Hughes & Kettner Tube 50 - Handbuch (Seite 9)

9
TUBE 50/100 - MANUAL
ENGLISH
2.0 STANDARD SETUP/
CABLE CONNECTIONS
®
MAINS IN: Connect the included
Euro-norm mains cord to this socket.
Ensure the amp's voltage rating mat-
ches your local AC voltage rating
before you plug the cord into the wall
socket.
POWER TUBE STATUS LEDs: If one of these LEDs illuminates continually,
then the corresponding power tube is defective (cathode short). Even if the
TUBE 50 / TUBE 100 continues to operate (with reduced power and an
altered sound), the tube and the corresponding fuse must be replaced as
soon as possible to avoid damaging the amp. Note that the POWER TUBE
STATUS LEDs indicate a cathode short only, and no other power tube
defect.
Don't be alarmed if all POWER TUBE STATUS LEDs illuminate at once
briefly in response to your picking attack (at higher volumes). This indica-
tes the tubes are operating correctly. If one of the LEDs does not illuminate
along with the others, this may indicate a defective tube heater or a faulty
contact at the tube socket.
4-OHM SPEAKER JACKS: Dual jacks wired in parallel for speaker
cabinets with an overall impedance of 4 ohms, e.g. two 8-ohm cabi-
nets.
8/16-OHM SPEAKER JACK: Jack for speaker cabinets with an overall
impedance between 8 and 16 ohms, e.g. one 8-ohm cabinet.
MAINS FUSE: AC power fuse. Ensure you
use specified replacement fuses only, as
needed depending on the local voltage.
ANODE FUSE: Fuse holder for the power tube
anode fuses. Ensure you only use fuses rated to the
indicated specifications. If a replacement fuse trips
shortly after it has been installed, you can safely
assume that one of the power tubes is defective
even if the POWER TUBE STATUS LED does not
illuminate to indicate a cathode shortout.
FX RETURN: Connect this jack to your effects processor's output jack.
Activate the FX loop, and you can use the FX-MIX pot to blend this effected
signal with the amplifier‘s preamp signal.
FX SEND: The preamp signal of your TUBE 50 /
TUBE 100 is routed through this jack at all times
(without reverb), regardless of the FX-MIX pot set-
ting and the FX-LOOP SELECTOR button setting.
Connect this jack to your effects processor's input
jack.
RED BOX D.I. OUT: This is a frequency-correc-
ted balanced output that enables you to feed a
signal from the TUBE 50 / TUBE 100 directly to
a mixing console for stage and recording purpo-
ses. If necessary, you can feed this signal to an
unbalanced jack (1/4" mono) at the mixing con-
sole. The level of this output signal is influenced
by the POWER AMP setting and the impedance
of the connected speakers.
MIDI MODULE PORT:
When a qualified service
technician installs the
MIDI Module in your
TUBE 50 / TUBE 100, he
must remove this cover
plate first (after removing
the AC power cord and
waiting at least 2 minutes
for the amp to power
down).
POWER TUBE PANEL: For safety purposes, the tubes and
cathode fuses in your TUBE 50 / TUBE 100 are protected
by a sheet metal panel. When a qualified service technician
replaces the tubes in your amp, he must remove this panel
first (after removing the AC power cord and waiting at least
2 minutes for the amp to power down).
-10 db SWITCH: Press this switch
if you have connected a stomp box
or other instrument-level processor
to the FX Loop and the input of that
processor is overloading. This
switch will reduce the TUBE
50/100‘s preamp output to prevent
the overload.