Question about Hitachi 43F300 43" Rear Projection Television

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Hitachi SP-43W magic focus

I have this tv and the magic focus only fixes the problem for a few minutes,then its all messed up again. i need to know how to get into the service menu or any other way to fix this problem.

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  • Anonymous Mar 29, 2008

    the screen has a green line in the center and the picture is doubled



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Remove front grill assy to front of the internal pc boards.on your left side ther is a blue rest button mounted on the convergence board this is the eprom rest ,unless yuo know and have the service manual do not rest the eprom at this time. look at your front control panel to see if thers a small hloe and if so you need a thin rod to acitvate the button inside. again the service book will help /

Posted on Aug 22, 2007


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The red will not align up in our Hitachi model 51UWX20B with magic focus done automatiaclly or manually. When the red first started to go out of line we did magic focus and it worked. then after turning...

You have a bad convergence board. You will have to remove the convergence board. If I remember,this board also has the flyback transformer mounted on the same board. It is quite complicated to pull this board. You will need to use different colored permy markers to remember how to reconnect the cables and connectors. The ICs you will replace are the STK-392-110 and STK-392-150. You will resistors that are low ohms (under 10 ohms) at two watts. They may be 1.5, 1.8, 2.2, 2.2, 2.7,3.3,3.9, and 4.7 ohms. For a full detailed instructions and photos see the website, Be sure to have your model number handy and follow the instructions on this website. I have repaired many TVs using this site. Thanks for asking and show all hands of support!

Apr 07, 2011 | Hitachi 51UWX20B 51" Rear Projection...

1 Answer

Hitachi sp-46w - picture is fuzzy, ran magic focus and stops 1/2 way in the green. A code appears at the bottom right "5" any clue?

Ur convergence,it dead,need it replaced,Know how to solder?Buy a convergence kit,tries Tv repair,Tv repair kits.

Nov 24, 2009 | Hitachi 46F500 46" Rear Projection...

1 Answer

Magic focus works briefly, then the tv is out of alignment

You need to replace the convergence chips and possibly some of the convergence resistors. You can buy the parts online from various sources or you can get a complete kit with instructions from

Apr 19, 2009 | Hitachi 53UDX10B 53" Rear Projection...

1 Answer

I have 46ux13k hitachi tv and i need to know if there is atrick to adjusting the convergence.

1. Receive an NTSC signal.
2. Press Magic Focus to begin magic focus
3. Press magic focus again during the magic focus process to get the “stop” screen.
4. While stop screen is up, press STATUS or INFO on the remote control (R/C) to bring you to DCAM mode and the service grid (64 point grid).
5. When you first get in here? I believe red is the selected color by default (it is flashing).
6. To choose other colors to converge, use the following buttons on the R/C:
· “STATUS” - Green
· “0” - Red
· “ANT” – Blue

7. Start from the center of the screen and work your way out on one color at a time. I adjusted red across the whole screen to match green. Then I switched to blue, and adjusted that to green as well. After you adjust blue, you
may want to go back and adjust some red again? etc. until the convergence looks good.

· Use 4, 6, 2, and 5 on the R/C to move the cursor position (dotted lines).
· Use thumb stick to move the convergence point color.

Then going along the lines and adjusting, you may run into the problem of getting an ‘S’ curve on the line. You’ll know if you get there. Basically, no matter what you do to adjust the line to be converged, the middle of the line between the points will not straighten out (it bends between the points). To fix this, the manual recommends going to the (7x5) mode which gives you less points to adjust. I had this problem, and the solution worked. There is also another mode (3x3) which gives you even less points. Basically, if the set looks good, you only fine tune it in (13x9) mode (64 point). If you have serious problems, the grids work as:
3x3 – ‘coarse’
7x5 – ‘medium’
13x9 – ‘fine’
10) To get to each of these patterns use the following on the R/C: (only if you need to)
1. (3x3) Press “STATUS” 5 times (only works when DCU is in uncorrected state)
2. (7x5) Press “0” 5 times
3. (13x9) Press “ANT” 5 times
11) If you adjust the 3x3, then you should go to the 7x5, and then the 13x9. You get the point… depending on where you start, work your way up, and always finish on the 13x9
12) When finishing up the 13x9 mode, to get additional ‘grids’ on the edges of the screen, press the PIP CH button on the remote control while in the digital convergence adjustment mode (DCAM). Fine tune the edge convergence as necessary. To exit, press PIP CH again.
13) When convergence is acceptable, press PIP MODE to write data to ROM memory. ROM WRITE? is displayed to alarm system that ROM will be overwritten with new data. Press the PIP MODE button again to write displayed data to ROM.
14) DATA WRITE TO ROM will take approximately 4 seconds and no picture will be displayed.
15) Green dots will be displayed when operation is completed.
16) Press MUTE to return to convergence pattern, then confirm again convergence is acceptable.
17) Turn power OFF.
18) Wait a few seconds. Turn the TV on, and you should have your normal signal. Press Magic Focus button just to make sure the magic focus still works (and that you did the last few steps properly)

Mar 21, 2009 | Hitachi 43FDX01B TV

1 Answer

No color only black and white picture

one of your color tube has gone out on you.

Jan 25, 2009 | Hitachi 43F300 43" Rear Projection...

1 Answer

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


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

My tv

the tube could be weak or you may just need to have it reconverged so the color will go back in place

Jul 04, 2008 | Hitachi 43F300 43" Rear Projection...

1 Answer

Hitachi TV Problems

convergence ic bad

Dec 23, 2007 | Hitachi 43F300 43" Rear Projection...

1 Answer

Won't turn off

Go to the panel (on the tv set), hit magic focus on there....then hold power button for several seconds long. It should go off and fix your problem.

Jan 22, 2007 | Hitachi 46W500 46 in. TV/DVD Combo

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