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Electronics => Repair => Topic started by: Aiy on November 25, 2017, 09:05:31 am

Title: Agilent 58455A battery
Post by: Aiy on November 25, 2017, 09:05:31 am

Hi,

I'm servicing my oscilloscope and found that the Motherboard CMOS battery is lost. The service manual has a simple drawing of the pc-side motherboard which says its 3V, but not the exact type. Can somebody point to a correct replacement buttoncell ? I tried a cr2032 I had on hand, but the scope didn't want to boot with it.

Best regards

Title: Re: Agilent 58455A battery
Post by: ap on November 25, 2017, 11:23:16 am

The battery replacement causes CMOS RAM data to be lost. You need to configure the BIOS. See page 5-16 of service manual.
Keep us posted if you could fix it.

Title: Re: Agilent 58455A battery
Post by: Aiy on November 27, 2017, 03:39:29 pm

The CR2032 battery worked after all. I needed to do a reset of the bios with the jumper, then it booted  :palm: