HP3000-L Archives

January 2021, Week 2

HP3000-L@RAVEN.UTC.EDU

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Tue, 12 Jan 2021 11:26:29 -0800
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I take it the 33 is long gone, they use the same boards.GrantSent from my Galaxy
-------- Original message --------From: ED SHARPE <[log in to unmask]> Date: 2021-01-12  9:46 a.m.  (GMT-08:00) To: [log in to unmask] Subject: Re: [HP3000-L] [EXT]: Hp 3000 series 30 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>> This message is not from a UTC.EDU address. Caution should be used in clicking links and downloading attachments from unknown senders or unexpected email.>> * To join/leave the list, search archives, change list settings, *> * etc., please visit http://raven.utc.edu/archives/hp3000-l.html *-- Tracy JohnsonBTNNNN* To join/leave the list, search archives, change list settings, ** etc., please visit http://raven.utc.edu/archives/hp3000-l.html ** To join/leave the list, search archives, change list settings, ** etc., please visit http://raven.utc.edu/archives/hp3000-l.html *



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