APart CHAMP-3D [7/24] Lcddisplay

INFO@APART-AUDIO.COM

LEDVUMeter

Innormalsituations,theLEDVUmeterindicatesthechannel’soutputlevel,where0dBistheabsolute

maximum.TheLED’swilllightupingreen,showingtheactualoutputlevel.

WhenthepushbuttonbeneaththeVUmeterispushedonce,thechannelismuted.TheSGL/ERROR

LEDwilllightuporange.WhentheSGL/ERRORisred,anerrorhasoccurredandthechannelwillbe

disabledormuteduntiltheerrorisremoved.

Whenthemasterlevelisturnedup,theoutputlevelwillincrease.Whenthemaximumsafelevelis

reached,theinternalcompressorwillreducetheoutputsignal.TheupperLED’sintheVUmeterwill

becomeorangetoindicatethemeasureofautomaticgainreduction.Whenthe0dBLEDlightsupred,

theamplifierisclipping.Alwaysavoidclipping!

LCDDisplay

Wheninuse,thedisplaywillshowtheuserdefinabletext.Defaulttextis

CHAMP3D,largefont.Thistextandthefonttypecanbechangedvia

RS232instructions.

Theactualmasterlevelisalsoshown,inthiscase-72dB.

Pushingthepushbuttonnexttothearrowwillallowyoutoenterthemain

menu.Thenextscreenwillpopup

7)Rotaryencoder:innormaloperation,youcancontrolthemastervolumewiththisencoder.

Whenyouenterthemenu,thisencoderisusedtochangetheselectedparametervalue.The

editableparameterwillbehighlightedinthedisplay.

8)StandbyLED:thisLEDlightsupwhentheamplifierisinstandbymode.Thestandbyfunctionis

availableviaRS232instructiononly.WhenthemainspowerswitchisintheOFFposition,all

electricalcircuitswillbedeactivatedandstandbymodewillnotbeavailable.