Well i've been giving the SD1 an extended session today and its just gone dead. The small 1 amp power fuse had failed and the SD1 will run with a new fuse for a few minutes and then dies. The mains transformer is quite hot, is the transformer fitted with an internal heat sensitive fuse? Non of the voltage regulators or diodes seem to be hot so could i have a suspect transformer? If so is it a common problem?
Vikki(uk)