Yamaha TX-16W
This time, a fairly rare instrument was repaired, namely the Yamaha TX16W sampler. The problem of this device was the high-frequency sound generated by the DC/DC converter, which, in addition to the fact that it was coming from the inside of the device, was additionally heard on the audio outputs. All electrolytic capacitors in PSU (plus one ceramic) were replaced, which effectively removed the problem.
