Hitachi 57F500 57" Rear Projection HDTV-Ready Television Logo

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Posted on Mar 13, 2017

57F500 Magic focus #5

While watching tv the red is off to the right to a point of almost being a double image. When doing Magic Focus it has 3 red bars under the Magic Focus text  on the left. When Its done it gives me a #5 in the lower right of the tv. Magic Focus does nothing to fix the problem.
When trying to converge it manually it gets rather confusing. Trying to align the red back to center on one side pulls the other side even more out of whack.
I've almost figured out how to get it back to normal but it still isn't  right. It seems that you can only adjust from the sides and the middle?
The red is off in equal proportions and not wavy, just needs to be pulled back to straight.....

What is the best way to begin this process? Start in the middle, the bottom, the top?
Anything you can advise me would be great!

5 Related Answers

Anonymous

  • 232 Answers
  • Posted on Nov 27, 2007

SOURCE: convergence

you need to check your + and - 15 volt lines, sounds like you have bad convergence IC`s and at least one open or way up in value resistor in the convergence section.

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Vista Electronics

  • 1694 Answers
  • Posted on Feb 04, 2008

SOURCE: Magic Focus does not work.

Convergence issues usually resolved by changing convergence output amplifier IC's.....Original STK392-110 should be replaced
with upgrade Stk394-160E Hitachi part # CZ 01341,change both
for reliability.....check B+ feed resistors for over-heating....T.

Ekse

  • 13435 Answers
  • Posted on Jun 06, 2008

SOURCE: Magic focus, #5 Manual

Sounds like a Convergence IC problem, the convergence ics would need to be replaced. This can be done by yourself or a professional.

Anonymous

  • 255 Answers
  • Posted on May 28, 2009

SOURCE: Convergence problem, I think

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

ArnelM

Arnel

  • 184 Answers
  • Posted on Dec 29, 2009

SOURCE: I purchased a tv repair kit and replaced the

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

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Thanks for using FixYa and for the generous rating.

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this sounds like the convergence ic's need to be replaced that should fix the problem
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i think you need a tech .because all the users adjustment were tried.
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Just to clarify, it sounds like what you are saying is that the image appears to duplicate in either red or blue along the edges of the image (especially white lettering and probably increasing along the boarder of the TV). This is resolved by converging your TV. Convergence will drift normally on large screen projection TV's over time or through moving them. The Hitachi 57f500a has a feature called "Magic Focus" (pg 36 in your manual) which will auto converge the image. If the auto converge feature doesn't work, on page 37 in your manual, it explains how to converge manually. If you do not have the manual, I have the image of the pages below. If for some reason this doesn't work, please provide additional info and detailed prior to rating the help.
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Hitachi 43FDXO1B Convergence?

Manual Convergence for the Hitachi. YOU WILL NEED ORIGINAL HITACH REMOTE CONTROL. 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

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)


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Out of focus

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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Screen getting dark

Research at www.HitachiServiceUSA.com .......T.
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