OPTIMOD-AM DIGITAL
MAINTENANCE
4-9
Frequency
THD+N Typical
THD+N Maximum
50 Hz
0.015%
0.03%
100 Hz
0.015%
0.03%
400 Hz
0.015%
0.03%
1 kHz
0.015%
0.03%
2.5 kHz
0.015%
0.03%
5 kHz
0.015%
0.03%
7.5 kHz
0.015%
0.03%
9.5 kHz
0.015%
0.03%
G)
Repeat these measurements for Analog Output #2.
H)
Disconnect the oscillator and THD analyzer from the 9300.
5.
Test Digital Sample Rate Converter (Receiver).
A)
Verify 9300 software controls are set to their default settings. (Refer to page
4-6.)
B)
Be sure you are still in
B
YPASS
C)
Navigate to
S
ETUP
>
D
IG
I
N
C
ALIB
and
S
et the
I
NPUT
to
D
IGITAL
.
D)
Connect the digital source generator to the AES3 Digital Input XLR connector
of the 9300.
E)
Set the frequency of the digital source generator to 400 Hz and its output
level to 6 dB below full scale.
F)
Set the word length of the digital source generator to 24-bit. In turn, set the
generator to emit 32 kHz, 44.1 kHz, 48 kHz, 88.2 kHz, and 96 kHz sample
rates. Listen to the analog outputs of the 9300 and verify that the output
sounds clean and glitch-free regardless of the source sample rate.
G)
Leave the digital source generator connected to the 9300.
6.
Test Digital Sample Rate Converter (Transmitter).
A)
Connect an AES3 analyzer (like the Audio Precision System 2) to the 9300’s
AES3 digital output.
B)
Set the sample rate of the digital source generator to 48 kHz.
C)
On the 9300, navigate to
S
ETUP
>
D
IG
O
UT
C
ALIB
.
D)
Change the 9300’s
D
O
R
ATE
to 32 kHz, 44.1 kHz, 48 kHz, 88.2 kHz, and 96 kHz,
and verify that the frequencies measured at the 9300’s AES3 output follow
the values in the chart below within given tolerances:
Содержание OPTIMOD-AM 9300
Страница 1: ...Operating Manual OPTIMOD AM 9300 Digital Audio Processor Version 2 0 Software...
Страница 7: ...Operating Manual OPTIMOD AM 9300 Digital Audio Processor Version 2 0 Software...
Страница 178: ...3 46 OPERATION ORBAN MODEL 9300...
Страница 200: ......
Страница 221: ...OPTIMOD AM DIGITAL TECHNICAL DATA 6 21...
Страница 222: ...6 22 TECHNICAL DATA ORBAN MODEL 9300 CONTROL BOARD PARTS LOCATOR...
Страница 228: ...6 28 TECHNICAL DATA ORBAN MODEL 9300...
Страница 229: ...OPTIMOD AM DIGITAL TECHNICAL DATA 6 29 I O DSP BOARD LEFT AND RIGHT ANALOG INPUTS...
Страница 230: ...6 30 TECHNICAL DATA ORBAN MODEL 9300 I O DSP BOARD ANALOG OUTPUTS...
Страница 231: ...OPTIMOD AM DIGITAL TECHNICAL DATA 6 31...
Страница 238: ...6 38 TECHNICAL DATA ORBAN MODEL 9300 FRONT VIEW REAR VIEW FRONT PANEL PARTS LOCATOR DIAGRAM...
Страница 242: ...6 42 TECHNICAL DATA ORBAN MODEL 9300 NOTES...