15
AUDIOGRAM6
2-6 Gain
Check that the output level of each output terminal is within the range shown in the [Table 2-6.1] and [Table 2-6.2].
* Check that the difference in the level between channels is 2.0 dB or less.
Table 2-6.1 CH INPUT (CH1, CH2) [dBu]
INPUT
Input
level
GAIN
control
STEREO OUT L
STEREO OUT R
q
XLR
1
-82.0
Maximum
-2.0 ± 2.0
–
w
2
-38.0
Minimum
-2.0 ± 2.0
-2.0 ± 2.0
q
’
PHONE
1 (L)
-82.0
Maximum
-2.0 ± 2.0
*1
–
w
’
2 (R)
–
-2.0 ± 2.0
*1
e
PHONE
(UNBAL)
1
-66.0
Maximum
-2.0 ± 2.0
*2
–
r
2
-22.0
Minimum
-2.0 ± 2.0
*2
–
*1 Set the MONO/STEREO switch to ON (STEREO).
*2 Set the MIC/INST switch to ON (INST).
Table 2-6.2 ST CH INPUT (CH3/4, CH5/6) [dBu]
INPUT
Input
level
GAIN
control
STEREO OUT L
STEREO OUT R
PHONES L
PHONES R
t
PHONE
3 L/MONO
5 L/MONO
-56.0
Maximum
-2.0 ± 2.0
–
-14.8 ± 2.0
–
y
3 L/MONO
5 L/MONO
-12.0
Minimum
-2.0 ± 2.0
-2.0 ± 2.0
-14.8 ± 2.0
-14.8 ± 2.0
u
4 R, 6 R
-56.0
Maximum
–
-2.0 ± 2.0
–
-14.8 ± 2.0
2-7 Frequency
characteristics
In the signal path of
q
to
u
in the [Table 2-6.1] and [Table 2-6.2], check that the output level of each output terminal is within the
range of +1.0/-3.0 dB compared with that of 1 kHz when the signal frequency is set to 20 Hz and 20 kHz.
(
GAIN control: Minimum
)
* Check that the frequency characteristics is within the range of +1.0/-4.5 dB when the signal frequency is set to 20 Hz and 20
kHz and the GAIN control is at maximum.
* In the signal path of
y
, check only the STEREO OUT L, R.
2-8 Crosstalk
Input signal from the CH1 (L) and check that the leakage level to the STEREO OUT R is -56.0 dBu or less when the output level
of the STEREO OUT L is +14.0 dBu.
Input signal from the CH2 (R) and check that the leakage level to the STEREO OUT L is -56.0 dBu or less when the output level
of the STEREO OUT R is +14.0 dBu.
* Set the MONO/STEREO switch to ON (STEREO).
* Set the CH level controls of the channels which are not measured to minimum.
2-9 CHANNEL
PEAK
indicator
Check that the CHANNEL PEAK LED lights up when a signal within the range shown in the [Table 2-9.1] is fed to the input.
Table 2-9.1 [dBu]
INPUT
Input level
1
2
-43.0 ± 2.0
3 L/MONO
5 L/MONO
-17.0 ± 2.0
2-10 MASTER
PEAK/SIGNAL
indicator
Check that the MASTER PEAK/SIGNAL LED lights up when a signal within the range shown in the [Table 2-10.1] is fed to the
input.
Table 2-10.1 [dBu]
INPUT
Input level
PEAK
SIGNAL
1
-60.0 ± 2.0
-80.0 ± 2.0
