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X Functions Question - Part Number



#9

I have a couple of X Function modules. Both say "X Functions" on top but both have different part numbers.

One is HP 82180A and the other is marked HP 5061-5256.

Are these both identical?


#10

Mike,

No, I don't think they are identical. From an old posting by Steve (Australia) with a very useful set of part
numbers, here is what I dug up:

HP 5061-5256 X Functions (hp41)

Hp 82180-90002 HP82180A Extended Functions/Memory Module Quick Reference Card (Singapore Mar 82)

Perhaps he, or someone else more knowledgeable than I am,
would like to explain the difference between these.

You can find Steve's posting in the Forum archives in the
fourth set, posted on 27 Sept. 2000.

That's all I've got for now.

Ion Abraham
Albuquerque, New Mexico


#11

I'm fairly sure what you are seeing are date codes.

I may have a reference here somewhere...

"At the bottom of every module there is a four-digit date code stamped into the plastic. This is not the same as the type number on the label under the module, the date code is in the plastic itself and is not so easily seen. The four digits can be interpreted as YYWW, where YY is the year code and WW is a week code. Add YY to 1960 to give the year when the module was made. ... WW is actually the the week of manufacture plus 8..."

Extend you HP-41, p639


#12

Steve,

Thanks for responding. Mike will have to see if that
makes sense to him.
Your reply does not explain, however, why those two codes are exact separate entries in your very nice part number list. Any ideas?

Regards,

Ion Abraham
Albuquerque, New Mexico


#13

> Your reply does not explain, however, why those two

> codes are exact separate entries in your very nice part

> number list.

I assume you are referring to this?

> HP 5061-5256 X Functions (hp41)

> Hp 82180-90002 HP82180A Extended Functions/Memory Module Quick Reference Card (Singapore Mar 82)

The first refers to a module, the second to a quick reference card.

In general the list I posted had the following removed

1) serial numbers

2) duplicates

3) notes on condition

4) non-HP stuff

I may have accidentally left some serial numbers on the list, but in general what I have on my list is what appears on the item.

5061-5256 is NOT the date code, but whether it is a part number, or some combination of part number and version info, or what, I don't know. incidentally the X Functions module I have in my hot little hands right now has a date code of 2339.

If the number 5061-5256 has changed, then it may well indicate a change in the ROM. I believe there were a number of changes to the X-Functions ROM.

Note that at least some of these changes resulted in a change to the header displayed in cat 2.

The versions I have information on are

-EXT FCN 1B (2 versions!)

-EXT FCN 1C

-EXT FCN 2D

See Extend your HP41, p630

Incidentally the one quoted above identifies itself as 1C, and another I have identified itself as 1B (but id not inside its original module holder, so I can't help you with any further info.

Oh, my CX id a 2D (but that's internal)

I think that may be all the information I have at the moment.

Well, maybe not. The original info was:

> One is HP 82180A and the other is marked HP 5061-5256.

I would check what cat 2 says. My bet would be it's a 1B, but I'm prepared to be surprised :-)

#14

I'm not talking about the 4 digit numbers that are stamped into the plastic. Both types have the 4 digits stamped into the plastic.

What I am talking about is written in white painted characters.

On one it is:
HP82180A
Made in Singapore

There is also a 2212 stapmped into the plastic

On the other it is:
HP5061-8256
Made in Singapore

There is a 8624 stapmped into the plastic

Both of these numbers that begin with HP, look like part numbers. The date code is seperate.


#15

Check out my previous post on this topic. I cam to the same conclusion after I looked into it more closely.

And with your further information, maybe you have a 2D version, since the date code is quite recent.

The real question is what does cat 2 show, and yes, HP made several versions of the rom.


#16

HP82180A is version 1B

HP5061-8256 is version 1C


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