immediately when you ramp it back up to full power.
activates as soon as
you set the Standby switch to the 0 position and the Mute LED
shows this status by
lighting up. You can easily program the Amp Mute function to MIDI presets to mute
the amp using a simple MIDI footboard. To do this, set the Standby switch to 0 and
start the programming process with the Write button (35).
When programming MIDI presets, ensure
Standby is set to
(that is, the power amp is active) if you want this preset to disable
and enable the power amp so the speaker renders your sound. If the
Standby switch is set to 0 during programming, the amp will be muted when you select
this MIDI presets precisely because the
function was enabled during
programming. Therefore the power amp will not boost the signal and the sound will
not be audible over the speaker.
Do not engage the Standby switch when copying with the Write/Copy ( ) button, as
this launches a write operation. The control system treats the Standby switch much like
a function button. If you use it to edit the stored settings, the Status LED will flash.
To learn more about this, see section
and
in the appendix on page 27 and 28.
If the amp is in Standby mode, deactivating the Amp Mute function via the Amp Mute
Z-9 command will not activate it. The same goes for sending MIDI controller #7 (or
#28) commands and selecting MIDI presets programmed with
deactivated.
You must first flip the Standby switch.
On the one hand, the amp's surveillance system monitors if speaker cords are plugged
into
(62, 63),
(64, 65), and
(66). If none
of these ports is in use, flipping the Standby switch will not activate the power amp.
This ensures the amp is not operated without a connected load.
In addition, an electronic surveillance system monitors the power tubes. The Status
LED flashes to alert you to a defective power tube, blinking in different patterns to
identify the given tube. Specifically, it lights up briefly at regular intervals - once for V1,
twice for V2, thrice for V3, and four times for V4. Because the tube monitoring system
only works when the power tubes are up and running, this indicator is not enabled
until you activate the power amp
Amp Mute
On
Amp Mute
Amp Mute
Write/Copy
Programming sounds
(Settings) to MIDI presents in individual steps
Amp Mute
Poweramp Outputs 4 Ohms
8 Ohms
16 Ohms
IMPORTANT note; please read and heed:
If you want the power amp to be enabled in a MIDI preset, you must program it
with Standby set to
!
Note:
More good-to-know info:
On
(36)
35
35
If the amp is powered
up and the Standby switch is set to On, the Standby circuit is deactivated internally
and the Status LED shows this by flashing rapidly.
(Standby switch set to On). Please read the following
paragraph for further important Details.
The electronic power amp monitoring system constantly gauges the current flowing
through each power amp tube. If it rises to too high a level the system shuts down the
given tube.
This can occur when the amp is operated incorrectly (for example, if the impedance is
wrong due to an incorrect speaker load; see page 24 and 25 for permissible loads), at
extreme power spikes, or when a tube is defective.
Reset this electronic monitoring system by flipping the Standby switch off and on
An important note on the Power Tube Monitor (P.T.M.) system:
17
