Yamaha MG16/6FX Service Manual page 33

2-9. Channel Equalizer Characteristics
In the state checked in 2-2 above, check the output level obtained at GROUP 1 OUT in the case of CH INPUT and ST CH
INPUT L and at GROUP 2 OUT in the case of ST CH INPUT R when LO, HI and MID of INPUT are moved respectively.
Its level of each frequency shall be within the range specified in the table 2.9.1 & 2.9.2 compared to the output level obtained
when the EQ gain control is center click position.
If it is without the range, search the frequency, within the range of +/-20%, of that the level is within the range of Table 2.9.1 & 2.9.2.
Table 2.9.1 CH1-8 [dB]
EQ Level control
MAX
HIGH
MIN
MAX
MIN
MID
MAX
MIN
MAX
LOW
MIN
Table 2.9.2 CH9-16 [dB]
EQ Level control
MAX
HIGH
MIN
MAX
HI-MID
MIN
MAX
LO-MID
MIN
MAX
LOW
MIN
2-10. GRAPHIC EQUALIZER Characteristics
In the state checked in 2-2 above, GEQ switch to ON and set the GEQ fader to MIN or MAX,then check the output level
obtained at ST OUT.
Its level of each frequency shall be within the range specified in the table 2.10.1 compared to the output level obtained when
the GEQ fader is center click position.
If it is without the range, search the frequency, within the range of +/-20%, of that the level is within the range of Table 2.10.1.
Table 2.10.1 [dB]
Applied frequency
MAX
Variation width
MIN
2-11. Crosstalk
Setting the Fader to the nominal position and each input channel ON switch to ON, and turning the PAN control shall be
-50dBu or (BAL control in the case of ST CH INPUT) counterclockwise fully, the level of the leakage to ST R OUT less
when the output level of ST OUT is +20dBu.
Also turning the PAN control clockwise fully, the level of the leakage to ST L OUT shall be -50dBu or less when the output
level of ST R OUT is +20dBu.
f control Applied frequency
––
10kHz
––
MAX 5kHz
MIN 250Hz
––
100Hz
––
Applied frequency Variation width
+12 +/-2
10kHz
-12 +/-2
+15 +/-2.5
3kHz
-15 +/-2.5
+15 +/-2.5
800Hz
-15 +/-2.5
+12 +/-2
100Hz
-12 +/-2
125 250 500
125Hz 250Hz 500Hz
Variation width
+12 +/-2
-12 +/-2
+15 +/-2.5
-15 +/-2.5
+15 +/-2.5
-15 +/-2.5
+12 +/-2
-12 +/-2
1k 2k 4k
1kHz 2kHz 4kHz
+12 +/-2
-12 +/-2
MG16/6FX
8k
8kHz
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