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A1 Main Board Removal
Removal Procedure
1. Remove the A2 CPU Board Assembly referring to \A2 CPU Board Assembly Removal".
2. Disconnect the following cable assemblies from the A1 board.
a. Four (or two for Option 001) cables connected to the Unknown connectors
b. The cable assembly from the transformer
c. Two cable assemblies from the DC-DC Converter
3. Remove the nut which fasten the Ext Trigger connector on the rear panel.
4. Remove the four studs, that secure the A1 board to the chassis, by rotating them with a
at
bladed screwdriver.
5. Remove six screws that secure the A1 to the chassis.
6. Remove the A1 assembly from the chassis.
A2 CPU Board Assembly Removal
Removal Procedure
1. Remove the cover referring to \Cover Removal".
2. Disconnect the four
atcable assemblies and the wire assembly from the A2 board.
3. Remove the four screws that secure the A2 board to the stud.
4. Remove the A2 board from the chassis.
The ROM and EEPROM on the A2 assembly may be transferred to the new
Note
assembly to minimize the repair time and parts cost. Refer to \Replacing the
A2 CPU Board Assembly" for more information.
A5 AC Inlet Board Assembly Removal
Removal Procedure
1. Disconnect the cable assembly with the 4 pin connector from the A5 board.
2. Remove the screw which xes the green and yellow wire connected to the neutral terminal
of the power cable connector to the bottom of the chassis.
3. Remove four screws that secure the A5 board to the chassis.
4. Remove the A5 board from the chassis.
Keyboard Assembly Removal
Removal Procedure
1. Remove the cover referring to \Cover Removal".
2. Disconnect the two
atcable assemblies and the wire assembly from the front side of the A2
board.
3. Remove the two
at head screws that secure the front panel from the bottom.
3-10
Assembly Replacement
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Table of Contents
Troubleshooting
