Question about Hitachi 46F500 46" Rear Projection HDTV-Ready Television

1 Answer

Rear projection tv

Blue and yellow out of focus in semi circle at top and bottom of picture

Posted by on

1 Answer

  • Level 2:

    An expert who has achieved level 2 by getting 100 points


    An expert that got 5 achievements.


    An expert who has written 50 answers of more than 400 characters.


    An expert who has answered 200 questions.

  • Expert
  • 211 Answers
Re: rear projection tv

You Tv has a bad chip ( I recommend you replace both on the convergence board ). 80% or more of the projection sets I get into my shop have this same problem and by replacing the convergance chips, it normally corrects the problem. If you are going to preform the repair yourself, be sure to use lots of heat sink grease to prevent the problem from happening again and I always suggest you use the original chips ( same numbers ) as the after market parts don't always work well. As a pre caution, always remember to unplug the set before doing any work inside the set. Good Luck
NC Electronic
Mills, Wyoming

Posted on Jan 08, 2008

Add Your Answer

0 characters

Uploading: 0%


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


3 Points

Related Questions:

1 Answer

Colour has screwed up

Call Encompass Parts Distrubtion 1-800-638-3328 its either your DMD board 180.00 or Light Engine and they do not have any in stock Cost $1,056.00 Try UED 1-800-648-6657>

Dec 31, 2009 | Samsung HLN5065W 50" Rear Projection...

1 Answer

Hdtv with yellow half circle on bottom of screen

Odds are real good that the cooling fluid in the blue picture tube assembly has become contaminated. Only solution is to pull blue crt and dump out old fluid and clean and reinstall new fluid. Once done a fair amount of re-alignment is required. This is not a job for a do-it-yourselfer. Most tv shops would charge in the area of $250 to $300 for this repair.

May 01, 2009 | Panasonic PT-56WX53 53" Rear Projection...

1 Answer

Distorted Color and geometry of Picture

replace stk 392-110 ( or stk 392-150 same number) , check resistor 2.2 ohms for open or burn beside STK IC's

Apr 13, 2009 | Panasonic PT-47WX53 47" Rear Projection...

1 Answer

I have a 53 in. sony projection tv,. bowed picture tubes?!?

Replace Both STK convergence ICs will have part number on them STK392-560 use same part number on your STKs. Also around ICs ck pico fuses 5/6amps they are green or yellow.

Jan 07, 2009 | RCA P56930BL 56" Rear Projection...

1 Answer

Blurry, Multi-Color, Multi-Line

covergence problems and its not adjustable you need work done on the convergence board or a new board and realignment which can be timely.

Nov 01, 2008 | Samsung DLP HL-P4663W 46" Rear Projection...

1 Answer

RCA HD52W59 Projection Big Screen TV

you have cold solder conections if you know how to solder you can fix it with a good light

Oct 14, 2008 | Sony Grand WEGA KF60XBR800 60" Rear...

1 Answer

Blue circle across top of tv screen & maybe some yellow

Good Day,

Does the blue spot have tin white lines?? Is there a picture behind the 'circle'? You may a blue crt (tube) problem.

Jun 06, 2008 | Hitachi 53UWX10B 53" Rear Projection...

1 Answer

Problem with picture

check there are no magnets near the tv ie speakers etc,

May 01, 2008 | Hitachi 53UDX10B 53" Rear Projection...

1 Answer

Picture Problems with Hitachi 53" Projection TV

most tv shop's will replace convergence ic's,which your tv needs.Thepart number is stk392-180 very common You need 2 plus poss resistors,3 bucks apiece

Mar 20, 2007 | Hitachi 53UDX10B 53" Rear Projection...

1 Answer

Horizontal hour glass picture

The convergence Ics need replaced. In Hitachi, resistors and sometimes a coil needs replaced as well. The convergence/deflection PCB is available, but, the cost of that board is higher than having a servicer come to your home and repair the unit to component level. If you are not familar with this circuit, then call a servicer. Have them replace both ICs not just one. Make sure they are repairing to component level and not replacing the board. Hope this helps.

Dec 16, 2006 | Hitachi 43FWX20B 43" Rear Projection...

Not finding what you are looking for?
Hitachi 46F500 46" Rear Projection HDTV-Ready Television Logo

Related Topics:

48 people viewed this question

Ask a Question

Usually answered in minutes!

Top Hitachi Projection Televisions Experts

Jaime Hernandez

Level 3 Expert

2267 Answers

matt martin
matt martin

Level 3 Expert

1187 Answers

Donald DCruz
Donald DCruz

Level 3 Expert

17129 Answers

Are you a Hitachi Projection Television Expert? Answer questions, earn points and help others

Answer questions

Manuals & User Guides