Yamaha DM 1000, Service Manual

Page: 104 / 307

DM1000/MB1000/SP1000
104
e
Residual noise (OMNI OUT 1~12)
Parameter Switch BUS OUT Off.
r
OMNI OUT 1~12 level difference
The range of difference in the gain measured with
q
and
w
is regulated as follows.
t
Crosstalk between odd channels and even channels
Parameter The measurement channel must be
assigned to BUS 2CH with an OUTPUT
PATCH.
The even channels must be the same.
y
Maximum output (OMNI OUT 1~12)
2-2. PHONES OUT L/R
Parameters Must be input from Channel 1.
PHONES LEVEL MAX.
q
Gain (both L/R)
w
f characteristic (both L/R)
Parameter The permitted range uses 1 kHz as
reference.
e
Residual noise (both L/R)
Parameter PHONES LEVEL MIN.
r
L/R level difference
The range of difference in the gain measured with
q
is regulated as follows.
t
Maximum output (both L/R)
Parameter -12 dB must be output from the internal
oscillator.
Permissible range
-86dBu or below
Permissible range
Within 1dB
Input frequency Output level (odd channels) Permitted range (even channels)
1kHz +22dBu -58dBu or below
Input frequency Permissible range Permissible range (Distortion factor)
1kHz +24
±
0.5dBu 0.01% or below
Input frequency Input level Regulated output level Permissible range
1kHz +4dBu -12.8dBu -12.8
±
2dBu
Input frequency Input level Permissible range
20Hz +4dBu -3~0.5dB
40kHz +4dBu -3~0.5dB
y
Crosstalk between left and right
Parameter PAN L swung to cut off.
The right side must be the same.
2-3. OMNI IN 1~4
Parameter Inspect with OMNI OUT 1.
q
Gain (all of 1~4)
w
f characteristic (all of 1~4)
Parameter The permitted range uses 1 kHz as
reference.
e
Distortion ratio (all of 1~4)
r
Residual noise (all of 1-4)
Parameter Short the OMNI IN being measured
with 150
Ω
.
t
1~4 level difference
The range of difference in the gain measured with
q
is regulated as follows.
y
Crosstalk between odd channels and even channels
Parameters Input a signal on the odd side channels.
Short the even side channels with 150
Ω
.
The even channels must be the same.
2-4. CH IN 1~16
Parameter Inspect with OMNI OUT 1.
A. GAIN MAX, PAD OFF
q
Gain (CH 1~16)
w
f characteristic (CH 1~16)
Parameter The permitted range uses 1 kHz as
reference.
Permissible range
-110dBu or below
Permissible range
Within 1dB
Input frequency Permissible range Permissible range (Distortion factor)
1kHz -4.8
±
0.5dBu 0.04% or below
Input frequency Output level (L) Permitted range (R)
1kHz -10dBu -75dBu or below
Input frequency Input level Regulated output level Permissible range
1kHz +4dBu +4dBu +4
±
2dBu
Input frequency Input level Permissible range
20Hz +4dBu -1.5~0.5dB
40kHz +4dBu -1.5~0.5dB
Input frequency Output level Permissible range
1kHz +22dBu 0.01% or below
Permissible range
-82dBu or below
Permissible range
Within 1dB
Input frequency Output level (odd channels) Permitted range (even channels)
1kHz +22dBu -58dBu or below
Input frequency Input level Regulated output level Permissible range
1kHz -60dBu +4dBu +4
±
2dBu
Input frequency Input level Permissible range
20Hz -60dBu -1.5~0.5dB
40kHz -60dBu -1.5~0.5dB