2-6. Input Level Adjustment of the BKAM-101
2-7. Input Level Adjustment of the BKAM-102
2-6. Input Level Adjustment of the2-7. Input Level Adjustment of the
BKAM-101BKAM-102
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Proceed to the adjustment described below only if adjust-Proceed to the adjustment described below only if adjust-
ment of the AMS-100 has not been completed.ment of the AMS-100 has not been completed.
PreparationPreparation
. Make the connections. (See OConnection 1� in 2-1-3.). Make the connections. (See OConnection 2� in 2-1-3.)
. Before adjustment, warm up the unit for about 10. Before adjustment, warm up the unit for about 10
minutes.minutes.
. Select the slot where the BKAM-101 is installed, using. Select the slot where the BKAM-102 is installed, using
the SLOT A/B buttons, and select 1 for CH-L and 2 forthe SLOT A/B buttons, and select 1 for CH-L and 2 for
CH-2 on the AMS-100.CH-2 on the AMS-100.
ProceduresProcedures
1. Supply the following signals to the AMS-100 from the1. Set the following items of the 2-channel audio analyzer:
2-channel audio analyzer:1 kHz, _20.0 dB FS: Emphasis of the channel status
Frequency: 1 kHz(50/15 us) to OFF
Output level:+4.0 dBm (600 Z load, balanced)Sampling frequency: 48 kHz
2. Setting of the 2-channel audio analyzer (High imped-2. Check that the D102 (DIGITAL AUDIO IN lamp) is lit.
ance, unbalanced):3. Setting of the 2-channel audio analyzer (High impedance):
AUDIO OUT 1 signal:AUDIO OUT 1 signal:
Test point:Pin 19 of CN101/AL-42 boardTest point:Pin 19 of CN101/DAC-37 board
Adjustment point:1RV1 (B-2) /AL-42 board (CH1Adjustment point:1RV101 (B-3) /DAC-37 board
LEVEL)(LEVEL 1)
Specification:_10.0 ?0.1 dBs (347 ?3 mV)Specification:_10.0 ?0.1 dBs (347 ?3 mV)
347 ? 3 mV347 ? 3 mV
AUDIO OUT 2 signal:AUDIO OUT 2 signal:
Test point:Pin 35 of CN101/AL-42 boardTest point:Pin 35 of CN101/DAC-37 board
Adjustment point:1RV21 (A-2) /AL-42 board (CH2Adjustment point:1RV102 (A-3)/DAC-37 board
LEVEL)(LEVEL 2)
Specification:_10.0 ?0.1 dBs (347 ?3 mV)Specification:_10.0 ?0.1 dBs (347 ?3 mV)
347 ? 3 mV347 ? 3 mV
AL-42 boardDAC-37 board
CN101CN101
S2S22
RV101 RV102
RV1RV21
S101D102
S1S21
2-6 (E)AMS-100 |