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Hitachi 65xwx20b convergence

Replaced stk392-150 i.c. convergence on blue gun still wont move checked all resistors ok convergence was working before replaced stk but blue was way off then blue locked up and wont move vertical so replaced stk still locked up

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  • chad c Dec 01, 2007

    replaced stk392-110 and 392-150 thats the way they came from factory. before replacing stk's the convergene was misaligned we were able to adjust all 3 colors back to alignment then we shut off for the night woke up and convergence was way off again (forgot to save to rom) started adjusting all colors back to convergence lines were not wanting to adjust very easy bouncing back and fourth then lines started pulling apart then blue locked up and were not able to adjust side to side any more every thing else still adjusts. which resistors control side to side fo blue gun.will go back and recheck ohms. any way to check voltage on stk? any way that blue gun can be out of convegence so bad not able to adjust in maual or service mode? thanks for answers.

  • chad c Dec 02, 2007

    chad c- e-mail-l



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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.

Posted on Dec 01, 2007

  • Larry Eastman
    Larry Eastman Dec 01, 2007

    Chad, send me your email address & I`ll send you the info you need in a pdf bulletin.



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My 6 year old 65xwx20b tv convergence problem

Good Day,

This is a common problem with this TV, but there is an upgrade to correct the CONVERVGENCE circuit problem.
If you want to repair this concern yourself: Contact: B&D ENTERPRISES,
1-800-458-6053, and ask for KIT10 for your Hitachi TV.
If you want some else to do the repair for you call an Authorized Service Center.
Needs convergence IC's

Good Luck,BIG IRISH.

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Can't get manual conf. to hold in white

Ur convergence it dead.need it to be replaced,know how to solders?Tries these Websites for convergence kit.Tv repair or Tv repair Kits.

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Blue lamp is not in focus

Try adjusting the convergence. If it won't move see below- (or hitting Magic Focus for some Hitachi’s)

This sounds like convergence output IC problem. convergence board would have to be removed - remove and replace 2 STK IC's and check the surrounding resistors. Shops usually charge between $200-$400 Be sure to vote/rate me if this helped Thanks!
See link for more detail

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12 years old rear projection, the blue + won't move left

First check that no resistors are burnt near the convergence ICs, of course with the back open. Next tap on the metal heatsink and see if the blue pops straight, if it does you could just solder the pins on the IC nearest the blue convergence yoke plug, soldering is a trained skill and would involve pulling the chassis back and flipping it upward without breaking any wires or components. If you see discolored resistors in the right section the ICs are shorted and need replacing.
If nothing is loose and everything looks OK, you may have a bad remote button (probably not, but hey) . as a last resort you could try moving the blue yoke centering tabs, this would move all the blue at once so if its bowed anywhere it would not solve your issue. If this helps great , if not post more info for more help.

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1 Answer

Not able to adjust red convergence on top or bottom

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

Convergence problems are very common on all Projection TV sets including Sony,Samsung, JVC, Philip Magnavox, Panasonic, Akai, Pioneer, Hitachi, Zenith, and others. You can get a convergenece repair kit wiith instructions from the links below.

Here are some of the most common problems with these sets...

Problem #1) Convergence

Yours may have one or more of the following symptoms
  • Screen Looks 3-D
  • Colors wont align
  • Screen may look distorted or warped
  • No Audio/Video - makes a chirping sound.
Problem #2

Another common problem is dull or washed out video.
Your TV may have one or more of the following symptoms....
  • Dull looking picture
  • White looking picture
  • Halos around objects
  • Red/Orange looking picture

You can see some more examples and find a fix here

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Hitachi 65xwx20b

hello. yes you might check the cord . ? or your outlet that your pluging in to,might not work.? check them. ok hope this help's you."GOOD LUCK"

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this is an idication that eather the convergence ic's or convergenc ic output resistor have blown

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go here
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please mark post fixya!

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You have bad convergence IC,I'm afraid. You will need to have both of them replaced. this job should run you about 300 bucks or so to have them replaced and the set realigned. DO NOT try to adjust the convergence inside of the set before replacing the IC's, as this will only make the job cost you more. Good Luck

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