3-44
Section 3 — Functional Description
Control Panel Description
The Model 4000 has three Control Panels available. The smaller size of the Model
4000-2A (24 inputs) and 4000-2B (16 inputs) panel is achieved through greater use
of shared subpanels that are delegated to the M/Es. The Model 4000-3 is more
appropriate for live operation by having independent panel functions, separate
Key buses, and more inputs available.
Control Panel Components
The following figures show the major Control Panel components and rear panel
connections for the Control Panel.
The Control Panels consist of metal tubs with hinged top plates that
contain knobs and switch assemblies. Gas shock absorbers on the lower
tubs limit the speed of opening and closing the tubs; preventing the lid
from closing too fast and slamming against the tub rim. Circuit modules
and other components are located in the Control Panel tubs.
Rear panel connections contain power connections for either 110/220 VAC
(auto-ranging).
NOTE:
Power supplies are discussed later in this section.
Model 4000-2A/B Control Panels
Control Panel components include the following:
■
Control panel CPU module: handles communications with the frame, floppy
disk and flat display, and responds to PuP communications.
■
One power supply: pr5Vdc and +14Vdc power to the Control Panel
tub and top plate assemblies. A redundant Power Supply option is available
for the Control Panel. Power supplies are hidden under a cover inside the tub,
which protects the operator from hazardous voltage. Power ON/OFF and fuse
access are accessible via a cutout in the power supply cover.
■
Standard system has AC source power input with EMI filter, replaceable fuse
and power switch: provides power to the internal power supplies. Optional
redundant power supply has duplicate AC source power input, filter, fuse,
and switch.
■
Rear Panel I/O Connector Assembly: contains the external connectors for the
frame, status terminal and pointing device, and also an internal ribbon cable
interconnect for the CPU module. Two LEDs show power status (+5Vdc and
+14Vdc).
■
Gas Shock: provides lift mechanism for the Control Panel lid.
Summary of Contents for Grass Valley 4000
Page 3: ...iii Tektronix Grass Valley Products P O Box 1114 Grass Valley CA 95945 916 478 3800 ...
Page 4: ...iv Tektronix Grass Valley Products P O Box 1114 Grass Valley CA 95945 916 478 3800 ...
Page 34: ...1 20 Section 1 System Overview ...
Page 138: ...2 104 Section 2 Installation ...
Page 196: ...3 58 Section 3 Functional Description ...
Page 286: ...Index 6 Index ...