Hi,
I have a GW GPC-3030 power supply. It has three channels, two of them is adjustable (master/slave).
The master channel seems to be working as it should, however the slave channel is not.
The output voltage can't be adjusted, it just stays at 32V whatever i do.
I have checked op-amps, transistors, diodes and potmeters in the regulator circuits.
Any ideas?