) IC convergence Chips and usally (12) Resisitors what have to be soldered onthe the board after you remove the old ones. this fix usally cost you to do it yourself $30, to have a repair man do it cost around $300-450 a new board if avalible usally costs $250-300

Sorry, for the bad new I hope you have a friend that knows how to work on circuit boards...
good luck,

below is a general post about a philips TV Convergence problem you can read about keep inmind your CHIP and RESISTORS will proball be different type....

you need 2 Convergence IC's STK392-120's (120's and 150's will work) of course order 2 of the same type I'm using replacement 150's they allow for a little higher heat and were cheaper ALSO you need to replace the 12 resistors with 6.8 ohm metal film resistors, make sure they are metal film! don’t skimp out here I did and then they blew and fried my IC's and I had to replace everything again!

Great reference link that I posted
pictures on, check out page 3
http://www.techlore.com/forum/thread/16736/Magnavox-51MP392H-17-51-quot--TV-has-double-vision/

Where I got my parts that worked:
Suburban Electronics
http://www.suburban-elect.com/
Manual Library you should find all you need here:
http://www.techlore.com/group/2/list_downloads



What you need:
(2) STK392-120 OR STK392-150 IC
chips
(12) 6.8 Ohm Metal Film resistors
set of star screw drivers
15 watt pencil solder pencil, DO NOT use a high watt iron you will fry the surface mounted item.
good leaded solder, and flux

Nov 20, 2008 | Mitsubishi WS-65909 65" Rear Projection...

2 Answers

double vision


Convergence ICs are bad it causes the red and/or blue to jump out of alignment making it look 3D. You have to convergence ICs located on a large aluminum heat sink with an STK number stamped on them. You can purchase new ones for about 10.00 each. they have to be soldered in. If you can solder you should easily be able to repair this yourself. Let me know if you need anything further.

Jan 24, 2008 | Sony KP-53S65 53" Rear Projection...

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