Question about Hitachi 43FDX20B 43" Rear Projection Television

2 Answers

What dose a convergence board look like?

What dose a convergence board look like for a hitachi 43in modal #43fdx20b

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  • goalie1jat Nov 27, 2008

    cool thank you my tv is seeing duble what is it that i need to fix on it, i know it is the convergence board but what part on it

  • goalie1jat Nov 27, 2008

    well looking at the resistor rk43 and rk47 both have little black burn spots on them they look like they were to close to the other resistors next to them and go to hot would that cause the duble vision

  • gladdencarpe Jan 31, 2009

    hitachi 43fdx2ob the words are showing double and the picture to the part on the picture looks pink and green also

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I have an Apxe 52"HDTV, where is the convergence board on this tv?
I also have the 3d picture which i could adjust but goes back to 3d, is this the fuses that need to be replaced? if so whrere are they ocated?

Posted on Jan 18, 2009

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  • Hitachi Master
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This is what the convergence PWB looks like. Its located on the extreme right side of the chassis looking in from the rear of the set.what dose a convergence board look like? - 9cc0c04.jpg

Posted on Nov 27, 2008

  • Sonny Berry
    Sonny Berry Nov 27, 2008

    The two Convergence Ics that are mounted on the back side of the aluminum heat sink are the items that control the convergenec , Very common problem. they are both STK392-110 ICs. Also check the following resistors that are in a row in the picture in front of the heatsink board location numbers RK42,RK46, RK50, RK54, RK58 and RK62

  • Sonny Berry
    Sonny Berry Nov 27, 2008

    yes it could, I would check the resistors listed above as well to see if they are still okay.

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1 Answer

43FDX20B RK58 RK50 RK54 RK42 Values STK392-120's


I don't think it will hurt especially if the updated manual indicates it.

May 13, 2012 | Hitachi Projection Televisions

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Hitachi 43fdx20 power supply removal to replace Convergence


Hi, doesn`t need to be removed and I strongly advise you to not remove them. That flyback is no longer for sale, if you break any of the tabs high voltage will leak and arc all over the place. the entire board assembly should be slid back towards you and then lifted straight up so your looking at the solder side of all the boards, unsolder the ic`s, r&r with new ic`s, be certain you use new heatsink compound on new ic`s or they will fail, questions? email me, gl, video-tek

Jun 02, 2009 | Hitachi 43FDX20B 43" Rear Projection...

1 Answer

HItachi 43FDX20B Rear Projection TV Convergence Problem


Replace both STKs Use StK 329-180s if set is using110s,120,150s, I havent heard of anyone yet getting shocked from replacing ICs.

Feb 09, 2009 | Hitachi FDX Series 43FDX10B 43" Rear...

1 Answer

JVC big screen t.v.


Not that bad to remove

As long as it is unpluged you won't get shocked

Look to the right of the boards Remove all the little screws from the convergence board
Make sure you mark or notate where the correctors go

Flip up the little connectors to the left of the board
Do not force the board up if you have to force it you missed a screw

use solder wick and remove the parts

make sure there are no shorts and you replace all the resistors in the kit

Good luck




Feb 09, 2009 | Hitachi FDX Series 43FDX10B 43" Rear...

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Hitachi 43FDX20B 43 in. Rear Projection Television magic focus


Hi, replace the convergence IC`s and any fried resistors and chemical fuses (if any), do not push magic focus anymore it will not correct the prroblem and it will evenntually corrupt the DCU and cause you more problems (and of course more money), questions? ask awayy, video-tek

Feb 02, 2009 | Hitachi 43FDX20B 43" Rear Projection...

1 Answer

Hitachi 43fdx20b Need capacitor but i dont know which to buy!!


Hello Soleftright,

I have CK24 as a 1000pf 50v cap. Look at CK25 it is the same value as CK20 - CK24. Were your convergence ICs STK392-110s? One side of the cap goes to pin 14 of the (IK-04) IC and the other to ground.

I hope this helps
Thank you,

Shuttle83

Oct 21, 2008 | Hitachi 43FDX20B 43" Rear Projection...

2 Answers

Hitachi Model 43FDX20B


Convergence IC's are at locations IK04 and IK05. There are some resistors that will be burnt up on the board as well. Replacement IC's are stk392-150, and are easily purchased, even off ebay. For the resistors you may have to get the location numbers and research the value. If you need the resistor values you can email me and I will get you the info.

Mar 04, 2008 | Hitachi 43FDX20B 43" Rear Projection...

2 Answers

Hitachi 43fdx20b


well i had the same t.v. and u will have to set the picture tube which is really simple it ight seem hard but if you need an hand give me an call 1-403-362-2560 and ask for jason

Dec 17, 2007 | Hitachi 43FDX20B 43" Rear Projection...

1 Answer

Hitachi 43fdx20b blurred Picture


Yes this is a normal diagnoise. Just about every Tube type projection TV set ever made will one day need these IC's replaced. They are not really that hard to replace but you would need to know how to solder and unsolder on printed circuit boards, know the procedture, and then have a service manual handy to adjust the convergence after yoou replaced the IC's. If the tech works on alot of these types of TV sets's, most likely they could adjust them without having a service manua handy. This repair done by a pro should run you anywhere from 250 on up to 400 bucks depending on who does the repair and where. Good Luck

Mar 31, 2007 | Hitachi 43FDX20B 43" Rear Projection...

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