16
Press and hold the two ON buttons for FX LOOP
and REVERB simultaneously for more than three
seconds to save the settings and quit MIDI setup
mode. The buttons will stop flashing to indicate the
amp is back in normal operating mode.
3.3 Factory Settings and How to
Restore Them (Factory Reset)
To reset the amp to the factory default settings,
press and hold the REVERB ON and FX LOOP
ON while powering up simultaneously until the
MIDI LEARN button lights up. After you release
the ON buttons, MIDI LEARN will flash once
to confirm that the reset has been executed properly.
The factory defaults are:
• OMNI ON
• MIDI Channel 1
The factory default settings and assignments for
sounds are:
MIDI
Preamp
Program
Channel
1
Clean
2
Crunch
3
Lead
4
Clean
5
Clean
6
Crunch
7
Lead
8
Clean
9
Clean
10
Crunch
11
Lead
12
Clean
13
Clean
14
Crunch
15
Lead
16
Clean
Power
FX
Output
Loop
REVERB
36 W
OFF
ON
36 W
OFF
OFF
36 W
OFF
OFF
0 W
OFF
OFF
18 W
OFF
ON
18 W
OFF
OFF
18 W
OFF
OFF
0 W
OFF
OFF
5 W
OFF
ON
5 W
OFF
OFF
5 W
OFF
OFF
0 W
OFF
OFF
1 W
OFF
ON
1 W
OFF
OFF
1 W
OFF
OFF
0 W
OFF
OFF
4
Tube Safety Control (TSC™)
TSC™ adjusts bias to improve the amp's tonal and
technical stability and extend power tubes' life. It
does this automatically and continuously, so there is
nothing for you to do but enjoy the convenience.
Swapping tubes is more easily, quickly, and safely
done than with a conventional amp. This is a big
help not only in case of a defect, but also when you
want to compare different brands of replacement
tubes.
CAUTION: Replacing tubes is a job for qualified
professionals! TSC™ merely spares the technician the
biasing effort.
What do the LEDs indicate?
Each LED is assigned to the power tube occupying
that same position. Getting a read-out of tubes'
operating status and bias points is easy using any
standard guitar pick.
4.1 Automatic Status Indications:
All LEDs Light Up And Stay On
All LEDs remain on for as long as the amp is in
standby mode. When you flip the STANDBY
switch to PLAY, they will extinguish after about 30
seconds. If the LEDs remain illuminated, the most
likely cause is a blown anode fuse that needs to be
replaced by a technician. The anode fuse can trip if
a tube is already defective when the amp is switched
on, and TSC does not have enough time to measure
idle current and shut the faulty tube down.
None of the LEDs Lights Up
The power tubes are operating normally.
One LED Lights Up Continuously
The tube assigned to this LED is not delivering
enough current and has been shut down. If the LED
does not extinguish after a few minutes, this tube
must be replaced.