Question about Hitachi 43UWX10B 43" Rear Projection Television

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Convergence I understand the word and can see the results, just need help how to remedy the problem. Interestingly enough, when the picture has a blue backgound, ie: a pool, the colors work fine. Please help!

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Convergence ICs are bad and possibly the resistors that are right next to them. They are located on a large heat sink and they have STK numbers stamped on them. These need to both e replaced for about 10.00 each at you will also need some heat sink compound available at Radio Shack.

Posted on Jan 25, 2008


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Tv out of foucs

These procedures are from the owners manual, go into menu and then picture quality and then: Convergence The Convergence feature lets you adjust the TV’s three tubes. When the TV tubes’ images are precisely aligned, they create the color images you see on the screen. Over time, the picture can drift out of alignment (this is normal). If your picture seems fuzzy or has a yellow tint, using Convergence could correct this misalignment. Only one convergence is needed for all inputs, regardless of the signal format. Note: Make sure the TV has been on for at least 30 minutes (TV needs to warm up for best results) before starting Auto Converge or Red/Blue Centering. When you select the Convergence feature, a submenu appears with three options: Auto Converge Automatically aligns the projection lenses to self-correct color images. You’ll see flashing squares of color dance across the screen (this is normal). Note: After performing auto convergence, use the Blue Centering and Red Centering menus to fine tune convergence in the center of the screen, if necessary. Blue Centering Aligns the blue and green images to fine-tune the picture. Red Centering Aligns the red and green images to fine-tune the picture. Note: The ability to change channels is disabled when adjusting the convergence options. The TV must be tuned to a usable signal to converge the picture.

Apr 23, 2010 | RCA HD52W58 52" TV

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I have a Philips 51PW9303 Rear Projection TV that had blue shadows around the sides of the screen and now has a green and red bowed line at bottom. Does I need a convergence board to solve this?

If the following doesn't work the tubes could be at the end of life:
Adjusting convergence:
Note: For best results, the Projection TV needs to be turned on for 15 minutes or longer before adjusting the picture tubes (convergence).

To adjust the convergence of the picture tubes:
  1. Press the 'MENU/SELECT' button on the remote.
  2. Press CURSOR RIGHT to enter the PICTURE menu.
  3. Use CURSOR DOWN and RIGHT to select and enter MANUAL CONVERGE.
  4. Press CURSOR RIGHT to select CONVERGE RED or press CURSOR RIGHT and DOWN to select CONVERGE BLUE.
  5. A crosshair will be shown on the screen. If there is any red or blue fringe around the crosshair, use CURSOR RIGHT, LEFT, UP, DOWN to try and merge the fringe colors with the crosshair.
  6. Press the 'MENU/SELECT' button to return to MANUAL CONVERGE menu.
  7. Press the 'EXIT' button to exit the menu.
If you are satisfied with the convergence you may stop now. Otherwise, you can continue and adjust the convergence more using mult ipoint convergence.
To Adjust multipoint convergence:
  1. Press the 'MENU/SELECT' button on the remote.
  2. Use CURSOR RIGHT to enter the PICTURE menu.
  3. Use CURSOR DOWN and RIGHT on the cursor ring to select and enter MANUAL CONVERGE.
  4. Press CURSOR RIGHT and DOWN on the cursor ring to select MULTIPOINT RED or MULTIPOINT BLUE.
  5. A grid of crosshairs will appear on the screen. If there is any red or blue fringe around any of them, press CURSOR RIGHT to enter NAVIGATE mode.
  6. Use CURSOR RIGHT, LEFT, UP, and DOWN to move to a crosshair that has a color outline.
  7. Press the 'EXIT' button to enter ADJUST mode.
  8. Use CURSOR RIGHT, LEFT, UP, and DOWN to merge the color with the crosshair.
  9. Press the 'STATUS/EXIT' button to return to NAVIGATE mode. Repeat as necessary.
  10. Press the 'MENU' button to return to the MANUAL CONVERGE menu.
  11. Press CURSOR DOWN until SAVE MULTIPOINT is selected.
  12. Press CURSOR RIGHT to save the multipoint settings.
  13. Press the 'EXIT' button to exit the menu.

Apr 03, 2010 | Philips 51PW9303 51" Rear Projection...

1 Answer

Hitachi 53UWX10BA HDTV with convergence problem for blue

No there are no quick fix options for this fault. The convergence amplifiers operate similar to a high power audio amplifier, so if there is an impairment anywhere in the system, it will result in distorted audio, or in the case of television convergence amplifiers, a color won't align. The convergence power pacs need to be replaced and the out of tolerance precision resistors located near the power pacs need to be carefully checked and replaced as necessary.

It is also possible that there are root faults that cause the amplifiers to go bad which include bad connections or a bad digital control module. This repair is possible for anyone having basic electronics knowledge and soldering skills.

Apr 28, 2009 | Hitachi 53UDX10B 53" Rear Projection...

1 Answer

Picture has a blue shadow

Seems convergence out IC is fried in TV so it gives blue shadow.

Check out Convergence Out IC which you need to replace in TV, if you have enough experience of repair of big TV, necessary tools and know basic electronics.

Dec 18, 2008 | Hitachi 51SWX20B 51" Rear Projection...

2 Answers

Philips nr.43pp7445/69

I don't understand you language but I think you need both convergence amplifier IC's replaced. I hope this helps.

Aug 17, 2008 | Philips 60P8341 60" Rear Projection...

1 Answer

Convergence problem

You need to replace both convergence ICs number STK392-110 youcan get replacements at the following link and they provide free installation instructions with pictures so you can do the job yourself . heres the link.

May 04, 2008 | Toshiba TZ50V51 50" Rear Projection...

1 Answer


Look for the STK ICs mounted on 2 big heatsinks.
I would suggest to replace both of them once you have the TV taken apart.
I think the part markings are STK392-040.
Let me know if you need further assistance.

Apr 29, 2008 | Philips 60PP9352 60" Rear Projection...

1 Answer

The BLUE crosshair will not focus,

go here
this is for sony but your should be close enough. you want to manually focus the blue gun.
please mark post fixya!

Feb 11, 2008 | Hitachi 53UDX10B 53" Rear Projection...

1 Answer

Blue shadow

Needs convergence circuit repair = replace convergence IC's,
then activate Magic Focus...............need step by step?......T.

Nov 30, 2007 | Hitachi 43F300 43" Rear Projection...

1 Answer

Convergence problem

sounds like convergence amps bad

Oct 23, 2007 | JVC AV-56WP74 56" Rear Projection...

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