Follow along with the video below to see how to install our site as a web app on your home screen.
Note: This feature may not be available in some browsers.
Ok, what am I missing here.
IMG_5602.mov is coming up for me as a 9.28MB, 6-second video of a CRT with nothing on it. I'm looking really close, and I don't see an image.
I'm using VLC to view it, and tried downloading it again. Same thing.
If it was a snake it would bite you!![]()
The first time opened it on my phone and it worked.
Now I just opened it on my pc and it worked.....clicked the link, saved to disk, opened with VLC 3.0.16, and played it. Using Windows 10.
Here are some snapshots from VLC at 0, 1, 2, 3, 4, 5, 6 seconds. If you put them all in the same folder and open the first one with MS Photos (or similar tool) you should be able to do stop motion animation with the left and right arrows.
Weird that you can't play the the video after saving.
This rare effect is brought to you by soldering in C504 backwards. In my defense, the + marker is somewhat hidden and at times I am as thick as a brick. Check your work, kids!
It isn't 100%, but I'm getting closer. Thanks for all your help.That would do it! Glad it was something simple (and in the area we were suspecting).
Everything is working fine with both cages now?
It isn't 100%, but I'm getting closer. Thanks for all your help.
There is now a much slower expansion of the screen over time. The focus pot doesn't seem to have any effect at all. I pulled it and tested it, and it works fine. Could the reversed cap have done some collateral damage?
Reading up, it looks like my diode still isn't clean enough.
Thanks for the mouser reference, Andy. Why are replacements treated as unobtanium in this discussion?
I don't know where they were searching, or what for, in that thread.
Working on a 15V2000 for my brother, and I'm leaning towards abad tube, but figured I'd see if anybody else has seen this behavior...
Asteroids Deluxe cocktail - all was good up until recently, when it suddenly wasn't.
Tested with multiple known-good deflection and HV cages - these work fine with a 19V2000.
Chassis transistors all quadruple (or more) checked at this point, and those voltages seem fine.
On my B&K 470 Rejuvenator - when I attempt to set cut off (one notch up from 0), I can't. It's either at zero, or the needle pegs. No shorts detected. It shows emission as crazy high. Clean & Balance - no change, at BEST, we can make out a faint bit of a blurry white circle in the middle of the tube. Normal vector chatter, spot killer off - everything else seems fine, just no image. Really no changes adjusting brightness/contrast. Anybody else come across this, or have suggestions? Smells like a short of some sort?
Swapped it with a working v2000 and you're correct, something else is at fault. When you say downstream, does that include the HV cage? As I read it, it is just capacitors, resistors, and the neons downstream. Wouldn't it be a failing component upstream that is letting too much voltage go to the diode? Something like Q504?I'm curious if that diode is actually your problem. If something else downstream from it is causing it to draw too much current, it's going to heat up, and artificially cooling it might just be helping it, even if it's not the root cause of the issue. I'm not saying that's definitely the case, but I've never seen that diode fail this way. So don't be surprised if you replace it and it doesn't fix things.
If you have another deflection board (v2000 or 802) that you could borrow the same diode from, it might be worth swapping them as a test, before placing an order for a few diodes.
Swapped it with a working v2000 and you're correct, something else is at fault. When you say downstream, does that include the HV cage? As I read it, it is just capacitors, resistors, and the neons downstream. Wouldn't it be a failing component upstream that is letting too much voltage go to the diode? Something like Q504?
