Sean -
You might get lucky, IF Jameco still has documentation & software for the board.
I would guess circa 1982-1985 (after IBM XT introduction with 256 kB standard).
?
Japan in 1970s and Taiwan in 1980s ... had major production issues with PCB fabrication and assembly (required higher QC in source materials).
?After-sale? (under warranty) Component-level service bench techs ?
were frequently heard ?swearing? at the incompetence across the Pacific.
?
Thru-hole ?vias? for double-sided boards frequently failed.
Solder alloy and Flux formulations (Asia didn?t want to buy Weller or Ersin/Multicore) were especially troublesome. In many instances, the old solder has to be removed (difficult de-soldering due to impurities in Asian solder).
These problems continued through 1980s,
until the ?bad shops? closed or changed their production operations.
?
Using a Quality 63/37 or 60/40 ?RA? solder (like Kester ?44?), resolves most issue,
other than copper solder trace failures.
greg
===
From: Sean Ellis <seanellis9 at gmail.com>
To: Chuck Guzis <cclist at sydex.com>, "ClassicCMP? <cctalk at classiccmp.org>
Subject: Re: Identifying a Mystery ISA Card
Well, thanks for all the help guys - Finally narrowed it down to a
JE1078 on Stason:
https://stason.org/TULARC/pc/io-cards/I-L/JAMECO-ELECTRONIC-COMPONENTS-Mult…
I can believe this thing was made in Taiwan - I had to repair probably
1/4 of all the joints on the card because they all had gone dry or had
holes in the joints. Have you ever seen solder bubble like boiling
water? That's how bad the original solder on this card was. It also
absolutely stank the whole way through...
one of the white whales.
anyone have OEM documentation for their 5" Elite SMD or IPI drives?
The only thing I've ever been able to find was an installation manual for the SMD verison
I recently acquired an ADV11-D Qbus A/D board and having been working on a RSX11M+ driver for it. It is similar enough to the ADV11-C that the driver I wrote for the -C works ok, but the -D is DMA capable.
It seems to have two extra CSR registers in addition to the CSR, and read buffer. Does anyone have documentation for this board? It is mentioned in the Oct. 88 Microsystems Option Guide and both RSX and VMS supported it. It was also mentioned in the Dec 92 Real Time Products Technical manual.
It has a 40 pin IDC connector that appears to have some amount of differences from the ADV11-C and no where have I seen any info on the DMA capability.
Does anyone have a ADV11-D user manual or XXDP source code for testing it?
Thanks,
Mark
Sean, Fred, and Glen ?
Sorry, late to this ISA card thread.
I worked in Tech Support for an Apple/IBM/HP/Novell retail computer dealer,
during summers in early 1980s, when in Graduate school.
So I saw the ?wide selection? of add-in cards for IBM PC/XT and compatibles.
==
This is a ?Taiwanese generic 6-Pak? Add-In (8-bit ISA) expansion card.
RAM 384 kB; Serial port, Parallel port, Game port, AND Real Time Clock !
Glen is CORRECT, the National Semiconductor MM58167 is the RTC IC.
Texas Instruments bought out National in 2011, data-sheet still available.
The ?solder-in? B1 battery has been cutout (open space below/left of MM58167).
Replacement battery (likely ~ 3 to 3.6 Volt) can be acquired from Digi-Key.
Take measurements and closeup photo of ?B1? Area, to CONFIRM Model and Size.
?
My Quick Guess ?
Tadiran TL series 1/2 AA with Axial pins, 3.6V High Capacity Cylindrical battery
http://www.tadiranbat.com/assets/tll-5902.pdf
Tadiran TL-5902/P .... $6.65
https://www.digikey.com/en/products/detail/tadiran-batteries/TL-5902-P/5125…
greg, w9gb
chicago
===
Date: Thu, 15 Oct 2020 17:34:58 -0700
From: Glen Slick <glen.slick at gmail.com>
To: "General Discussion: On-Topic and Off-Topic Posts"
<cctalk at classiccmp.org>
Subject: Re: Identifying a Mystery ISA Card
On Thu, Oct 15, 2020, 5:24 PM Fred Cisin via cctalk <cctalk at classiccmp.org>
wrote:
>> On Thu, 15 Oct 2020, Sean Ellis via cctalk wrote:
>> I got this (currently exploded) mystery RAM, RTC, and I/O board out of
>> a dead Sanyo luggable the other night, and once I replace the burned
>> up tantalums I'd like to put it in my 5150 so I can get a full 640k of
>> RAM.
>> Question is, does anyone know what this board is? It's a completely
>> anonymous board with not even an FCC ID to go off of. I'm assuming the
>> RAM is at least strapped right; all the banks are full which should be
>> 384k, and the Sanyo was a 256k machine = 640k.
>> Here's a couple pictures; one's an actual picture of the card and the
>> other is a simplified TULARC/TH99-esque vector of what's on the board.
>> https://i.imgur.com/WhO4cco.jpg
>> https://i.imgur.com/uBCkv5G.png
>
> It resembles, although doesn't match, the AST Six-Pack.
> But the AST Six-pack had a clock circuit.
Isn't the 24-pin DIP part number MM58167 ,shown in the images referenced above,
an RTC chip?
I'm back to working on the PDT11/150 again, the bottom floppy is weird:
It doesn't read rx01 disks, period. Top one is fine. So I tried swapping
all of the connectors on the control board so the top one was PD1: and
the bottom was PD0: Sure enough the top drive works fine as PD1: and
bottom is still dead so it's a drive issue.
Pull the drive, put in a spare, button it up, and sure enough it still
doesn't work. Any ideas?
Also I recall my MiniMinc/150 (which is in parts in my shed) had EIS and
FIS, but this one only reports FIS. Did DEC make pdp11/03 expansion
chips that only had FIS?
C
Noticed in another thread an 8L is upcoming on the persons restoration
list. Making separate post so more visible. The G228's have a 20 uF 50V
electrolytic capacitor on them. I have had two short. When they short its
a race between the trace on the board burning up or the backplane 30 AWG
wirewrap wire burning up. One was on an 8/I I was restoring where the
backplane wire providing the power burnt up at power on. Wasn't shorted
before power on. The other was I saw one G228 had a burnt track while I was
washing the cards in an 8/L. I had not applied power at that point so that
was old damage. Usage history is unknown.
As a minimum I would recommend applying current limited 30V to the capacitor
on each card out of the machine before initial power on. Low enough limit may
allow the capacitor to reform without shorting. The same part # capacitor is
still available for protective replacement. The capacitors don't read shorted
before power is applied. Unknown if they will short if the machine is powered
on periodically.
I've head lots of reports of all the failures in 8/L's. I replaced the
one G228 and some bulbs but otherwise the machine was fine. It did need a lot
of cleaning and I did do my normal power supply reform and checkout.
I have a collection of British magazine CDs and DVDs from the mid-1995ish to
2013ish. They contain tools, programs, etc. I tried 5 and they mounted under
Win10 so they should work on old win releases: XP,7,8?
Would anyone be interested in acquiring these? Talk to me and we can work
out how.
peter
|| | | | | | | | |
Peter Van Peborgh
62 St Mary's Rise
Writhlington Radstock
Somerset BA3 3PD
UK
01761 439 234
"Our times are in God's wise and loving hands"
|| | | | | | | | |
> From: Ethan Dicks
> ODT works from my 11/34 with bad RAM,
?? The -11/34 doesn't have 'real' ODT (like the one in the LSI-11's,
KDF11's, KDJ11's), which is in microcode).
The M9301 and M9312 bootstrap ROM boars contain a console emulator, but it's
in macrocode.
Noel
Like most of us, as a result of COVID, I've been mostly stuck at home.
Consequently, I've been going through and organizing a lot of boxes
of old stuff that just accumulated and I did not consider to be part of my
vintage computing collection. However, I have noticed (and chuckled
over) the fact that others are collecting computers and software that I
"just used". Anyway, I'm finding stuff that I think others may appreciate
more than I and I'm wondering about its value.
First, I have what I believe is a pretty early AOL CD and I understand that
it may be collectable. It includes the original silver, blue and red
cardboard
sleeve that reads (in part):
America Online CD-ROM!
IT'S NEW! IT'S FREE!
Now with World Wide Web Browser!
Any thoughts on this would be appreciated. Most of what I find with
Google seems to be related to a boom about five years ago.
I have also found boxes full of other software, along with their original
packaging.
Original DOOM, original Lemmings, Wing Commander, Wing Commander II, Falcon,
several old Microsoft Flight Sims, etc., etc.
Thanks,
Bill Sudbrink
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