Repair RSF DD30 Analog Drum Machine

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This RSF DD30 drumcomputer had a leaky battery, like most of the old equipment. A leaky battery can cause a bad disaster to your machine, depending on how much damage the battery made. In this case the battery was already taken out but I can show you some damage that was made by the battery substance. This resistor (and some more components) for example was eaten by the battery.

Repair RSF DD30 Analog Drum Machine

After a good cleaning I found severval traces which were totally destroyed or, in this case, interrupted in radom places, which makes troubleshooting not easier;)

Repair RSF DD30 Analog Drum Machine

Some IC sockets hat to come off for two reasons. 1. The contacts were corroded. 2. Traces underneath could be damaged.

Repair RSF DD30 Analog Drum Machine

Besides that damage the mains transformer had a transport damage, psu needed new caps, the regulators needed to be changed, cables, contacts, IC sockets, all switches and potentiometer needed a good cleaning (no contactcleaner as usual). So all in all some kind of work. Now it´s running again. Happy customer, happy me. Here’s my photo story like usual. Have fun;)