Question about Hitachi 51F500 51" Rear Projection HDTV-Ready Television

1 Answer

The Magic Focus does not work anymore.

The magic focus doesn't work and when it is actuated, it starts to go through it's function, goes quickly through the colors and then a blue #5 shows on the screen. The color is also degenerated.

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  • Hitachi Master
  • 3,459 Answers

The convergence has failed on your TV and will need to be repaired. You can call a shop or do it your self with a convergence repair kit from sites such as www.TvRepairKits.com . This is a failry common problem that all projection TV sets will have at some point.

Posted on Apr 30, 2013

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Posted on Jan 02, 2017

experttv
  • 203 Answers

SOURCE: hitachi tv magic focus does not work

Your problem is the convergence circuit. This is very common in CRT projection sets like yours. There are a couple of IC's that need to be changed and possibly some resistors. A good repair shop will run you $400-$500 to do the repair.

Posted on Oct 28, 2008

  • 29 Answers

SOURCE: will not show red color in picture, magic focus shows red though

You have a projection light element out. I had the green element go on mine. I had a service agreement so a repair tech changed it.

Posted on Feb 07, 2009

SD Tech
  • 14553 Answers

SOURCE: Hitachi 43wx20b 43 in. - good picture except for

OK--for a Hitachi2.gif this set is a little unusual---it uses two of the STK-392-120 CONVERGENCE CHIPS.

Oneor both are bad(usually just one) You need to replace both and anydiscolored resistors around them--all the resistors have locationnumbers and if any are even slightly discolored you need to replacethem and both chips---You can buy a pair of these chips on Ebay forless than 13 dollars plus shipping.

If you remove the back cover (unplug the set first!) look at the circuit board2.gifon the far right side----about 4 inches wide and about 12 inchesdeep---the chips are on the far right side on the large metal piecewith fins.

If you look and find any of the resistors behind them(on the left side of the metal with fins) discolored---note thelocation number printed on top of the circuit board under them (RK46etc) and I can tell you the exact value of that part--most of theresistors that fail are low value and can be tested just like afuse--It is important to find any bad resistors as if you replace thechips and miss any open resistors the set will still have the sameproblem.

THIS IS A EASY SET TO DO THIS REPAIR ON IF YOU KNOW HOW TO SOLDER---I CAN GIVE YOU INSTRUCTIONS IF YOU NEED THEM.

THISKIND OF REPAIR TAKES ABOUT 1 HOUR--THEN YOU ADJUST THE SET WITH THEORIGINAL REMOTE--set should be good to go without having this troublefor 5-8 years.

Let me know if this information helps you---If you are not able to do the repair let me know and I will give you advice


SD TECH

Posted on Oct 14, 2009

Testimonial: "Thank you so much. You have diagnosed my issue very clearly. I have a friend who can solder. I will pull the back panel and check out resistors."

ladywinn
  • 5138 Answers

SOURCE: blue colors no magic focus stop at blue colors

Check the resistor in front and back of Convergence ICs. STK392-110s. the ICs might need to be replaced also. Look for poor solder connections also.

Posted on Oct 09, 2012

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If your magic focus is not working your convgence has failed. Read this Tips page here on fixya for more details.

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What does it mean when you get a error code 5 when you are doing the magic focus?


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in the menu first check if focus is set to auto or manual, need to be auto, if it is then pop off the front cover and acess panel with TV on cafefully press small button on signal pcb front edge, this is service mode, press pip mode,then pip channel after intialize turn TV off then on, function should be restored.

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Is there a Magic Focus function on 53XDF01B?


The correct model is 53fdx01b. There is a mogic focus button on the front of the set. Procedure for Chassis DP05F, DP05, HP11, HP12:
1. Press and hold the DIGITAL ARRAY or CONVERGENCE ADJUST button on front panel.
2. While the button is held down, then press the INPUT or ANT button on remote control.
3. The unit will now be in the DCAM.
NOTE:
1. Proceed with digital convergence adjustment.
2. Remember to save the correction data.
3. Units with MAGIC FOCUS only - Failure to initialize MAGIC FOCUS sensors after saving
convergence correction data will result in a STATIC (+) display when MAGIC FOCUS attempts
to run. The technician will then be required to access the service only switch behind the front
cover to get back into the DCAM to initialize the sensors, since the procedure to access DCAM
without removing the front panel, requires MAGIC FOCUS to be running.
4. To exit, press the POWER button on the front panel.

Apr 23, 2009 | Hitachi 53UDX10B 53" Rear Projection...

1 Answer

Will not show red color in picture, magic focus shows red though


You have a projection light element out. I had the green element go on mine. I had a service agreement so a repair tech changed it.

Feb 07, 2009 | Hitachi 43UWX10B 43" Rear Projection...

2 Answers

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.

Feb 04, 2008 | Hitachi 43UWX10B 43" Rear Projection...

1 Answer

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

Dec 14, 2007 | Hitachi 57F500 57" Rear Projection...

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Magic focus


That's a DP23 chassis, why replace the deflection board? Does magic focus come on the screen? Does it just no converge the picture? If so, it's likely that the convergence amps have failed.
That unit takes two STK392-110 Sanyo built Ics at board position Ic04 & Ic05. If you replace them I'd upgrade to the STK392-150's for greater reliability.
Bill

Dec 13, 2007 | Hitachi 51F500 51" Rear Projection...

1 Answer

Wont turn off, goes to magic focus


enter your menu set up and turn off auto focus and see what happens then,also check your other settings while your there.

Sep 09, 2007 | Hitachi 51F500 51" Rear Projection...

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