Markings (Bottom)

Markings (Bottom)

FAB 1540001, Artwork 1540000, Rev 1

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Uploaded on Oct 23, 2011

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Markings (Top)

Markings (Top)

ASSY 1540000, Serial Floppy Controller, (C)1980 Commodore Intl, Made in USA

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Uploaded on Oct 23, 2011

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Bottom Side

Bottom Side

Note the markings on the lower left.

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Uploaded on Oct 23, 2011

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Top Side

Top Side

The board is similar to the 2031S. It cannot function in its current state, a previous owner has...

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Uploaded on Oct 23, 2011

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U19-U22 Replaced

U19-U22 Replaced

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Uploaded on Oct 2, 2011

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U19-U22 Socketed

U19-U22 Socketed

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Uploaded on Oct 2, 2011

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U19-U22 Removed

U19-U22 Removed

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Uploaded on Oct 2, 2011

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Z-RAM (Bottom)

Z-RAM (Bottom)

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Uploaded on Oct 2, 2011

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Z-RAM (Top)

Z-RAM (Top)

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Uploaded on Oct 2, 2011

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SoftBox Rev 3 and 8032

SoftBox Rev 3 and 8032

CBM 8032 displaying the SoftBox's startup banner as it boots CP/M 2.2.

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Uploaded on Sep 23, 2011

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Power Wiring

Power Wiring

The original wires to the board were cut so I replaced them and the two remaining wires from...

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Uploaded on Sep 19, 2011

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Mounted and Rewired

Mounted and Rewired

The PCB has been installed on its new standoffs and the input power wiring has been redone.

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Uploaded on Sep 19, 2011

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Standoffs Replaced

Standoffs Replaced

The four original standoffs broke off during shipping. This shows the replacements. The wiring...

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Uploaded on Sep 19, 2011

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RAM and EPROMs Reinstalled

RAM and EPROMs Reinstalled

The RAM and EPROMs installed in the new sockets. The original DRAMs were also replaced with new ones for testing.

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Uploaded on Aug 28, 2011

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RAM and EPROM Sockets Replaced (Bottom)

RAM and EPROM Sockets Replaced (Bottom)

Underside of the PCB after the new sockets were soldered in.

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Uploaded on Aug 28, 2011

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RAM and EPROM Sockets Replaced (Top)

RAM and EPROM Sockets Replaced (Top)

New, machine-tooled sockets were installed.

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Uploaded on Aug 28, 2011

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RAM and EPROM Sockets Replaced (Bottom)

RAM and EPROM Sockets Replaced (Bottom)

Underside of the PCB showing the EPROM and RAM pads after desoldering.

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Uploaded on Aug 28, 2011

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RAM and EPROM Sockets Removed (Top)

RAM and EPROM Sockets Removed (Top)

All of the RAM and EPROM sockets were removed to be replaced with higher quality, machine-tooled ones.

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Uploaded on Aug 28, 2011

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