AMEK - BC III FAQs.



	BC III FAQs
Q How do I get an answer to urgent questions outside UK office hours ? A Ring the out of hours support line on 0831880360, or a the US service number. Q I have a low frequency hum on some or all outputs, either all the time or for some part of the day, what is the probable cause ? A It sounds as if the large capacitors in the power supply are failing, and need replacing. As a temporary work round we suggest reducing the DC rail voltages by 1V, as this reduces headroom, we suggest you use this only as a way to finish a session, while waiting for replacement parts to arrive. Note this does not apply to switch mode type power supplies.