Qume DataTrak 8 Handbuch PDF herunterladen (Seite 8)

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Subject: Engineering Change Notice # 10.

Product: Double D Disk Controller - QUME DATATRAK 8 DRIVES

Revision: Band C boards. Release 2 software

Date: May 8, 1981.

The following jumped options should be changed on the QUME

DATATRACK 8 disk drive for use with the DOUBLE D disk

controller.

1. Remove programmable shunt from P.C. board socket. Bend pins

B, HL, and Z to prevent making contact. Replace shunt back

into socket.

2. Insert shunt plugs at locations C, DS, Y, and 2S.

3. Please read and perform Engineering Change Notice #5. It

applies to QUME DATATRACK 8 as well as the SHUGART SA850/851.

The following patch is required in DCM2. Location 111D hex was

OFB hex and should be changed to ODB hex. The new source code

for this line is:

TDL: ANI #(BC. DSE!BC. SD1)

ASM: ANI NOT ( BC$DSE OR BC$SDl )

Double D CP/M 2.2 distributed after Nov 30, 1981 includes this

modification (starting with S/N 2-187-1410).

ENJOY YOUR QUMES.

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Qume DataTrak 8 Handbuch Seite 8