Studer SW V4.0 OnAir 1000, Инструкция по эксплуатации и обслуживанию

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OnAir 1000 Digital Mixing Console
4-14 Service
SW V4.0 Date printed: 24.10.03
Alignment: MIC GAIN Depending on the output level of the microphone used, the limiter thresh-
old is aligned with the MIC GAIN trimmer potentiometer (RA1). For the
internal standard electret TB mic (nominal output level –60 dBu), the MIC
INT/EXT jumper is set to the INT position, the GAIN jumper is set to the
LO position. Connect an AF voltmeter to the unbalanced TB OUT con-
nector (P5 on the PCB). Then a sine-wave signal (approx. 1 kHz with a
fixed level of –60 dBu is fed to the INT ELECTRET MIC connector (P6
on the PCB), and the MIC GAIN trimmer potentiometer is aligned to a
level just below the point where no more output level increase is meas-
ured.
If an other microphone is used, the appropriate input connector, jumper
settings and input signal level must be used.
OUTPUT LEVEL After the MIC GAIN alignment, the level of the balanced TB mic output –
available at the XLR connector OUT (P3), or at the AMP connector TB
OUT SYM (P9) on the PCB – is aligned with the OUTPUT LEVEL trim-
mer potentiometer (RA2) to the desired nominal level.
4.3.5 Insert
1.942.660.xx
The analog insert assembly needs to be sent to the factory for alignment.
Replacement assemblies come pre-aligned.
4.3.6 Monitoring
1.942.182.xx, 1.942.133.xx, 1.942.139.xx, 1.942.129.xx
Monitoring assemblies need to be sent to the factory for alignment.
Replacement assemblies come pre-aligned.