Question about Akai PT46DL10 46" HDTV-Ready Television

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Color is out of whack

I've changed the bulb and the picture is working now, but the problem is that it is really green, i've tried adjusting it and nothing seems to work. Also the lamp light did not go off after changing the bulb. Im about ready to throw this tv to the curb.

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Re: color is out of whack - Akai PT46DL10 46" HDTV-Ready Television Projection Televisions

Get r done

Posted on Aug 03, 2008

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Panasonic hdtv 1080i picture bright

It could be your main board going bad.

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How Do I fix the convergence on my 2001 Hitachi Projection Tv

Your TV most likely has one or more possible problems.

Problem #1: Convergence Chip Failure ( common problem )

Here are some of the most common symptoms and example photos of a convergence problem

  • Screen looks 3D
  • Colors don't line up
  • One or more colors can't be adjusted when using the convergence menu.
  • Screen is bowed or warped.
Here is a quick test....

Using your original remote go-to the tv settings then goto the convergence section.

Try to adjust the red and then the blue convergence.

You should be able to move them up, down, left, and right.

If you can't move them in all directions your convergence chips are bad and should be replaced. This is a common problem.

2c07611.pngSolution #1

You need to replace the convergence chips and convergence resistors. Check the site They have put together a kits for most models. If you don't see a kit for your set send them a quick note and they will put one together for you. Their kits include a photo instruction guide, original OEM Sanyo STK chips, convergence resistors, pico fuses, etc.

Problem #2 CRT Fluid is Cloudy

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 aroundimages.

Picture of a set that needs the fluid changed.

TV set after fluid change


2c07611.pngSolution #2

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

Jan 05, 2012 | Hitachi 53UWX10B 53" Rear Projection...

2 Answers

The color on my tv is turning green. It's not totally green but it's becoming green. No matter how I adjust the colors it remains the same with too much green. You can't see the true colors...

It is very common for the color of the lamp to change as it nears the end of it's life. Depending on the bulb itself you may see yellow, green, or blue shifts (I have even seen red/orange). This is due to the diminishing output of the bulb and while you can make some adjustment you will eventually hit the point of failure. The bulb could in fact last several more weeks or even months depending on your use and environment. It is probably a good time to start searching for a replacement now so you can replace it as soon as it dies or just replace it now if the color is too bad to be worthwhile.

May 23, 2011 | Philips Magnavox 9P6034C 60" Rear...

1 Answer

My picture all of the sudden went bad. You can still watch tv but the top of the picture is a little warped and the colors are all messed. The images are split into a red and green picture that overlaps...

One of the two convergence amplifier modules has gone bad. I suggest replacing both. They cost about $20 each. You may also have to replace a few resistors or a fuse. The labor is actually not all that difficult for an experienced technician. See the solution KyleM_73 provided for more details.

Note: it is possible to adjust convergence using certain commands from your remote control. DON'T TRY IT UNTIL YOU FIX THE FAILED AMPLIFIERS! You won't break anything more, but you will make a lot of extra work to finish the job because the adjustments will only go all out of whack and won't help the picture before it is repaired.

Jan 19, 2011 | RCA D52W20 52" Rear Projection HDTV-Ready...

2 Answers

Blue bulb is lit but no picture

the messed up colors are probably from a burned out convergence chip. not too pricey to fix.

Feb 17, 2009 | Philips 55PW9363 55" Rear Projection...

1 Answer

Picture loses all normal color & changes to snowy blues & greens

Not sure what causes it but it can be fixxed by your local repair guy, I just had mine fixxed for under a hundred bucks, he takes the back off and with a tiny screw driver adjust a few screws to near brand new perfect picture.. and it has been good ever since

Dec 01, 2008 | LG RU-52SZ30 52" Rear Projection...

1 Answer

Greenish tint to picture

there may be a green tube issue or there could be a screen voltage or screen control adjustment issue. There is a control block with six adjustment screw inside the front panel in front of tv. WARNING high voltage exsit in this set and adjusting these controls really should only be done by a tech,....So be careful

Nov 20, 2008 | RCA D52W19 52" Rear Projection Television

1 Answer

Help with the green.

This is caused by failing convergence ic's. They take the image from the three picture tubes and align them so that one picture is displayed not three. They are the two large ic's on the biggest heat sink in the front of the tv, but changing them can be tricky b/c resistors feeding voltage to those chips may be bad to. It is a simple repair to a qualified technician but a major headache to a novice. It is economical to repair but I would leave it to the pro's. Hope this helped.

Mar 31, 2008 | JVC AV-56WP74 56" Rear Projection...

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Green and red shadows

try adjusting the color purity by one,or if it is really bad tube u can extend it by rejuvinating it.

Mar 24, 2007 | Toshiba 43H71 43" Rear Projection...

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