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After about 5 min a few horizontal lines scan down the screen then the picture goes away. I still...
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Problem for Projection Televisions
Generic problem for all Projection Televisions
Projection TV Convergence
My Projection TV seems to be out of focus. The problem is on the left and right 1/4 edge of the screen. The center of the screen looks OK. The screen has a double image in red. I tried the manual convergence adjustment, but the adjustment crosses will not move when I try to adjust them.
Comments:
Dec 11, 2007
- I ended up paying a repair shop about $400 to fix the problem. They replaced the cooling fluid. (I never knew the TV even had cooling fluid, almost thought they made that one up!) and they replaced some IC boards, whatever those are...The fix was expensive, but cheaper than a new set. TV is a 2001 so it was almost a push. If it had been a bit older, I'd have opted for the new flat panel. Works great now though. Good luck to all on the quest for a perfect picture. ToolmanSame Problem
Feb 24, 2008
- G00d Day, Philips 55" RearProj TV has douvbe image red about 2" [2001]Intellisense should align - but comes up just red and won't respond to any controls once the Intellisense button is pushed on the remote:
Philips 55PP9401 (PP15 chassis) convergence troubles
I am a EE, not specializing in TV. I believe a Resistor or component has burnt after 7 yrs - F the coolant ! That is a digital function of the Electronics, too soften picture stress by utilizing less power for continuous run.
- edygo
Dec 13, 2007
- I have an Akai 5598HDI. My Convergence amps, like so many others went out after 3 yrs. I purchased two new amps and replaced them w/no results. I attempted to adjust the convergence by mute 183 but again was unable to adjust. I called everywhere to find a replacement board which is discontinued. I then called samsung who made the akai brand and asked why i can't find a replacement board...they transfered me to J&J International, who found a replacement board for $96.00 w/both stk's. I rec'd them today replace the board and still have the same prob. I'm still unable to adjust convergence/perfect focus.. is there anyone having a fix or able to send me manual adjustment fm a svc manual? many many thks....banditlee07@yahoo.com- banditleeNov 30, 2007
- Mine also has this problem, except the doubles are in blue?- bassfanaticNov 26, 2007
- put a 9-1674 in and i have convergence problem- GuestNov 21, 2007
- I have the same problem.- GuestBest Solution
posted on Dec 11, 2007
they have inherent problems with the glycol oil used to cool the tube
leaking past the bladders & onto the boards.... & it's
conductive :p
Yes
No
Solution #2
posted on Jan 09, 2008
Guest
Rank: Apprentice
Rating: 0%, 0 votes
Rating: 0%, 0 votes
You can replace the convergence amplifiers on your circuit board pretty easily. They are an inexpensive part that goes out often. I replaced mine myself and I don't have any training in this area..The amplifiers are attached to heat sinks with cooling fins. Very easy to locate. You need a solder remover with a sqeeze bulb on it ( Radio shack $14). This will allow you to remove the solder on the bottom of circuit board with out making it too hot. If you leave your soldering gun on there too long you can burn the circuit board so be careful. Also there is a capacitor in your TV that holds a lot of electricity so be careful and don't touch anything else that is conecting to power. You will first want to unplug your TV and by a repair manual that will help you with this service. Take off the back panel and you will have to unhook about 10 different plugs so mark them when you take them out. There are numbers by where they plug in. This way you can unscrew the circuit board and lift it up on edge so you can remove the solder, there is about 20 little solders on each covergence amplifier that will have to be removed before you unscrewing the amplifier from the heat sink to replace. When reinstalling you need to put a white paste on the back of each amplifier before reinstalling. Radio shack will know what you are talking about. Make sure that none of your solders are touching the other, be sure and get a small gauge of solder and not acid based or it will eat your circuit board, be sure and get resine solder. I wish I could show you but no pics available. This is for the PT-53WX52F Panasonic model. I hope this helps.
This Problem Also Relates To:
GE D52GW12 52 in. Rear Projection HDTV-Ready Television
Panasonic PT-50LC14 50 in. Rear Projection HDTV-Ready Television
Panasonic PT-43LC14 43 in. Rear Projection HDTV Television
Panasonic PT-50LC13 50 in. Rear Projection HDTV Television
Panasonic PT-52LCX66 Television
Panasonic PT-53WX52 53 in. Rear Projection Television
Sony KP-43T90 43 in. Rear Projection Television
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7 Other Users Have The Same Problem - Continued
Comment by Kensei, posted on Nov 21, 2007
My problem is identical, red shows inside blue on right and left and is perfect in the middle. It does indeed look like a focus problem. It was not gradual, it just arose intantly one morning. I have an RT-44NA11T.
Help?!?!?!
Help?!?!?!
Comment by qbpapa, posted on Nov 15, 2007
red convergence doesn't work, need to locate stk in tv to replace
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