Crown Pro-700 Bandrecorder
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Model:
Pro-700
Datum:
Categorie:
Groep:
Omschrijving:
Recorder / Reproducer
Informatie
The purpose of the transport, or as it is sometimes called,
“tape deck,” is to mechanically position and move magnetic
tape over the heads.
Crown Pro-700 transports accomplish this with optimum ease
and simplicity, and axe designed for long trouble-free life.
Materials and design are keyed to the highest professional
requirements. A high-mass capstan drive system assures
rock-steady tape motion. Rugged, oversize reel motors
provide tape-handling capabilities seldom found at any
price. Tape can be reeled from one end to the other; and it
can immediately be brought to a soft and gentle stop. The
patented braking system never needs adjusting —there is
nothing to adjust, nothing to wear out. There are no brake
shoes, or other friction devices—no mechanical linkages or
gadgets in the braking system. Braking tension is determined
entirely be electrical factors. This same design philosophy
has been carried throughout the entire transport; a minimum
of moving parts, a maximum of dependability.
The belt-driven capstan is powered by a
hysteresis-synchronous drive motor. The capstan rotates
constantly so long as power is applied to the drive motor.
The drive motor also serves to power the forced-air
ventilating system of the machine by drawing cold air in
over the drive motor and expelling it out the ends of the
enclosed machine.
The two reel motors (torque motors) perform the duties of
take-up and pay-off tension, fast forward and rewind, and
braking. In the play mode, the take-up tension is controlled
by the AC voltage applied to the take-up motor, while
pay-off tension is controlled by an AC voltage applied to
the pay-off motor. In fast forward or rewind, the pulling
motor is powered with a full 117 VAC while the opposite
motor has 10 VDC applied for a slight holdback tension.
A large variety of record-reproduce electronics and heads
are available.
Handleidingen type:
Service-en gebruikershandleiding
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78
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11.85 Mbytes (12429441 Bytes)
Taal:
english
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Informatie
Introduction ... 1,2
Section 1 DESCRIPTION
1.1
General ...
3
1.2 Specifications
... 4, 5
1.3 Tape
Transport ...
6
1.4 Electronic
Assembly ...
6
1.5 Head
Assemblies ...
6
1.6 Accessory
Equipment ... 6
Section 2 INSTALLATION
2.1
Unpacking ...
7
2.2 Mounting and
Environment ... 8
2.3 Assembly
Interconnections ... 10
2.4 Connecting Signal Lines
... 10
2.5 Connecting
Power ... 10
Section 3 OPERATING INSTRUCTIONS
3.1 Operating Controls and
Indicators ... 11
3.2 Threading the
Tape ... 12
3.3 Applying
Power ... 12
3.4 Selecting Reel
Size ... 12
3.5 Selecting Tape
Speed ... 12
3.6 Transporting
Tape ... 12
3.7 Rapid Service
Guide ... 12,13
Section 4 ROUTINE TRANSPORT MAINTENANCE
4.1
Cleaning ... 15
4.2
Demagnetization ... 15
4.3
Heads ... 15
4.4
Lubrication ... 15,16
4.5 Reel
Motors ... 16
4.6 Wow and
Flutter ... 16
Section 5 TRANSPORT THEORY AND MAINTENANCE
5.1 Head
Alignment ... 17,18,19
5.2 Tape
Sensor ... 19
5.3 Control Switches (Pushbuttons)
... 20
5.4 Tape Lifter and Pressure Roller Solenoid and Pull-in
Circuitry ... 20, 21
5.5 Reel
Motors ... 21,
22
5.6 Electrical
Braking ... 23
5.7 Power
Supply ... 23
5.8 Speed
Shift ... 23,24
5.9
Timing ... 24
5.10 Factory
Service ... 25
Section 6 TRANSPORT SCHEMATICS, AND PARTS LIST
6.1 Schematic (Basic)
6.2 Schematic with Interconnections
6.3 Parts List
6.4 Mechanical Views, Parts Lists
Section 7 ELECTRONICS
Section 8 ACCESSORIES