Question about Mitsubishi WS-55809 55" Rear Projection Television

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Red line swirly red line

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Replace Convergence IC's = STK392-570.......
Test................T.

Posted on Sep 01, 2008

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Red tint,double pictured red, kinda swirly


Replace Both of your STK ICS they will have Part number on them example STK392-110 if 110s use 150s Call Mats 1-800-628-1118

Dec 14, 2009 | Sony KP-57WS500 57" Rear Projection...

3 Answers

Pt 56tw53 picture trouble


Based upon your description, the problem area is the convergence circuit. These sets usually have a couple of large black ICs that control the convergence. These Ics either have bad connections on the pins or are failing. You can try resoldering the pins of these ICs if you can solder, or replace them. These ICs are usually marked STKxxx and are attached to a heatsink.
If you get this repaired, expect to pay about $30-$40 for each IC (there can be 2) along with the local labor rate for projection sets.
Dan

Mar 26, 2008 | Panasonic PT-56TW53 56" Rear Projection...

1 Answer

Red lines are taking over


possible your tripler control is going out .This part splits the high voltage from flyback transformer into 3 high voltage leads to feed to the three picture tubes .The side for the red is likely to go out causing red picture tube to overdrive in red retrace lines..That or RED CRT BOARD is bad

Dec 06, 2007 | JVC AV-48WP74 48" Rear Projection...

1 Answer

Red, bule, green lines do not line up together.


why is my projection tv screwed up on the left side with the color red only i tried to center it and it won't go any further.

Sep 05, 2008 | Projection Televisions

1 Answer

Big screen on bad red lineand blury


Good DAy, mitas;
It sounds that the TV is having a Convergence Circuit problem or you may CRT Coolant (fluid) on the PCB's. Good Luck, big IRISH........ PS Call for help, by calling a Factory Service Center....get an estimate!!

Aug 31, 2008 | Mitsubishi WS-55809 55" Rear Projection...

1 Answer

My screen have some red lines


I will assume from you description that this is a rear projection crt(picture tube) tv. if this is true I have good news/bad news.
faint red horizontal bowed lines in the picture indicate the screen(G2) voltage for the red tube is too high.Slight lowering of the G2 adjustment will eliminate these lines. I stress SLIGHT because too much adjustment will mess up the gray scale .
The bad news the red crt made be bad. if the adjustment works but in the future the problem reappears then suspect the red crt.red crt replacement is probably not economical to repair.

Jun 09, 2008 | Mitsubishi WD-52525 52" Rear Projection...

1 Answer

The red projection tube won't focus


Set needs convergence ic's changed and possibly a few small 1/4 watt resistors. Parts have to be desoldered/soldered into circuit board and test equip.(ohm/ volt meter) is required. Most repair shops do this repair for 175.00-375.00 Hope this was helpful. Russmann

May 21, 2008 | Hitachi Projection Televisions

2 Answers

Green lines through out the screen


Do not adjust any knobs as instucted in the previous thread if you TV have a convergence problem. Doing so will only make things worse. The blog does however show you how to fix other common problems with these sets.

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.
701cb04.jpg
77ea520.jpg
f0900cb.jpg
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.

2c07611.pngSolution #1

You need to replace the convergence chips and convergence resistors. Check the site www.TvRepairKits.com. They have put together a kits for most models. If you don't see a kit for your set send them a quick note and they will put one together for you. Their kits include a photo instruction guide, original OEM Sanyo STK chips, convergence resistors, pico fuses, etc.

May 15, 2007 | Hitachi 52LDX99B 52" Rear Projection...

1 Answer

Pt 56tw53 picture trouble


I had the same problem with my TV, It seems the high voltage trasnformer blew which in turn casued the pin cushion?? to blow. It then shuts the tv off to prevent more damage to it. $500 with service charges to get it fixed!

Nov 05, 2005 | Panasonic PT-56TW53 56" Rear Projection...

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