Data General 6039 Dual 8in Floppy Drive: Difference between revisions

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==Examples==
==Examples==
{{ExampleDetails|Condition=Working|Serial Number=3938}}
{{ExampleDetails|Condition=Working|Serial Number=3938}}
== Configuration ==
{| class="wikitable"
|+
!Function
!Jumpers
!Options
|-
|Drive ID Swap
|W1, W11
|Center to W1 = Left drive DP0 (boot)
Center to W11 = Right drive DP0 (boot)
|-
|Drive Device Code
|W5-W10
|Connect on W5,W6,W8,W9 = 33 , default code
|}
''Information from {{Archive web|url=http://www.novasareforever.org/user/archive/public/docs/dg/sw/os/dos/093-000222-00__How_to_Generate_Your_DOS_System__1978.pdf|name=How to Generate Your DOS System}}''


== Card Views ==
== Card Views ==
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|-
|-
|{{ImageCompare|Picture Left=DG6039Logic top-backlit.jpg|Picture Right=DG6039Logic bottom-backlit-flipped.jpg|Picture Width=1600}}
|{{ImageCompare|Picture Left=DG6039Logic top-backlit.jpg|Picture Right=DG6039Logic bottom-backlit-flipped.jpg|Picture Width=1600}}
|}
=== Control Data BR803E Floppy Drive Logic Board ===
{| class="wikitable mw-collapsible mw-collapsed"
|+
|{{ImageCompare|Picture Left=Cdcbr803e top-frontlit.jpg|Picture Right=Cdcbr803e bottom-frontlit-flipped.jpg|Picture Width=1600}}
|-
|{{ImageCompare|Picture Left=Cdcbr803e top-backlit.jpg|Picture Right=Cdcbr803e bottom-backlit-flipped.jpg|Picture Width=1600}}
|}
|}


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* Issue related to writing discovered with right drive. Debugging is ongoing.
* Issue related to writing discovered with right drive. Debugging is ongoing.
** Issue disappeared during attempt to debug. Potentially related to loose connection, unable to proceed with further diagnostics
** A partial layout and schematic were created for the debugging and are available here: https://git.techtangents.net/akbkuku/controldatabr803elayout#






== External links ==
== External links ==

Latest revision as of 19:03, 29 March 2025

Data General 6039 Dual 8in Floppy Drive
General Info
Manufacturer Data General
Device Category Floppy Drive
Identifiers
Model Number 6039
Technical Specifications
Removable Storage 8in SD SS Hard Sectored Floppy Disk
Power Requirements
Power Connector Hardwired Mains
QR Code
(Click for Asset Tag)


The Data General microNOVA uses a unique bus that made it incompatible with existing drives like the 6030. The drive control board in the 6039 doubles as the interface board and connects directly to the backplane.

The 6039, and presumably the 6030, uses hard sectored 8 in single sided floppy disks. Several Data General documents state that the drive would be compatible with IBM 3740 floppy disks which would be soft sectored. From the testing I've been able to do so far I have not been able to make soft sectored disks work.

The floppy drives in the 6039 are CDC BR803E .

Examples



Example Info
Condition Working
Serial Number 3938
(Click for Asset Tag)


Configuration

Function Jumpers Options
Drive ID Swap W1, W11 Center to W1 = Left drive DP0 (boot)

Center to W11 = Right drive DP0 (boot)

Drive Device Code W5-W10 Connect on W5,W6,W8,W9 = 33 , default code

Information from How to Generate Your DOS System (archived)

Card Views

6039 Main Logic Board

Control Data BR803E Floppy Drive Logic Board

Repairs - Modifications

2025-02

  • Reformed capacitors in power supply
  • Began using unit for first time

2025-03

  • Issue related to writing discovered with right drive. Debugging is ongoing.


External links

Retrieved from "https://wiki.techtangents.net/index.php?title=Data_General_6039_Dual_8in_Floppy_Drive&oldid=4813"