Greer Company
Greer Company
Greer Company
Greer Company
Crane Systems
1918 EAST GLENWOOD PLACE, SANTA ANA, CA 92705
Tel: (714) 259 9702 Fax: (714) 259 7626
MicroGuard
424 Operation/Troubleshooting Manual Horizontal Display Hydraulic Cranes
45 of 52
W424103 REV A 02/13/01
4. Loosen the two screws holding the Computer
backing plate to the box.
5. Remove the Computer Board Assembly.
There are three computer chips on the Main Computer
Board that must be of the correct type. These three chips
are:
IC2 Executive ROM
IC3 Duty ROM
IC7 Personality ROM
The Executive ROM must be specific to the system.
The Duty ROM contains a copy of the load chart and
must correspond to the Load Chart Number of the
particular serial number machine.
The Personality ROM contains data that is unique to the
particular serial number machine.
6. Install
the:
•
Executive ROM Chip.
•
Duty ROM Chip.
•
Personality ROM Chip.
7. Place the Main Computer Assembly into the
computer box and tighten the two mounting screws,
make certain to allow access to the ribbon cables.
8. Reconnect the two Ribbon Cables being certain to
fully engage the connector and locking tabs
9. Replace the Computer Box cover and secure with
the four screws.
COMPUTER BOX REPLACEMENT
COMPUTER BOX REPLACEMENT
COMPUTER BOX REPLACEMENT
COMPUTER BOX REPLACEMENT
TERMINAL BOARD AND BOX ONLY. USE THE
COMPUTER BOARD FROM THE ORIGINAL BOX.
1. Remove the Main Computer Board.
2. Disconnect all cable connectors from the Computer
Box.
3. Remove the four screws securing the Computer Box.
4. Remove the Computer Box.
5. Install the new computer and secure with the four
mounting screws.
6. Reconnect all cable connectors.
NOTE THAT CONNECTORS 1 AND 2 ARE SIMILAR
AND THEY ARE COLOR-CODED AND MUST BE
CONNECTED WITH THE COLOR ON THE CABLE
MATCHING THE COLOR ON THE SOCKET.
CHIP REMOVAL AND INSTALLATION
CHIP REMOVAL AND INSTALLATION
CHIP REMOVAL AND INSTALLATION
CHIP REMOVAL AND INSTALLATION
When removing and installing chips be certain the power
is switched off. Do not touch the chip pins unless you are
properly grounded. Static electricity can damage chips.
1. Make certain the power is off.
2. Remove the chip to be replaced with a chip removal
tool.
NOTE:
Chip removal and installation tools are
available from any electronics store.
3. Insert the new chip into the installation tool per the
instructions on the package.
4. Insert the new chip into the socket, making certain
that the notch in the chip (1) lines up with the notch
in the socket (2).
5. Double check that all pins are properly inserted into
the chip socket. These pins are very easily bent.
Failure to have all pins inserted can cause damage
to the system and the chip.