A31 Motherboard (E8267D); Tools Required; Removal Procedure - Keysight Technologies E8257D Service Manual

Assembly Replacement

A31 Motherboard (E8267D)

A31 Motherboard (E8267D)

Tools Required

— T–10 driver
— 5/16" open–ended wrench
— needle–nose pliers

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 A31 Motherboard facing you and the
4. Remove the front panel. Refer to
5. Remove the assemblies that are inserted into the A31 Motherboard. Refer
6. Using the 5/16" open–ended wrench, disconnect the following RF cables:
7. Using the needle–nose pliers, disconnect the following flexible cables:
E8257D/67D, E8663D PSG Signal Generators Service Guide
Figure 3-54 for this procedure.
Cover" on page 258 and
RF deck on top.
to "A5 Sampler, A6 Frac–N, A7 Reference (Standard and Option
UNR/UNX/UNY), A8 Output, A45 Frac-N and A46 Offset" on page
YIG Driver" on page 281,
Modulation Generator" on page
Only)" on page 293, "A18 CPU" on page
Standard or with Option 015) (Serial Prefixes <US4722/MY4722)" on
page 289.
— W67 from Rear Panel (.25–3.2 GHz COH CARRIER)
— W39 from A29 20 GHz Doubler J4
— W76 from A12 Pulse Modulator Board
— W21 from A31J1043
— W10 from A31J1031
— W54 from A31J1032
— W47 from A31J1041
— W22 from A31J1042
— W60 from A31J1052
— W61 from A31J1053
"Inner Instrument Cover" on page
"Front Panel" on page
"A10 ALC" on page 284,
286, "A14 Baseband Generator (E8267D
298, and
"Outer Instrument
260.
262.
279, "A9
"A11 Pulse/Analog
"A13 I/Q MUX (E8267D
351