Re: Alpha Electronics Dynamic Integrated Digital ICTester on eBay

Hi Jose.
Is it true that you have to disable any clock while testing TTL in-circuit
with B&K Precision 560?
Is ICT-101 the famous Board-Walker?
In conclusion, did you find this B&K Precision 560 useful (I have chance of
getting one at reasonable price)?
A scope is what I'm missing now!

P.S.
What software revision mount your IC tester 560?Did you have also the
pc-side software for RS232 communication?

----- Original Message -----
From: "Jose Luiz Martins" <joseluizmartins@gmail.com>
To: "Technical Tools Mail List" <techtoolslist@flippers.com>
Sent: Wednesday, July 10, 2013 10:41 PM
Subject: Re: [Techtoolslist] Alpha Electronics Dynamic Integrated Digital
ICTester on eBay

>I have a HP 10529A, ICT-101, BK-560 and BK-552, Fluke 9010A and one
> 150Mhz Tek Scope.
>
> As many others said, I used the Fluke 9010A to troubleshoot Address,
> Data Bus and ROM checksums.
>
> When some board's region where found suspect, I use BK-560 or ICT-101
> to find some obvious problem in TTLs and RAMs (in case of using
> BK-560) and them I use the HP 10529A.
>
> Based on my personal experience, in-circuit IC tester will tell you if
> one IC is good (in most cases), but a bad reading is not necessarily a
> bad IC. This is where the HP 10529A in conjunction with a logic probe
> and a logic pulser can help.
>
> I use all that stuff when a board schematics is not available - very
> common in brazilian boards (local Taito versions i.e. Galaxian -
> Fantastic, Time Fighter - Time Pilot, Olympic Games - Olimpiadas,
> PacMan, Donkey Kong Defender, etc...).
>
> But in most cases, the scope is my best friend.
>
>
> JL
>
> On Wed, Jul 10, 2013 at 6:01 AM, Fabrizio Vasile
> <fabrizio.vasile@gmail.com> wrote:
>> Hi Andrew.
>> Yes, I have an HP 10529A as well as a BK Precison 550 (TTL9 and a 552
>> (CMOS)
>> but as, I said, I don't find them 100% reliable.
>> I'm thinking about a B&K Precision 560 like this:
>> http://www.electronicrepairegypt.com/bk-precision-model-560-progammable-ic-tester.html
>>
>> Do you say that it behaviours more or less like a comparator?
>> ----- Original Message ----- From: "Andrew Welburn"
>> <andy@andysarcade.net>
>> To: "Technical Tools Mail List" <techtoolslist@flippers.com>
>> Sent: Wednesday, July 10, 2013 10:26 AM
>>
>> Subject: Re: [Techtoolslist] Alpha Electronics Dynamic Integrated Digital
>> ICTester on eBay
>>
>>
>>>
>>> On 09/07/2013 22:01, Fabrizio Vasile wrote:
>>>>
>>>> OK, John, tomorrow I will do the scans (there are also schematics) ad I
>>>> will e-mail to you.
>>>> Regarding TTL in-circuit testing, since I repair arcade PCBs for job ,
>>>> I'm looking for a good and reliable tester which can point me in right
>>>> direction at least (logic comparators are not very reliable IMHO).
>>>
>>>
>>> You must be doing something wrong then, the HP 10529A is your best
>>> friend. Don't think that a good in-circuit tester is going to tell you
>>> anything different to a comparator. In fact, in-circuit IC testing is
>>> less
>>> comprehensive than comparison, because a comparator actually takes
>>> account
>>> of the circuit hook-up, where an in-circuit tester has problems with
>>> tied/forced lines, conflicts and busses.
>>>
>>> In-circuit testing cannot help you find faults that are to do with dry
>>> joints/cut tracks/speed issues, good though they are.
>>>
>>>> Yes, obviously best thing would be to test TTL manually with the truth
>>>> tables and a logic probe, but , let's say, you have no schematics of
>>>> the
>>>> PCB and dozens of other board that are waiting you..:)
>>>
>>>
>>> Like everything, an in-circuit ic tester is another tool in your
>>> arsenal
>>> against faulty pcbs, but there is no one tool that does the lot.
>>>
>>>
>>> Andrew Welburn
>>> http://www.andys-arcade.com
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>>
>>
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Received on Wed Jul 10 16:51:13 2013