I have a strange problem with aWeir HSS 100 power supply. If its left off for maybe 10-15 mins it fires up ok, but switch it off and back on after a few seconds or minutes, it doesn't start. Checked all the electrolytics etc, etc, off load/on load, no joy. Anyone else had this type of fault, or better still, anyone got a schematic ? Willing to pay.
Thanks in advance
Iain
In message , Iain Wilkie writes
Try discharging the main filter capacitor(s) with a high wattage low value resistor (obviously with power removed) and see if it will restart quicker, if it does you've got a capacitor bad, check the start-up circuit for nasty little 47uF (or thereabouts) capacitors and associated high value resistors (100k-470k)
It sounds like there is a thermo sensitive component. Get some freeze spray and a heat gun. You will have to use the process of heating and cooling the components in sequence to the power cycling to find the faulty component(s). Most likely it is a bad cap.
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JANA _____
Try discharging the main filter capacitor(s) with a high wattage low value resistor (obviously with power removed) and see if it will restart quicker, if it does you've got a capacitor bad, check the start-up circuit for nasty little 47uF (or thereabouts) capacitors and associated high value resistors (100k-470k)
-- Clint Sharp
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