A18 Cpu; Tools Required; Removal Procedure; Replacement Procedure - Keysight Technologies E8257D Service Manual

Assembly Replacement

A18 CPU

A18 CPU

Tools Required

— T–10 driver (E8267D only)

Removal Procedure

Refer to
1. Disconnect the power cord.
2. Remove the covers from the signal generator. Refer to
3. Position the signal generator with the front panel facing you.
4. Using the T–10 driver, remove the four screws from the Baseband
5. Disconnect the following ribbon cables:
6. Lift the retention levers and disconnect the A18 CPU from the A31
7. Lift the A18 CPU out of the slot.

Replacement Procedure

1. To Install the CPU, reverse the order of the removal procedure.
2. Perform the post–repair CPU Configuration process.
3. Perform theA18 CPU post–repair adjustments and performance tests.
E8257D/67D, E8663D PSG Signal Generators Service Guide
Figure 3-23 for this procedure.
Cover" on page 258 and
Generator cover
(E8267D Only).
— W19 from A18J2
— W66 from A18P2 (E8267D only)
— W18 from A18J1
— W64 from A14J13 (E8267D only)
— W90 from A14J21 (E8267D only)
Motherboard.
"Inner Instrument Cover" on page
"Outer Instrument
260.
297