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Spices--Were they a hot spicy repair number? - Printable Version

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Spices--Were they a hot spicy repair number? - Matt Agajanian - 04-04-2012

Hello all.

From speaking with Don O'Rourke at International Calculators & Computers, the Spice series are a service and maintenance nightmare. What makes/made them so problematic to work on?


Re: Spices--Were they a hot spicy repair number? - Luiz C. Vieira (Brazil) - 04-04-2012

HI.

I have about a dozen, half o'them working.


Re: Spices--Were they a hot spicy repair number? - Matt Agajanian - 04-04-2012

Which begs the question--why were they so troublesome then and now?


Re: Spices--Were they a hot spicy repair number? - db (martinez, ca.) - 04-04-2012

non-soldered contacts, loose/loose-able battery door, battery juice able to not only eat the ribbon cable but creep onto the pcb, suicide-prone charging system.


Re: Spices--Were they a hot spicy repair number? - Luiz C. Vieira (Brazil) - 04-04-2012

HI.

The non-working units simply stopped working. Chances are this is related to 'db's pointed-out many reasons (Hi, d.b.!). If it is a solderless unit, I have once suggested slightly bending the IC's terminals down, as shown in this drawing.

After bending it slightly and reassembling the calculator, chances are it will get back to normal operation. I have done this many times, and in most cases they worked better. In others, though...

But then again, who knows...

Success!

Luiz (Brazil)

Edited: 4 Apr 2012, 8:29 p.m.


Re: Spices--Were they a hot spicy repair number? - Michael de Estrada - 04-04-2012

One of the many Spice problems:




Re: Spices--Were they a hot spicy repair number? - Matt Agajanian - 04-04-2012

What am I supposed to see here?


Re: Spices--Were they a hot spicy repair number? - Luiz C. Vieira (Brazil) - 04-04-2012

Broken, corroded batteries contacts...?!

Edited: 4 Apr 2012, 10:45 p.m.


Re: Spices--Were they a hot spicy repair number? - Matt Agajanian - 04-04-2012

Ah! I see it now. Thanks for letting me know what to look for The pic should've zoomed in on the contacts.


Re: Spices--Were they a hot spicy repair number? - Michael de Estrada - 04-04-2012

Here's an example of what Spice contacts in good condition look like:




Re: Spices--Were they a hot spicy repair number? - aurelio - 04-05-2012

I tried to repair myself half a dozen of spices, sometimes succedding in it, in one case I requested the help of a friend of mine who did one of the best repearing work ever I've seen.
I think they are repearable but they require a lot of patience (I mean both, soldered and not soldered). The first time I opened one of them I thought that maybe the ribbon is the craziest invention of that time. I cant understand how it was possible to find inside a very very expensive (at that time) machine, such a "Achille's heel"........to replace it with a nowadays ribbon cable require a good soldering work and quite a good experience in that job. If I'm not wrong "modern" flat cables were used already in the industries at that time so I don't understand the choice of the ribbon.. for our spice calculators


Edited: 5 Apr 2012, 11:53 a.m. after one or more responses were posted


Re: Spices--Were they a hot spicy repair number? - Luiz C. Vieira (Brazil) - 04-05-2012

Automatic assembly line with a ready-to-insert component. No human intervention, less costs.


Re: Spices--Were they a hot spicy repair number? - aurelio - 04-05-2012

I see.......profict, means


Using flat cable to repair a Spice - picture - Luiz C. Vieira (Brazil) - 04-05-2012

Hi.

I have used flat cables sometimes to repair Spices. The picture below shows one of the very first repairs. It was an HP31E, IIRC. It is one of the few still working.

Cheers.

Luiz (Brazil)

Edited: 5 Apr 2012, 12:31 p.m.


Re: Using flat cable to repair a Spice - picture - aurelio - 04-05-2012

Yes, Luiz, I remember this picture: I used it and other your samples, like the H.Bible in repairing my 33c, and even with a 34c; with the second one actually the problem was not only related to the power connection. A saint named Ignazio gave back the life to "her" starting from my rough uncompleted work and now "she" lives again!

Edited: 5 Apr 2012, 1:32 p.m.


Re: Spices--Were they a hot spicy repair number? - Matt Agajanian - 04-06-2012

I've gotta ask since I've seen it here most frequently: What does IIRC mean?


Re: Spices--Were they a hot spicy repair number? - Massimo Gnerucci (Italy) - 04-06-2012

IIRC If I Recall/Remember Correctly

Remember Google is your friend ;-)


Re: Spices--Were they a hot spicy repair number? - Luiz C. Vieira (Brazil) - 04-06-2012

Hi.

Being a foreigner, not native English speaker, I feel a bit awkward writing about this, so if I am going places I should not, please let me know.

Also a wilder search would lead you here. For that matter, these are other commonly used acronyms fairly found here:

AFAIK - As Far As I Know

IMHO - In My Humble Opinion

RTFM - Read The F***'n Manual (sorry, could not help) OR

RTFM - Read The Fabulous Manual (one of the many polite forms...)

Have I missed any other as well used?

Cheers.

Luiz (Brazil)


Edited: 6 Apr 2012, 6:31 p.m.


Re: Spices--Were they a hot spicy repair number? - Jim Johnson - 04-06-2012

Is there a material that will closely resemble a battery tab that can be "re-riveted" onto the pcb? I have an HP32e that has one broken tab and I'd like to repair it so that it mimics the original. Any sources for material and repair clues?


Re: Spices--Were they a hot spicy repair number? - james summers - 04-07-2012

Another one having read the posts about IR printing from the WP-34s above:

YMMV - Your mileage may vary (ie your experience may be different)

Cheers

James

Edited: 7 Apr 2012, 1:27 a.m.


Re: Spices--Were they a hot spicy repair number? - Joel Setton (France) - 04-07-2012

LTFU - Listen to the F***ing user!!!!
FWIW (For what it's worth...)
Joel


Re: Spices--Were they a hot spicy repair number? - aurelio - 04-07-2012

Luiz, a good way, for me, this forum, to improve my poor knowledge of the English "technical" language :=)

Edited: 7 Apr 2012, 9:54 a.m.


Re: Spices--Were they a hot spicy repair number? - Luiz C. Vieira (Brazil) - 04-07-2012

You bet you're right!


Re: Spices--Were they a hot spicy repair number? - Randy - 04-07-2012

Half hard copper sheet for battery tabs

IMO, rivets are too much trouble and they become too thick, interfering with battery fit.

I have had good success fabricating a tab then drill an appropriate hole large enough to fit over the existing rivet and remaining tab of the original contact. Solder the tab onto the remaining tab. Takes far more time to fab a good contact than any other part of the job.


Re: Spices--Were they a hot spicy repair number? - Xavier A. (Brazil) - 04-07-2012

... or, simply low cost.


Re: Spices--Were they a hot spicy repair number? - Jim Johnson - 04-08-2012

Perfect! Thanks Randy!!!