Question about Akai PT4298HD Rear Projection Television

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Colour My TV. is predominately blue,green and yellow. No reds! I can't adjust the colours to bring up red.Can you assist me?

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Re: colour

It sound like you haveing troble with your red crt...could be crt socket circuit board or actually crt.

Posted on Dec 07, 2007

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How do I adjust the convergence properties on an RCA rear projection tv?

Normally on the RCA rear projection TV's you would bring up your menu and choose the Setup menu, then press OK on the remote. That menu would then have Convergence as a choice. Once that was chosen the next menu would give you the choice of either letting the TV run it's own Autoconvergence program, or you would select either Red or Blue convergence.

Choosing Red Convergence would bring up a Yellow cross-hair in the middle of the screen. If the Convergence was not correct you would see separate Green and Red cross-hairs. Once they were perfectly aligned you would again see one Yellow cross-hair.

Choosing Blue Convergence would bring up a Blue cross-hair in the center of the screen. If the alignment was out you would see 2 Blue cross-hairs. Using the Up and Down and Left and Right cursor keys you would adjust the alignment until a single solid Blue cross-hair was in the center of the screen.

May 15, 2011 | RCA Projection Televisions

2 Answers


The RCA model is a 3 CRT projection TV. Most probably you need a new RED CRT, or there is a problem with the R(ed) channel (the picture is made up of 3 component colors: Red, Green and Blue). No way of telling without testing of the projector. Sorry!

Jul 11, 2009 | RCA P52926 52" Rear Projection Television

1 Answer

Colours are blurred and very red

Yes, the cooling fluid in the blue and green picture tube assemblies has become contaminated. Thats why the red is predominating. The contaminated growth cannot grow in red light and that is why the red is not affected. The only solution is to have the blue and green tubes pulled and disassembled and cleaned and new fluid installed. This is not a simple job. Most reputable shops charge around $300 to $500 for this repair.

Jul 10, 2009 | Philips 6P4830W 48" Rear Projection...

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I was just given this t.v because friends couldn't figure out what is wrong with itl. The colors don't line up right,looks kinda blurry depending on the lighting of the program being watched. How do i fix...

According to the manual:
1) go to the "TV Main Menu"
2) Select "Screen"
3) Select Adjust Projection TV (obviously only if a projection TV).
This then allows you to adjust the TV's 3-colors. Selecting GREEN CENTERING brings up a control panel that lets you center the green projection tube on the screen. Selecting RED CONVERGENCE or BLUE CONVERGENCE lets you align the Red & Blue projector tubes. Centre the green projector tube 1st. Then adjust the red & blue until the test pattern on the TV screen appers white.
Good Luck!

Jun 08, 2009 | Proscan PS50700 50" Rear Projection...

1 Answer

A lot of red in pic no matter what we do and tint dose not change anything

As is typical with all Philips projection sets the cooling fluid has become contaminated in the blue and green picture tube assemblies. The red is almost never affected with this as whatever bacterial growth is discoloring the fluid in the blue and green tubes can't seem to survive in red light. The blue and green light is shining up through muddly cooling fluid and that is why the red is predominating. A reputable tv repair shop can pull the tube assemblies and dismantle them and clean and reassemble and refill and do all the necessary adjustments for around $300 to $400.

May 26, 2009 | Philips Projection Televisions

2 Answers

JVC Model AV-48P575 Green/Yellow Screen

i would check the red color first it sounds like your loosing red

Feb 22, 2008 | JVC AV-48P575 48" Rear Projection...

1 Answer

Red & green lamps shutting off leaving a blue screen

Could you show a picture of the distended cover you mentioned?


Were the light blue lines you were referring to, diagonal, or truly horizontal?

Oct 15, 2007 | Sony KP-57WS500 57" Rear Projection...

2 Answers

Red Screen

first try going to the menu on the tv and adjusting the red blue and green tint....if not the u need to remove the front pannel and move the the the top left knob on the setting to lower the tint...

Aug 15, 2007 | Hitachi 57S700 57" Rear Projection HDTV

2 Answers

Blue Color spots on all pictures

Call a technician, sounds like an Integrated Circuit problem and would cost you about $250.

May 07, 2007 | Philips 60PP9202 60" Rear Projection...

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