Re: WANTED : in-circuit IC tester

Hi, maybe you are referring to the Board Walker which is similar to the
Microsciences ICT-101?
Also th B&K 560 IC tester has a LEARN function in order to memorize how the
ICs of a PCB are wired.
----- Original Message -----
From: "Dan Roganti" <ragooman@gmail.com>
To: "Technical Tools Mail List" <techtoolslist@flippers.com>
Sent: Wednesday, July 31, 2013 6:39 PM
Subject: Re: [Techtoolslist] WANTED : in-circuit IC tester

> Hello,
>
> I hope you don't mind me chiming in on this thread. I've been subscribed
> to
> this list for a while now but I haven't had much chance lately to read
> everything. But I'm glad I did now.
>
> I haven't seen a portable ICT ike this before. It would be great to find
> one like this, as I build/repair all sorts of vintage equipment, arcades
> as
> well as computers. In the 70s and 80s we had one that was built into a
> desk, with a control panel, the various test cables, and floppy drives to
> hold test programs. I still can't remember who made this, but it was very
> powerful. It would have a library for almost every digital chip for its
> time, both TTL and CMOS. And then you can customize the tests by writing
> your own programs. For each circuit card, even when they use the same IC,
> it might be wired differently - some might have inputs wired to ground -
> or
> some outputs loop back to inputs on the same IC. So a standard test vector
> for a specific IC won't work at all. With the programming capability, you
> can customize the same library for each and every circuit card. And then
> you identify that location on the board via the RefDes location. So all
> you
> have to do is load the test program for the circuit board and it instantly
> knows how the board is wired.
>
> I heard someone on this thread might scan the manual for this one ?? I've
> been tempted to build one myself for many years, I think I may have to
> pursue this even more now. Hopefully that manual may have schematics to
> use
> as a reference. If someone could provide a code dump of the Firmware in
> the
> Eproms, I can disassemble the code to see what all they have going on
> inside that tester - it would make for good reference in case you have to
> repair one. Because there's a boatload of circuit boards (arcade
> &computers) between myself and a couple of friends here in the
> Pittsburgh -
> that all the time in the world isn't enough to continue fixing them with
> out some additional test equipment like this.
>
> Dan
>
>
> On Tue, Jul 30, 2013 at 11:24 AM, Fabrizio Vasile
> <fabrizio.vasile@gmail.com
>> wrote:
>
>> Thanks for replying.
>> This Fluke device seems more or less like a logic probe and a logic
>> comparator, I have three of them (one HP and two B&K).I meant I was
>> looking for a device that can test TTLs probing their logic functions and
>> not comparing outputs.Yes, I know, this can be done manually with a
>> simple
>> logic probe and a datasheet ( and your brain...) but I was also curious
>> on
>> how these in-circuit testers work and want to try one (like the missed
>> ICT-101).
>
>
>>
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Received on Wed Jul 31 12:59:10 2013