FRAM71B
User’s Manual
FRAM71B 1.00
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©Hans Brueggemann, 2016
7 Installation
Never install or remove FRAM71B without prior removal of all power supplies.
Failure to do so will permanently damage your FRAM71B.
1. Prior to installation, make sure to take proper ESD protection measures.
2. Make a backup of your data.
3. Remove all batteries and the AC connector from your HP-71B.
4. Remove all modules from ports 1,2,3,4 and the HP-IL module.
5. Turn the calculator upside down and remove the Card Reader / Card Reader dummy
from the compartment.
6. Insert your FRAM71B module into the Card Reader bay as shown. Gently press the mod-
ule into place by pushing on the two Allen screws, until the front bezel of the module is
nearly (0.5 mm) flush with HP-71B’s faceplate:
7. Check that the two jumpers on FRAM71B are in their default position:
8. Close the Card Reader port.
9. Re-install the batteries, close battery compartment.
10. Turn the calculator upside up and press [f] [OFF] [ON]. Calculator may wake up with
"MEMORY LOST”. Press [ON] to remove that message.
11. Initialize FRAM71B to 32 KByte RAM by pressing POKE"2C000","9300" [ENDLINE].
1)
12. Press [f] [OFF] [ON] to notify your HP-71B about the new configuration.
13. Press [MEM] [ENDLINE], display should read approx. 49699 Bytes: Done!
14. Now, switch the calculator off and re-insert other modules as desired.
1)
Do not omit this step. If you want to use a previously known good configuration, you may
use that instead of "9300".
No Jumper placed in
"SYSRAM ENABLE" position.
Jumpers placed in
"parking" position.
