Basic Operation
2-9
Level Calibration
Analog Input and Output levels should be set with care
to obtain the best possible performance from the 480L.
The diagram below illustrates the signal flow through
the mainframe. In addition, several programs are avail-
able in Bank 17 Test & Reference to help you optimize
the performance of your system.
Set Test Configuration
Use the Single Machine configuration:
1. Press CTRL, press PAGE, then press 1.
2. Move Slider 2 to select SINGLE.
3. Press CTRL or PROG to exit Control Mode and
enter Machine Operation Mode.
IMPORTANT
MUTE CONTROL ROOM MONITORS
BEFORE PROCEEDING.
WORD CLOCK
LEFT CH. DATA
RIGHT CH. DATA
Left MAIN
D/A Converter
Right MAIN
D/A Converter
Wet
Bus
Data
Left AUX
D/A Converter
Right AUX
D/A Converter
Analog Output Gain Stage
LEFT MAIN
RIGHT MAIN
LEFT AUX
RIGHT AUX
SDIF DIGITAL
AUDIO INTERFACE
SIGNAL
PROCESSING
Left Channel
A/D Converter
Right Channel
A/D Converter
48 kHz
44.1 kHz
Internal Sampling Frequncy
Word Clock Switch
INT.
EXT.
LEFT CH. ANALOG
LEFT CH. DIGITAL
RIGHT CH. ANALOG
RIGHT CH. DIGITAL
Input Selector Switch
Analog Input
Gain Stage
LEFT
RIGHT
SDIF DIGITAL AUDIO
WORD CLOCK
LEFT CH. DATA
RIGHT CH. DATA
Signal Flow through the 480L Mainframe
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