Yamaha MG24/14fx, Service Manual

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MG24/14FX
MG32/14FX
3
SPECIFICATIONS
General Specifications
Where 0 dBu = 0.775 V and 0 dBV= 1 V
1
Rs = 150 ohms
Measured with 12.7 kHz, –6 dB/oct. low pass filter (equivalent to 20 kHz, –
∞
filter).
2
Turning PAN/BAL to left or right.
3
Shelving turnover/rolloff frequency: 3 dB before maximum cut or boost.
Frequency Characteristics (Master Output) 20 Hz–20 kHz +1 dB, –3 dB @+4 dBu, 600
Ω
(with gain control at minimum level)
Total Harmonic Distortion (Master Output)
0.1% (THD+N) @+14 dBu, 20 Hz–20 kHz, 600
Ω
(with gain control at maximum level)
Hum and Noise (20 Hz - 20 kHz)
1
Input GAIN = Maximum
Input PAD = OFF
Input sensitivity = –60 dBu
–128 dBu Equivalent input noise (CHs 1 to 24 (MG32/14FX)/CHs 1 to 16 (MG24/14FX))
–99 dBu Residual output noise (ST, MONO OUT, AUX, EFFECT, GROUP OUT)
–83 dBu (87 dB S/N) ST, MONO, GROUP Master fader at nominal level; all Ch assign switches off.
–78 dBu (82 dB S/N) AUX master control at nominal level; all channel mix controls at minimum level.
–64 dBu (68 dB S/N)
ST, GROUP Master fader and one Ch fader at nominal level.
(CHs 1 to 24 (MG32/14FX)/CHs 1 to 16 (MG24/14FX))
Maximum Voltage Gain
2
60 dB CH IN
→
CH INSERT OUT
84 dB CH IN
→
GROUP OUT/ST OUT (CH to ST)
94 dB CH IN
→
ST OUT (GROUP to ST)
70 dB CH IN
→
GROUP INSER OUT, ST INSERT OUT (CH to ST)
62.2 dB CH IN
→
REC OUT (CH to ST)
76 dB CH IN
→
AUX SEND (PRE)
86 dB CH IN
→
AUX SEND (POST)/EFF SEND
80 dB CH IN
→
ST SUB OUT (CH to ST)
58 dB ST CH IN
→
GROUP OUT/ST OUT (ST CH to ST)
47 dB ST CH IN
→
AUX SEND (PRE)
57 dB ST CH IN
→
AUX SEND (POST)/EFF SEND
16 dB RETURN
→
ST OUT
9 dB RETURN
→
AUX SEND
27.8 dB 2TR INPUT
→
ST OUT
Monaural/Stereo Input Gain Control 44 dB variable
Monaural High Pass Filter 80 Hz 12 dB/octave
Channel Input PAD 0 dB/26 dB
Crosstalk (1 kHz)
–70 dB between input channels
–70 dB between input/output channels (CH INPUT)
Monaural Input Channel Equalization:
Max. Variation
3
±
15 dB HIGH 10 kHz shelving
MID 0.25–5 kHz peaking
LOW 100 Hz shelving
Stereo Input Channel Equalization:
Max. Variation
3
±
15 dB HIGH 10 kHz shelving
HI-MID 3 kHz peaking
LO-MID 800 Hz peaking
LOW 100 Hz shelving
Internal Digital Effects
Effect 1: 16 programs, parameter control
Effect 2: 16 programs, parameter control
TAP DELAY Control, Foot Switch (TAP)
MONO Low Pass Filter 80 - 120 Hz 12 dB/octave
Monaural/Stereo Input Peak Indicator One red LED per channel. Comes on when post-EQ signal level r17 dBu.
Monaural/Stereo Input Signal Indicator One green LED per channel. Comes on when post-EQ signal level reaches –10 dBu.
Level Meters
Four 12-point LED meters [Stereo (L, R), PFL/AFL, GROUP (1 - 4)]
Peak point: red indicator
+5, +3, +1, and 0 points: yellow indicators
–1, –3, –5, –7, –10, –15, –20: green indicators
P48 VDC Power
(Balanced input) +48 V DC supply to balanced inputs. Can be switched ON/OFF in groups of eight channels.
(One switch for every eight channels.)
Included Accessory Power cord, Owner’s Manual
Option FC5 (Foot Switch)
Lamp XLR-3-31 type (12 V AC between pins 2 and 3; 5W max. )
Power Supply
USA and Canada: 120 V AC, 60 Hz
Korea: 220 V AC, 60 Hz
Others: 230 V AC, 50 Hz
Power Consumption MG32/14FX: 120 W, MG24/14FX: 100 W
Max. Dimensions (W
×
H
×
D) MG32/14FX: 1027
×
140
×
551 mm, MG24/14FX: 819
×
140
×
551 mm
Weight MG32/14FX: 22 kg, MG24/14FX: 18.5 kg
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