WORK GETS UNDERWAY
Our tasks for the weekend:
The M400 was in pretty good shape. It had been bodged a little in the past (someone stuck an amp and speaker in it), but those items were long gone. Its power supply was even rebuilt recently.
Overall condition was good, but it had an annoying problem with key warpage and rubbing. We decided to do some part swappage between the EMI and M400, given that the EMI's keyboard was in decent condition.
...not so the pressure pads, which had the "afro"-style felt that was way too thick. OK, those wouldn't do.
We dismantled the keyboards on both machines and migrated the EMI keys to the M400. This was a very tedious operation, as it required the removal of 70 keys, pinch rollers, and pressure pads. Yow!
And then we had to put them all back together again!
When the key migration was done, we found that the keys were rubbing a bit on the cheek blocks of the M400. There's no surprise there, as these machines were all pretty much hand made. A few passes with a file, and we were in business...
After that the machine was almost ready. But the more Jerry played it, the more I could hear that something wasn't quite right. Sure enough the SMS-5 motor controller in it needed adjustment. Jerry gave it a few tweaks as I listened and he watched with a volt meter. I'd tell him when it didn't sound right, and sure enough he'd notice that the voltage wasn't in SPEC. After a few minutes we had the controller adjusted to where it needed to be. The M400 was done.
And that...was that! Pretty light work, if a little tedious with all those keys. At least they're numbered for easy assembly!
We had some parting shots for Monday...-->