test-drb April 2015

test-drb@ccmp.vtda.org

182 participants
220 discussions

by wulfman＠wulfman.com

I am converting a 68008 HMI emulator back to a 68000 emulator. there are 2 headers that must be changed from 68008 to 68000 j1 and j2 i need a person that owns this emulator to pop off the plastic covers and record the jumpers soldered on the headers i can provide pictures to bitsavers of the 68008 conversion as well as pictures of the 68302 hmi emulators and a diagram of the 68008 headers. -- The contents of this e-mail and any attachments are intended solely for the use of the named addressee(s) and may contain confidential and/or privileged information. Any unauthorized use, copying, disclosure, or distribution of the contents of this e-mail is strictly prohibited by the sender and may be unlawful. If you are not the intended recipient, please notify the sender immediately and delete this e-mail.

9 years, 7 months

IBM 5120 again.

by supervinx＠libero.it

I've a request for a friend of mine. He's experiencing vertical bars on the display, characters repetitions and video shifting. For example, AABBCCDDEEFF or LOAD0 LOAD0 xxxx xxxx The 5120 completes its post. We suspect the video card shift reg or similar. He told me he cleaned all contacts and cheched all the cards. We need the SY34-0193 or SY31-0552 manuals. Can someone help? Thanks! -- Vincenzo (aka Supervinx) --==ooOoo==-- My computer collection: http://www.supervinx.com/OnlineMuseum --==ooOoo==-- You can reach me at: www.supervinx.com www.facebook.com/supervinx http://www.youtube.com/user/supervinx http://www.myspace.com/supervinx

9 years, 7 months

11/34 sanity check

by derschjo＠gmail.com

While I was waiting for the Ridge's disk to dump over a 9600bps serial port, I finally got a chance to work on my 11/34. Picked it up last summer and it was in good shape but the power supply was completely dead. I've rebuilt the supply and last night I worked out the last few kinks. So at this point all voltages are spot-on, the AC LO and DC LO signals are high (these are active low, right?) but I can't get the machine to respond at all -- the "DC ON" and "RUN" lights are lit up brightly, and the "SR DISP," "BUS ERR," and "MAINT" lights are glowing dimly. The status register display is dark. The system does not respond to any keypresses on the panel. I'm getting better with UNIBUS stuff but I wanted to run this past you guys before I whip out the debugging tools and start tracing things. I've taken it down to a pretty minimal configuration, sans any memory or other stuff. Here's what I have in the main backplane (all others are disconnected for the time being) from right to left: Slot 1: M7266 (CPU) Slot 2: M7265 (CPU) Slot 3: (AB) M9301 (bootstrap terminator) / (CDEF) M7859 (front panel board) Slot 4: empty Slot 5: empty Slot 6: empty Slot 7: empty Slot 8: empty Slot 9: (AB) M9302 (terminator) The "empty" slots have Grant Continuity boards installed and the NPG jumpers on CB1-CB2 are all present on the backplane. I've confirmed that all the right voltages are making it to the backplane (and I've cleaned up those damned Molex connectors as well, just to be sure). Is there anything I'm missing? Anything I should try? Does this failure mode sound familiar at all? Thanks as always, Josh

9 years, 7 months

Equipment available in Wichita, Ks

by microfilm＠microfilm.kscoxmail.com

I'm with Microfilm Services, Inc in Wichita, Ks. We've been in business nearly 50 years, and have to do some serious house cleaning. We are a microfilm service bureau and laser printing shop. These industries have long relied on what is now old equipment. Our cameras were fed by PDP11/34's with data coming in on 9T tape. Our laser printers were fed by 9T tape and Bus & Tag online interface. At this time, we have the following equipment for sale. You good folks get the first crack at it. Anything unsold as of Friday, May 1, 2015 will go on ebay. Anything unsold after that will go to the recyclers. Make offer on any/all, buyer arranges freight for large items, pay shipping on smaller items, from Wichita, Ks. Laser Magnetic tape drives, 6250bpi, one available. StorageTek 2920 tape drives, 6250bpi, two available. 3480 cartridge drive. All of these are Pertec interface (2x50 pin). Exabyte 8000 external DAT tape drive, SCSI interface. Tandberg 1.2GB QIC tape drives, internal, SCSI interface, several available. ** HARD DISKS *** Micropolis 1355 (ESDI, 151MB, 5.25", full height) - Several on hand Imprimis 94155-67 Wren-II (ST506/412, 56MB, 5.25" full height) - At least 4 on hand, possibly more Other assorted ESDI hard disks. Bus & Tag cables - multiple pairs available Bus & Tag terminators - lots. Barr Systems Bus & Tag ISA interface for PC, with D-sub to Bus & Tag cable. I have several of these cards, and two different host computers. One ran Windows NT Server 4.0, the other ran MSDOS. No idea if either host computer still functions. EPROM's - 27c128, 16k x 8, 12.75v programming voltage. I have 9 of these sitting next to me, and should have at least another 20-30. DEC DCJ11-AE 11/70-on-a-chip - I have several of these chips available, all believed to be functional. They came from Xerox 4090 printer controllers, which use a customized backplane. I have an entire 4090 controller available, working, as well as assorted cards. DEC h771-a power supply. I think these are for an RX01 drive? Two available. Never seen them in my time here, so assume the worst re: function. DEC h7834 (LA-34) power supply. One available. Astec power supply - 4 rails, 5v @ 3A, 12v @ 3A, 12v @ 20A, 5v @ 150A (not a typo). 220v input. These fed the modified Massbus card cages in the 4050 and 4090 print controllers. Four available. Link Technologies MC5 terminals, rebadged by Xerox, 220v. These appear to be locked into ADM3A emulation for use on Xerox printer controllers. Sun Microsystems power controllers, with line cables, have 3. (E-M Solutions Model 10, 250VAC) Sun Microsystems rack, one available. System Industries rack, one available. Bell & Howell CM-3700 COM recorder Comstor COM recorders, 2 available Canon Canofile 16mm microfilm cameras, with heads. Minolta DAR automatic 16mm microfilm camera Complete Xerox 4090 laser printer with online (bus & tag) interface, 9T tape drive. Complete, operational Xerox 4635 with Sun x86 controller. Misc solid state relays, mechanical relays, contactors, motors (12vdc, 20vdc, 24vdc), power supplies. I'm open to offers on any/all, we just need it gone. Photos available. Equipment is available for inspection by appointment. We can accept paypal (including credit cards via paypal), company check, money order, cash (in person only). Local sales and pickups are subject to sales tax. Thank you for any interest! --Shaun Microfilm Services, Inc. 316.269.2203

9 years, 7 months

Still looking for VAXstation 3100 / Model 76 RAM

by polemon＠gmail.com

Hello, this is my first time posting to this ML. I'm trying to restore my old VAXstation 3100 / Model 76, to a more stable working order. One of the biggest problems, seems to be finding RAM modules for it. I've been looking for them in various places for many years now, but nothing has really come up. I seriously considered making them myself, as I have pretty decent skills in lay-outing PCBs, and electronics. I also need those rubber grommets, that hard drive used to be attached with to the chassis. The rubber seems to break down after twenty five years or so, and they start to become goo, kinda like warm licorice. Pretty much any periphery for the 3100/M76, like periphery, etc. I'm interested in that. Anything except the monitor, probably. I do have the GFX card in the machine, but the monitors fetch huge prices, and a big heavy thing like that, would cost a fortune to ship to Germany. Oh right, I'm in Germany. I'd pay for shipping and all that, of course. Cheers, --polemon

9 years, 7 months

Sad News: The passing of Roe Peterson

by useddec＠gmail.com

A mutual friend told me about this a week or so ago, but I was waiting to get the obit before forwarding it on to the list. He will be missed. http://www.legacy.com/obituaries/leaderpost/obituary.aspx?pid=174716697 Thanks, Paul

9 years, 7 months

IMSAI chassis color/texture...

by philip＠neoncluster.com

Hi Bill, Screens, and the like (projectors etc), use a different color theory from pigments such as paint. One is additive color theory, the other is subtractive. You will be hard pressed to find a match between the two. I?ll forward you and Al a photo showing the 7690 pantone chip places on my IMSAI case as a side by side comparison. Color-wise, it?s almost a perfect match. Phil > On Apr 25, 2015, at 2:50 AM, Bill Sudbrink <wh.sudbrink at verizon.net> wrote: > > Al Kossow wrote >> On 4/24/15 1:22 AM, Philip Lord wrote: >>> https://365pantone.wordpress.com/2013/12/02/pantone-7690/ >>> >> >> It's not the color so much as correctly duplicating the texture. > > Exactly. I'm talking with a couple of local (to me) paint shops. > They all have high tech color scanning and can scan my good chassis > for the color. The debate over whether the texture was accomplished > by some kind of powder coating or air brushing is the big thing. The > original documentation talks about "IBM Blue" which is also a pantone > color. Neither look "right" to me... on my computer screen anyway. > I have not seen an actual paint chip. > > Bill S. > > >

9 years, 7 months

looking for info of the DEC Remote Services Console

by henk.gooijen＠hotmail.com

I saw a few listings on eBay of the DIGITAL Remote Services Console. I have one in excellent condition, and it would be nice to put it in use. But so far, I have not been able to find *any* documentation. Info on the four 25-pin sub-D connectors would be a great start. They are labeled A1, A2, B1, and B2. For pictures in the auctions, I'm guessing that A1 connects to a VT-style terminal and A2 connects to the system console port. That implies that the B connectors are intended to connect to modems. But I do not want to connect anything until I've seen documentation! Does anybody have info on this nice box? thanks, - Henk

9 years, 7 months

11/34 sanity check

by jnc＠mercury.lcs.mit.edu

> From: Josh Dersch > the power supply was completely dead. I've rebuilt the supply Just out of curiousity, what was the failure mode? (Also, trying to figure out of the failure could have killed things...) BTW, is it in a BA11-K box, or a BA11-L? > the AC LO and DC LO signals are high (these are active low, right?) Yes. All UNIBUS signals are active low _except_ for grants, if memory serves... > The status register display is dark. Hmmm. > The system does not respond to any keypresses on the panel. Sounds like you've got the variant with the real ("Programmer's") front panel - that's a plus. Although it's too bad that variant doesn't have a "HALT/CONTINUE" switch - it would have been good to power it on with the HALT on, which would have prevented it from trying to do any bus cycles. No response to HALT/CRTL, though? Although I'm not sure if it would respond to that if it was in a double-bus fault loop (NXM on trying to respond to a NXM). > I've taken it down to a pretty minimal configuration, sans any memory > or other stuff. Always wise... :-) > Slot 3: (AB) M9301 (bootstrap terminator) / (CDEF) M7859 (front panel board) Most 11/34's run those cards in slot 4, not 3 (probably to leave room for the FPP/Cache in slot 3), but slots 3 and 3 are (AFAIK) identical, so it should be OK to run them there. > the NPG jumpers on CB1-CB2 are all present on the backplane. Err, I hope that's a typo for "CA1-CB1" - tying CB1 to CB2 (+15V) would not be good (although if you did do it, it should be harmless in this configuration). I don't really have much to add to Don's message, about the next things to try. There doesn't seem to be a way to configure the M9301 to have the machine halt on power up, which would to my mind be the ideal. It might be worth throwing a 'scope probe on MSYN, to see if it's trying to do bus cycles. Noel

9 years, 7 months

Logic Analyzers and In-Circuit Emulators

by aek＠bitsavers.org

I spent the last week trying to document some of my analyzers and ICEs. There are tons of photos, firmware dumps and some new manuals on bitsavers under appliedMicrosystems, biomation, hmi, futuredata, hp/te hp/64000 and hp/64700. The HMI-200-68000 manual that arrived today had the 68K DOS software in the binder, zipped and up now under bits/HuntsvilleMicrosystems Has anyone ever noticed a pattern to the numbering on the underside of MMI PALs? It would be nice not to have to lift the labels off them. The ones I indentified were B7304 14L4 B7320 16L8 B7321 16R4 B7830 20S10 B7840 20L8 Most are protected. Every once and a while I found one that wasn't. I'd be interested in other AMC ICE firmware dumps to add to the archive. I've made some progress identifying the buses and what the various chunks of firmware are for. Next thing to do is trace the pinouts and see if the house-marked 6809 memory mapper is a MC6829. From looking at the manual, the HMI-200 is kind of interesting in that it can run without a target. The Applied Microsystems units require a 'null target' board.

9 years, 7 months

← Newer
1
...
4
5
6
7
8
9
10
...
22
Older →

Jump to page:

2024

2023

2022

2021

2020

2019

2018

2017

2016

2015

2014

2013

2012

2011

2010

2009

2008

2007

2006

2005

2004

2003

2002

2001

2000

1999

1998

1997

test-drb April 2015