Removing/Installing the P600 Processor
Step 1. Remove the blower cover. Remove three screws from the top of the cover and two screws on
the sides. Tilt the cover up and slide it out.
Step 2. Remove the interface cover. Remove the three screws along the left side of the unit. Then
remove the screw at the front of the cover. Lift off the cover.
Step 3. Remove the four screws that attach the heat spreader to the P600 board using a T10 driver.
Slide the board out of the connector.
Step 4. When installing the P600 board, insert the board on an angle into the connector. Then position
the heat spreader over the board and gently push the heat spreader down. Install the four screws.
Replace all covers.
Removing/Installing the Bias/Processor Carrier
Step 1. Remove the blower and interface covers as previously described.
Step 2. Use a hex wrench to remove the GPIB connector from the rear of the mainframe Disconnect all
cable assemblies from the interface board.
Step 3. Disconnect all cable assemblies from the bias/processor carrier board.
Step 4. Use a T10 driver and remove the screws that attach the board to the chassis. Use a T20 driver
and remove the 4 screws that attach the board to the backplane assembly. Lift the board out.
Step 5. To reinstall the bias/processor carrier board, perform the above steps in reverse. Replace all
covers.
Removing/Installing the Front Panel Assembly
Step 1. Remove the two screws along the front of the bulk supply cover as well as the four screws on
each side of the front panel assembly that attach the front panel assembly to the chassis.
Step 2. Slide the front panel assembly forward and away from the chassis to access the test points for
troubleshooting.
Step 3. To completely remove the front panel assembly, disconnect the ribbon cable between the
front panel board and the bias/processor carrier board at the front panel board.
Step 4. Disconnect the wires going to the S1 switch assembly. For reassembly, make a note of the
color coding of the wires and the pins to which they are connected.
7 Service and Maintenance
412 Keysight N6700C Operating and Service Guide
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