Question about Hitachi 53UDX10B 53" Rear Projection Television

Convergence I have a weird problem on my hands. First I tried magic focus but it would not go past red and displayed a number 4 in the corner. Then I went into manual convergence and I noticed that red and blue would not move. After researching on the internet I found out that the most likely culprit was the convergence ICs. I bought 2 new ICs and installed them and when I turned on the TV the power LED started blinking. I removed the new ICs and replaced it with the old defective ones and the TV turned on with the same convergence problem. All resisters and so on look fine and tested good with a multimeter. Any help is greatly appreciated.

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3,130 Answers

Your going to need to check the schematic and check the b+ going to the IC's as there maybe a bad capacitor. When the new IC's are installed it loads down the set or power supply. Its the bad power supply or the IC's are defective, but im thinking the power supply.

Posted on Aug 13, 2006

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My TV is the Hitachi model 51UWX20B and tried using magic focus to line up red color. Picture looks like 3D with red off center. When using magic focus it gets to the red phase and it shows the number 5...

You need to replace the STK ICs which are Convergence ICs STK392-110 use 120s or 150s
also check the small ohm resistors around ICs . They are Big Black ICs and will have part number on them ,should be located on the Right hand side of Chassis .
Mats Eletronics has Parts 1-800-628-1118 Convergence IC Kit.

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My Hitachi 50UX26B/27K red picture tube seems to be out of line with the blue/green tubes. When I press the magic focus it runs a short 30 second cycle then displays the number 3 in the bottom right hand...

Your convergence is fried go to ebay and order this item number 130475189383 copy n paste and put in ebay search.You will also need a delsolering iron, a soldering iron, some kind of skill soldering and patience.

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My hitachi keeps showing red and blue bands. when

Replace your convergence ICs they are big black ICs will have part number on them STK392-110s use 150s better ICs Mats has them 1-800-628-1118 also CK Low ohm reisitors 1.5ohms and up 3.9 ohms

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1 Answer

Goes through magic focus than in the middle stops and displays #5

This is a common problem. Its called a convergence failure.

Problem #1) Convergence

Symptoms:

Screen Looks 3D
Colors wont align
Video may look distorted

Problem #2 CRT Fluid has clouded over. Symtoms

Dull looking video
White looking video
Halos around objects
Red/Orange looking video

You can see some examples and find a fix here...

http://www.fixya.com/support/r2861467-solution_video_looking_whiteish_dull

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Colors are not aligned Magic focus ?

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

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1 Answer

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i think you need a tech .because all the users adjustment were tried.

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Convergence issue Hitachi HDTV Model #53uwx10ba

you have a sensor problem to start magic focus is the last step in this repair done normally after replace converge outputs did you do this? if so a manual alignment is needed then you may write it into memory if you get a solid green screen after just briefly you have done it wright if you get a red screen after wards you need to try again it will stop on red if all is not well

Oct 08, 2008 | Televison & Video

1 Answer

IMAGES ARE OVERLAID AND NOT IN FOCUS

Here is the schematic diagram. Download all the 13 parts and unzip them using winrar.
The parts you need are listed on page # 50 of the schematic diagram.
You will find the ICs HERE.
Make sure you check the fuses and micro/pico fuse nearby the ICs, as well some crystallized solder joints.
Good Luck.

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Rach, if it doesn`t move from green to red to blue in Magic Focus then there is a problem with the convergence IC`s and probably one or more support resisters. These components will have to be replaced, questions? ask away, BMW Rider

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