This site rocks with the quality of replies/help! I joined thanks to the mods and their great feedback and experience. I have read on-off for months, put away the project, and now back to it, going to either fix it or free some space up in my house. I have a problem of a different matter, that I can't find anyone else with.
I originally got the PT-53WX42F from a guy at work, he gave it to me for free, he tired to fix it, and couldn't. The size is perfect, the screen is perfect, everything seemed fine, but had the 3 blinks. Figured I could read up and fix it. Never got around to it.
A friend in the neighborhood said his TV died all of the sudden, and he was going flat screen, if I wanted the tv I could have it. Low and behold it's a PT-47WX42F! I figured it would be the exact same TV with a different case, and as far as I can tell it is the EXACT same insides. Ok, with 2 TV's, I am positive I can get one of them to work. You know I want to get the 53" working. The 47 unfortunately has bars on the left/right where something was left on pause, and created some kind of burn in.
I ordered 4 STK chips to fix the convergence (Both units unfortunately had the same problem, so couldn't take those parts..). I read and read on what/how/etc. did the job myself, replaced all 4 at the same time. I hoped the resistors were ok, would replace those later if needed, the board is EASY to get in/out. Sucess!! I got the 47" working, picture came up, setup the convergence a little (was pretty good first time). It actually cut off a few times on me after watching for a while during burn in, but has become less and less frequent. I read that the IC's need time to burn in to the settings, I am not sure if this is true, but seems to be able to stay on any length of time now. But what blows, are the darkened shades on the left and right where someone left the picture on. If anyone can help me resolve that on the cheap please let me know!
Back to the 53", plug it in, turn it on, the tubes start glowing, I get a little excited, then "click" and it cuts off, still 3 blinks... LONG story short, I have swapped IC's, cleaned/soldered/resoldered, tested resistors, everything appears to be fine, but I can't get away from the 3 blinks.
Ok, EVERYTHING is the same right? Let me just swap the whole Video board as a troubleshooting method. I do, and bam, picture comes right up. VERY badly scewed, but it's a picture and no 3 blinks! Ok, I know for a fact the other vid board has a problem, can worry about that later, I just want to get the 53" working, and I may just trash the 47 since it has burn in..
This leads my long story (really sorry trying to give details) to the ultimate help I need from you all.. If your in Cary/NC and help me resolve this, beers are on me!
The video boards look identicle. I feel 95% sure I should be able to swap them between cabinets. The picture looks "OK", just needs to be converged using the proper settings. Without going into the service menu, if I just try to get the 2 convergence options in the normal menu setup correctly, I can move the crosses up/down/left/right no problem, BUT...the first convergence setting where you place the 1 single thin green mark centered on the plastic marks on the frame of the TV, they aren't stretched all the way out to the left/right, or Top/Bottom. This seems to be because it was setup in a 47". No problem? just let it go for now, and try to line up the R/B/G where it sits. Let the 53 look like a 47 for a while, just want to see if I can get the colors to line up. They line up pretty good, with a little bowing on the tips, a little off, but when you leave the convergence setup, you can tell the picture isn't that good in spots. But now the real problem. With the TV converged with normal menu, after it plays for a few minutes, it will cutoff and start blinking 3 times again.
Am I pushing the convergence chip too far? It will play fine all blurry, but when I try to clean it up on the 53" it cuts off. What can cause this?
If I put it back in the 47" and have it looking great there, it works fine. Put it back in 53" and it plays fine, but it's really off on conv..
I REALLY want to get this board working in the 53", is there any "default" settings I could input into the service menu to tell it it's now in a 53 instead of a 47? It's the same board. OR, any way to go to "Default/Factory" settings on this, so you can start from scratch?
Stopping there, if your still reading thank you very much, let me know your thoughts/suggestions, and I will provide more details if required.