> > The bias voltage is generated by the chopper on page three in conjunction > with T1 and some rectifying diodes on the motherboard. Then it is feed back > to the bias board on J2:2 to produce the 5V. (page 2)
Yes... It's not totally obvious at first glance, but this is yet another SMPSU with the chopper on the Bias/Interface board. The transformer on the baseboard is not a mains-frequency one. -tony
