RES: [Techtoolslist] HP 10529A

[Jose Luiz Martins]

Hi Filip,
 
The HP 10529A is quite easy to use. You have to put a known good IC on on
the card that has two micro switch banks (forgot it's part number). The
switches are used to "say" to 10529A what pin are input and what is output.
So, check on IC's datasheet the input pins, and move the correspondign
switch pin close to IC for input and move the switch far from IC for output
pins. You are now ready to test.
 
The +5 and gnd will be supplied by test clip on the IC under test.
 
If the IC under test is Okay, nothing happens, just the +5V will light. If
something wrong, the corresponding led will flash, indicating some missing
signal on that pin.
 
Pay attention that the 10529A is not 100% correct, it's a very good tool for
obvious problems. For counters and flip-flops troubleshooting, you must to
power on the board with test clip attached or reset the board first,
otherwise you will have different data inside the ICs.
 
Sorry for my english.
 
 
José Luiz Martins

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De: techtoolslist-bounces at flippers.com
[mailto:techtoolslist-bounces at flippers.com] Em nome de Filip Hautekeete
Enviada em: terça-feira, 20 de junho de 2006 12:40
Para: Technical Tools Mail List
Assunto: Re: [Techtoolslist] HP 10529A


Anyone who has ever used one of these ? I think the dipswitches are related
to the pins which are logic outputs but even when playing around with those
switches I am still getting unsatisfactory results :-( 
 
Any comments would be welcome...

----- Original Message ----- 
From: Filip  <mailto:fhaut at griffion.com> Hautekeete 
To: Technical Tools Mail List <mailto:techtoolslist at flippers.com>  
Sent: Monday, June 19, 2006 6:04 PM
Subject: [Techtoolslist] HP 10529A

Hello all,
 
I recently got ahold of an HP 10529A logic comparator but I am not sure how
to use it.
 
The unit came with a self test card and a card with textool socket
10529-60014.
 
When I insert the test card and supply 5V to the card connectors the logic
comparator LEDS blink shortly with a 2 second interval or something. If I
also connect the logic clip on top of the "dummy" IC I get a long blink
(approx 1 sec) and then still the short blink. I don't know if this
qualifies as "normal" behaviour.
 
To test the 10529A comparator I tested with a Wonderboy PCB. I insert the
appropriate 74LS chip in the textool socket (pin 1 aligned to the "1" mark
(near the SW error led)) but no matter how I fiddle around with the dip
switches or COMP/CLIP switch I always get red comparator LED's to remain
turned on (I expected either all of them to light up or remain off). I have
tried with different 74LS chips on different locations but I can't get any
decent result out of this.
 
Can anybody tell me how to use this 10529-60014 thing (no manual here) or
tell me what I am doing wrong ? A short description of what the dip switches
and comp/clip switch are for would be welcome...
 
Best regards,
 
Filip
 



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