Several Issues with Sony KV-32XBR36
Well, I will start by saying this. IIRC, this CRT was made in 1993. A friend of the family owned it and we paid $40 for it when they moved. It wasn't used very regularly there but it's used for several hours a day here. About a month after we brought it home, it started having powerup issues. This was a delayed start that got worse until suddenly it didn't do anything and just shut off a couple seconds after being turned on. The C661 and C662 caps were replaced to cure that issue.
New issues popped up. Ever since the repair, and for a little bit of time before it, there are horizontal lines across the screen. They seem to march in either direction vertically, The lines are not there for a few minutes before the system warms up, and then you can't get rid of them. I've turned the NR on and even tried adjusting everything I could in service mode to no avail.
I have also been trying to get the screen to display blacks as dark as possible to no avail, and it seems the entire display is too bright even though I have dropped out the BRIGHT and PICTURE levels.
But that's not the real current troubling issue. Right now, the TV has the 3-blink code, I think (the pauses, if there are any, are too quick to tell), and takes several minutes before anything is displayed on the screen. If anything other than just a plain screen with, say, (as it is right as I type this) MUTING is displayed, the screen will stay on as long as you want it to. You input a video signal and the screen displays mostly nothing period until whatever issue is temporarily out of the way and then the screen will show a video input for a few seconds, maybe a minute, before the screen goes completely black again. I've seen this described as "blinking".
I have a service manual, a decent soldering iron (needs new tip and decent solder), and am well versed in soldering (except surface mount). I already know this is an old TV but it was pretty expensive when bought and throwing it to the dump would just be a shame for a simple fix. Please help!