Yamaha EMX 5000-12, Service Manual

Page: 39 / 124

39
EMX5000-12/20
INSPECTIONS
A. INSPECTIONS OF MIXER
1
PREPARATIONS
• Unless otherwise specified, the signal to be applied should be 1kHz, The sine wave and the signal source impedance should
be 150 ohm. Also, the load resistance at each output terminal should be of the following values.
INSERT OUT, REC OUT 10k
Ω
PHONES 40 (3W or more)
LAMP 30 (20W or more)
Other output terminals 600
Ω
• Unless otherwise specified, set the controls as follows.
1-1 CH INPUT (1-8: EMX5000-12/1-16: EMX5000-20)
26dB switch OFF
GAIN control MINIMUM
HPF switch OFF
EQ(HIGH, MID, LOW) level control CENTER
EQ MID FREQ control MINIMUM
AUX 1,2 level control MAXIMUM
AUX 1,2 POST switch OFF
EFFECT 1,2 level control MAXIMUM
PAN control CENTER
ON switch ON only during measurement, OFF at all other times.
PFL switch OFF
fader MAXIMUM
1-2 ST CH INPUT (9-12: EMX5000-12/17-20:EMX5000-20)
GAIN control MINIMUM
EQ(HIGH, MID, LOW) level control CENTER
AUX 1,2 level control MAXIMUM
AUX 1,2 POST switch OFF
EFFECT 1,2 level control MAXIMUM
BAL control CENTER
ON switch OFF
PFL switch OFF
fader MAXIMUM
1-3 DIGITAL EFFECT (1,2)
PROGRSM select switch 16
PARAMETER control MINIMUM
DIGITAL EFFECT ON switch OFF
TAP switch (EFFECT 2) OFF
EFFECT RTN fader MAXIMUM only during measurement, MINIMUM at all other times.
1-4 ST SUB IN
AUX 1,2 level control MAXIMUM
ST level control MAXIMUM
PFL switch OFF
1-5 2TR IN
ST level control MAXIMUM
PFL switch OFF