Question about Sony KP-53S70 53" Rear Projection Television

2 Answers

Red in the shape of a rainbow

I had the TV on and it seems the red color started arcing up in the middle and down on the left and right. I wasn't changing channels or anything. Any way of adjusting it? I know how to get the front panel off already if that helps you when you explain your diagnosis.

Posted by on

2 Answers

  • Level 1:

    An expert who has achieved level 1.

  • Contributor
  • 1 Answer
Re: Red in the shape of a rainbow

How do i get the colour menu to display on the screen?

Posted on Mar 22, 2008

  • Level 3:

    An expert who has achieved level 3 by getting 1000 points


    An expert that got 10 achievements.


    An expert that got 5 achievements.


    An expert who has answered 1,000 questions.

  • Master
  • 1,139 Answers
Re: Red in the shape of a rainbow

I have seen this before check your TV to see if it uses the STK-392-110 3 channel convergence module. If it does you may have to replace them (there are two of them). You may read something about replacing them with the STK392-150s but don't do it since the replacement requires the changing of the bias resistors, and you need to know ecactly what you are doing. You will need to desolder the the old modules and solder in the new ones (new 110s not 150s). I would advise you to get a schematic and check the voltages on the chips before changing them just to make sure they are bad.

Posted on Sep 09, 2007

Add Your Answer

0 characters

Uploading: 0%


Complete. Click "Add" to insert your video. Add


3 Points

Related Questions:

2 Answers

Red color alignment problem

1) Whenever a rear projection TV has convergence issues, the
fix involves replacement of both IC's = STK392-110.......sub to
STK394-160E for improved durability...........
2) Soldering only is a temporary "fix" at best
3) Do not allow generic IC's, OEM quality or better = I use
Hitachi brand,made by Sanyo,with no callbacks....
4) Skill level needed = above average,....needs chassis pull...T.

Nov 14, 2007 | Hitachi 43FWX20B 43" Rear Projection...

1 Answer

Bluish color right coener

I'm afraid, it is problem of optics unit block (light engine), there are 3 LCDs red-green-blue for color picture formation and blue LCD sounds bad, please call local TV tech for fix.

Oct 21, 2009 | Sony Grand WEGA KDF-42WE655 42" Rear...

1 Answer

Red/Orange horizontal lines

it could be that the tv convergence circuit is going bad. One shure way of finding out is to go to the tv feature menu(picture,audio etc.) and select the customer convergence setting, you should get a cross hair pattern(cross in middle of screen). that cross should be white and by aligning the red or blue colors they should move left, right, up or down

Jul 27, 2009 | Akai PT5492S 54" Rear Projection...

1 Answer

Sometimes I get a rainbow on the bottom of the screen.

Your TV most likely has a convergence failure. ( common problem )

Here are some of the most common symptoms and example photos of a convergence problem

  • 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.
Here are some photos of convergence problems.

Here is a quick test....

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

Try to adjust the red and then the blue 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.


You will need to replace the convergence chips and possibly some convergence resistors and pico fuses. Its a fairly easy DIY job or you can call in a pro. If you want to do the repair yourself check the site Their kits include a photo instruction guide, original OEM Sanyo STK chips, convergence resistors, pico fuses, thermal paste, email/phone support, etc.

Jun 18, 2009 | Philips 60PP9202 60" Rear Projection...

1 Answer

Red color distortion.

You have a Convergence problem. Most likely the STK392-120"s are bad and possibly a few resistors. Not something you should attempt if you've never done one. I would recommend calling a service co. in to repair it.

Apr 23, 2009 | Philips Magnavox 9P6034C 60" Rear...

3 Answers

Sony kp-51w5510 rear projection tv convergence

Lateral red or blue movement is accomplished electronically
via convergence alignment circuitry controlled by STK type IC's
Replace them both for reliability, then adjustments will work..

Nov 26, 2007 | Sony KP-51HW40 51" Rear Projection...

1 Answer

Green and red color problem on bottom left to a little past the middle of the bottom of screen

the convergence ic's are breaking down and require replacement should cost under $ 250 depending on your service shop.

Nov 18, 2007 | Panasonic PT-51HX41 51" Rear Projection...

Not finding what you are looking for?
Sony KP-53S70 53" Rear Projection Television Logo

69 people viewed this question

Ask a Question

Usually answered in minutes!

Top Sony Projection Televisions Experts

Steve Sweetleaf
Steve Sweetleaf

Level 3 Expert

1128 Answers


Level 2 Expert

103 Answers

Jason Harris
Jason Harris

Level 2 Expert

256 Answers

Are you a Sony Projection Television Expert? Answer questions, earn points and help others

Answer questions

Manuals & User Guides