Question about Hitachi 46F510 46" Projection HDTV

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Everything has a halo

My JVC projection tv sems to be out of focus. Everything has a halo around it.

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You will have to inspect the convergence circuit. See if there are burns on the capacitor or there could be a problem with the circuit itself.

Posted on Sep 27, 2009

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Remove purple haze around edges


The set needs to be focussed and reconverged. The red and blue images combined make a magenta/purple image. Adding green makes it white. Depending on the type of TV, if it's a CRT projection TV then there's an electronic focus control for each of the three tubes as well as the mechanical adjustment of the optical lenses. Given the description, then I'd have a look at the electronic focus first. A sudden shift in focus suggests that something in that circuit has given out. This would cause the red and blue images to go soft enough to create a halo around objects on screen.

Sep 12, 2014 | Televison & Video

1 Answer

Double faces with red 'halo' around people...after TV 'popped' and went off then back on.


Replace the convergence ICs and resistors. You can get the JVC repair kit called the AV48WP30 - AV65wp30 convergence repair kit from www.tvrepairworld.com which contains the ICs, Resistors, and the CD with repair instructions.

May 25, 2011 | JVC AV-56WP30 56" Rear Projection...

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I have a 53" Hitachi Rear Projection TV, Everything works except the color. The 3 color projection lamps are functioning and all of the tv's focusing features appear to be functioning as well. It has a...


Projection TV sets are known to have two common problems. The first problem that is common to these sets is convergence failure. When this happens the TV will usually look 3D, Wavy/Distorted, etc. It may also shutdown and blink an error code.

The second common problem with Projection TV sets is dull video, halos around objects, white looking video, or red overpowers the screen. This is commonly caused by the fluid in the lens being clouded overs.


You can find more details and solutions here on Fixya at the following link below. Or click HERE


3d884ac.pnghttp://www.fixya.com/support/r2861467-solution_video_looking_whiteish_dull

Oct 14, 2010 | Hitachi 53SBX59B 53" Rear Projection...

1 Answer

Projuctors need to be adjusted


there is a convergence pattern generator built in to the set for alignment.if it is a color halo around writing or solid objects you need to align the pattern so it makes one grid of white lines.if a gun via the lense is out of adjustment because the set was moved,that is a different issue.on the side of each lense is a lock nut.loosen the nut and the focus and position can be adjusted .

May 23, 2009 | JVC AV-65WP74 Rear Projection Television

1 Answer

White halo on picture


Projection TV tubes have a liquid coolant that is used to keep them from overheating. After many years the coolant in the blue and green tubes will become cloudy and cause the screen to look dull, red/orange, etc. You may even see halos around images. 

What you will need to do is replace the coolant and clean the crt. You can get a repair kit from www.TvRepairKits.com that includes replacement coolant, photos. instructions, etc.



Jan 25, 2009 | Televison & Video

1 Answer

Picture problems and need service manual.


http://www.justmanuals.com/samsung-projection-receiver-hcr4755wx-parts-service-p-25530.html

$9.99

Apr 19, 2008 | Samsung HC-R4755W 47" HDTV

2 Answers

Rca p52754at projection tv


A halo as youre refering to usually means your coolant in the effected tube needs replacing. Can be purchased at http://electronix.com/ . Let me know if I can be of any further assistance.

Jan 03, 2008 | RCA HD52W59 HDTV Projection Television

1 Answer

Hitachi rear projection


without knowing the model number, i can only give you some ideas on what to check.

If the tv was working fine, and started experiencing the problem after being moved, check your focus. you may or may not have an electronic focus pot on the rear of the tv, and you should have a manual focus located on the lens assembly, loosen the wingnut and rotate the lens to focus it.

also check the crt coolant level, if it has a bubble in it, it may be causing the red halo effect.

if the red is to the top or side of the characters and not completely surrounding them, it may be a convergence issue, check the manual for convergence procedures, if it does not have them, your best bet would be to take it to a service tech.

Nov 15, 2007 | Televison & Video

1 Answer

Green "halo" around the bright white images


I have a Samsung HCM5535W rear projection TV that had pretty much the exact same problem-- a green halo around bright white images. I researched it on the net, and determined the most likely problem was with the convergence STK-ICs, or the convergence board. I bought a replacement board with the STK ICs and installed it, but no luck, the problem persisted. I decided to mess with the manual focus adjustment on the green crt (i was seeing a green halo), and that fixed it. As it turns out, no replacement parts were necessary to fix the problem in the first place. Hope this helps somebody out there.

Nov 14, 2007 | Mitsubishi VS-50703 50" Rear Projection...

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