Rear Panel Features - Engl INVADER II Operator's Manual

again after a brief pause. When you press the standby switch to turn the amp on again,
the system again measures the current sent to the tube. If it is still too high, the power
amp must be checked by a service technician, and the tube may have to be replaced if
it is defective.
Do not flip the Standby switch off and on in short time intervals if the
HEADS UP:
Status LED indicates a tube failure. Wait around 30 seconds before you engage the
poweramp again after you have switched it off!
A tip from the designer:
I suggest you get into the habit of using standby during short breaks. In this mode,
current is not piped through the power tubes, so they don't get as hot (due to the lack
of anode dissipation) and are spared considerable wear. The amp is ready to run when
you flip the Standby switch because the tubes are already warm and don't require time
to heat up. For breaks of 20 minutes and longer, I recommend that you switch the amp
off in order to conserve energy.
There's another function called Amp Mute that is also controlled via the Standby
switch. You can use it to conveniently silence the power amp when switching or tuning
guitars via a MIDI preset. All you have to do is first program the target MIDI preset by
setting the Standby switch to "0" (Power Amp off ). Then the amp will always be muted
when you select this preset. The Mute LED (36) indicates this function's current status.
39 Power
Mains power on/off.
ensure that the Stand By switch (38) is set to Stand By (0 position) before
Please note:
you switch the amp on. Let the tubes heat up for about 30 seconds before you activate
the power amp. This procedure spares the tubes.
After an extended period of operation and higher ambient temperatures
CAUTION:
the amps's chassis can become very hot, therefore avoid touching the rear panel
surface and the ventilation grille on the top!

Rear Panel Features

On page 2 and 39 of the manual, you'll find diagrams of the front and rear panels.
40 Mains Connector ( AC Power Inlet, )
IEC - C14 connector
Plug the mains cord in here.
Make sure you use an intact mains line cord with a grounded plug! Before
CAUTION:
you power the amp up, ensure the voltage value printed alongside the mains port is
the same as the current of the local power supply or wall outlet.
Please also heed the guidelines set forth in the separately included pamphlet,
Instructions for the Prevention of Fire, Electrical Shock and Injury .
41 Mains Fuse Box:
The rear chamber contains the mains fuse and the front chamber a spare fuse.
:
CAUTION ALWAYS make sure replacement fuses are of the same type and have the
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