[Test-Equipment] Selective Voltmeter W&G SPM-15

[J. Forster]

Open it up and look for a lithium or NiCd battery on the CPU board. After all,
it may be leaking and corroding everything.

-John

AdB wrote:

> J. Forster wrote:
>
> >Does it have a sick memory backup battery? Just a guess. I don't know the
> >instrument.
> >-John
> >
> >
>
> John,
>           thanks for your answer. The problem is that, not having the
> Service Manual, I don't
> even know if there is a backup battery...
> I would tend to say that there is no battery, as without mains voltage
> (even if switched off)
> it looses all the frequency and sensitivity settings, but maybe the
> battery is used for the
> calibration only... it looks like I will have to open it, but, having
> opened an SPM-6 in the
> past, I know already that it is a nightmare to service such a piece of
> equipment...
> Still open to suggestions, thanks.
>
> Alberto,  I2PHD