Galaxy II Operating Manual A1
Appendix
Updating Memory in the Machine
Overview of Memory on the Galaxy II
Memory on the Galaxy II machine consists of:
1. PROGRAM FLASH memory – U5
2. BOOT FLASH memory – U4
3. Battery backed RAM – U3
The BOOT FLASH and the PROGRAM FLASH must be
programmed before the Galaxy II will work.
At the very least, the machine must have a programmed
BOOT FLASH. If the machine does not have a pro-
grammed BOOT FLASH, make a copy from another
Galaxy II mainboard that has a working BOOT FLASH.
See instructions: Duplicating the Boot Flash IC.
The PROGRAM FLASH (and BOOT FLASH) can also be
updated using a PC computer. See instructions: Updating
the Galaxy II from a PC.
Duplicating the Boot Flash IC (from another
programmed Boot Flash IC)
1. Remove power from the machine (unplug the power
cord).
2. Insert a blank FLASH IC (or a FLASH IC that needs to
be updated) into IC socket U6. Make sure that it is in
the socket with pin 1 in the proper position. (See figure
B1)
3. Restore power to the machine (plug in the power cord).
4. Press the TEST switch.
5. Choose HARDWARE TEST/SOFTWARE UPDATE
MENU
6. Choose DUPLICATE BOOT FLASH (To EPROM 1)
a. Screen will say FLASH COPY – BYTES
COPIED XXX K – where XXX will increment as it
programs the FLASH.
b. When done it will say SUCCESS! DONE
COPYING FLASH
7. Remove power from the machine (unplug the power
cord).
8. Remove the FLASH IC in socket U6.
9. The Galaxy II machine, where the programming was
done, can now be plugged in and returned to service.
10. Take the programmed FLASH IC to the machine that
needs the new BOOT FLASH and with the POWER
OFF (machine unplugged), insert the FLASH IC into
U4, making sure that pin 1 is in the proper position.
11. Restore power to the machine (plug in the power cord).
The Machine should boot properly and run at least the
BOOT FLASH CODE. If the PROGRAM FLASH (in
U5) is not programmed, or is corrupted, the software
may need to be updated to run. If unexpected results
occur with the PROGRAM FLASH, the BOOT
FLASH should run by itself to allow loading or copy-
ing software.
Figure B1 - Mainboard Detail
U4
U6
Updating the Galaxy II Software from a PC
What is needed:
1. RS232 to RS485 adapter with 6 wire cable. Arachnid
Part Number 41955.
2. Laptop or PC with an available serial port.
3. G2UPDATE software loaded on the PC.
4. If the RS232 to RS485 converter will not plug directly
into the laptop a standard 9-pin serial cable adapter may
be needed. Usually this will be a serial to USB adapter.
(This cable cannot be a null-modem cable.)
Procedure: (Unplug the power cord to the Galaxy II first.)
1. Connect the 6-wire cable from the adapter into the
COM OUT connector on the Galaxy II mainboard.
2. Plug the RS232 to RS485 adapter into the serial port of
the laptop or connect through serial cable from the seri-
al port on the computer to the RS232 to RS485 adapter.
3. Set the DIP SWITCHES on Galaxy II mainboard so
that 1, 2, and 3 are on.
