Question about Hitachi 43UWX10B 43" Rear Projection Television

1 Answer

Convergense problem i have a hitachi model 43fdx20 with the red and blue colors out of alignment. the magic focus will not realine the colors. any help would be appreciated.

Posted by on

1 Answer

  • Level 2:

    An expert who has achieved level 2 by getting 100 points

    All-Star:

    An expert that got 10 achievements.

    MVP:

    An expert that got 5 achievements.

    Sergeant:

    An expert that has over 500 points.

  • Expert
  • 233 Answers

The color has gone crazy on you because your convergence IC's have gone bad.
These IC's operate at a very high temp, and usually only last 4-5 years. 
If you remove the back of the set, you will want to look for the BIGGEST heatsink in there, on that heatsink, you will see 2 lage IC's , probably STK392-110, or STK392-150's you can go on ebay to order the new ones, but MAKE SURE they are Genuine SANYO IC's and not counterfiet cheapies. the cheap ones may only last 2 months..
You will also need some "Heat transfer paste" - you can pick this up at radio shack.
Once you remove the old IC's, test all the large resistors near them.. pull one side of the resistor out of the board so you can check it out of circuit. they will usually have the value in Ohms, printed directly on the resistor, but you may have to use the resistor color code to find out what value they are....However, usually if there is any damage, the resistor will look like it has been HOT or fried. replace the IC's and any bad resistors, and you should be good to go.
If after replacing the IC's and any defective resistors, the convergence is still bad, make sure to use a multimeter to check ALL fuses on the boards, --- sometimes when the IC's go, they will take out a fuse to the convergence power supply. If you find any bad fuses, replace them accordingly!
Hope that helps!

Posted on Dec 21, 2008

1 Suggested Answer

6ya6ya
  • 2 Answers

SOURCE: I have freestanding Series 8 dishwasher. Lately during the filling cycle water hammer is occurring. How can this be resolved

Hi,
a 6ya expert can help you resolve that issue over the phone in a minute or two.
best thing about this new service is that you are never placed on hold and get to talk to real repairmen in the US.
the service is completely free and covers almost anything you can think of (from cars to computers, handyman, and even drones).
click here to download the app (for users in the US for now) and get all the help you need.
goodluck!

Posted on Jan 02, 2017

Add Your Answer

Uploading: 0%

my-video-file.mp4

Complete. Click "Add" to insert your video. Add

×

Loading...
Loading...

Related Questions:

1 Answer

Magic focus not working colors not aligning


If Magic focus will not correct it (it is the limited auto convergence for this set) both the convergence chips which should be stk392-110 or 150 will have to be replaced, convergence is done with the original remote with set in the Decam ( tech convergence mode).

The parts are not that expensive and TVrpairparts.com sells kits with instructions for these sets by model number.

Dec 10, 2012 | Hitachi 51S500 51" Rear Projection...

1 Answer

Magic focus --blue and yellow sag in the upper left area of the screen


This is a problem with the convergence circuit. If you can solder, you can repair this yourself. First try and resolder the pins on the existing convergence ICs. These are large black ICs attached to a heatsink and should be marked STKxxx. If the resoldering does not resolve the problem, replace the ICs.
Dan

Mar 22, 2008 | Hitachi 53FDX20B 53" Rear Projection...

1 Answer

Magic focus will not realign color. Red lines will not line up


Red Gun is out of alignment, need a tech to align color guns>

Feb 02, 2010 | Hitachi 57F500 57" Rear Projection...

2 Answers

I have a hitachi ultravision and the blue is off center.


your convergances amps ics have failed and need to be replaced alone with the 2 burnt resistors you will find then run magic focus

Nov 30, 2009 | Hitachi 53UDX10B 53" Rear Projection...

1 Answer

Hitachi 43fwx20b magic focus the 3 colors are not adjust.


First have the convergence IC's replaced these are the two large black IC's mounted on an metal heat sink.

Oct 24, 2009 | Hitachi 43FWX20B 43" Rear Projection...

1 Answer

Picture is out of focus. Tried Magic focus - didn't work. Saw color grid; appears blue is out of whack.


There are two common problems with these sets.

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...

bb0cf99.pnghttp://www.fixya.com/support/r2861467-solution_video_looking_whiteish_dull

Oct 18, 2009 | Hitachi 57SWX20B 57" Rear Projection...

1 Answer

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

Oct 02, 2009 | Hitachi 43UWX10B 43" Rear Projection...

1 Answer

Yellow and blue color ruins total picture on 50" tv,can't get rid


lupe0112,

I'm no expert, but I think that you have a problem with the convergence of the 3 color guns. I've been working on a similar problem. As a first step, have you tried "Magic Focus?" The Magic Focus button for the Hitachi 53UDX10B is at the left of the small front panel controls that also include your RCA composite and SVideo connectors. Let the set warm up for about 20 minutes (as recommended by the user guide), and then press the Magic Focus button. When you press the Magic focus button, the set will auto align the 3 color guns. If this doesn't fix your problem, unplug the TV for at least 4 hours and try again.

Jan 08, 2009 | Hitachi 53UDX10B 53" Rear Projection...

1 Answer

Magic focus


This might also be called digital array. You might have to do the manual adjustment with the cross hairs on the screen. These, one red, one blue, one green, should all align on top of each other in a white color. If this does not work, you should call 1-800-448-2244 for assistance in finding a local service center.

Jan 21, 2008 | Hitachi 43UWX10B 43" Rear Projection...

1 Answer

Color Alignment


get a shop manual,it tells how to do the whole convergence process and how to store it to the rom memory to save it.

Mar 15, 2007 | Hitachi 43FWX20B 43" Rear Projection...

Not finding what you are looking for?
Hitachi 43UWX10B 43" Rear Projection Television Logo

Related Topics:

110 people viewed this question

Ask a Question

Usually answered in minutes!

Top Hitachi Televison & Video Experts

Jaime Hernandez

Level 3 Expert

2296 Answers

The Knight
The Knight

Level 3 Expert

72650 Answers

matt martin
matt martin

Level 3 Expert

1207 Answers

Are you a Hitachi Televison and Video Expert? Answer questions, earn points and help others

Answer questions

Manuals & User Guides

Loading...