Question about Hitachi 57F500 57" Rear Projection HDTV-Ready Television

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The blue part of the picture is out of alignment with the rest of the picture. I tried magic focus but it didn't work. Even the blue grid in magic focus is mis aligned. Hos\w do i fix it.

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The fault described is the failure in the convergence section , it might look as the set is into out of focus with a possible 3 d efffect with no action of colour correction.
The Hitachi main board has the convergence secction comprising driver ICs.(series STK) I would advise you to check the board and look for possible dry soldering in the IC, solder the circuit and test.
Please confirm if you are familiar with attending on electronic circuits for further action.
Failure of the IC and replacement of possible fusible resistors in this section must be done with a voltage check on the circuit.

Please find some tips if you are trying for the first time .click for tips on checking TV.

Please respond.

Posted on Oct 10, 2010

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Posted on Jan 02, 2017

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1 Answer

How to remove grid


The blue button is not for magic focus on this model----the front grill beneath the screen can be removed and behind it is an inspection plate---the tiny blue button is at the front and to the left and with set on and it pressed the set will enter the decam mode----a grid of lines will show and then buttons on the original remote do different things to adjust convergence and then save the adjustments.

I convergence is way off don't try to adjust it as it will only make matters worse---usually the two chips need to be replaced and sometimes a resistor as well.

Nov 03, 2012 | Televison & Video

1 Answer

I purchased a tv repair kit and replaced the convergence ic chips to fix my convergence problem. put everything back together and now, no picture. I tried magic focus and it works great, the colors are...


As per statement, "the magic focus works great, the colors are bright and aligned" it means the tubes are working ..you need feed a signal to see the picture...the tv video goes muted without signal

Dec 29, 2009 | Hitachi 60SDX88B 60" Rear Projection...

1 Answer

Blue cast to screen and words at the bottom of screen run uphill.blue does not seem aligned to grid. magic focus did not correct. Can align red and green manually but not blue.


The IC /resistor in convergence circuit(blue) is bad

convergence output IC problem. convergence board would have to be removed - remove and replace 2 STK IC's and check the surrounding resistors. Shops usually charge between $200-$400 Be sure to vote/rate me if this helped Thanks!
See link for more detail
http://www.ehow.com/how_4575598_yourself-projection-tv-repair-convergence.html

Oct 21, 2009 | Hitachi 51F500 51" 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

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


Manual Convergence for the Hitachi. YOU WILL NEED ORIGINAL HITACHI REMOTE. NONE ELSE WILL DO
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

ONE COLOR WILL NOT MOVE. YOU WILL NEED TO MOVE OTHER COLORS TO ALIGN TO IT.
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

3 Answers

Looks like the picture is in 3D...magic focus won't adjust green


Replace Both of your STK ICs they are Big Black ICs Also CK and replace these resistors RK42 3.3 /RK46 1.8 /RK50 2.7/ RK54 1.5 RK54 1.5/ RK58 3.9 /RK62 2.2

Feb 15, 2009 | Hitachi 57F500 57" 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

Colors are separated on the top from the left to right


Probably the color convergence is off. I had a similar problem. Have you tried the magic focus button yet? That is located at left in the small front control panel. Power on TV, wait 20 min (according to user guide), then press the magic focus. If that doesn't fix the problem, you could try the service mode alignment procedure. But that's a little trickier. I don't have a link handy for that procedure right now, but will look for it if magic focus doesn't re-align your color convergence.

Jan 02, 2009 | Hitachi 53UDX10B 53" Rear Projection...

1 Answer

Blue/Yellow out of focus on Hitachi 43UWX10B


You will need the convergence circuit repaired......IC's replaced,
B+ resistors checked and then magic focus activated......T.

Sep 17, 2007 | Philips 60P8342 60" 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...

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