Owner`s manual

9
Appendix
Troubleshooting
If the PK-25 does not function as you expect, please
check the following points first. If this does not resolve
the problem, contact your dealer or a nearby Roland
service center.
● The power (indicator) does not come on when I turn
on the power switch.
◆ If the PK-25 is connected to a device that cannot
use the PK cable (such as the VK-8), the supplied
AC adaptor must be used. After connecting the
AC adaptor correctly, turn the power switch on.
● The power (indicator) does not turn on/off when I
turn the PK-25’s power switch on/off.
◆ The PK-25’s power is switched on/off in tandem
with the VK-88 when it is connected to the VK-88
using the PK cable that is supplied with the VK-
88. Make sure that the VK-88’s power is turned on
and the PK cable is connected correctly.
● Not ready for operation immediately after power-
up.
◆ The PK-25 requires approximately five seconds
after it’s powered up before it’s ready for normal
operation.
● The foot switch, Hold pedal, and/or expression
pedal do not operate correctly.
◆ Make sure that the expression pedal cable is
correctly connected to the connector on the upper
part of the PK-25 (p. 7).
◆ If the PK cable that is supplied with the VK-88 is
used to connect the PK-25 to the VK-88
• Make sure that the cable is connected correctly
(p. 7).
• Check the settings of the switches or pedals.
Foot switch: VK-88 Owner’s Manual, p. 68 (PK
FOOT L ASSIGN/PK FOOT R ASSIGN)
Hold pedal: VK-88 Owner’s Manual, p. 80
(HOLD PEDAL ASSIGN)
Expression pedal: VK-88 Owner’s Manual,
p. 82 (ORCHESTRAL TONES EXPRESSION)
◆ If a MIDI cable is used to connect the PK-25 to the
VK-8
• Check that the MIDI cable is connected
correctly (p. 8).
• If you wish to use the expression pedal to
control the volume of the Other Tones, use a
stereo cable (phone-phone) to connect the PK-
25’s EXPRESSION OUT jack to the VK-8’s
EXPRESSION PEDAL jack, or the PK-25’s
EXPRESSION OUT jack to the VK-8’s
CONTROL PEDAL jack. (VK-8 Owner’s
Manual, p. 40–41)
◆ If MIDI and analog cables are used to connect the
PK-25 to the VK-8
• Make sure that the polarity of the VK-8’s
CONTROL PEDAL jack is set to “Standard.”
(VK-8 Owner’s Manual, p. 56)
• Make sure that a function is assigned to the VK-
8’s CONTROL PEDAL jack. (VK-8 Owner’s
Manual, p. 40–41)
• Use a stereo cable (phone-phone) when
connecting the PK-25’s EXPRESSION OUT jack
to the VK-8’s EXPRESSION PEDAL jack, or the
PK-25’s EXPRESSION OUT jack to the VK-8’s
CONTROL PEDAL jack.
● Cannot assign a function to the foot switch.
◆ When the PK-25 is connected to the VK-8 without
using analog cables, functions other than Rotary
Slow/Fast (foot pedal L) and Rotary Brake (foot
pedal R) cannot be assigned.
● MIDI channel can’t be changed.
◆ The MIDI transmission channel is fixed at channel
2 (p. 8).
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