AnsweredAssumed Answered

E4406A Power supply schematics

Question asked by svens on Nov 26, 2014
Hi,

i got a E4406A that fails most of the selftest during startup. After checking the voltages from the power supply, i noted that the +32V are low, they measure only 2.5V. Looking at the PCB, it seems like the 32V are regulated with a linear regulator consisting of a IRF9530, LM358 and a LT1009. As measuring in the power supply is hard,
does anyone have the schematics of the Power supply? Or have seen that fault before?

Thanks
Sven  

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