test-drb December 2003

test-drb@ccmp.vtda.org

252 participants
453 discussions

by jos.mar＠bluewin.ch

My recently acquired 11/34 has an emulex board that has no description. It assembly number is cu1110401, it has two 2901 bitslices. Any pointers as to what it could be ? Jos Dreesen

21 years, 3 months

MDS-800 Info Needed

by rigdonj＠cfl.rr.com

Hi Ray, Ok I just pulled the card out of one of my 800s. The terminal connects to the top center DB-25 connector on the back of the 800. Internally, all six of those ports connect to one cable that plugs into the top of the Monitor card. See <http://www.classiccmp.org/hp/mds-800/chas-ful.jpg>. (BTW You do know that the CPU and FP cards need to be installed in specific slots don't you? if not, then read <http://www.classiccmp.org/hp/mds-800/mds-800.htm>. It details the card order. The first two cards must be in the correct slots. If you have emulator cards or disk drive cards remove them till you get the system working, there's some installation specifics about them too). The toogle switch on the Monitor card needs to be turned towards the card. On the top RH side of the card are two LSI ICS. Directly below them are two rows of jumpers (straps) to set the baud rate. The only one installed is the one >from pad 25 to pad 26. I believe this cards is set for 9600 baud (or MAYBE 19200). I haven't used it in a while but it does work. I just grabbed some terminal cables at random and the second one that I tried worked so it's nothing specail. I use the same cable to connect to my SB-180. Down near the bottom LH side of the card are a few more jumpers. These set the address of the ROM. Mine has a circuit trace between ped 30 and 31. Your's should already be set that way. Once you get everything connected and turned on, press and release the IRQ 1 switch to bring up the ROM monitor amd then press the space bar a few times. You should get a display similar to <http://www.classiccmp.org/hp/mds-800/alive.jpg>. You won't get the baud message, that's from my terminal. You should get the copywrit message and a dot prompt. You can enter Q to get a list of the I/O reassignments. To boot the disk drive, first power everything up then load a disk in drive 1, turn on the BOOT switch (top part down) then press and release IRQ 2. Once the OS loads, turn the BOOT switch down otherwise the CPU won't register the terminal key strokes. You should get a message like that shownn at the bottom of the picture above. Joe At 10:59 AM 12/28/03 -0600, you wrote: >Hello, > >I saw your MDS-800 systems. I too have some of this stuff. I am trying to >hook up a terminal to my 800 but having no luck. I have no docs. Do you know >what connector & its pinout, baud rate, etc. to connect RS-232 to? > >Thanks, > >Ray >

21 years, 3 months

MDS-800 Info Needed

by rigdonj＠cfl.rr.com

Hi Ray, The connector and pinout are standard. The baud rate depends on the settings of some jumpers on one of the cards (the Monitor card IIRC). I think most of mine were set for 9600 baud when I got them. I think the jumpers can also be set to make the port look like DTE or DCE. I'll have to check on the jumper settings and get back to you. Joe At 10:59 AM 12/28/03 -0600, you wrote: >Hello, > >I saw your MDS-800 systems. I too have some of this stuff. I am trying to >hook up a terminal to my 800 but having no luck. I have no docs. Do you know >what connector & its pinout, baud rate, etc. to connect RS-232 to? > >Thanks, > >Ray >

21 years, 3 months

9826 & HPL

by rototype＠linuxmail.org

Hi, I've just acquired one of these (9826) via ebay, (I remember using one 15 years ago at work). The one thing I can't remember is whether HPL is supplied with these as standard, or whether all languages are options. (seems pretty daft to ship it without anything) The other problem is I can't seem to find an HPL command reference/user guide anywhere. Could you possibly help with either of these queries? Rototype

21 years, 3 months

OT: fuses

by pete＠dunnington.u-net.com

On Dec 28, 23:07, Chad Fernandez wrote: > Tony, > > the fuse itself has an "F" inside a "L" looking line. One circular end > has a symbol that I can't type and the other has a "237" "UL" and an "SA". IIRC, that F-in-an-L is the logo for Littelfuse. It certainly doesn't mean fast-blow. You probably want a slow-blow fuse for a device like this. Why? Because in many electronic devices, there's a surge of current for a short while, when you first switch it on. This is caused by the capacitors charging up, and is quite normal. > I find one cylindrical cap that is 200v and 220uf and one 250v .1uf cap > that looks like a chicklet (kind of chewing gum). I don't have any idea > how to identify a chopper transistor..... could that possibly be labeled > "Q1" and have a heat sink on it? I also see a couple transformers and a > bunch of resistors an IC and assume most of the D#'s are diodes. There > are quire a few "Q#" labeled items too. Yes, "Q1" is a designation for a transistor, normally. And the voltage ratings for the capacitors suggest they're close to the mains, which implies a sitching PSU, not a linear one. The small chicklet cap is probably an X-rated or Y-rated suppressor cap. The transformers are probably fairly small (an inch or two on a side), yes? For a linear supply, I'd expect one big transformer, probably mounted on something solid; one or more small(ish) ones are typical of a switcher. Anyway, unless this laservision player is unusual, I'd expect such a device to have a switcher. -- Pete Peter Turnbull Network Manager University of York

21 years, 3 months

Cleaning Out Attic

by technobug＠comcast.net

'Tis time to make room around here so that I can get from one end of the storage room to the other. The following items are up for grabs (freebee!) - first to holler, first to be served: **Working Stuff** Sun Monitor GDM1604-15 Digital Storage Works BA353AF /w RR42-VE CDROM DEC CRT VR320 Silicon Graphics CRT CM208643SG (modded to bring out sync input) Sun Laser Printer QA6 Apollo CRT Mod 010700-001 (this unit has double the normal horizontal freq.) VAXStation 3500 - Complete unit - boots to the point where it starts the RA70 which then makes strange noises... **Parts are Parts** Sun Four Disk Storage Housings PN595-3286-1 - Nice small four scsi disk housing w/ps. No disks (2 ea) Sparkstation 2 (2 ea) - no disk, no video Sparkstation 10 (2 ea) - one has no disk and no video, the other no disk, memory, video Xerox 6993 (branded Sun model 544) - no disk, memory, video DEC VXT2000+ missing memory card (2 ea) VAXStation 4000-60 missing disk Four PC cards from and Intergraph 2-1 workstation (National 32032): memory, video i/o, i/o (scsi??), and CPU The above items are in the Tucson, AZ area. I will ship, but you pay the freight...

21 years, 3 months

H960 cabinet side panels

by trestivo＠concentric.net

Hi Jay, I'm not sure if I'm posting to the thread or to you personally but I wanted to pass on the following: After purchasing a huge assortment of DEC stuff my inventory includes a bunch of H960 cabinets and a stack of grey side panels. I would say the panels are in good to fair condition. We are located in Melbourne, FL so anyone in need can come by see them. I have also delivered a few on the I95 corridor. I've been selling the panels for $20 to $25 each, and an H960 with 2 panels is $75. I have a few back doors as well for $25 and I have blank front panels of various sizes. If this doesn't make it to the proper thread please let me know how to get it there. Thanks, Thom This message may contain confidential, proprietary or legally privileged information. It is intended only to be read by the individual or entity named above or its designee. If the reader of this message is not the intended recipient, you are on notice that you must not, directly or indirectly, use, disclose, distribute, print, or copy any part of this message. No confidentiality or privilege is waived or lost by any mistransmission. If you have received this message in error, please immediately notify the sender and/or TARINC by telephone at (321) 768-0006 or email at webmaster(a)tarinc.com and delete or destroy any copy of this message.

21 years, 3 months

getting trs-80 basic programs into pc text files (hp2000 programs)

by bbrown314＠comcast.net

Now that I've been able to rescue some apple-II based hp2000 programs >from my old apple disks, put them in pc and load them to hp2000 emulation, I turn my attention to my large archive of trs-80 based archives. I took hp basic programs, downloaded them into my trs-80 (saved them as basic code..of course it wouldn't run on the trs-80, but the trs-80 would hold the code just fine)...these are on cassette. I know that several emulators for the trs-80 can take cassette input..what I'm looking for is a path to get the programs loaded from cassette with the final destination being a pc text file which I can then easily upload into my virtual hp-2000. Any ideas? thanks! -Bob

21 years, 3 months

DECServer 90L+ startup help

by jpl15＠panix.com

I have a pair (3 actually) of the above terminal servers - I have them cabled up, yet the two I have connected seem not to play well together... the remote terminal (a VT220) displays : >XDS90L-321, Connection Not Established - Network Not Connected The other unit is connected to a port on my 11/44, also known good, tested and working locally to the machine. The first two green leds are on , the led next to the MMJ ports flashes when I transmit data, but the '#' light remains, sadly, dark. I have used a couple of known-good 50 ohm BNC cables between them, tried powering them down and up while connected - no joy. I have Googled mightily - found a bunch for sale, lots of references to them, quite a bit of really esoteric data - but no "User Manual" yet - save for the pointer to one on a now defunct Compaq site. So I'm wondering if anyone with some experience with these little beasties could afford me a clue or two? All I want is a pair, one in the "Machine Room", one in my office, and a cable (or wireless setup) between them. Thanks In Advance! Cheers John

21 years, 3 months

OT: fuses

by fernande＠internet1.net

Hi all, I went to Radio Shack last night to buy a fuse for my laserdisc player. I needed a 125v 2amp fuse. Most of the fuses I saw were rated at 250v. I bought a 250v .75amp fuse, thinking that if I up the voltage I have to lower the amperage. The new fuse blows instantly. Am I thinking about this incorrectly? Now, I'm thinking I was wrong since the fuse still only has 110 voots running through it..... so do I still need a 2 amp fuse even if it's rated for 250 volts? Can I use a 250volt 2 amp fuse safely? I mentioned that the .75 amp 250volt fuse blows instantly..... does this indicate that another problem exists, or would the laserdisc player pull more than .75 amps? The player has been sitting in my living room, hooked up, but unused for months. I have had electrical storms here of course, but all my equipment is on a surge protector, and nothing else has gone bad.... (amps, dvd player, tv). Chad Fernandez Michigan, USA

21 years, 4 months

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test-drb December 2003