Just thought I'd jump in here and say hello... long time "sometimes poster" / lurker type who loves tons of the forums here
So, a friend of mine has had an '04 Sony KP-46WT520 forever. It never seemed to give him trouble until it recently "lost audio" (while playing Netflix, via Wii) and also developed a solid blue line across the screen when power cycled...
Being a "regular user" of such tech (though he is an HVAC tech..), he gave up after a couple of power cycles (not leaving it on the solid blue line for more than a few seconds, as he knew this couldn't be good), and went out to buy a new LCD.
Being the kind of guy who likes to tinker, and being longtime friends, he asked if I still fixed TVs on occasion (more a hobby for me, I am by NO means a "Mr. Bob" - quite enjoyable posts here... those that I've skimmed seem like good times), and if I'd like to take the set. Um, yeah. I knew it was a CRT based set, which I'd always been interested in. ...his wife also wanted it out of their garage, so as a friend, I felt good in actually helping them take it away
Other than very occasional short viewings at his house, I'd never paid it much attention - once when it was new, we were all totally awed by a DVD on the thing.. since then, I'd seen it maybe a handful of times, and always thought "that's a solid TV..." Indeed, I think it is, having lasted since '04 with him never having had to have "major service."
Long story short, it's in my garage now, and I hope to fix the thing. We got it to power on once more almost normally (more on that in a sec), and then after another power cycle, I saw the "blue line."
Seems that TONS of these sets had power issues. I figured, what the hell... and ordered the two ICs that are commonly replaced (just in case, and to brush up on soldering). Some also report that the audio issue is related to weird power issues.
Any other advice on getting this ol' thing going again, other than testing the power board / replacing parts there? ...One random thread (can't find it now, of course), mentioned that it was possibly a defect in the "D-board" on this model, but if it's having power / audio issues, I'd think to start there first.
Other than any general tips on getting the beast back to life, I'm curious how dusty the thing is - I'm sure it's NEVER been taken apart before. Should it appear due to have lenses / mirror cleaned, I'm curious what material would be best used, as I've seen one comment *never* to use microfiber (lenses are plastic?). ...If that's a "private call" kind of thing, that's cool too.
Anyway, just wanted to share - saving the old thing from certain doom! No idea what I'll do with it next, as I don't know how long I'll be at my current place, but for now, it would seem to be quite a nice thing to keep around since I'm also an old school fan of CRT tech (and will always regret having to lose my old 21" FD Trinitron monitor... RIP...).
...EDIT...
Seems it has 5 blinks after powering on. Solid blue line still present. Quick searches on this indicate "D board" issues
...thinking power supply probably won't fix, but it won't hurt to try I guess. Any tips on D board fix for this?
Edit 2
Did a little dusting inside the cabinet, and it powered on and worked fine for a couple hours.. Definitely see a need to clean the lenses, and the inside / outside of the screen.
Found the chips that would be replaced, but I couldn't get the "hv" wires disconnected, so I'm not sure how to get that board out
...convergence was otherwise good. Picture was good overall.
Edited by kansanian - 11/6/12 at 7:19pm
