4-2
888-2473-001
2/25/03
WARNING: Disconnect primary power prior to servicing.
Section 4 Theory of Operation
ATLAS Series™
4.1.1
Active Logic Symbols
Each logic signal has an active and inactive state and a unique name within the
system. To differentiate between active high or active low logic states on the
schematics, a forward slash (/) is placed in front of an active LOW signal name such
as /RF_MUTE. This means that if this logic line is pulled low, the transmitter RF
will be muted. By the same logic, the signal RF_MUTE_LED (an active high signal
with no forward slash) will turn on the RF mute LED when it goes high.
In some cases, a logic signal may act as a toggle with both states active, as with the
signal /ON_OFF, where LOW = ON and a HIGH = OFF. If this signal is inverted it
would be ON_/OFF.
4.2
Block Diagram Descriptions
For a basic transmitter overview and block diagram descriptions refer to Section 1,
Introduction. There is an overall transmitter block diagram at the front of the
schematic package that came with the transmitter. Also, as part of our standard
practice, the first page of a pc board schematic is also a block diagram of that board.
Table 4-1 gives the basic Atlas model numbers and configurations as well as the
drawing number for the Block Diagram of each model.
Table 4-1 Atlas Series™ Transmitter Models
Tx
Models
# of
Cabinets
# of PA
Modules
# of Power
Supplies
Output
Power
AC
Phases
Block
Diagram #
DVL 400
1
1
1
400W
1
843-5550-195
DVL 800
1
2
1
800W
1
843-5550-196
DVL 1100
1
3
2
1.1kW
1
843-5550-197
DVL 1500
1
4
2
1.5kW
3
843-5550-198
DVL 2200
1
6
3
2.2kW
3
843-5550-199
DVL 3000
1
8
4
3.0kW
3
843-5550-117
DVL 4300
2
12 (6 per cabinet)
3 per cabinet
4.3kW
3
843-5550-211
DVL 5700
2
16 (8 per cabinet)
4 per cabinet
5.7kW
3
843-5550-212
NOTE: All power levels given in Average power.
Summary of Contents for Atlas DVL400
Page 4: ...888 2473 001 WARNING Disconnect primary power prior to servicing MRH 2...
Page 6: ......
Page 8: ......
Page 11: ......
Page 12: ......
