A little Christmas game



#37

Hello dear friends,
This is a little game for the Christmas's week, if you aren't still gone to holyday.
To document my job regard the complete restoring of the HP calculators, in this case an HP-97, I have took a picture of all the calculator's component. This picture will be inserted in my future auctions on the AS.
But I have forgot something.
Can you find the lacking parts?




For Katie: detail of the first image.

Have you an happy Christmas and all you need for the new year.
Take care...

Ignazio


Edited: 20 Dec 2010, 2:23 p.m. after one or more responses were posted


#38

The glue you are going to use to put the HP-97 together!!!


#39

Hi Namir,

only elbow oil ;)

#40

Power cord?


#41

Hi Bruce,
no, The lacking part is an inner component.

Sorry.

Ignazio

#42

Solder

#43

Where are the sheets that are used to insulate the gold-plated key contacts from the buttons and the circuit board?


#44

What about the slide out metal tab (the manual calls it a 'hasp') that is the attachment point for the optional security cable?


#45

Katie, I concur - I don't see this part on Ignazio's pictures either.

#46

Hi Katie, hello Walter,

perhaps it's not visible but I guarantee that it's present.
I will insert an image ASAP.

Ignazio

#47

The 4 spacers are beneath the key contact sheet...

#48

Hi Ignazio e Buon Natale!!
two springs n.21 of the printer, the pusher ones, maybe


#49

Ciao Aurelio e Buon Natale anche a te!
Look carefully at the fourth image, at the right of the paper tear bar.

Take care.

Ignazio


#50

Hi Ignazio, the springs in that picture are only two and , as from the exploded wiev of the manual (I've not a 97 in my collection so that I can't check it personally) there are two kind of spring (n.20 and n.21) 2+2 = 4 ; if I'm not wrong the spring , as I can see, are only 2 on your desktop, let me know, thanks.

PS: Ignazio, where are you from?

Edited: 20 Dec 2010, 11:09 a.m.


#51

Hi Aurelio,
I have understood now, but I haven't take apart the holder so you can't see the pusher springs. Try again.
Regards

Ignazio

P.S. I'm an HP collector and live in Iglesias (CI)... and I have a lot of HP-97.

#52

Hello everybody

I would say the paper for testing the printerhead ehehehehe


Merry christmas everybody !!!!


#53

Hello Alberto, ciao.
Sorry, you have to try again...
I'm a lucky man, the printer head is good...


Merry Christmas to everybody.

Ignazio


#54

How about the 3 copper leaf springs that sit under the 3 slide switches to contact the PCB?


#55

Hi Katie,
they are above the keyboard PCA, holded in position by the silicon grease. Look at the second image.
I have inserted a detail of the backbone at the bottom of my first post.

Try again, please.

Ignazio

Edited: 20 Dec 2010, 12:02 p.m.


#56

Ok, here's my last guess...

The copper sheet that forms the contacts for the switches inside the card reader. The nylon balls are in the picture but not the copper.


#57

Excuse me Ignazio if I answer for you:

Katie, if you see carefully in the fourth picture, copper switches are shown..... now much better...Ignazio has cleared it, increasing the brightness and now the picture shows more detailes.........
Cheers


#58

Thanks Aurelio!

#59

Shouldn't there be a little canister of magic smoke in there somewhere?
;-)


#60

Good one Bruce. ;-)

#61

The magic smoke is freed when I remounted and turned on the computer!

Ignazio


#62

One of the paper-detect contacts seems to be missing...

Joel


#63

Hi Joel,
no, sorry, they are both present.

Ignazio

#64

Printer bushing 5040-9227 is missing from the left (driven) side of the lead screw.


#65

Hi Randy,
it's very difficult to see in the third image but it's again inserted in the body of the printer (Housing, 5040-9201).

Try again, you will be more lucky ;)

Thanks for your welcome participation.

Ciao,

Ignazio

Edited: 21 Dec 2010, 9:43 a.m.

#66

Remove one bushing but not the other? That's not consistent.

So where are you hiding the two 22uf capacitors on the card reader pcb? C1 and C2 - the caps in series with the head windings. Are they under the Christmas Tree?


#67

Hi Randy,

Game over!

You are right, the three caps (2*22uF + 1*6,8uF) are missing from the card reader PCB!

You are the winner... but you have won... only a Bravo!

Merry Christmas to everybody and many thanks for your participation and sympathy.

Ignazio

Edited: 23 Dec 2010, 4:41 a.m.

#68

Hi Randy,


Quote:
Remove one bushing but not the other? That's not consistent.


Why you think no consistent leave the bushing in place?
Allow me to learn more...thanks.

Ignazio


#69

Just my observation of the "game". Both bushings are removable but only one was removed and displayed. The second one was, IMO, not visible in the printer carriage.


#70

Hi Randy,

I think you are right, I agree with you.
I overlooked that small detail. I apologize to everyone for their inaccuracy.
Sorry.

Take care.

Ignazio Cara


#71

Hello Ignazio,
The only missing piece is a bottle of mirto on the table.

Merry xmas to you (all).

Giancarlo from Milan


#72

Hello Giancarlo,
of course, you are right.
When you came in Sardegna with your mtb we can taste our nectar.

Ciao e augurissimi per un felicissimo Natale.

Merry xstmas to all our friends too.

Ignazio


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