immediately when you ramp it back up to full power. activates as soon as
yousettheStandbyswitchtothe0positionandtheMuteLED showsthisstatusby
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
starttheprogrammingprocesswiththeWritebutton(35).
When programming MIDI presets, ensure
Standbyisset to (thatis,the powerampisactive) ifyouwantthis presettodisable
and enable the power amp so the speaker renders your sound. If the
Standbyswitchissetto0duringprogramming,theampwillbemutedwhenyouselect
this MIDI presets precisely because the function was enabled during
programming. Therefore the power amp will not boost the signal and the sound will
notbeaudibleoverthespeaker.
Donotengagethe Standby switch whencopyingwiththeWrite/Copy ( )button,as
thislaunchesawriteoperation.ThecontrolsystemtreatstheStandbyswitchmuchlike
afunctionbutton.Ifyouuseittoeditthestoredsettings,theStatusLEDwillflash.
To learn more about this, see section and
intheappendixonpage27and28.
Ifthe ampisinStandbymode,deactivatingtheAmpMutefunctionviatheAmpMute
Z-9 command will not activate it. The same goes for sending MIDI controller #7 (or
#28)commandsandselectingMIDIpresetsprogrammedwith deactivated.
YoumustfirstfliptheStandbyswitch.
Ontheonehand,theamp's surveillance system monitors if speakercordsareplugged
into (62,63), (64, 65), and (66).Ifnone
of these ports is in use, flipping the Standby switch will not activate the power amp.
Thisensurestheampisnotoperatedwithoutaconnected 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
identifythegiventube.Specifically,itlightsupbrieflyatregularintervals-onceforV1,
twiceforV2,thriceforV3,andfour times for V4. Because the tubemonitoringsystem
only works when the power tubes are up and running, this indicator is not enabled
untilyouactivatethepoweramp
Amp Mute
On
Amp Mute
Amp Mute
Write/Copy Programming sounds
(Settings)toMIDIpresentsinindividualsteps
AmpMute
Poweramp Outputs 4 Ohms 8Ohms 16Ohms
IMPORTANT note; please read and heed:
If you want the power amp to be enabled in a MIDI preset, you must program it
withStandbysetto !
Note:
Moregood-to-knowinfo:
On
(36)
35
35
Iftheampispowered
up and the Standby switch is set to On, the Standby circuit is deactivated internally
andtheStatusLEDshowsthisbyflashingrapidly.
(StandbyswitchsettoOn).Pleasereadthefollowing
paragraphforfurtherimportantDetails.
The electronic power amp monitoring system constantly gauges the current flowing
througheachpoweramptube.If it rises totoohighalevel the system shuts downthe
giventube.
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
extremepowerspikes,orwhenatubeisdefective.
Reset this electronic monitoring system by flipping the Standby switch off and on
AnimportantnoteonthePowerTubeMonitor(P.T.M.)system:
17
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