Question about Hitachi 51F510 51" Rear Projection HDTV-Ready Television

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51f510 picture yellow issue blue lens appears to

51f510 picture yellow blue lens appears to be weak although it does operate.

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  • 110 Answers

First try advesting the screen controls for each CRT.

The problem cound be OVERHEATED COMPONENTS ON THE CRT PWBs

Any of the following components could cause this: Q805 Q855 Q8A5 Q804 Q854 Q8A4 R815 R865 R8C5 R813 R863 R8C3 R814 R864 R8C4.

You did not give much information to work with it may be time to call a TV Tech.

Posted on Jul 11, 2009

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Posted on Jan 02, 2017

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Why does the lens comes out then goes back in and I cant take any pictures


Rosalie, try re-charging/replacing the battery. Although the lens comes out and retracts, the battery may be weak. good luck

Jun 17, 2014 | Canon PowerShot A570 IS Digital Camera

1 Answer

Tv is yellow orange color what is problem


The model indicated does not have a "bulb" as it uses 3 picture tubes.

Examine the picture with color set at zero---stand back and look= if the screen has a mostly yellow (all or part of the screen) you have bad Glycol in the blue picture tube(if need explanation ask) and a look in the lens of the Blue tube will confirm this.

If able with back off and a small mirror look in each lens--red picture, green picture and blue picture.

If the Blue looks like a floodlight with little or no image--bad glycol in that tube.

Jun 16, 2012 | Samsung HCN5527W 55" Rear Projection...

1 Answer

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...

2 Answers

Can i realine the lens myself it has a yellow tint and yhe lettering is out of focus


If you have yellow coloring on everything, this is not a lens alignment problem. Either you have a color balance problem (weak blue) or the coolant fluid in one or more CRTs is going bad. The coolant liquid is supposed be clear, but with age it breaks down and turns yellow.

First, unplug the set and remove the back. Use a mirror if you have to, but look down at the top of each CRT using a bright light. They should be colored red, green or blue, with no yellow to muddy the color. That's a quick check on the coolant condition.

You can replace the coolant, but be very careful not to spill any inside the set. Broken-down coolant can short out electronics and cause a lot of damage to the circuitry, especially in the high-voltage sections. Some people prefer to remove the CRTs from the set for this process, but that is a considerable amount of work. Others use kits with pumps to remove the coolant, and work inside the set with reasonable precautions - if there is enough room. There are a number of good tutorials on-line, or at least there were when I last looked two years ago.

I recommend getting the color right before attempting the focus. Bad coolant may scatter the light and fuzz up the picture, so check that out first and post back what you find.

If you have yellow fringes on otherwise normal colored objects, the blue convergence is off. This will also make lettering appear out of focus. Most RPTVs have a procedure for bringing up a convergence pattern (a grid of dots) using the remote control. The dots should all be white or have very little color fringing. Follow the directions, and make small adjustments, then check the effects all around the picture. Correcting one section may cause a change elsewhere. Use a ruler to make sure the dots stay in the right place; otherwise you may end up with a distorted picture.

Caution to other readers: do not try to adjust convergence if you have a "bow-tie" shaped picture in one or more colors. This indicates a convergence amplifier failure, which must be fixed first.

Oct 12, 2010 | Samsung HCN5527W 55" Rear Projection...

1 Answer

Hitachi 51F510 CONVERGENCE ISSUE


Check the Blue CRT drive board for defective solder joints especially at the CRT socket

Feb 03, 2009 | Hitachi 51F510 51" Rear Projection...

1 Answer

Crt's on model 51f510


this could be several things but I would try a greyscale alignment first.

Dec 31, 2008 | Hitachi 51F510 51" Rear Projection...

4 Answers

Nec projector vt 660


could be bad bulb is it setting in right is coler wheel freeley moving

Oct 06, 2008 | NEC VT47 Multimedia Projector

3 Answers

Blue Hue and lines on HDTV


what more can you describe as to the fault of the unit.is the blue hue there on all inputs and tuner mode and the lines are they also blue in color .

Apr 06, 2008 | Hitachi 51F510 51" Rear Projection...

1 Answer

White Screen


  1. Upon startup lens emerges but when screen appears it is white whereas it normally displays whatever the lens sees. When the shutter button is pressed the camera will focus and take a white picture which can be deleted. The camera does not flash although flash is set to automatic and photo taken in a dark room. Camera flashes (weakly) with flash set to manual on. Lens is unobstructed and appears to be perfectly normal. Camera was not dropped. Batteries have been changed.

Jan 19, 2008 | Pentax Optio E10 Digital Camera

2 Answers

Picture is yellow and green


Your missing the red drive on the set. Its most likly the picture tube. Its a possibility that the red drive circuit could be not working so the best thing to do is take off the gree picture tube socket and put the green board on the red tube. Of course do all this when the set is unplugged. if you have no tv experience. its not a good idea to be messing around inside of these sets.

Sep 02, 2006 | Hitachi 53UDX10B 53" Rear Projection...

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