Dimm64Mb Memory Module Replacement (For Serial Prefix Jp1Kh, Jp2Kh, And My432); Procedure; A1/A2(Opt.001)/A3/A4 Board Removal; Tools Required - Agilent Technologies E4991A Service Manual

Replacement Procedure
DIMM64MB Memory Module Replacement (for serial prefix JP1KH, JP2KH,
and MY432)
DIMM64MB Memory Module Replacement (for serial prefix
JP1KH, JP2KH, and MY432)
There are two DIMM64MB memory module on the A20 Digital Motherboard.

Procedure

Step 1. Remove the outer cover as described in "Outer Cover Removal".
Step 2. Remove the power supply as described in "A50 Power Supply Assembly Removal (for
serial prefix JP1KH, JP2KH, and MY432)".
Step 3. There are three DIMM sockets on the A20. Two DIMM memory modules are installed at
the socket U12 and U13.
Step 4. Cut the cable tie which ties DIMM memory.
Step 5. Unlatch the two clips and remove the DIMM memory.
Step 6. To replace the DIMM memory, reverse the above procedure. Install the DIMM memory in
the socket and latch the clips. Tie the DIMM memory and the socket using the cable tie.

A1/A2(Opt.001)/A3/A4 Board Removal

Tools Required

•
•
•
Procedure
Step 1. Remove the outer cover as described in "Outer Cover Removal."
Step 2. Remove the front frame as described in "Front Panel Removal"
Step 3. Disconnect the semi-rigid cables connected to the board assembly.
Step 4. Remove the two screws fastening the extractor to the chassis.
NOTE Remove the two nuts (item 1 in Figure 6-8 on page 247) fastening the BNC connector on
the rear panel when the A1 is removed.
Remove the two screws fastening the front frame to the bracket connect (item 3 in Figure
6-5 on page 242) when the A4 is removed.
296
Pozidriv screwdriver, pt size #1 (small) and #2 (medium)
Open-end wrench, 5/16-inch
Open-end torque wrench, 5/16-inch (set to 10 in-lb) (for reconnecting SMA connector)
Chapter 7