Справочник Пользователя для Sony BKPF-L752
2-3 (E)
BKPF-L752
2-4. Input/Output Gain Adjustment
2-4. Input/Output Gain Adjustment
The specification value described for this input/output gain
adjustment is set when the gain is 0 dB (during factory
adjustment is set when the gain is 0 dB (during factory
setting). If the customized gain is other than 0 dB, increase
or decrease the specification value proportionally to the
or decrease the specification value proportionally to the
difference of the gain.
Measuring equipment: Audio level meter
1.
Set the output of the audio signal generator to
+4.0 dBm, 1 kHz.
+4.0 dBm, 1 kHz.
CH1 adjustment
2.
Connect the generator to the CH1 input of AUIDO IN
connector of the audio A/D converter board (BKPF-
connector of the audio A/D converter board (BKPF-
L751).
3.
Connect the AES/EBU OUT1 connector of the audio
A/D converter board (BKPF-L751) to the AES/EBU
IN1 connector.
IN1 connector.
4.
Connect the audio level meter to the CH1 output of
AUDIO OUT connector.
AUDIO OUT connector.
5.
Adjust the CH1 output level on the audio level meter.
Adjustment point:
Adjustment point:
1RV101/DAC-38 (A-1)
Specification:
4.0
±
0.1 dBm (at 600
Z load)
CH2 adjustment
6.
Connect the generator to the CH2 input of AUDIO IN
connector of the audio A/D convertor board (BKPF-
L751).
L751).
7.
Connect the audio level meter to the CH2 output of
AUDIO OUT connector.
AUDIO OUT connector.
8.
Adjust the CH2 output level on the audio level meter.
Adjustment point:
Adjustment point:
1RV201/DAC-38 (A-2)
Specification:
4.0
±
0.1 dBm (at 600
Z load)
CH3 adjustment
9.
Connect the generator to the CH3 input of AUDIO IN
connector of the audio A/D converter board (BKPF-
L751).
L751).
10. Connect the AES/EBU OUT2 connector of the audio
A/D converter board (BKPF-L751) to the AES/EBU
IN2 connector.
11. Connect the audio level meter to the CH3 output of
AUDIO OUT connector.
12. Adjust the CH3 output level on the audio level meter.
Adjustment point:
1RV301/DAC-38 (A-2)
Specification:
4.0
±
0.1 dBm (at 600
Z load)
CH4 adjustment
13. Connect the generator to the CH4 input of AUDIO IN
connector of the audio A/D converter board (BKPF-
L751).
14. Connect the audio level meter to the CH4 output of
AUDIO OUT connector.
15. Adjust the CH4 output level on the audio level meter.
Adjustment point:
1RV401/DAC-38 (A-3)
Specification:
4.0
±
0.1 dBm (at 600
Z load)
16. After turning off the power, reset the switch (S3) on
the DAC-38 board to the customer settings.
n
0 dBm
0 dBm
= 0.775 V rms