A5000/A4000 Options - Yamaha A4000 Owner's Manual

A5000/A4000 Options

A5000/A4000 Options
You can enhance the capability of your A5000/A4000 by installing options. The A5000/A4000 supports
two options: (1) additional memory, and (2) the AIEB1 board (I/O expansion board).
Expansion Memory (SIMMs)
The A5000/A4000 stores all active data in main memory. To play a sample back, you must first load it into
main memory. And whenever you record a sample, you must record it into main memory.
Samples consume a great deal of memory. The A5000/A4000 comes standard with 4 megabytes (4MB) of
memory — but this is only sufficient to store about 48 seconds of high-quality monaural sound (at 44.1kHz
sampling frequency), or approximately 24 seconds of stereo sound.
You can increase this capacity by installing additional memory. The A5000/A4000 accepts expansion mem-
ory in the form of SIMMs (single in-line memory modules). Using SIMMs, you can install up to 128MB of
memory onto the A5000/A4000. SIMMs can be purchased from almost any computer-supply dealer.
Adding memory will allow you to record longer samples, and to work with more samples at the same time.
For information about how to install SIMMs, refer to the Appendix. (page 234)
Important Information about Purchase of Expansion SIMMs for the A5000/A4000
The A5000/A4000 does not necessarily support all commercially available SIMMs. Before pur-
chasing SIMMs, please consult your Yamaha dealer or an authorized Yamaha distributor (see
list at end of the Owner's Manual) for advice. Note that Yamaha cannot assume responsibility
for SIMM malfunctions.
• You need to use 72-pin SIMMs with access time of 70ns or less. The SIMM module size may be 4MB,
8MB, 16MB, or 32MB. The A5000/A4000 is designed for use with 32-bit (parity non-type) SIMMs, but
can also accept installation of 36-bit (parity-type) SIMMs.
• When purchasing SIMMs, make sure that the SIMM design does not utilize more than 18 memory
chips per module. (SIMMs comprised of more than 18 chips do not operate correctly on the A5000/
A4000.)
• SIMMs must be installed in pairs: you can install either two SIMMs or four SIMMs. Both modules in a
pair must have the same memory capacity.
• The A5000/A4000 ships with 4MB of sampling memory installed, and is capable of accessing up to
128MB. If you add one pair of 32MB SIMMs, for example, you increase the available sampling memory
to a total of (4 + 32 x 2 =) 68MB. If you install four 32MB SIMMs, however, the sampling memory size
becomes 128MB (and the original 4MB are effectively disabled).
• Yamaha recommends that you purchase SIMMs that conform to the JEDEC* standard. Please be
aware, however, that conformance to this standard does not constitute a guarantee that the SIMMs will
operate correctly on the A5000/A4000.
* JEDEC (Joint Electron Device Engineering Council) sets standards for terminal configurations within elec-
tronic devices.
The I/O Expansion Board (AIEB1 Board)
In its standard configuration, the A5000/A4000 supports analog I/O only. Although it stores all internal data
in digital form, it does not provide direct digital I/O connectors.
You can add digital I/O capacity by installing an AIEB1 board. The board offers two different digital con-
nector types: optical connectors, and coaxial connectors. As an added benefit, the board also includes three
stereo ASSIGNABLE OUTPUT pairs (six analog jacks), which operate independently of the standard STE-
REO OUT and ASSIGNABLE OUT jacks.
For information about how to install this board, refer to the Appendix. (page 237)
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A5000/A4000
SIMM Type and SIMM Configuration