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3405B stuck in AC coupling

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3405B stuck in AC coupling

Postby zmrbill » Mon Apr 20, 2015 5:06 pm

Hi, my 3405B is stuck in AC coupling on all four channels. I will be sending it back for repair but I wanted to understand what part of the circuitry was fried and what caused the failure. At the time of the failure I was looking at a 28 VDC power supply and think that it might have been a related to how the scope/laptop was grounded versus the power supply. Anybody have any ideas?

Thanks in advance, Bill
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Re: 3405B stuck in AC coupling

Postby Martyn » Tue Apr 21, 2015 10:09 am

Please make sure that you contact support@picotech.com to obtain a returns number before sending the unit back
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