Johnson Amplification Marquis JM60

[JZRepair]

Here's an interesting one. Did a little digging, but unable to find anything other than information and a user manual. Does anyone by chance have a schematic or service manual for this amp? I don't have to work on anything other than an input jack, but I'm really curious to look at the schematics and see what all is going on. Any help would be appreciated.

[dmeek]

Here is the JM150. Maybe similar.

Johnson JM150.zip

[JZRepair]

Here is the JM150. Maybe similar.

[ATTACH]n969580[/ATTACH]

Thanks. I'll take a look. Usually, I know this is the case. Still, if there's a proper schematic for the JM60, I'd love to get my hands on it. I have found that a lot of times different models have some similarities, but usually some discrepancies.

[Ewilli]

Here is the JM150. Maybe similar.

[ATTACH]n969580[/ATTACH]

Very good to have that schem, do you happen to have the list of error codes? I too have a JM60 and it is throwing codes after making a pop about 20 minutes after power up, Still sounds OK, and code clears on power cycle, sometimes it returns, sometimes not...would like to know what the code is so that maybe I can cut down on the leg work...