We got this tv second hand as is. The picture was really rough. It was green and yellow tinted, kinda washed out and faded. So we pulled it apart and cleaned the lenses and mirror. The green lens has a serious scratch on it, but everything came clean. When we put it back together the picture was really out of focus. Figuring this was because I turned the green lens, I tried to manually correct this but it won't go back to normal. I did try the self focus but it's not fixing the problem. What do I do now?
SOURCE: Akai PT 4299HD picture shift
Sounds like you got it ! Note for the future....if you change
convergence amp IC's...be sure to use top quality name brand
only....no generics ! I use Panasonic with no re-calls.......T.
SOURCE: Akai PT4298HD Rear Projection Television Problem
My AKAI 42 rear projection self focus set has blue shadows on everything and too much red, I cant seem to adjust it and self focus does not help?
SOURCE: very faded.....tv is 7 yrs old....54 in akai projection tv
change the coolant!
tvrepairkits.com can help you find what you need.
SOURCE: AKAI PROJECTION TV 54" - 6 YEARS OLD, DULL PICTURE
PLEASE BE CAREFUL WHEN DOING THIS PROCESS!!! YOU WILL DESTROY YOUR CIRCUIT BOARD LIKE I DID IF YOU DO NOT TAKE YOUR TIME OR ARE CAREFUL!!
What you need to do is clean the CRT coolant inside the TV. Here is a forum that I SHOULD have read before doing mine:
CRT COOLANT REPLACEMENT AND CLEANING
I was lazy and not taking my time to take care in not dripping any CRT coolant and some got on my circuit board, ( I felt confident since I had changed the Blue CRT 2 years prior) and I was only able to see about 1 hour of the best viewing my TV has ever given me since it was new, it looked like a miracle had happened. My TV was "dull" as the best way to describe it, colors faded, kinda fuzzy. I briefly researched into it again to refresh my memory then jumpted right into not really taking any precautions. I got lazy and didn't take out the CRT's like I did the first time with the Blue CRT and paid the price for it. Let me tell you, theirs nothing worse than getting a perfect brand new like picture only to loose it and hour later because of carelessness. Take out the CRT's, take your time, label everything and take pics, the reward is WELL worth it. Oh ya, you can use Mineral oil instead of the coolant that they sell at stores. Its not conductive, and dose'nt damage the circuit board if u spill a little. I used Baby Oil the first time I did it and when I went back to change the green CRT this time around it was still crystal clear, no discoloration in the Blue CRT I had done 2 years prior. I hope your results come out better than mine did!!
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