S-COM 6K Owner's Manual page 165

(If your 6K isn't V2.0, you can upgrade it with a low-cost kit from S-COM.)
Thank you for purchasing the 6K Upgrade V2.0!
Enclosed you will find:
• A replacement RAM that also contains a battery and clock/calendar.
• A replacement EPROM containing V2.0 firmware.
• Update pages for the 6K manual.
You will need:
• A soldering pencil and solder.
• Two short pieces of bare wire for jumpers.
• A needle-nosed pliers.
• A small screwdriver or similar tool to extract ICs from sockets.
1. Disconnect power and cabling from the 6K.
2. Remove the push-on jumper (shunt) from the header marked "MEM". Discard it.
3. Remove integrated circuits U3, U4, and U5 from their sockets. Discard them.
4. Locate the 8-pin IC socket for U3, which is now empty. Install a wire jumper from pin 1 to
pin 8. Install the other wire jumper from pin 5 to pin 6. Solder the two jumpers in place.
(Note: Count the pins counter-clockwise.)
5. Carefully push the supplied DS1644 into the socket for U4. Carefully push the supplied
V2.0 EPROM into the socket for U5. Be sure the ICs are correctly oriented in their sockets.
6. Initialize the controller by performing a cold start. (Press the INITIALIZE pushbutton and
keep it pressed while you turn the power on. Release it when you hear the CW message.)
7. Additional information: The DS1644 module you installed contains a 32K byte RAM, a
lithium battery, and a timekeeping circuit. When main power is lost, the battery inside the
DS1644 maintains the data stored in RAM and also powers the timekeeping circuit. The
original board-mounted lithium battery is no longer needed, and may be removed by
unsoldering it from the board (if desired).
8. Update your 6K manual according to the supplied sheets.
6K V2.0 12-14-01
This is the end of the V1.02 manual.
V2.0 upgrade information follows.
164