Hughes & Kettner Coreblade Manual De Instrucciones página 16

16
Voltage selection and fuse replacement may be performed by experienced service
technicians only. Accordingly, the following instructions are addressed exclusively
to service technicians:
• Use a small flat screwdriver to remove the voltage selector from the mains
socket.
• If the fuse is defective, replace it with a fuse bearing the specified rating.
• Turn the voltage selector and insert it back into the port so that the desired
mains voltage rating is legible and faces towards the top left (next to the Voltage
Setting arrow).
COREBLADE is connected properly, but no sound is audible.
• The guitar's volume knob is turned all the way down.
• The amp is set to STANDBY.
• The amp's MASTER and/or VOLUME knob is turned all the way down.
• The effects loop is active and set to SERIAL, but no effect device is connected.
• The anode fuse has blown. Check the TSC™ display (see section 6.3.2) to ensure
none of the LEDs is illuminated. Ensure that it is replaced with a fuse of the
same rating.
• The fuse for the tube heating tripped (the tubes don't glow). Ensure that it is
replaced with a fuse bearing the same rating.
The amp makes ringing noises when played and tends to feedback.
• One or several tubes are microphonic. Have a technician check the tubes and, if
necessary, replace the defective tube with another of the same type. Read section
6.4 to learn more.
The amp sounds washed out or muddy when you switch an outboard effect on.
• The signal processor provides a wet signal that is blended with the dry source
signal. Depending on the type of effect, the processor may be returning a dry
signal back along with the wet signal, which causes phase cancellations when it is
mixed to the dry signal in
C o r e b l a d e
set the effects loop to SERIAL or turn the dry signal all the way down on the
signal processor.
C o r e b l a d e
's parallel loop. To prevent this,