Roland KC-880 - Manual (Page 16)

16
Block Diagram
block.eps
SPEAKER
(L/R)
EFX (L/R) PHONES
(L/R)
LINE OUT
(L/R)
HPF
LPF
POWER AMP
TWEETER R
WOOFER R
EQUALIZER
CH1
BALANCED
CH1
L/R
CH2
L/R
CH3
L/R
CH4
L/R
CH 1
CH 2
CH 4
LO
W MIDDLE HIGH
VOLUME
STEREO
LINK
SPEED TY
P
E
CH 3
EFX
EFX
EFX
EFX
STEREO
LINK IN
(MONO)
EFX
AUX 1
L/R
AUX 2
L/R
AUX IN/
MONITOR IN
AUX 3
(STEREO)
LEVEL
MUTE
SPEAKER
LINE OUT
STEREO
LINK OUT
L/R
FOOT SW
TIP: ON/OFF
RING: SPEED
HPF
LPF
TWEETER L
WOOFER L
GND LIFT
LINE OUT
L/R
LINE OUT
XLR
L/R
PHONES
(STEREO)
PHONES
EQUALIZER
R
L
Troubleshooting
If the unit doesn’t work the way you think it should, then before you do anything else, first check the following points. If these checks fail to
determine the cause, consult your retailer or the nearest Roland Service Center.
Problem Cause
No power.
Is the power cord correctly plugged in to a
power outlet?
No sound.
Is the external equipment connected
correctly?
Are the [VOLUME] knob and the volume
knobs for the respective channels adjusted
correctly?
Are the AUX IN/MONITOR IN [MUTE]
buttons switched on?
If the problem of no sound persists, contact
your retailer or the nearest Roland Service
Center.
Sound is
distorted or
noisy.
Are the [VOLUME] knob and the volume
knobs for the respective channels turned
up too high?
Is the input signal from the device
connected to the mixer at an appropriate
level?
Problem Cause
Low sound.
Are the [VOLUME] knob and the volume
knobs for the respective channels adjusted
correctly?
Are connections made to both the XLR-
type and 1/4” phone connectors for
channel 1 (CH1)?
Use only one of the two connectors.
Is the input signal from the device
connected to the mixer at an appropriate
level?
Are two or more devices connected to AUX
IN?
Effects are not
applied.
Are the [EFX] buttons for the respective
channels switched on?
Is the [EFX] knob adjusted correctly?
Have effects been turned off using the
footswitch pedal?
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