Sorry... I always,wanted a 30 but never had one. The thought of a 3000 with a 8 inch floppy was intriguing! The 33 was in a desk and was a freight damaged thing we picked up.. never attempted to try to fix ( no built in floppy on 33)
We mainly used and maintained series 2 and 3 machines. ... at the very end we did have a series 40 but never had to work on it.
Ed Sharpe - Archivist for SMECC
On Tuesday, January 12, 2021 Tracy Johnson <[log in to unmask]> wrote:
Ed Sharpe on this list may have a good insight.
Give him time to wake up however it is 0630 in his time zone.
On 1/11/21 11:28 PM, grant wrote:
> External Email
> Hello, I was referred here from VintHPcom at groups.io , I am trying to restore a series 30 and am hoping to get some insight, on repairing this unit. I have repaired the power supply and all is within spec. But now I need to find the fault keeping it from running. Ideally finding a spare set of boards would be the best but ,most likely this will be a long shot. I have the schematic, ce and diagnostic manuals and understand this is where the experts can be found.
>
> I can give a little description of what it can do.
> On power up run light is on and stays on (I believe it should halt) it my understanding that when it is halted the cpu self test can be run .
> If halt is pressed the light comes on but it is not halted. I found by pressing dump . It will start to handshake to the drive but freezes and the halt light will light. It is now halted and I can run the cpuself test which fails on test 23(230) Rass register test. This is near the end of the rass tests.
> The manuals solution is to replace the cpu board,then replace the bic board and lastly reseat the rass.
> I am hoping the rass is not gone and it is some failed logic.
> Any help for a good starting point would be appreciated, or just a extra mind or 2 to pinpoint a starting point.
>
> Thanks,
>
> Grant
>
> http://www.bitsavers.org/pdf/hp/3000/schems/30070-90009_S33_schem_Jan79.pdf
>
> http://www.bitsavers.org/pdf/hp/3000/diagnostics/30070-90044_HPIB_Diags_Vol1.pdf
>
> http://www.bitsavers.org/pdf/hp/3000/ce_handbooks/30070-90010_HPIBsysCE_May87.pdf
>
>
> Sent from my Galaxy
>
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--
Tracy Johnson
BT
NNNN
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