Well we/you can make sure he got the schematics, they are all here although, lots of prior experience (and knowing MP-1s backwards) gives a major head start and a big save on troubleshooting time (eg MJMP). My guy here in Canberra hasn't seen them either so I want to bring him up to speed. First step is I'll take over a working MP-1 and MP-2 and melt him
(he has a JCM800). But this will take time.
So you can buy a cheap scope and then try to sus it out, a good option IMO if you like to get under the hood
. The other best alternative IMHO is to send it MJMP and also get anything else done to it it needs. Postage will probably be around $200 there and back ? maybe less (they aren't particularly heavy). Not to piss in his pocket too much LoL, but MJMP does great work
(he revamped both my MB-1s
) and his prices are very reasonable (and elastic). Unfortunately, the main ADA aware tech in Oz (Sid Barret) has (IIRC passed away), he used to do all the work on them for Pro Audio (Oz distributor), back when I did the guitar repairs for them...