Question about Hitachi 43FDX20B 43" Rear Projection Television

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Convergence IC's Do the convergence IC's stk 392-150 for IK04 and IK05 come in a kit together or are they seperate? I also saw that stk 394-160e is also a replacement?

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  • Hitachi Master
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Stk 394-160 are the better IC and they are available in the DP15H Upgrade kit at the following link.
http://servicemanuals.vstore.ca/

Posted on Nov 27, 2008

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HITICHI 43FDX01B SEEING DOUBLE


Bob, IK04 & 05 are the board designation numbers for the 2 stk 392-150`s, these are the convergence ic`s in your set and from your description that convergence circuit has failed again. They are high failure ic`s but usually last 5-6 yrs. not 1, if they were generics not originals then it wouldn`t surprise me but only the tech that installed them can answer that, do you have experience soldering & un-soldering ? If you don`t you can`t do this yourself, takes a good tech approx. 1.5 hrs to do, get back to me with more info and I`ll try to help you, video-tek

Jun 05, 2009 | Hitachi 51UWX20B 51" Rear Projection...

1 Answer

Convergence issue


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 inlcludes a photo instruction guide, original Sanyo STK chips, convergence resistors, pico fuses, etc. Everything you need to fix it yourself. Its an easy fix. 


Jan 06, 2009 | Sony KP-57WS510 57" Rear Projection HDTV

1 Answer

How do i dissassemble the board which has the stk392-560 ic


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.

Sep 11, 2008 | Sony KP-57WS510 57" Rear Projection HDTV

1 Answer

Green cruve line


Good Day;
Suspect Convergence IC's STK4274, part Number 2003191. Replace all three IK04(red), IK05(green), IK06(blue).
Good Luck, big IRISH.

Aug 30, 2008 | Hitachi 50UX26B/27K 50" Rear Projection...

1 Answer

Convergance problem


vin, board replacement is BIG bucks, IF it`s available, convergence IC`s are located on a large silver colored aluminum heat-sink, on the board they will be marked IK04 & IK05, they are probably STK 392-110`s or STK 392-150`s, those 2 will have to be replaced, check all of the low Ohm resistors lined up in front of the IC`s for dis-coloration, replace any that look slightly burnt with the EXACT rating or the new IC`s will fry, if you have questions e-mail me back, If you are not proficient at soldering & un-soldering and if you don`t have a good voltmeter, don`t attempt this repair yourself, BMW Rider

Dec 27, 2007 | Hitachi 51F500 51" Rear Projection...

2 Answers

PT-53WX52


Your TV most likely has a Convergence Chip 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.
701cb04.jpg
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2c07611.pngSolution #1

You need to replace the convergence chips and convergence resistors. Check the site www.TvRepairKits.com. They have put together convergence repair kits for most models.

The kits include a photo instruction guide, original OEM Sanyo STK chips, convergence resistors, pico fuses, thermal paste, etc. Everything you will need to do the repair yourself.

Dec 02, 2007 | Panasonic PT-53WX52 53" Rear Projection...

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

Everything looks like a 3-D movie!


Replace convergence IC's IK04 = STK392-150 and IK05 = STK392-110. Also check resistors RK42,RK46,RK50,RK54,RK58,RK62 for burnt/discolored.

Aug 20, 2007 | Hitachi 46F500 46" Rear Projection...

5 Answers

Convergence problem


That unit has a convergence repair kit that should fix most problems. Order it directly from Hitachi p/n# X480295. It contains: Rk42 3.3 Ohm 1w Rk46 1.8 Ohm 1w Rk50 3.3 Ohm 1w Rk54 1.8 Ohm 1w Rk58 3.9 Ohm 1w Rk62 2.2 Ohm 1w Ik04 Stk392-150 Ik05 Stk392-150 And I would strongly recommend testing all the resistors in that circuit for change in value. Are you using a good heat sink compound on the STK's when you installed them? That and ordering the japanese knock-offs for STK's are the two most common critical mistakes made. Originally that unit had two STK392-110's for conv. amps. Even Hitachi recommends subbing to a STK392-150 or 180 for greater reliability. You do realize that for the cost you have after two failed attempts you probably could have taken this to a reputable shop and watching the ball games now. :) (no disrespect intended) Good Luck! Bill

Jun 01, 2007 | Hitachi 53UDX10B 53" Rear Projection...

1 Answer

Hitachi 43FDX01B rear projection TV


It is adjustable only in the technician menu. You will most likely need to replace the convergence IC's in the TV. This is a very common issue. The locations are IK04 & IK05 and are generic part numbers STK392-110's.

Mar 10, 2007 | Hitachi 43UWX10B 43" Rear Projection...

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