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Posted - 04/16/2015 :  13:23:40  Show Profile  Reply with Quote
I have a new A305D power supply that only reads 0 for both current and voltage. The red CV light comes on unless both current knobs are turned down, then the green CC light comes on. I opened the case, but did not see any fuse to replace?? Any help would be appreciated.
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1261 Posts

Posted - 04/19/2015 :  10:14:04  Show Profile  Reply with Quote
As long as CC light comes to green, then the unit is in a CC Mode. The voltage knob no longer controls the voltage. The Current knob controls current.

Maximum the current knob, if the +/- output leads are not shorted but the green CC light still on, then something wrong with the unit. Check the output transistor and see if it is burned.
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