ASR-32 troubleshooting

Vintage Computer Festival vcf at siconic.com
Thu Oct 6 18:16:05 CDT 2005


On Thu, 6 Oct 2005, Tony Duell wrote:

> Assuming those are the rails the carriage runs over, those are
> effectively a 'data bus' carrying the bits of the incoming character
> (converted to parallel from the incoming serial bitstream by the cam
> mechanism at the rear left of the typing unit). For some reason, one bit
> is set that shouldn't be. Either there's something playing up in that
> receiver cam unit, or the transmitter side is setting a bit that it
> shouldn't be.
>
> Is this an ASR32 (5 bit) or ASR33 (7 bit) machine?

It's an ASR32.

The problem turned out to be a tine in the reader that slipped out of its
linkage.  I fixed that and now everything is working again.

Phew!

Thanks for all the suggestions and advice!

-- 

Sellam Ismail                                        Vintage Computer Festival
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