HP3000-L Archives

March 2019, Week 3

HP3000-L@RAVEN.UTC.EDU

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Subject:
From:
Stan Sieler <[log in to unmask]>
Reply To:
Stan Sieler <[log in to unmask]>
Date:
Sun, 17 Mar 2019 21:37:44 -0700
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"Bob is correct"

Yep!

As was I, back on March 11 :)

Note the 9x8 series have a similar battery holding box (for a potential UPS
battery).
IIRC, they may even have a harness to connect to the battery.
BUT, a battery in that spot *WILL NOT WORK AS A UPS BATTERY* on a 9x8.

Just saying, to save any curious 9x8 owners some time and money in the
future.

Stan (yes, one of my 9x8 systems has a UPS battery inside, doing nothing
... too lazy to take it out) Sieler


On Fri, Mar 15, 2019 at 1:01 PM Wyell Grunwald <[log in to unmask]>
wrote:

> OUCH beyond belief, Bob J. is correct, thanks Bob !!!
>
> Did get a new Duracell big box battery and replaced it just fine.  Had to
> cut the steel holder tray just a bit since the battery was a little taller,
> but everything looks just great.
>
> Now to deal with the DS1287 problem, a total YUK.
>
> That large 6V sealed lead acid battery you describe backs up system memory
> to allow
> power fail recovery. That is NOT the system clock battery. The real time
> clock battery
> in a 9x7 is small and part of an IC package (DS1287). See link below:
>
> http://www.3kranger.com/HP3000/mpeix/en-hard/ReworkDS1287/ReworkDS1287.htm
>
> Bob J. -- Ideal Computer Services
> www.icsgroup.com
>
> > Sent: Wednesday, March 06, 2019 8:13 PM
> > Subject: System Halt
> >
> > I have some strange errors on one of my HP3000 boxes:
> >
> > ISL> clkutil
> >
> > Enter command : (r) read clock, (s) set clock (e) exit>r
> > error : bad status returned from pdc read
> > Enter command : (r) read clock, (s) set clock (e) exit>s
> >
> > Enter Date  MM/DD/YYYY
> > 03/06/2019
> > Enter Time  HH:MM:SS
> > 21:21
> > WED, MAR  6, 2019,  9:21:00 PM
> > ok (y/n)?y
> >
> > clock set!
> > Enter command : (r) read clock, (s) set clock (e) exit>r
> > error : bad status returned from pdc read
> > Enter command : (r) read clock, (s) set clock (e) exit>e
> >
> > ISL> START NORECOVERY MESSAGE
> > MPE/iX launch facility
> >
> > Initialize_genesis - Version : <<870204.1552>>
> >
> > SYSTEM ABORT 1327 FROM SUBSYSTEM 110
> > SECONDARY STATUS:  INFO = -1013, SUBSYS = 110
> > SYSTEM HALT 7, @$052F
> >
> > Any ideas ?
> >
> > Follow up !!!  I failed to mention this is a HP3000 927LX (my HP3000
> 928RX
> > takes a wafer battery on the circuit board)
> >
> > Several of you responded that it was caused by a faulty system battery.
> You
> > were correct !
> >
> > I carefully disassembled the system to find the battery, which is in the
> > power supply drawer on the bottom of the machine.  Let me tell you, this
> > system is built like a tank with layer upon layer of thick steel, with
> > multiple screws and is not easy to get apart.  Once apart, this has a
> huge
> > box battery inside.  Specifications are:
> >
> > Panasonic Rechargeable Battery LCR6V4PL (6 Volt, 4 Ah/20HR)
> > Constant Voltage Charge
> > Voltage regulation
> >   Cycle use 7.3 – 7.5V
> >   Standby use 6.8 – 6.9V
> > Initial current less than 1.6 amperes
> > Matsushita Electric  -  made in Japan
> > Dimensions:  2 ¾” wide x almost 2” deep x 3 ¾” high (for metric people
> 70mm
> > wide x 50mm deep x 95mm tall)
> >
> > It is completely dead with zero volts output.  Must have had its fair
> share
> > of charge/recharge cycles over 30+ years !!
> >
> > Evidently, they put these in tons of products, because replacements are
> sold
> > all over the place, BUT, the replacements are all over 3 ¾” tall, most
> being
> > 4 ¼” (105 mm) tall !  So, my replacement battery will have to find a
> > different place in the power supply drawer.  There is a place I can put
> it,
> > but I will have to plastic wire tie it to death so it won’t go anywhere.
> > Plus I will have to do some fixing on the leads into the circuit board.
> And
> > what a collection of dirt I need to remove (with Q-tips and alcohol),
> > especially on the huge fan in the back.
> >
> > Thanks, as usual, from the great list for all the advice.
> >
> > Wyell Grunwald
>
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