Справочник Пользователя для Roland KR7/5

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Appendices
Troubleshooting
Case
Cause/Remedy
The power doesn’t 
come on.
Is the power cord connected and plugged in 
correctly? (p. 18)
The button doesn’t 
work.
Is the panel locked? (p. 157) 
Turn the power off, then back on.
Nothing appears 
on screen.
The KR-7/5 uses a liquid-crystal screen, so 
text may not be displayed when the ambient 
temperature is below freezing.
Vertical lines ap-
pear in the screen/
Color is “washed 
out” at the edges of 
the screen
These occur due to the nature of a liquid crys-
tal display, and do not indicate a malfunction. 
They can be minimized by adjusting the 
brightness of the screen. (p. 22)
The touch screen 
doesn’t respond 
correctly.
The positioning of the touch screen may be-
come displaced if some time has passed since 
it was last used. Take a look at “Calibrating 
the Touch Screen (Touch Screen)” (p. 156) to 
correct the positioning.
The pedal rattles
Adjust the adjuster underneath the pedal so 
that the pedal presses firmly against the floor 
surface. (p. 20)
Depressing a ped-
al 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. 18).
Normal pedal operation is automatically en-
abled when the One Touch Program [Piano] 
button is pressed (p. 20).
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 dis-
play 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. 21).
No sound is heard
No sound is heard.
Is the volume level of the KR-7/5 (p. 20) 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. 67)
Are all sliders in the Equalizer screen at the 
minimum level? (p. 34)
Has the footage been adjusted so that all fre-
quency components aren’t sounded? (p. 15 in 
the Quick Start)
No sound is heard 
(when a MIDI in-
strument is con-
nected). 
Have all devices been switched on?
Does the MIDI channel match the connected 
instrument? (p. 160)
Is the Computer switch on the bottom of the 
KR-7/5 set to “MIDI”? (p. 163)
You cannot use a 
connected MIDI 
device and com-
puter simulta-
neously
The MIDI connectors and the computer con-
nector 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 connect-
ed to the Computer connector (p. 163).
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. 160)
Not all played 
notes are sound-
ed.
The maximum number of notes that the KR-7 
can play simultaneously is 128, and that the 
KR-5 can play is 64. Frequent use of the damp-
er 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.
The sound is strange
Sounds are heard 
twice (doubled) 
when the keyboard 
is played. 
When the KR-7/5 is connected to an external 
sequencer, set it to the Local OFF mode 
(p. 160). Alternatively, the sequencer could be 
set so its Soft Thru feature is OFF.
Case
Cause/Remedy
Appendices
If you think there’s a problem, read this first.