Kurzweil K250 - Page 9

1.3.5 - Media Section
The Media section lets you program, store and recall your own
set of keyboard setups, instruments and .sequences.
LIST - This key allows you to run through, in any order, every
keyboard setup stored
in the Kurzweil 250's memory. You can
reprogram this
list to meet you own performance needs. You
can also
list sequences using this switch.
S TO RAG E - The Storage READ switch is used to prepare the
instrument to use a cartridge.
In future versions of the in-
strument, the
STORAGE switches will be used with external
media options.
1.3.6 - Back Panel
The back panel contains all the input/output connections for the
Kurzweil
250.
COMPUTER - This is the parallel computer port for attaching a
personal computer
to the Kurzweil 250.
TRIGGER
IN - The Trigger In is a TTL-compatible input used for
starting a sequence from
an external device. The sequence
triggers
on the positive edge of the supplied pulse. Minimum
pulse width
is 1 microsecond. The input impedance is greater
than
10k ohms. The trigger level is 2 volts. This I/O port takes
a 1/4 inch phone jack.
CLICK OUT - The Click Out is a TTL-level output pulse. When
enabled from the Front Panel, a positive pulse appears at this
output.
Its repetition rate is the selected sequencer tempo.
Driving source
is a low power TTL gate through a 51 ohm resis-
tor. This
I/O port takes a 1/4 inch phone jack.
SYNC IN - The Sync In is a TTL-compatible input used to drive
the Kurzweil
250 from another instrument. The other instru-
ment
is to provIde a square wave at X12 to X96 the tempo. The
input impedance
is greater than 10K ohms. The trigger level is
2 volts and this I/O port takes a 1/4 inch phone jack.
Kurzwell 250 Service Manual, Chapter 1
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