MDSL Intern Day 1
Roland TR727 Analog Rhythm Composer



- had issues with few contacts, resolved with contact cleaning
Roland TR707



- had issues with 2 buttons, initially suspected that the buttons themselves weren't contacting well but after checking with multimeter and some investigation with schematics, found that there was a small scratch in the secondary circuit board (for the buttons)
- resolved by soldering a thin wire over the scratch
- original issue of the display being too dark cannot be resolved, tried adjusting certain potentiometers in the board but nothing changed
notes
- learnt how to check valid connections with a multimeter
- learnt how to diagnose issues by checking through schematics
- very cool session
- oscillator basics!