Man it's great to have some time to work on a cab....
This is how it looked when it came out of the shed: What a shame about all that side damage.....but with some good cleaning it will already look a lot better....still uncleaned here:
I removed the bezel and marquee before it went into storage and put them in a safe place.
The coindoor has already been powdercoated and just needs to be mounted back.
The back is going to need a fresh black paint:
What do you do when the original Japanese sized 100V tube dies ? You replace it with a carefully mounted incandescent light bulb all the way on the right side of the marquee area. I bet it gave a nice even lighted marquee !! The wood under it was _just_ not burned all the way through !
Needless to say I removed this "nice" set-up.
I wondered what that grass-like stuff was under the original fixture. Turned out it was some tape that dried out so much is became like straw....weird. There was also stuff like that over the typical Japanese starter-lamp. My guess is that those tapes should have been removed when the machine was first put in service but no-one bothered....
I'm still not sure wether to find for an original tube for the original fixture or replace the whole thing. The last option is probably easier, cheaper and giving a more even lit marquee.....
This is the dirtiest cab I've found so far. The dust inside looks black/dark grey, like car exhaust particles, maybe it was in a garage for a long time ?
Anyway, it needs some serious vacuuming...
Yes vacuuming is pretty needed and effective:
Removed the power supply board. This was what it originally looked like, even vacuuming doesn't get it that clean
First things first: Let's check the power supplies.
Let's see what comes out of the transformer:
Looks fine to me. It doesn't produce 100VAC exactly because the mains wiring is hooked up to the 240 VAC tab (former UK standard) and we now have 230 VAC all over Europe (and yes, that includes the UK, wether they like it or not
). Anyway, the other option would connect it to the 220VAC tab, but that would give a (slightly) too high voltage. All in all, this is the set-up I choose, so I let it be as is.
As a "bonus" the cab came with two PP-7B supplies.
Let's check both the PP-7B's:
The first works fine. Power levels as expected, maybe needs some small adjustments but it's unloaded now....
The second is completely dead. Maybe just the fuse, but could anything of course. Will check that out later.