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Disassembly and Replacement
9.3.4
Detector Assembly
4.
Disconnect the connector for the wire harness to the power entry
module from the socket on the power supply (refer to Figure 9.9).
5.
Disconnect the ground wire connector (green and yellow wire) from the
power supply.
6.
Remove the four thread-forming screws which secure the power supply
to the base assembly. Note how one lead of the power supply cable
assembly (which connects to the main circuit board) is attached between
the power supply and the base assembly. This wire provides instrument
grounding and must be in place when the power supply is replaced.
REPLACEMENT
7.
If the power supply is being replaced with a new one, transfer the power
supply cable assembly from the old power supply to the new power
supply. Maintain the same wire harness polarity.
8.
Place the power supply in position over the four mounting lugs. Locate
the grounding wire of the power supply cable assembly between the
power supply and the right front lug.
9.
Insert and tighten the four screws to secure the power supply to the base
assembly starting with the screw through the ground wire. DO NOT
OVER TIGHTEN!
10.
Connect the ground wire from the power entry module.
11.
Connect the wire harness from the power entry module.
12.
Replace the mono board assembly.
13.
Replace the main circuit board (refer to "Section 9.3.1 - Main Circuit
Board").
14.
Replace the main cover assembly (refer to "Section 9.1.3 - Cover
Assembly").
REMOVAL
1.
Remove the Foil Shield.
9 - 16
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Troubleshooting
