100mA for one 24V large relay , 2 small 24V relays plus some circuitry seems
reasonable. The heating of the, heatsink-less, pass transistor is the same
as the one for the -18V supply so again seems reasonable current.
So 0.5W dissipated in a 0.5W resistor is questionable. Hopefully a 200mA
fuse and larger 47R makes more sense.
Looking on the www it seems to be a recurring problem for this otherwise
respected model
--
Diverse Devices, Southampton, England
electronic hints and repair briefs , schematics/manuals list on
http://home.graffiti.net/diverse:graffiti.net/