Question about Panasonic PT-53WX53 53" Rear Projection HDTV-Ready Television

1 Answer

Need more help on stk-392-110

I replaced the conversion kit a pair of stk392-110 and 6 2.2ohm resistor and the blue is still out bad how do i get in too the secivce mode will this fix it or is one of the stk chips still bad

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  • Rob McCutcheon
    Rob McCutcheon Mar 06, 2009

    ok then could it be that one of the ic`s are bad?

  • Rob McCutcheon
    Rob McCutcheon Mar 06, 2009

    i dont have a manual on this i just bought the kit ground my self and installed them the set stays on now but the blue wont line up....thats makeing me think that the i`cs are still bad

  • Anonymous Mar 08, 2009

    what would the pico fuse look like?
    thanks

  • Shahid Electronics
    Shahid Electronics May 11, 2010

    Yeah, please check surrounding parts near STK, like resistors, pico fuse etc.
    You should have service manual of TV to check voltage, signal etc



  • Shahid Electronics
    Shahid Electronics May 11, 2010

    Do not go to service mode if you had not done any thing with service data yet.
    Please double check convergence board, check voltage supply to STKs, get help from related service manual.
    If Tv was working fine before convergence problem then Do NOT disturb service data.


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Possible cause if generic chips were used. You can't use generic STK chips on this set they will blow, if not right away most likely within a month. I just did my friends set and spent 51.00 a piece for genuine Panasonic STK chips, didn't replace any other components and its fine. (I did have an unrelated issue with fluid but the set is fine now) I am not sure that is the problem your having but if you got cheap chips in the kit you bought, there is a chance they blew again. Also double check your solder connections make sure there isn't any bridging or cold solder joints. Did you use new heat sink grease (white paste)? Checking the voltage is good advice also. My advice is based on the assumption that you tried to fix the convergence through the convergence menu on the set and still couldn't get it. Let me know...

Posted on Mar 16, 2009

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1 Answer

Yellow and Blue "Ghosting"


Replace Both of the STK ICs ,they are big black ICs and will have PN# on them STK392-110
Check the resistors near STKs and make sure they are OK.
Mats Has STK ICs 9.95 each 1-800-628-1118 ask if they have convergence Kit for this model.

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thanks.

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I have a hitachi 43FDX15B RPTV It appears to have a convergence problem, I've read about replacing the stk IC's but which resistors need to be replaced and what are the values on the DP15k/08 Board?


This model uses two of the STK-392-120 CHIPS and here are most of the usual resistors to suspect or check:

Hitachi AT03411S RK43 RESISTOR Hitachi AT03608S RP22 RESISTOR Hitachi AT03195S RK46,RK54, RK62 RESISTOR, 1.8OHM 1W Hitachi AT03857M R815,R865 RESISTOR, 1/2W 100 OHM Hitachi AT03191S RK50 RESISTOR, 1W 1.2 OHM Hitachi AT03197S RK50 RESISTOR, 1W 2.2 OHM Hitachi AT03199S RK41 RESISTOR, 2.7 OHM 1W Hitachi AT03202S RK42 RESISTOR, 3.3OHM 1W Hitachi AT03204S RK58 RESISTOR, 3.9 OHM 1 WATTThe RK ones are all marked on top and bottom of circuit board---usually if one is bad you will be able to see it is discolored---all are very low value and should read open or good only.

This is a fairly easy set to do this on---the whole convergence board (right side from the back view) is held in with 3 screws and an assortment of plugs--3 plugs are identical (convergence yokes and you need to mark so you get each back in same place)

A row of black snap plugs on the left side and with the screws and other plugs removed the board will lift up and out of the set.

DON'T waste your money on one of the "kits" being sold on the net---you can buy a pair of the chips for about 12 dollars on Ebay and usually only one (if any) of the resistors will be bad---those kits sound like a good idea but at 50-80 you are buying things you will not likely need to repair the set.

Let me know if you have any questions and if this information helped you rate this solution as I do this here for free.

SD TECH


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1 Answer

Model 53UWX103B - parts 21 chips for converters to


This is a model that uses either the STK-392-110 OR STK-392-150----BOTH are the same part but the 150 chip lasts longer.

Most of the time the "kits" are a waste of money--unless something unusual has happened you will just need a pair of the chips and maybe one resistor.

There are several resistors around them that can fail if a chip shorts. The kits average 40-80 dollars but you can buy a pair of the 150 chips on EBAY for about 13 dollars plus shipping.

Let me know if you have specific questions or need advice--I am here to help.

SD TECH


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Dec 10, 2009 | Televison & Video

1 Answer

I have a Sony KP-61V60. I seem to have a problem with the color covergance where my screen looks almost 3D with the red sticking out. What do I need to do to repair this myself? How do I know if my RGB...


If you go into the customer menu and select CONVERGENCE and red or blue will not adjust in some direction you have a Convergence circuit problem.

Most of these sets use two STK-392-110 or STK-292-560 CONVERGENCE ic chips.

Both chips need to be replaced. If convergence will not adjust you do not have a bad "bulb" these sets use three picture tubes--red, green, and blue and the convergence circuit "converges the three pictures".

Usual parts cost total is under 30 dollars if you buy the parts on Ebay--there are places on the net that sell kits for 70 or more---they contain the pair of chips and other parts that may be needed--from my point of view they are a waste of money as most of these sets just need the two chips replaced--some will need a bad resistor around one of the chips located and replaced as well--on Ebay you can buy a pair of whatever chips the set uses for under 20 dollars including shipping.

Right now the site where I research these models for exact part numbers is down but I can help if you have some skill at soldering and want to fix it yourself. Most shops are going to get 300 or more for this type of repair.

Let me know if you have questions or need help.

If this information has helped you rate this solution as I do this here for free.

SD TECH

Nov 25, 2009 | Sony KP-61V90 61" Rear Projection...

3 Answers

Red color distortion hitachi 46f500


Can't remember which this one uses but its right on the chips. Check your resistors too.

Apr 08, 2009 | Hitachi 46F510 46" Projection HDTV

2 Answers

Tv has a the blue tint that won't line up.


the problem is with the convergence, 1 or more chips could be faulty. replacement is the oly option if faulty stk-xxx-xxx

Dec 26, 2008 | Philips Magnavox 51MP392H Rear Projection...

1 Answer

I have a convergence problem. My Sony KP-65WS510 has a picture that looks like 3-D and bows at the bottom and top of the screen. I already replaced both the IC's STK 392-560 (2 qty.) and check all six 3.5a...


You have 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 but stationary.

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. 

>>>Solution<<<< 

You need to replace the convergence chips and convergence resistors. 

Check the site www.TvRepairKits.com. They have put together a kit for your exact model. The kit includes a photo instruction guide, original Sanyo STK chips, convergence resistors, etc. Everything you need to fix it yourself. 


Dec 09, 2008 | Sony KP-57WS510 57" Rear Projection HDTV

1 Answer

Hitachi 65xwx20b convergence


Your message says you "replaced stk392-150", did you replace both of the stk`s or just one of them??? One is for RGB vertical the other is for RGB horizontal, you should always replace both stk`s as a set, Hitachi recommends you use a "replacement kit"
part number X480306", this kit includes both stk`s with a new & supposedly improved set of stk`s as well as all resistors that are required for proper set-up, they strongly recommend you change all of the parts in their kit. The only other thing besides IC`s & resistors that could cause your problem is:
1) bad dcu output (you need a scope to check this)
2) you`ve lost either the +15 volt line or the -15 volt line to the IC`s, "Fxxx" chemical fuse open in power supply.

Dec 01, 2007 | Televison & Video

3 Answers

Double IMAGE of RED


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
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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.

Oct 14, 2007 | Hitachi 43FDX15B 43" Rear Projection...

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