Roland KR-15 Manuale Proprietario

Pagina di 212
 
180
 
Appendices
 
Troubleshooting
 
Case
Cause/Remedy
 
The power doesn’t 
come on
 
Is the power cord connected and plugged in 
correctly? (p. 20)
 
The button doesn’t 
work
 
Is the panel locked? (p. 166) 
Turn the power off, then back on.
 
Nothing appears 
on screen
 
The KR uses a liquid-crystal screen, so text 
may not be displayed when the ambient 
temperature is below freezing.
 
Vertical lines 
appear in the 
screen/Color is 
“washed out” at the 
edges of the 
screen
 
These occur due to the nature of a liquid 
crystal display, and do not indicate a 
malfunction. They can be minimized by 
adjusting the brightness of the screen (p. 24).
 
The touch screen 
doesn’t respond 
correctly
 
The positioning of the touch screen may 
become displaced if some time has passed 
since it was last used. Take a look at 
“Calibrating the Touch Screen (Touch 
Screen)” (p. 165) to correct the positioning.
 
Depressing a 
pedal has no 
effect, or the pedal 
effect doesn’t stop
 
Is the pedal connected correctly? 
Make sure the pedal cord extending from the 
stand is securely connected to the pedal 
connector on the rear of the unit (p. 20).
Normal pedal operation is automatically 
enabled when the One Touch Program 
[Piano] button is pressed (p. 21).
 
The volume level 
of the instrument 
connected to Input 
jacks is too low
 
Could you be using a connection cable that 
contains a resistor? 
Use a connection cable that does not contain a 
resistor.
 
Images not shown 
on external display 
when external 
display is 
connected
 
Is the external display’s power turned on?
Are you using a display that is compatible 
with the KR?
Refer to “Displays That Can Be Connected to 
This Instrument” (p. 23).
 
Low hum coming 
from external 
device
 
Do you have different external devices 
plugged into different power outlets?
When connecting external devices, always 
draw power from the same outlet.
 
No sound is heard
 
No sound is heard
 
Is the volume level of the KR (p. 22) or 
connected device turned all the way down?
Has the Balance knob been moved all the way 
to the right or left?
Has the volume been set to “0” using the Part 
Balance? (p. 75)
Are all sliders in the Equalizer screen at the 
minimum level? (p. 40)
Has the footage been adjusted so that all 
frequency components aren’t sounded? (p. 15 
in the Quick Start)
 
No sound is heard 
(when a MIDI 
instrument is 
connected)
 
Have all devices been switched on?
Does the MIDI channel match the connected 
instrument? (p. 174)
Is the Computer switch on the bottom of the 
KR set to “MIDI”? (p. 178)
 
You cannot use a 
connected MIDI 
device and 
computer 
simultaneously
 
The MIDI connectors and the computer 
connector cannot be used at the same time. 
Confirm that the computer switch is set to 
“MIDI” when a MIDI device is connected to 
the MIDI connector, and to either “MAC,” 
“PC-1,” “PC-2,” when a computer is 
connected to the Computer connector (p. 178).
 
No sound is heard 
when the keyboard 
is played
 
Has Local Control been set to “Off”?
When Local Control is set to Off, no sound is 
produced by playing the keyboard. 
Set Local Control to On (p. 174).
 
Not all played 
notes are sounded
 
The maximum number of notes can play 
simultaneously is 128. Frequent use of the 
damper pedal during automatic 
accompaniment or when playing along with a 
song on floppy disk may result in 
performance data with too many notes, 
causing some notes to drop out.
 
Case
Cause/Remedy
 
Appendices
 
If you think there’s a problem, read this first.
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