Apr 16

HP/Agilent E3646A Power Supply Teardown & Repair

So I present the third in what is starting to feel like a long line of Agilent PSU repairs, but before you read on you should know that I have now depleted my collection of broken Agilent E36xx series power supplies so I will need to find another subject to blog about next time! That being said, even though I have blogged about two other PSU;s from the same family, I thought it would be worth videoing the repair exercise and at the same time try to demonstrate how I go about identifying and resolving a fault on this kind of circuit. The E3646A is a different model to the other two PSU’s I have repaired and blogged about – this one is a dual output 0-8v @ 5A / 0-20V @ 2.5A for each channel and the internals are different so I hope this will be of some use for anyone who may need to repair one of these.

Notes and Schematic Parts


You can download the service manual which include the schematics

I hope you find this useful or interesting, if you do please give the video a thumbs up and if you have any comments or suggestions please post them here and I will do my best to answer them.

Thanks for watching and catch you next time.

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