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Full Version: Help, 48G+ serial pins got pushed in.
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I did a bad, bad thing. I misaligned the 4-pin serial cable connector with the mating connector on my 48G+ and pushed the calculator's 4 pins in too far! I pulled them back out with a needle-nose pliers, but the calculator won't communicate serially anymore.

I guess I have no other choice but to open it :-( so I can re-solder the pins on the inside. With all the different instructions of how to disassemble a 48, can anybody recommend the best, first choice method? Or should I send it to someone that has experience? Upgrade memory at the same time to 256KB+ (currently has 128KB)?

Calling all advisors.. Thx.

Matt

Hi Matt,

Well, I have copies at least three different methods that I have found. One of the methods reportedly will work without having to drill any holes. I took apart a 48G with a method requiring sokme cutting and drillig, and it worked out OK but it sure would be nice to do it without leaving a loose body and all the holes!


I will look for these files, and fwd them to you.


BTW, I had a pin push in, too, but pulled it right out with pliers and all is fine. I have a very nice new cable made by Konstantin Lysenko, and it has a little "arrow" to show the way, and it fits snugly, so I hope I don't make the misalignment again!


regards,

Bill

You might want to try Randy Sloyer at FixThatCalc.com. I believe his specialties are the 48's, both the S and G series, and the Pioneer series machines (32SII, 42S, 20S, etc.) He sometimes posts here and his site and e-mail addresses are listed somewhere on one of the pages of this Museum site.

>it sure would be nice to do it without leaving a loose body and all the holes!

Exactly.

>I will look for these files, and fwd them to you.

Thanks. I believe there are a couple procedures at hpcalc.org too. I need to take a look at them.

>BTW, I had a pin push in, too, but pulled it right out with pliers and all is fine.

Sounds like you were lucky and pushed the shield pin in.

Thanks for mentioning Randy. I see his repair pricing is pretty reasonable- $39.

I'll have to ask him if he can upgrade memory as well. My feelings are that it could get too expensive to justify (especially cause I'm savin' for a 49G+).

Matt

Can you publish these files for all of us? I'd be interested specifically in the method of opening a HP 48 without any drilling...

Thanks, Victor