Yamaha RM800 - Manual (Page 5)

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-■Mil I *
TAPE'----- 1 -
GAIN -60
PEAK O
SIGNAL O
-15 +15
MID
EQ
° AUX2^° O
° AUX3^°
° AUX 4^0
_(
2
)
_(3)
_d)
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Input Module
(D M/L-TAPE Switch
This switch selects the signal source for an input module: MIC/LINE or TAPE.
( 2 ) 20dB Pad switch
This switch controls the 20dB input pad (i.e. attenuator) for the MIC/LINE
inputs, When an input signal’s level is so high that it cannot be set correctly
using the GAIN control alone, use the Pad to attenuate the signal to a more
manageable level. Pad is engaged when the switch is down. TAPE IN is not
affected by the pad.
(3) GAIN Control
This controls the gain of the MIC/LINE input preamp. Up to 44dB of gain is
available. There is no gain control for TAPE IN.
The GAIN control should be set in conjunction with the SIGNAL and PEAK
LEDs. When a signal is present, the SIGNAL LED should be lit most of the time
and the PEAK LED should light occasionally. If the PEAK LED lights up too
often though, turn down the GAIN control a little otherwise signal distortion
may occur.
The following table shows some typcial GAIN control settings:
Signal Source GAIN position 20dB pad switch
Dynamic mie (iow ievel) -60 —50 off
Condenser mie (high ievei) -35 off
Audio device, eiectronic musical in­
strument (low level)
-20 off
Audio device, electronic musical in­
strument (high level)
+4 on
(4) SIGNAL and PEAK LEDs
The purpose of the green SIGNAL LED is to indicate when a signal is present.
It lights up when the post-EQ signal level reaches -lOdB.
The purpose of the red PEAK LED is to indicate when a signal is dangerously
close to clipping. It lights up when the post-EQ signal level reaches 3dB below
clipping. See the GAIN control explanation for set up details.
® EQ Section
Input modules feature 3-band EQ with sweepable Mid. All three bands have a
gain range of ±15dB. Turn the HIGH, MID, or LOW control clockwise to
boost; counterclockwise to cut. The EQ has no effect when these controls are
RM800 User's Cuide