Question about Hitachi 43UWX10B 43" Rear Projection Television

1 Answer

43UWX10B problem with green

Hello,

I have a 43UWX10B TV and replaced the convergence chips and checked the resistors. When I turn the TV on the Green is off. I can adjust the blue and red in every direction, but can not get the Green to converge....

My question is do the convergence chips have any control over the color Green? The TV looks like it is trying to self correct once the TV warms up and sometime the green does snap out of it. However if you turn the TV off and right back on the Green is messed up again.

Any ideas on what me goin on with this one

Posted by on

  • SODAK Mar 29, 2008

    I only have two convergence Chips and this is the first time I have ever seen the Green color out of whack on a RPT. I do not have the service manual for this TV and would like it if is not too much trouble.



    Thanks,



    SODAK

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  • Hitachi Master
  • 8,617 Answers

If you have a 2 IC convergence chassis they dont control the green , However if you have the 3 IC chassis the green is controlleed by the third IC these are usually STK4275 or simallar single amp ICs. Which type chassis does your hitachi have? Its possibly related to the digital convergence board if all resistor near the ICs are good. Do you have the service manual? I can post a link where you can get the full service manual if you need one

Posted on Mar 29, 2008

  • Sonny Berry
    Sonny Berry Mar 29, 2008

    heres a link to the manual. The site is often busy on friday evenings doing maintanance but keep checking back cause it doesnt take them long.

    http://servicemanuals.vstore.ca/

    Also most projections green is set and the other colors are controlled electronically. sounds like a resistor or leaky diode in the circuit going to the green convergence yoke.

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3 Answers

My hitachi model 43uwx10b has magic focas problem's red,green,blue and yellow are moon shaped across the screen


The two STK CONVERGENCE CHIPS AND ANY BAD RESISTORS AROUND THEM WOULD HAVE TO BE REPLACED.

Typical cost for all the parts on EBAY or Suburban Electronics would be under $25.

SD TECH

Feb 13, 2011 | Hitachi 43UWX10B 43" Rear Projection...

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Hi I have a teac CTM809SV crt tv and on any av input displays a blue and green color. Will pick up the channel ok but with a purplehaze.have tried turning off for 10 minutes but no luck-any tips...


Ur tv have a convergence problems.It dead.The tv convergence board require 2 STK convergence ICS and some or all it resistors to change to solved the convergence problems.The shop will cost u $300-350 for parts and labors.

Jun 29, 2010 | Hitachi 43UWX10B 43" Rear Projection...

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Hitachi 43uwx10b. How do i test resistors for convergence? i replaced i/c chips with upgraded stk394-160 and all resistors i was told rk42=3.3ohm/ rk46=1.8ohm/ rk50=2.7ohm/ rk54=1.5ohm/ rk58=3.9ohm/ and...


You have all the resistor are correct! Yes I can Tell you exactly what you need to know and How to Save settings after you adjust convergence, I have to pull out my manual on your hand unit Be right back. first you need to go to front of TV remove front bottom panel to where you can see the front of chassis on the board you replaced ICs there is a small blue contact button with TV on press and hold for 5secs Convergence Pattern should appear! You will need your hand unit to begin to adjust convergences.

Dec 17, 2009 | Hitachi 43UWX10B 43" Rear Projection...

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Manual Convergence adjustment on Hitachi 43UWX10B


I would guess you missed a open resistor--there are only about 12 of them--how did you check them?

This set (43uwx10b) has a tiny blue micro switch on the front of the chassis---if you engage it from the front the set will go into the DECAM or convergence mode--let me know the CLU number on your original remote and I will scan and paste instructions---98% of the time if the set is wacked out and will not adjust one of the resistors is gone---ONE OF THE CHIPS GETS THEM.

SD TECH

Oct 31, 2009 | Hitachi 43UWX10B 43" Rear Projection...

1 Answer

42 inch Hatachie Ultravision model 43UWX10B and


The magic focus will stop if there is a bad sensor and or a problem in the convergence circuit.

This set uses two STK-392-110 convergence chips--both along with any of the resistors that protect them need to be replaced and the set adjusted--I have repaired hundreds of these sets----


Confirm model number----and if you go into the customer menu and either red or blue will not move in any or some direction--the chips have to be replaced---LET ME KNOW WHAT YOU FIND AND I CAN GIVE YOU FAIRLY DETAILED INSTRUCTIONS ON WHERE TO GET THE PARTS AND WHAT IS INVOLVED IN THIS REPAIR.

I am here to help people--

REGARDS, SD TECH

Oct 10, 2009 | Hitachi 43UWX10B 43" Rear Projection...

1 Answer

Green wave on left top and center top in my 43FDX11B TV


replaced both convergence ics in the tv.also check for open resistors near the convergence stk ics.

Jul 17, 2009 | Hitachi 43UWX10B 43" Rear Projection...

1 Answer

Green color on my sony tv is not projecting right.


Your TV most likely a convergence 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.
Here are some photos of convergence problems.

3dc9420.jpg
645fba6.jpg
0dcec37.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.

0667c5f.pngSOLUTION

You will need to replace the convergence chips and possibly some convergence resistors and pico fuses. Its a fairly easy DIY job or you can call in a pro. If you want to do the repair yourself check the site www.TvRepairKits.com. Their kits include a photo instruction guide, original OEM Sanyo STK chips, convergence resistors, pico fuses, thermal paste, email/phone support, etc.

Jun 19, 2009 | Sony KP-51WS510 51" Rear Projection...

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Hitachi TV, has red ghost lines outlining image on screen! Help!


Your TV most likely has one or more possible problems.

Problem #1: 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
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.


Problem #2 CRT Fluid is Cloudy

Projection TV tubes have a liquid coolant that is used to keep them from overheating. After many years the coolant in the blue and green tubes will become cloudy and cause the screen to look dull, red/orange, etc. You may even see halos around images.

Picture of a set that needs the fluid changed.

578ba6c.jpg
TV set after fluid change

65af323.jpg

2c07611.pngSolution #2


What you will need to do is replace the coolant and clean the crt. You can get a repair kit from www.TvRepairKits.com that includes replacement coolant, photos. instructions, etc.

Apr 07, 2009 | Hitachi 43UWX10B 43" Rear Projection...

1 Answer

Hitachi 43fdx11b green wave on top left and center


Its likely that you did not find all the resistors that were damaged when the original failure occurred. Now you must re-replace the ICs and locate the other damaged resistors. Check all, including those you just replaced. Use a good ohm meter and be certain that all the resistors are gold band tolerant(5%) and of the exact resistance value and wattage.

michtech

Feb 15, 2009 | Hitachi 43UWX10B 43" Rear Projection...

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Hitachi hdtv model 43uwx10b is showing a green shadow on the left side of the pictures


Good Day;
If you order KIT 10 from B&D ENTERPRISES at 1-800-458-6053 The KIT will include all parts neede and layout of part value & locations on simple paper lay out diagram.

Good Luck, big IRISH.

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