Phones Out L/R; Omni In 1~4; Ch In 1~16 - Yamaha DM1000 Service Manual

DM1000/MB1000/SP1000
e Residual noise (OMNI OUT 1~12)
Parameter Switch BUS OUT Off.
Permissible range
-86dBu or below
r OMNI OUT 1~12 level difference
The range of difference in the gain measured with
q and w is regulated as follows.
Permissible range
Within 1dB
t Crosstalk between odd channels and even channels
Parameter The measurement channel must be
assigned to BUS 2CH with an OUTPUT
PATCH.
Input frequency Output level (odd channels) Permitted range (even channels)
1kHz +22dBu
The even channels must be the same.
y Maximum output (OMNI OUT 1~12)
Input frequency Permissible range Permissible range (Distortion factor)
1kHz +24±0.5dBu

2-2. PHONES OUT L/R

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