Roland TR-77 repair and trigger+sync input mod

Posted by in mods & repairs, Studio

Power supply replacement so we got rid of the hum :
http://www.circuitbenders.co.uk/newsarchive/TR77power.html

Trigger inputs:
http://www.circuitbenders.co.uk/newsarchive/BRA.html

Sync input:
http://www.adambaby.com/studiotech_TR-77.html
http://www.burnkit2600.com/tr-77/