Rescue 1130: 2014 Pickup of an IBM 1130 System and More rescue1130.blogspot.com

Bench test of 1132 printer power box - part 3

rescue1130.blogspot.com·41w·rescue1130.blogspot.com

Bench test of 1132 printer power box - part 2

rescue1130.blogspot.com·41w·rescue1130.blogspot.com

Bench test of 1132 printer power box - part 1

rescue1130.blogspot.com·41w·rescue1130.blogspot.com

Removing and testing power supply box from 1132 line printer

rescue1130.blogspot.com·41w·rescue1130.blogspot.com

Finished trace by trace and datasheet by datasheet examination; one issue arose that must be pondered

rescue1130.blogspot.com·42w·rescue1130.blogspot.com

Extensive desk checking of PCB and final design for core memory replacement for 1130 system

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High level design of replacement for 1130 core memory

rescue1130.blogspot.com·42w·rescue1130.blogspot.com

More parity error instances - new fault in the core memory stack

rescue1130.blogspot.com·42w·rescue1130.blogspot.com

More restoration work on 2501 Card Reader - buttons, lights, cable repair, short circuit check

rescue1130.blogspot.com·42w·rescue1130.blogspot.com

Reinstalled the power box inside the 2501 card reader

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Discrepancy in logic diagrams and theory of operations documentation

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Running IBM disk diagnostic 309 against the Virtual 2315 Cartridge Facility - part 11

rescue1130.blogspot.com·43w·rescue1130.blogspot.com

Replaced circuit breaker on IBM 1130 +6V power regulator

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Running IBM disk diagnostic 309 against the Virtual 2315 Cartridge Facility - part 9

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Running IBM disk diagnostic 309 against the Virtual 2315 Cartridge Facility - part 8

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Very sporadic parity errors - need to capture evidence to find and fix

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IBM 1130 typewriter (console printer) repair and adjustment - part 12 - completed!

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IBM 1130 typewriter (console printer) repair and adjustment - part 11

rescue1130.blogspot.com·45w·rescue1130.blogspot.com

Scope on typewriter feedback signals to verify timings and adjustments of the typewriter

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Finished checking and fixing up the diagnostic load file

rescue1130.blogspot.com·48w·rescue1130.blogspot.com

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