A26 Cpu Assembly; Removal - Agilent Technologies PSA Series Service Manual

A26 CPU Assembly

Use ESD precautions when performing this replacement procedure.
CAUTION
The CPU assembly consists of three separate boards: the A26 CPU
NOTE
(processor) board, the A26A1 DRAM board, and the A26A2 Flash board.
The Flash memory board contains data that is pertinent to your
particular instrument. If you are changing a faulty CPU board, you
must transfer the three smaller boards over to the new CPU board.
Refer to the
replacement procedure. After the boards are installed on the new
processor board, refer to the procedure in
on transferring data to the new processor.

Removal

1. Remove the instrument top brace. Refer to the
2. Remove the A7 Digital IF assembly. Refer to the
3. Remove the A6 SCSI board. Refer to the
4. Using the T-10 driver, remove the 14 screws (1) from the rear panel
5. Read the
6. Refer to
7. If you need to replace the battery, go to
Chapter 11
"A26A1 DRAM and A26A2 Flash Boards"
procedure.
Assemblies (Standard Instrument)"
procedure.
as shown in Figure 11-48.
on the rear dress panel before removing the CPU
Warning
assembly from the deck.
Figure 11-49. Use the handle (2) to slide the A26 assembly
(3) out of the deck by pulling towards the rear of the instrument.
page 387.
Assembly Replacement Procedures

A26 CPU Assembly

removal and
Chapter 12 for information
"Top Brace"
"Vertical Board
removal procedure.
"A6 SCSI Board"
"Battery Replacement" on
removal
removal
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