OTARI MX-55T-M - Splicing Block; Speed Mode Switch and Indicator; Pitch Control Knob

MX-55 Operation Manual
Controls and Indicators
[10J Splicing Block
[11 J Speed Mode switch
and Indicator
[12J Pitch Control knob
The built-in splicing block provides a convenient method of editing
tapes.
When this switch is set to the FIX position, the capstan motor
speed is controlled by the internal crystal oscillator, and the tape
speed is selected by the SPEED LOIHI button (Figure 2-2, (10]).
When this switch is set to the VARI position, the tape speed is
controlled by the Pitch Control knob.
When this switch is set to the EXT position, the tape speed is
controlled by the external speed reference signal connected to the
PARALLEL 1/0 connector on the rear panel. Set the Speed Mode
switch to this position when using a synchronizer or resolver to
control the MX-55. Refer to Section 5.2.4 for additional information
about controlling the tape speed using an external controller.
NOTE: The Tape Time display shows only tape time when the Speed
Mode switch is set to EXT.
When this switch is set to the VEM (Voice Edit Mode) position, and
the optional VEM PCB is installed , the tape is reproduced at two
times the currently selected speed, but the pitch of the signal
remains constant. Changing the setting of the Pitch Control knob
while in Voice Edit mo de, causes the tape speed to change, with an
accompanying pitch change.
When this switch is set to the VARI or VEM pOSition, the indicator
becomes illuminated. When this switch is set to the EXT position,
the indicator is only illuminated when the speed control signal is
being supplied. In the FIX position, the indicator is not illuminated .
When the Speed Mode switch is set to the VARI position, the Pitch
Control changes the tape speed in Record and Play modes.
The Pitch Control knob is velocity sensitive, so that turning the
knob a small amount quickly produces a large pitch change, while
turning the knob the same amount slowly produces a small pitch
change.
The tape speed is variable by ±20% of the selected speed in 0.01 %
steps. The amount of pitch change can be displayed on the Tape
Time display by pressing TIME·IPS·% button.
March 1989
2-3