Yamaha AW2400, Руководство по обслуживанию

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65
AW2400
2-2-4. INPUT 4 (BAL XLR)
Parameters: Measure with INPUT 4
→
MONITOR R.
Set the MONITOR VR to MAX.
Measurement items and specified values are the same as
INPUT 1.
2-2-5.INPUT 5 (BAL XLR)
Parameters: Measure with INPUT 5
→
OMNI OUT 1.
q
LINE Gain
w
LINE Maximum Output
e
LINE Distortion
r
LINE Frequency Characteristics
t
LINE Noise Level
y
MIC Gain
Parameters: Set the INPUT GAIN VR to MAX [MIC].
u
MIC Distortion
Parameters: Set the INPUT GAIN VR to MAX [MIC].
i
MIC Noise Level
Parameters: Set the INPUT GAIN VR to MAX [MIC].
2-2-6. INPUT 6 (BAL XLR)
Parameters: Measure with INPUT 6
→
OMNI OUT 2.
Measurement items and specified values are the same as
INPUT 5.
2-2-7. INPUT 7 (BAL XLR)
Parameters: Measure with INPUT 7
→
OMNI OUT 3.
Measurement items and specified values are the same as
INPUT 5.
Input frequency Input level Specified output level Permitted factor
1 kHz +4 dBu +0 dBu 0
±
2 dBu
Input frequency Specified output level Permitted range (distortion factor)
1 kHz +20 dBu 1 % or below
Input frequency Specified output level Permitted range (distortion factor)
1 kHz +4 dBu 0.05 % or below
Input frequency Input level Specified output level (Reference value of 1kHz)
20 Hz +4 dBu –3~+1 dB
20 kHz +4 dBu –3~+1 dB
Permitted range
–84 dBu or below
Input frequency Input level Specified output level Permitted range
1 kHz –46 dBu 0 dBu 0
±
3 dBu
Input frequency Input level Permitted range (distortion ratio)
1 kHz –46 dBu 0.2 % or below
Permitted range
–60 dBu or below
2-2-8. INPUT 8(BAL XLR)
Parameters: Measure with INPUT 8
→
OMNI OUT 4.
Measurement items and specified values are the same as
INPUT 5.
2-2-9.PHONES
Parameters: Measure with INPUT 3
→
PHONES L.
Measure with INPUT 4
→
PHONES R.
Set the PHONES VR to MAX.
q
Gain, Distortion
w
Maximum Output
e
Distortion Factor
r
Frequency Characteristics
t
Residual Noise Level
Parameters: Set the PHONES VR to MIN
2-2-10. MONITOR OUT Residual Noise
Parameters: Measure at MONITOR OUT L/R.
Set the MONITOR VR to MIN.
3. Normal Mode Inspection
3-1. DIGITAL IN (COAXIAL)
(1) Operation should be normal to external DIGITAL signal
(Fs: 44.1kHz –10%,+6%).
(2) Operation should be normal to external DIGITAL signal
(Fs: 48kHz –10%,+6%).
3-2. DIGITAL OUT (COAXIAL)
DIGITAL AUDIO signal should be sent properly.
Input frequency Input level Specified output level Permitted range
1 kHz –2 dBu +1 dBu +1
±
3 dBu
Input frequency Specified output level Permitted range (distortion factor)
1 kHz +7 dBu 5 % or below
Input frequency Input level Permitted range (distortion factor)
1 kHz –2 dBu 0.1 % or below
Input frequency Input level Permitted range (Reference value of 1kHz)
20 Hz –2 dBu –3~+1 dB
20 kHz –2 dBu –3~+1 dB
Permitted range
–105 dBu or below
Permitted range
–100 dBu or below