Appendices
243
2–B2. Installing a DRAM SIMM
A maximum of two memory boards can be installed
simultaneously. If you wish to use two 32 Mbyte
DRAM SIMM modules, you must first remove the fac-
tory-installed 16 Mbyte DRAM SIMM as described
below in “Removing a DRAM SIMM.”
Be sure that the AC power cable remains disconnected
until you have completed all steps of removing the
cover, installing the option board/memory, and re-
attaching the cover.
1 Make sure that cover “B” has been removed. (☞“1. Prep-
arations for installation,” “1–B. Removing cover “B” for
the EXB-PCM or DRAM SIMM.”)
2 Have the DRAM SIMM at hand.
3 Verify the location of the slot into which you wish to
install the DRAM SIMM. With the rear panel of the TRI-
TON facing toward you, the front two rows are the
DRAM SIMM slots.
4 In the slot closest to you, there is a factory-installed 16
Mbyte DRAM SIMM. If you are installing only one mod-
ule, install it in the remaining slot. If you are installing
two DRAM SIMM modules, you will need to remove the
factory-installed DRAM SIMM as explained in “Remov-
ing a DRAM SIMM” so that both slots are available.
5 The notched side of the DRAM SIMM is PIN 1. Install the
DRAM SIMM with its PIN 1 side aligned with the PIN 1
mark ( ) of the slot.
The DRAM SIMM slots and the EXB-PCM slots are
shaped identically. Be careful not to install a board in
the wrong slot.
6 At a slant, press the DRAM SIMM firmly all the way into
the slot, and raise it to the vertical position until the
catches of the slot click into the locking holes of the
DRAM SIMM. When doing so, pressing the catches of the
slot apart to the left and right will help the board go in
smoothly.
7 Reversing the procedure by which you removed cover
“B,” re-attach the cover.
8 When all steps have been completed, turn on the power
and make sure that the DRAM SIMM has been installed
correctly. (
☞“Checking after installation”)
Removing a DRAM SIMM
Spread the catches of the slot apart to the left and right, and
(after removing the stoppers from the catches) tilt the
DRAM SIMM and pull it out.
When you spread the catches of the slot apart, the
DRAM SIMM may pop out vigorously and fall into an
opening (inside the instrument). Please be careful.
EXB-PCM
Slot2
EXB-PCM
Slot1
SIMM
Slot2
SIMM
Slot1
DRAM SIMM
slots
Catches
Rear panel
Factory-installed DRAM SIMM
EXB-PCM
Slot2
EXB-PCM
Slot1
SIMM
Slot2
SIMM
Slot1
1PIN
72PIN
Rear panel
Catches
Rear of the DRAM SIMM
Locking
hole
Locking
hole
Notch
Rear side of DRAM SIMM
Rear side of DRAM SIMM
Rear side of DRAM SIMM
Rear panel
Catch
Catch
Press in at a slant
Raise to vertical
Rear side of DRAM SIMM
Rear panel
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