A2 Display; Tools Required; Removal Procedure; Replacement Procedure - Keysight Technologies E8257D Service Manual

Assembly Replacement

A2 Display

A2 Display

Tools Required

— T–10 driver

Removal Procedure

Refer to
< US/MY5XXX3XXX for this procedure.
Refer to
≥ US/MY5XXX3XXX for this procedure.
1. Disconnect the power cord.
2. Remove the front panel. Refer to
3. For serial number prefix < US/MY5XXX3XXX, disconnect the A2DS1W1
4. Disconnect the W8 ribbon cable from the A3 Power Switch by lifting the
5. Using the T–10 driver, remove the four screws (12) from the A3 Power
6. Remove the A3 Power Switch.
7. Using the T–10 driver, remove the ten screws (11) that secure the RFI
8. Remove the metal shielding.
9. Using the T–10 driver, remove the four screws (9) that secure the A2
10.Remove the A2 Display.

Replacement Procedure

1. For instruments with serial number prefix < US/MY5XXX3XXX, reverse the
2. Torque all T–10 screws to 9 in–lbs.
E8257D/67D, E8663D PSG Signal Generators Service Guide
Figure 3-7 for instruments with serial number prefix
Figure 3-8 for instruments with serial number prefix
cable from the A4 Inverter and discard/recycle the A4 Inverter (i.e., The
replacement A2 Display does not need the old A4 Inverter).
For serial number prefix ≥ US/MY5XXX3XXX, disconnect the A2W1 cable
from the A2 Display.
white tabs on the connector.
Switch.
shielding (10) to the front panel.
Display to the front panel.
order of the removal procedure, except now the A2W1 cable is connected
straight to the A31 Motherboard P12 since the A4 is now integrated into
the A2 Display.
For instruments with serial number prefix ≥ US/MY5XXX3XXX, reverse the
order of the removal procedure.
"Front Panel" on page 262.
269