[Techtoolslist] Alpha Electronics Dynamic Integrated Digital ICTester on eBay

[John Robertson]

On 07/09/2013 2:01 PM, 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).

> 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..:)

>


If these are CPU controlled boards then you may want to consider 
investing in the Fluke 9010 or 9100 series CPU exercisers - you will 
need an assortment of CPU pods too of course. Can get expensive, but the 
"Learn" function can tell you a fair bit about the memory layout of the 
board.

Mind you these tools are mostly for 8 bit and only a few 16 bit CPUs 
from the 80s. Not a lot of use on modern boards.

John :-#)#

> ----- Original Message ----- From: "John Robertson" <jrr at flippers.com>

> To: <techtoolslist at flippers.com>

> Sent: Tuesday, July 09, 2013 10:47 PM

> Subject: Re: [Techtoolslist] Alpha Electronics Dynamic Integrated 

> Digital ICTester on eBay

>

>

>> On 07/09/2013 1:26 PM, Fabrizio Vasile wrote:

>>> Really a very interesting device!I was looking for a similar tester 

>>> able to doing TTL in-circuit but I'm arrived too late..:)

>>> Is there any chance to get another one or a similar device?

>>> I can swap my B&K Precision 550 and 552 models logic comparator for  

>>> an in-circuit tester.

>>> John, did you still need scans of the manual for the B&K Precision 

>>> CMOS tester?

>>>

>>

>> Hi Fabrizio,

>>

>> I don't recall personally needing the scan of that manual, but if you 

>> want to email it to me I shall put it up on the TTL FTP site.

>>

>> Someone just sent me a Sencore SC3100 manual which is heading up 

>> right now..

>>

>> John :-#)#

>>> ----- Original Message ----- From: "John Robertson" <jrr at flippers.com>

>>> To: <techtoolslist at flippers.com>

>>> Sent: Tuesday, July 09, 2013 9:46 PM

>>> Subject: [Techtoolslist] Alpha Electronics Dynamic Integrated 

>>> Digital ICTester on eBay

>>>

>>>

>>>> I chatted with the seller and he confirms that it does NOT power 

>>>> up. So chances are the battery backed up system ROM has failed.

>>>>

>>>> Item 390623172259

>>>>

>>>> He reduced the price on his own from the original asking $59.95 to 

>>>> $19.95.

>>>>

>>>> Pity. I was hoping to find a good one to extract the program from 

>>>> to save mine...

>>>>

>>>> If someone here buys it and CAN extract the ROM data I'd sure like 

>>>> a copy!

>>>>

>>>> John :-#(#