HP-71B ver 2CCCC - Anyone ever have one?

[Dave Frederickson]

Hi Mike,

First of all, the top half only has the display chips and CPU. The ROM and RAM are on the bottom half with the serial number.

Answers:
1. My info shows versions 2CCCC on units with date codes 2713A to 2745A but the range could be wider.
2. Just the bottom half.
3. N/A
4. Removing all the solder can be tricky. Then your left with the issue of dissimilar metal corrosion. I'd recommend against it.
5. Using an ohm meter and referring to the Hardware IDS it shouldn't be too much trouble to figure out.

Dave