Tektronix TLA 704, Руководство по обслуживанию

Страница: 86 / 144

Removal and Installation Procedures
TLA 704 Color Portable Mainframe Service Manual
6–31
RAM SIMMs
You will need a screwdriver with a size T-15 Torx tip (Table 6–1, items 1 and 2,
page 6–6) to perform this procedure.
Use the following procedure to remove the RAM SIMMs:
1. Locate the SIMM boards in the locator diagram Internal parts, Figure 6–13
on page 6–29. Note that there are two SIMM boards, an upper and a lower.
2. Set the mainframe so the bottom is on the work surface and the left side
faces you.
3. Do the Left Side Cover removal procedure, page 6–16.
4. Remove the two screws securing the EMI shield to the chassis, and then lift
off the EMI shield.
5. Press outward on the clips holding each SIMM board to the controller board,
and then lift off the SIMM board.
Use the following procedure to install new SIMM boards:
1. Insert the new SIMM boards. Press down gently until the clips that hold the
SIMM boards to the controller board snap into place.
NOTE
. When upgrading RAM memory, make sure that both SIMM boards contain
SIMMS of the same size.
2. Reposition the EMI shield, and then insert the two screws that secure it to
the chassis.
3. Do the Left Side Cover installation procedure, page 6–17.
Backplane Board
You will need a screwdriver with a size T-15 Torx tip (Table 6–1, items 1 and 2,
page 6–6) to perform this procedure.
Use the following procedure to remove the backplane board:
1. Remove all modules installed in the portable mainframe.
2. Locate the backplane board in the locator diagram Internal parts, Fig-
ure 6–13 on page 6–29.
Removal
Installation
Removal