Hey folks, I've now scanned the instruction manual & schematic to the Radio Shack (a.k.a. Micronta) 22-204C analog multimeter. This is one of the best meters Radio Shack ever made in my opinion. I bought mine in 1984 and still use it several times a day every single day.
http://www.arcade-museum.com/manuals-test-equipment/Radio%20Shack%2022204C%20multimeter%20manual.pdfThe schematic was scanned at 600 d.p.i. resolution so you can enlarge it.
There's a guy on you tube who's done a 4 part series on how to repair this particular meter model.