Question about Akai PTH5498 54" Rear Projection HDTV-Ready Television

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Red & green lines

TV has worked fine for 4 yrs. Turned it on the other day and there are green and red shadows at upper and lower parts of screen. At top and bottom screen is curved in at center

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Re: red & green lines

Sounds like you have hardware failure in the convergence circuit. Some combination of the IC's, fuses, and/or resistors has failed. Repair cost is $250-$400 parts & labor

Posted on Dec 02, 2007

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I turned My tv on and the top of the screen has red, green, and blue swirl lines, and the rest of it looks like watching a 3D movie without glasses, and the picture looks as if you took out the screen and...

The tv have a problems known as a convergence pictures problems,it is dead.Tv have any colors lines R,G,B mis alignments,have colors shadows pictures or pictures look like 3D?Yes,than the tv convergence board it is dead.The tv convergence board must have it components parts replaced like 2 STK convergence ICS and some or all of it resistors too.To fixed the tv convergence board to solved the tv convergence pictures problems.The tvs shops will cost u like $300-$350 for parts and labors.

Aug 11, 2011 | RCA D52W19 52" Rear Projection Television


Good day!!!I i had problems with the fl 231 fuse on my RCA D52W23

FL231. FUSE.... The RCA ITC222 chasis has a common problem. and it not all that difficult to repair. Does your rca projection tv have read blue and green shadows? Does it have bowing in affect on the top and bottom of picture? when you turn it on does some thin red green and blue line bow in from the top then go away. The main question to determine if you have the fl231 fuse problem is if you go into customer menu then setup do you have the "CONVERGENCE' option. If you do not. then i suspect you have this problem. In the manufactering of these sets Lead free solder is used. now there is great debate over the use of lead free. connection tend to be more brittle. cracks develop around the solder connections of the high voltage flyback transformer. this very small crack set up oscillations in the cuicit with a 400 milliamp fuse. THis fuse cant take it. When this fuse blows the processor then does not know its a projection tv with three projection tubes. it thinks its a crt tube tv. and crt tube tv dont need "convergence" so it removes the convergence from the set.

TO REPAIR... 1. Warning. this set can generate leathal dangerous voltages even unplug do not attempt if you have no experence with electronics.
2. Remove the back. there a number of torx 20 screws.
3. what you will see is a number of circit boards There will be one on the right and one on the left. the one on the right is the small signal board. the one on the left is called the power deflection board. it has a large black part with a big red or black wire coming from the top, this is the flyback.Next to the flyback on the right of it there will be three small rectangular componets tan or brown in color. these are fuses. the one in the middle is the fl231 fuse.
4. getting to this fuse can be difficult. these two cuicit boards sit on a tray that is removable. to remove this tray it is pulled out and up. BUt watch the wires.loosen the wire tyes.
5 when you get the tray up the bottom side of the board can be accessed
you will now have to unsolder that fuse. one side of this fuse is under a plastic part of the tray. i have found the easest way is to cut away the plastic to get to it. if you dont want to do this you will have to remove the board. only remove half of the plastic brace
7 RESOLDER FLYBACK CONNECTIONS simply heat up and add a little solder
8 reassemble set. make sure you examine the set for loose connections.
9 and remember "BE Careful'

on Jan 14, 2009 | RCA R52WH73 Projection Television

1 Answer

Green and purple shadows in the left upper corner

Projection TV sets have several common problems listed below.

Problem #1) Convergence


  • Screen Looks 3D
  • Colors wont align
  • Screen may look distorted
  • No Audio/Video - TV makes a chirping sound.
Problem #2 CRT Fluid has clouded over. Symtoms
  • Dull looking video
  • White looking video
  • Halos around objects
  • Red/Orange looking video

You can see some examples and find a fix here...


Mar 05, 2010 | Sony KP-46WT510 46" Rear Projection HDTV

1 Answer

Red, Green, and Blue shadowed lights

the lense red blue green is warped you will need to replace those lenses

Aug 13, 2009 | RCA HD52W56 52" Rear Projection HDTV

1 Answer

Why does my TV have a red shadow on all the people and words. i've only had it 4 1/2 yrs

It sounds like the red gun is off. Your tv uses three guns(red,green and blue) to make the picture. sometimes one of these guns shifts a little and the colors get messed up and there are shadows because the gun is still trying to make the image, it just doesnt line up. This is a pretty inexpensive problem that can be fixed by most any tv technician for a small fee. If your pretty confident in your electronics know how, google adjusting guns and your tv and that should yield something.

Oct 20, 2008 | Projection Televisions

1 Answer

Green cruve line

Good Day;
Suspect Convergence IC's STK4274, part Number 2003191. Replace all three IK04(red), IK05(green), IK06(blue).
Good Luck, big IRISH.

Aug 30, 2008 | Hitachi 50UX26B/27K 50" Rear Projection...

1 Answer

Problems with my Mitsubishi hd1080

If the Blue lines are blurs or shadows, then your Convergence IC's are going or gone bad.
I have the same TV - it will be 4yrs. old in Dec. Mine started with Blue lines & shadows, then Red, Blue, Green Shadows. This is caused from over heating. The Convergence IC's have to be replaced.
I have had 3 TV Repair shops all quote me a price from $350. to $400. to repair. They all said 4 years is the usual life time for these IC's.
Replace the STK932-110amps with STK394-250-E or STK392-150 for greater reliability.
Use only Original Replacement Parts, there are some cheaper but won't last and can't take the heat.
If you are a "do-it-yourselfer" here is a link with the directions and pics.
Good Luck!

Mar 19, 2008 | Mitsubishi WS-65869 65" Rear Projection...

1 Answer

Green shadows and curved picture

the convergence apms ic"s need to be replaced

Aug 16, 2007 | JVC AV-65WP74 Rear Projection Television

2 Answers

Sony kdf-e50a12u rear projection lcd bravia. red...shadows

try this

Aug 11, 2007 | Sony KP-61HS10 61" Rear Projection...

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