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Subject: Re: Schematics for JBS20 needed (ATA 44 pins)
From: Markus Grebenstein (sassodimorte_at_gmx.de)
Date: 2004-06-03


Linus Nielsen Feltzing schrieb:

> Markus Grebenstein wrote:
>
>> OK thanks. Do you know if the violtage on PIN 42 (Motor) and/or 41
>> (Logic) should be 5V all the time, when teh processor is running?
>
>
> On the newer Studio models, the hard drive power can be controlled by
> the CPU, with port pin PB4. However, the firmware enables the HD power
> early in the boot sequence and never turns it off again.

OK. So I should have 5V on Pin 42 related to PIN 43 after switching on?

Is there a schematic for the powersupply too?

Markus

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