1-15
SRW-5000/5500
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Cassette classification sensors
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These sensors detect the three cassette type detection
tabs of a cassette.
These sensors are used to discriminate whether a
cassette can be used in this unit.
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L cassette REC inhibit sensor
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This sensor (switch) detects the condition of a REC
inhibit plug for the MPEG IMX/Betacam SX large
cassette.
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Reel S position sensor
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Reel L position sensor
These sensors detect whether the reel table moves to
the correct position according to the size of the
inserted cassette.
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S cassette REC inhibit sensor
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This sensor (switch) detects the condition of a REC
inhibit plug for the small cassette.
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S tension regulator arm sensor
This sensor detects the position of an S tension
regulator arm. During recording and playback, the
output signal of this sensor enters the S reel motor
servo circuit, and controls the reel torque to keep a
constant S tape tension.
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Tape end sensor
This sensor detects the end of the tape that runs in the
forward direction.
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Cassette-down (2) sensor
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Cassette-down (1) sensor
These sensors detect the movement (position) of a
cassette compartment by the combination of the
detection state of the two sensors and a cassette-in
sensor.
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Cassette-in sensor (R)
This sensor detects whether a cassette is being insert-
ed.
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Cassette size sensor
This sensor detects whether the inserted cassette is L
size or S size.
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Cassette-in sensor (L)
This sensor detects whether a cassette is being inserted.
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: Also refer to “1-10. System of Cassettes”.
1
Threading motor FG sensor
This sensor detects the rotation speed of the threading
motor. The output signal of this sensor enters the
threading motor servo circuit, and controls the thread-
ing/unthreading speed to protect the tape during
threading and unthreading operation.
2
Unthreading-end sensor
3
Threading-end sensor
These sensors detect whether the threading ring
reaches the threading-end or unthreading-end position.
4
T tension regulator arm sensor
This sensor detects the position of a T tension regula-
tor arm. During recording and playback, the output
signal of this sensor enters the T reel motor servo
circuit, and controls the reel torque to keep a constant
T tape tension.
5
Condensation sensor
This sensor detects whether the dew condensation
occurs in the unit.
6
Tape top sensor
This sensor detects the beginning of the tape, and in
addition detects the end of the tape that runs in the
reverse direction.
7
Reel hub diameter sensor
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This sensor detects the reel hub diameter detection tab
of a cassette.
The reel hub with two types of diameters (thin and
thick) is available according to the length of a tape
stored in a cassette. This sensor is used to discriminate
the diameter. The output signal of this sensor enters
the servo circuit of take-up and supply reel motors, and
controls the reel rotation speed and torque during tape
transport.
8
Metal/oxide tape sensor
Not used.
9
HDCAM SR cassette detection sensor
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When the cassette classification sensor detected the
HDCAM SR or MPEG IMX cassette, this sensor is
used to discriminate whether it is the HDCAM SR
cassette.