Yamaha 01V96, Service Manual

Page: 79 / 227

79
01V96
B. GAIN MIN, PAD ON
q
Gain (CH1~12)
w
Distortion ratio (CH1~12)
e
Noise level (CH1~12)
Parameter Short the CH IN being measured with
150
Ω
.
r
INSERT OUT Gain (CH1~12)
t
INSERT IN Gain (CH1~12)
Parameter Input the signals to the INSERT IN being
measured.
y
Odd channel/even channel crosstalk
Parameters Input the signals to the odd channels side.
Short the even channel side with 150
Ω
.
The even channels must be the same too.
C. Phantoms (CH 1~12)
Short XLR Pin 2 and Pin 3, connect a 10 k
Ω
load
between Pin 2-1, then switch the Phantom switch
On. The voltage is regulated to be no more than the
following.
Check that when the Phantom switch is switched
Off, the discharge starts quickly.
2-8. CH IN 13~16 (PHONE)
Parameter Inspect with STEREO OUT L (XLR).
A. GAIN MAX
q
Gain (CH13~16)
e
Distortion ratio (both L/R)
r
Residual noise (both L/R)
Parameter Short 2TR IN ANALOG with 150
Ω
.
t
L/R level difference
The range for the difference in the gain measured
with
q
is regulated as follows.
y
Crosstalk between left and right
Parameter Input the signals to the left side.
Short the right side with 150
Ω
.
The right side must be the same.
2-7. CH IN 1~12 (XLR)
Parameter Inspect with STEREO OUT L (XLR).
A. GAIN MAX, PAD OFF
q
Gain (CH1~12)
w
f characteristic (CH1~12)
Parameter The permitted range uses 1 kHz as
the reference.
e
Distortion ratio (CH1~12)
r
Noise level (CH1~12)
Parameter Short the CH IN being measured with
150
Ω
.
However, if the permitted range above is not met, EIN
Measurement value (Gain at 1 kHz) must be -128
or more.
t
Level difference (CH 1~12)
The range for the difference in the gain measured
with
q
is regulated as follows.
Permitted range
-97dBu or below
Permitted range
Within 1dB
Input frequency Output level (L) Permitted range (R)
1kHz +22dBu -58dBu or below
Input frequency Output level Permitted range
1kHz +22dBu 0.003% or below
Input frequency Input level Regulated output level Permitted range
1kHz -60dBu +4dBu +4
±
2dBu
Input frequency Input level Permitted range
20Hz -60dBu -1.5~0.5dB
40kHz -60dBu -1.5~0.5dB
Input frequency Output level Permitted range
1kHz +22dBu 0.02% or below
Permitted range
-64dBu or below
Permitted range
Within 2dB
Input frequency Input level Regulated output level Permitted range
1kHz +4dBu +4dBu +4
±
2dBu
Input frequency Output level Permitted range
1kHz +22dBu 0.01% or below
Permitted range
-82dBu or below
Input frequency Input level Regulated output level Permitted range
1kHz +4dBu -2dBu -2
±
1.5dBu
Input frequency Input level Regulated output level Permitted range
1kHz -2dBu +4dBu +4
±
1.5dBu
Input frequency Output level (odd channels) Permitted range (even channels)
1kHz +22dBu -58dBu or below
Permitted range
DC 31~37V
Input frequency Input level Regulated output level Permitted range
1kHz -26dBu +4dBu +4
±
2dBu