Question about Hitachi 43F300 43" Rear Projection Television

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Picture problem on Hitachie 43F300

There is a blue reflection coming across the middle of the screen, its mirroring the main picture

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  • Anonymous Dec 09, 2008

    I have a blue arch over the top 8 inches of the screen. how much does the blue tube cost to service??

  • big Daddy D Dec 09, 2008

    I have this same problem, how much does it cost to fix?

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Your blue tube has a fault and needs to be serviced

Posted on Nov 05, 2008

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My tv screen when on turns yellow then after a while it will switch back to normal colors what can be wrong with it....


Televisions covered: all Projection with yellow picture, but not Projection TVs with a yellowish tint surrounding objects in a nearly normal picture.

Yellow = red + green
normal picture = red + blue + green (RGB). See illustration.

12_27_2011_5_00_56_am.png

Fig. 1 Additive color mixing in an RGB monitor, or RGB Projection TV.

The circuitry powering your blue output, or the blue light engine itself is starting to fail.

Operating Theory:

The lamp module shines a bright light into the optical unit; there are a series of lens and baffles, and at the top of the light engine, a lens puts the picture into a mirror which is reflected onto the screen; All video and color is processed thru the light engine. Blue most commonly fails first, leaving a yellow picture.

Dec 26, 2011 | Mitsubishi WS-55805 55" Rear Projection...

1 Answer

It shows picture not in full screen like the movies black screen at top,in middle is the picture,black screen at bottom


If this happen on DVD's it is because the DVD is formated to Widescreen, 16x9 size, your TV is 4x3 size. Unless the Menu has an option of Picture size, or Format, to set to Full screen. there is nothing you can do other than be sure to check the DVD for picture format size before purchasing.

Sep 28, 2009 | Hitachi 43F300 43" Rear Projection...

1 Answer

Yellow stripe across middle of the picture


yes rteh color of the wires(ends)red,blue,green,sounds like they may ahve gone bad or are interchanged, what does it do with a dvd picture

May 23, 2009 | Hitachi 42V710 42" Rear Projection HDTV

1 Answer

Mitsubishi VS-1561


Sounds like you need to clean the lenses and reflective area inside your set. It is easy and all you need is a screwdriver, windex and a paper towel. UNPLUG YOUR TV.   Take off your screen and screen protector and safely set them aside. 
Clean only the lenses ( glass part) and the reflective mirror type area on the top of the inside of your set.  It will look like new. You need to do this at least once a year. 

Jan 05, 2009 | Mitsubishi WS48511 48" Rear Projection...

1 Answer

Hitachie 43F300 blue tube


the tube is about 600.00 or so you can buy a new tv for that price thses days...my choice would be to otp for a new tv

Nov 05, 2008 | Hitachi 43F300 43" Rear Projection...

1 Answer

Hitachi 43F300 43 in. Rear hrojection TV


you possibly have a deflection or convergence fault.

Jul 27, 2008 | Hitachi 43F300 43" Rear Projection...

1 Answer

Blue streaks across picture


Can you describe in a little more detail what the symptoms are? Are the streaks thin lines or are they large thick swashes of Blue? Is yur video still visible? Sounds like it may be the blue convergence amps or the resistor tied into the amps. is there anyway you can post a picture of your screen distortion?

Jan 26, 2008 | Pioneer SD-533HD5 53" Rear Projection HDTV

1 Answer

Convergence issue resolved but concave picture remains


Set will need new convergence IC's.Requires chassis pull===technical & mechanical skill mandatory.After repair,re-aligment necessary.

Sep 26, 2007 | Philips 55PW9363 55" Rear Projection...

2 Answers

PT-47WX, Blue streaks across the screen?


It is not a bulb. It is a picture tube. If there are thin blue lines across the entire screen, not just the edges, and the picture itself looks too blue, it means that the blue picture tube is being driven too hard. This could be because the blue screen voltage is too high, the boost voltage on the blue picture tube is too low, or the video output is leaky or shorted. If the picture has what looks like blue arcs and double images on one or more sides of the picture, it means that one of your convergence IC's has burned out and needs to be replaced. These are things that should be tested and serviced by a qualified tech, so allow an experienced tech to handle it for you.

Sep 07, 2007 | Panasonic PT-47WX49 47" Rear Projection...

1 Answer

GE 46GW945


Your problem is a bad main filter, a regulator IC ,and or a combination of a convergence problem along with a vertical IC going bad. This set is not something you should mess with unless your a trained tech. Please seek a pro to assist you with this repair. good Luck

Jul 28, 2006 | GE 46GW945 46" Rear Projection Television

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