Owner`s manual

– 7 – AtlasSound.com
Specifications are subject to change without notice.
Owner’s Manual
F6-MF
Multi-Impedance Modular Amplifier
1601 Jack McKay Blvd. • Ennis, Texas 75119 U.S.A.
Telephone: [phone] • Fax: [phone]
Front Panel
1. System LED Indicators
Power WhenACMainspowerisappliedtotheF6-MFandtheACMainsPowerSwitchisinthe“On”position,thisLEDwill
illuminateBlueindicatingtheF6-MFisreadyforuse.
Temp ThisLEDrepresentsthetemperatureconditionoftheMainframe.TheLEDwillilluminateYellowifanyoftheFM250
amplifier channels reaches 10% of their Thermal Protect shut off and the fan cooling system is at its maximum cooling
capability.AlsorefertotheProtectLEDbelow.
Standby IftheStandbyLEDisilluminatingOrange,itmeanstheF6-MFisinEnergySaveMode.TheF6-MFcanbeturnedon
viathreemethods;PowerSwitch,DCVoltage,orContactClosure.Note: The F6-MF is shipped with a shunt across
the CC contacts to activate the amp from Standby Mode. This is to be used when remote activation is not required.
IftheStandbyLEDisnotilluminating,theFrontPanelBlueLEDPowerLEDwillbeilluminatedand,theFMModule's
ReadyLEDs(Green)willbeon.Thismeanstheamplifierisreadytouse.Ifnot,checktheACMainsandpowerswitch.
2. Module LED Status Indicators for Each Channel
Ready ThisLEDwillilluminateGreenwhenanFM250powermoduleisinstalledontheappropriatechannelandtheF6-MFis
turned on.
Signal ThechannelSignalLEDwillilluminateGreenwhentheFM250amplifieroutputsignalproducesaminimum1Watt
output.
Limit TheLimitLEDwillilluminateYellowunderloadconditions.IftheFM250functionswitchissettoLimitthentheLED
actsasamaximumlevelindicator.IftheFM250channelLimitfunctionisoff,theLEDreactsasaClipindicator.Also,
underLowImpedanceloads,thisLEDservesasacurrentLimitindictor.
Protect TheProtectLEDwillilluminateRedduringonethefollowingconditions.NooutputwilloccurwhilethisLEDis
illuminated. It will reset itself after the condition has been corrected.
1) Shorted speaker output.
  2)ThermalShutOff.TheTempF6-MFTEMPLEDwillalsobeilluminated.
3) Current Overdrive. If the amplifier channel is driving too low of a speaker load.
3. Channel Level Controls
Therearesixdetentedlevelcontrols,oneforeachoftheF6-MF'ssixFM250channelcardslots.Whenanyofthepotentiometers
is turned down (left or FCC (Fully Counter Clockwise)), no signal will come out of the corresponding amp channel. When the
potentiometer is turned up (right to the eighth detent or FC (Fully Clockwise)), the amp will be set for maximum level.
4. Air Exhaust
The F6-MF has fan assist cooling and draws cool air in from the rear of the amp and exhausts the hot air out of the front panel.
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