BA123/RQDX3 floppy question
ajp166 at bellatlantic.net
Wed Jul 20 19:32:24 CDT 2005
>Subject: Re: BA123/RQDX3 floppy question
> From: Pete Turnbull <pete at dunnington.u-net.com>
> Date: Thu, 21 Jul 2005 00:54:51 +0100 (BST)
> To: "General Discussion: On-Topic and Off-Topic Posts" <cctalk at classiccmp.org>
>On Jul 20 2005, 12:56, Brad Parker wrote:
>> I have two other questions:
>> - can I pull out the distribution board and pop it into another QBUS,
>> on an 11/23+?
>Yes, it needs power and ground (for the terminators and buffers) but
>has no other connections to the backplane.
>> - do I need the front panel 'thing' (the led board) or can I leave it
>You need it. I can't remember if it's the READY line or the WR.PROT
>that usually ends up in the wrong state otherwise, but one of them
>needs to be there (the READY line has to be grounded, IIRC).
>You can kludge it pretty easily. The layout and schematic for the
>M9058 distribution board are on my web site, along with the schematic
>for the LEDS-and-switches circuit.
Yes you do need the frontpannel disk insert. There is both write protect
and online functions. The alternate is just hard jumper it for enable
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