Crest_Audio_XR-20,_XR-24_Schematics电路图.pdf

Schematic Set For XR-20 and XR-24 Rack-Mount Mixers XR-20 12 Mono Inputs 4 Stereo Inputs XR-24 8 Mono Inputs 8 Stereo Inputs RadioFans.CN 收音机爱 好者资料库 SOLO OFF GAIN AUX 1-2 PRE 40 20 10 0 6 3 30 + 40 20 10 0 6 3 30 + 40 20 10 0 6 3 30 + 40 20 1010 0 6 3 30 + 40 20 10 0 6 3 30 + 0 1515 88 + 600 1K 2K 3K 8K400 5K 300 500500 1K 2K100 EQ ON L ODD R EVEN = 12 = AUX 3-4 PRE AUX 5-6 PRE PAN MUTE 0 1515 88 + 0 1515 88 + 0 1515 88 + G3-4 G1-2 L-R LO CUT LEV PAN MONO BUS ASSIGN SIG PK G1 AFL AUX SENDS 5 6 TAPE IN FROM MONITOR P H O N E S 1 3 5 7 100 9 28 64 SUM MONO 1 3 5 7 100 9 28 64 MONITOR SOURCE SELECT (ADD) SOLO OFF A1-2 TAPE IN 1 3 5 7 100 9 28 64 ALT OUT (L-R) 40 15 10 0 10 520 + 40 15 10 0 10 520 + 40 15 10 0 10 520 + 40 15 10 0 10 520 + 40 15 10 0 10 520 + 1 3 5 7 100 9 28 64 1-2 TO A1-2 TO L-R AFLAFL TAPE IN M GROUP ASSIGN TO MAINS A5A6 L R AUX OUT AUX OUT AUX OUT AUX OUT AUX OUT SOLOPWR LR G2G3G4 G1G2G3G4 LAMP 12V 5 10 0 5 10 20 30 LEFTRIGHTMONO ADD MONO TO PHONES & ALT OUT 1 GROUP MASTERS 0 9 6 12 3 6 9 3 15 24 18 21 LM LF HF HM 5 10 0 5 10 20 30 15 AUX 1-2 PRE 40 20 10 0 6 3 30 + 40 20 10 0 6 3 30 + 40 20 10 0 6 3 30 + 40 20 1010 0 6 3 30 + 40 20 10 0 6 3 30 + 0 1515 88 + 12 = AUX 3-4 PRE AUX 5-6 PRE 0 1515 88 + 0 1515 88 + 0 1515 88 + LEV PAN 2 LM LF HF HM AUX 1-2 PRE 40 20 10 0 6 3 30 + 40 20 10 0 6 3 30 + 40 20 10 0 6 3 30 + 40 20 1010 0 6 3 30 + 40 20 10 0 6 3 30 + 0 1515 88 + 12 = AUX 3-4 PRE AUX 5-6 PRE 0 1515 88 + 0 1515 88 + 0 1515 88 + LEV PAN 3 LM LF HF HM AUX 1-2 PRE 40 20 10 0 6 3 30 + 40 20 10 0 6 3 30 + 40 20 10 0 6 3 30 + 40 20 1010 0 6 3 30 + 40 20 10 0 6 3 30 + 0 1515 88 + 12 = AUX 3-4 PRE AUX 5-6 PRE 0 1515 88 + 0 1515 88 + 0 1515 88 + LEV PAN 4 LM LF HF HM AUX 1-2 PRE 40 20 10 0 6 3 30 + 40 20 10 0 6 3 30 + 40 20 10 0 6 3 30 + 40 20 1010 0 6 3 30 + 40 20 10 0 6 3 30 + 0 1515 88 + 12 = AUX 3-4 PRE AUX 5-6 PRE 0 1515 88 + 0 1515 88 + 0 1515 88 + LEV PAN 5 LM LF HF HM AUX 1-2 PRE 40 20 10 0 6 3 30 + 40 20 10 0 6 3 30 + 40 20 10 0 6 3 30 + 40 20 1010 0 6 3 30 + 40 20 10 0 6 3 30 + 0 1515 88 + 12 = AUX 3-4 PRE AUX 5-6 PRE 0 1515 88 + 0 1515 88 + 0 1515 88 + LEV PAN 6 LM LF HF HM AUX 1-2 PRE 40 20 10 0 6 3 30 + 40 20 10 0 6 3 30 + 40 20 10 0 6 3 30 + 40 20 1010 0 6 3 30 + 40 20 10 0 6 3 30 + 0 1515 88 + 12 = AUX 3-4 PRE AUX 5-6 PRE 0 1515 88 + 0 1515 88 + 0 1515 88 + LEV PAN 7 LM LF HF HM AUX 1-2 PRE 40 20 10 0 6 3 30 + 40 20 10 0 6 3 30 + 40 20 10 0 6 3 30 + 40 20 1010 0 6 3 30 + 40 20 10 0 6 3 30 + 0 1515 88 + 12 = AUX 3-4 PRE AUX 5-6 PRE 0 1515 88 + 0 1515 88 + 0 1515 88 + LEV PAN 8 LM LF HF HM AUX 1-2 PRE 40 20 10 0 6 3 30 + 40 20 10 0 6 3 30 + 40 20 10 0 6 3 30 + 40 20 1010 0 6 3 30 + 40 20 10 0 6 3 30 + 0 1515 88 + 12 = AUX 3-4 PRE AUX 5-6 PRE 0 1515 88 + 0 1515 88 + 0 1515 88 + LEV PAN 9 LM LF HF HM AUX 1-2 PRE 40 20 10 0 6 3 30 + 40 20 10 0 6 3 30 + 40 20 10 0 6 3 30 + 40 20 1010 0 6 3 30 + 40 20 10 0 6 3 30 + 0 1515 88 + 12 = AUX 3-4 PRE AUX 5-6 PRE 0 1515 88 + 0 1515 88 + 0 1515 88 + LEV PAN 10 LM LF HF HM AUX 1-2 PRE 40 20 10 0 6 3 30 + 40 20 10 0 6 3 30 + 40 20 10 0 6 3 30 + 40 20 1010 0 6 3 30 + 40 20 10 0 6 3 30 + 0 1515 88 + 12 = AUX 3-4 PRE AUX 5-6 PRE 0 1515 88 + 0 1515 88 + 0 1515 88 + LEV PAN 11 LM LF HF HM AUX 1-2 PRE 40 20 10 0 6 3 30 + 40 20 10 0 6 3 30 + 40 20 10 0 6 3 30 + 40 20 1010 0 6 3 30 + 40 20 10 0 6 3 30 + 0 1515 88 + 12 = AUX 3-4 PRE AUX 5-6 PRE 0 1515 88 + 0 1515 88 + 0 1515 88 + LEV PAN 12 LM LF HF HM AUX 1-2 PRE 40 20 10 0 6 3 30 + 40 20 10 0 6 3 30 + 40 20 10 0 6 3 30 + 40 20 1010 0 6 3 30 + 40 20 10 0 6 3 30 + 0 1515 88 + 12 = AUX 3-4 PRE AUX 5-6 PRE 0 1515 88 + 0 1515 88 + 0 1515 88 + LEV PAN S1 LM LF HF HM AUX 1-2 PRE 40 20 10 0 6 3 30 + 40 20 10 0 6 3 30 + 40 20 10 0 6 3 30 + 40 20 1010 0 6 3 30 + 40 20 10 0 6 3 30 + 0 1515 88 + 12 = AUX 3-4 PRE AUX 5-6 PRE 0 1515 88 + 0 1515 88 + 0 1515 88 + LEV PAN S2 LM LF HF HM AUX 1-2 PRE 40 20 10 0 6 3 30 + 40 20 10 0 6 3 30 + 40 20 10 0 6 3 30 + 40 20 1010 0 6 3 30 + 40 20 10 0 6 3 30 + 0 1515 88 + 12 = AUX 3-4 PRE AUX 5-6 PRE 0 1515 88 + 0 1515 88 + 0 1515 88 + LEV PAN S3 LM LF HF HM AUX 1-2 PRE 40 20 10 0 6 3 30 + 40 20 10 0 6 3 30 + 40 20 10 0 6 3 30 + 40 20 1010 0 6 3 30 + 40 20 10 0 6 3 30 + 0 1515 88 + 12 = AUX 3-4 PRE AUX 5-6 PRE 0 1515 88 + 0 1515 88 + 0 1515 88 + LEV PAN S4 LM LF HF HM SIG PK SOURCE IS PRE FADER XR20 L ODD R EVEN = PAN L ODD R EVEN = PAN L ODD R EVEN = PAN L ODD R EVEN = PAN L ODD R EVEN = PAN L ODD R EVEN = PAN L ODD R EVEN = PAN L ODD R EVEN = PAN L ODD R EVEN = PAN L ODD R EVEN = PAN L ODD R EVEN = PAN L ODD R EVEN = BAL L ODD R EVEN = L ODD R EVEN = L ODD R EVEN = BALBALBAL LINE INPUT ( MIC PAD ) 1 EQ ON EQ ON EQ ON EQ ON EQ ON EQ ON EQ ON EQ ON EQ ON EQ ON EQ ON EQ ON EQ ON EQ ON EQ ON AFLAFLA3A4 AFL 23456789101112S1S2S3S4 SIG PK PFL AUX SENDSAUX SENDSAUX SENDSAUX SENDSAUX SENDSAUX SENDSAUX SENDSAUX SENDSAUX SENDSAUX SENDSAUX SENDSAUX SENDSAUX SENDSAUX SENDSAUX SENDS 20 10 40 50 70 30 600 1K 2K 3K 8K400 5K 300 500500 1K 2K100 600 1K 2K 3K 8K400 5K 300 500500 1K 2K100 600 1K 2K 3K 8K400 5K 300 500500 1K 2K100 600 1K 2K 3K 8K400 5K 300 500500 1K 2K100 600 1K 2K 3K 8K400 5K 300 500500 1K 2K100 600 1K 2K 3K 8K400 5K 300 500500 1K 2K100 600 1K 2K 3K 8K400 5K 300 500500 1K 2K100 600 1K 2K 3K 8K400 5K 300 500500 1K 2K100 600 1K 2K 3K 8K400 5K 300 500500 1K 2K100 600 1K 2K 3K 8K400 5K 300 500500 1K 2K100 600 1K 2K 3K 8K400 5K 300 500500 1K 2K100 600 1K 2K 3K 8K400 5K 300 500500 1K 2K100 600 1K 2K 3K 8K400 5K 600 1K 2K 3K 8K400 5K 300 500500 1K 2K100 600 1K 2K 3K 8K400 5K 300 500500 1K 2K100 SUM INPUTS SUM INPUTS SUM INPUTS SIG PK PFL SIG PK PFL SIG PK PFL SIG PK PFL SIG PK PFL SIG PK PFL SIG PK PFL SIG PK PFL SIG PK PFL SIG PK PFL SIG PK PFL SIG PK PFL SIG PK PFL SIG PK PFL SIG PK PFL SIG PK AFL MUTE G3-4 G1-2 L-R MONO BUS ASSIGN 5 10 0 5 10 20 30 15 MUTE G3-4 G1-2 L-R MONO BUS ASSIGN 5 10 0 5 10 20 30 15 MUTE G3-4 G1-2 L-R MONO BUS ASSIGN 5 10 0 5 10 20 30 15 MUTE G3-4 G1-2 L-R MONO BUS ASSIGN 5 10 0 5 10 20 30 15 MUTE G3-4 G1-2 L-R MONO BUS ASSIGN 5 10 0 5 10 20 30 15 MUTE G3-4 G1-2 L-R MONO BUS ASSIGN 5 10 0 5 10 20 30 15 MUTE G3-4 G1-2 L-R MONO BUS ASSIGN 5 10 0 5 10 20 30 15 MUTE G3-4 G1-2 L-R MONO BUS ASSIGN 5 10 0 5 10 20 30 15 MUTE G3-4 G1-2 L-R MONO BUS ASSIGN 5 10 0 5 10 20 30 15 MUTE G3-4 G1-2 L-R MONO BUS ASSIGN 5 10 0 5 10 20 30 15 MUTE G3-4 G1-2 L-R MONO BUS ASSIGN 5 10 0 5 10 20 30 15 MUTE G3-4 G1-2 L-R MONO BUS ASSIGN 5 10 0 5 10 20 30 15 MUTE G3-4 G1-2 L-R MONO BUS ASSIGN 5 10 0 5 10 20 30 15 MUTE G3-4 G1-2 L-R MONO BUS ASSIGN 5 10 0 5 10 20 30 15 MUTE G3-4 G1-2 L-R MONO BUS ASSIGN 5 10 0 5 10 20 30 15 G3-4 G1-2 L-R MONO 3 4 5 6 3 4 5 6 3 4 5 6 3 4 5 6 3 4 5 6 3 4 5 6 3 4 5 6 3 4 5 6 3 4 5 6 3 4 5 6 3 4 5 6 3 4 5 6 3 4 5 6 3 4 5 6 3 4 5 6 3 4 300 500500 1K 2K100 LINE INPUT ( MIC PAD ) LINE INPUT ( MIC PAD ) LINE INPUT ( MIC PAD ) LINE INPUT ( MIC PAD ) LINE INPUT ( MIC PAD ) LINE INPUT ( MIC PAD ) LINE INPUT ( MIC PAD ) LINE INPUT ( MIC PAD ) STR LINE IN ( MIC PAD ) STR LINE IN ( MIC PAD ) STR LINE IN ( MIC PAD ) STR LINE IN ( MIC PAD ) SUM INPUTS GAIN 20 10 40 50 70 30GAIN 20 10 40 50 70 30GAIN 20 10 40 50 70 30GAIN 20 10 40 50 70 30GAIN 20 10 40 50 70 30GAIN 20 10 40 50 70 30GAIN 20 10 40 50 70 30GAIN 20 10 40 50 70 30GAIN 20 10 40 50 70 30GAIN 20 10 40 50 70 30GAIN 20 10 40 50 70 30GAIN 20 15 40 50 60 30GAINGAINGAIN 20 15 40 50 60 30 20 15 40 50 60 30 20 15 40 50 60 30 LO CUTLO CUTLO CUTLO CUTLO CUTLO CUTLO CUTLO CUTLO CUTLO CUTLO CUT 5 10 0 5 10 20 30 15 RadioFans.CN 收音机爱 好者资料库 Group Out Aux Insert 1 2 3 4 Tape (Line) In Alt Out Monitor Out Press For Mic Level Aux Inserts 2dBu: Tip = Send Ring = Return Sleeve = Ground Main Insert Aux Out -XLR 1 3 5 1 3 5 Aux Outputs +4dBu: Ground Comp Pin 2 = Driven Pin 3 = GC Sense Pin 1 = Ground Tip = Driven Ring = GC Sense Sleeve = Ground R L R L Group Insert SOLO LINK IN Main Out 2 4 6 2 4 6 1 3 5 2 4 6 R L R L R L R L Main Outputs: Bal Line +4dBu or Bal Mic 25dBu Main Inserts: Tip = Send Ring = Return Sleeve = Ground OUT Use 5-Pin DIN cable to interconnect two Consoles Group Inserts 2dBu: Tip = Send Ring = Return Sleeve = Ground Outputs: RCA= Unbal 10dBV TRS= Ground Comp +4dBu Inputs: RCA= Unbal 10dBV TRS= Bal +4dBu Aux Out -TRS T= OUT + R= G COMP S= GND T= IN + R= IN S= GND 12 3 1= GND 2= OUT + 3= OUT 21 3 1= GND 2= IN + 3= IN XLR Female XLR Male 1/4” TRS Output 1/4” TRS Input Line Input +4dBu Bus In +4dBu Tape In +4dBu Direct Out Aux Out Group Out Alt Out Monitor Out Main Out +4dBu Main Out 25dBu Aux Out +4dBu Mic In 40dBu Bus In +4dBu T= Send R= Return S= GND 1/4” TRS Insert Chan Insert +4dBu Aux Insert 2dBu Group Insert 2dBu Main Inserts 2dBu All +4dBu T= OUT S= GND RCA Jack T= IN S= GND Alt Out Monitor Out All 10dBV Tape In Mono Left Right ON P O W E R AC IN 100-240V 50/60 Hz 80W X-RACK RACK-MOUNT MIXER NO USER SERVICABLE PARTS INSIDE. REFER SERVICING TO QUALIFIED SERVICE PERSONNEL AVIS : RISQUE DE CHOC LECTRIQUENE PAS OUVRIR ATTENTION! POUR VITER LE RISQUE DINCENDIE OU DE CHOC LECTRIQUE, NE PLACEZ PAS CET APPAREIL SOUS LA PLUIE OU LHUMIDIT CAUTION RISK OF ELECTRIC SHOCK DO NOT OPEN WARNING: TO REDUCE THE RISK OF FIRE OR ELECTRIC SHOCK, DO NOT EXPOSE THIS EQUIPMENT TO RAIN OR MOISTURE MOUNT IN RACK ONLY INSTALLER SUR SUPPORT DE MONTAGE SEULEMENT N484 Professional Audio Products Designed and Built in the USA Crest Audio Inc. Paramus, NJ 07652 USA UL CUS LISTED COMMERCIAL AUDIO SYSTEM 25E9 OPTIONS FITTED ( ): DEFAULT CHANNEL SETTINGS: Direct-Out(D-O) Is POST-FADER Aux Sends Are POST-FADER D-O Is PRE-FADER (POST-EQ) PRE-INSERT PRE-EQ When “PRE” Button Is Pressed, Aux Sends Switch To: 02 XR-20XR-24 When “PRE” Button Is Pressed, Auxes Switch To PRE-FADER(POST-EQ) G1 G2 +48V On Direct Out Chan Insert 1 Mic In L R Bal Line In +48V On Direct Out Chan Insert 2 Mic In +48V On Direct Out Chan Insert 3 Mic In +48V On Direct Out Chan Insert 4 Mic In +48V On Direct Out Chan Insert 5 Mic In +48V On Direct Out Chan Insert 6 Mic In +48V On Direct Out Chan Insert 7 Mic In +48V On Direct Out Chan Insert 8 Mic In +48V On Direct Out Chan Insert 9 Mic In +48V On Direct Out Chan Insert 10 Mic In +48V On Direct Out Chan Insert 11 Mic In +48V On Direct Out Chan Insert 12 Mic In 123456789101112 +48V On L R S1 L R S2 +48V On L R S3 +48V On L R S4 +48V On Bus In L R Mono Bus In G3 G4 Line In Line In Line In Line In Mic In L R Mic In L R Mic In L R Mic In +4dBu Bus Inputs: Bal In +4dBu Bal Line InBal Line InBal Line InBal Line InBal Line InBal Line InBal Line InBal Line InBal Line InBal Line InBal Line In Bal Line InBal Line InBal Line InBal Line In XR 20 RadioFans.CN 收音机爱 好者资料库 GRP3-4 MONOLEFT BAL MIC IN BAL LINE IN INPUT PREAMP GAIN 12 - 70 dB FOUR BAND EQ LEVEL LFLOW MIDHI MIDHF HPF LINE 27dB PAD PRE-SOURCE SELECT PRE SOURCE MUTE ? SOLO DC DIRECT OUT PAN +10 MONOL-RG1-2 MUTE INSERT SEND / RTN +48V ON EQ ON FADER AMP PRE-SOURCE BUFFER NO YES SOLO LEFT MAIN RIBBON CABLE - 34 WAY X-RACK MONO INPUT MODULE 12 OR 8 MONO INPUTS AVAILABLE INSERT SEND / RTN GROUP OUT X-RACK GROUPS (1 OF 4 SHOWN) GROUP MIX AMP HPF 70Hz -18dB/Oct FREQ INPUT SIGNAL LED PRE FADER POST FADER AUX SENDS 1 THRU 6 GROUP-TO-MAIN ASSIGN SWITCHES LEVELLEVELFREQLEVEL SOLO RIGHT G3-4 BUS ASSIGN SWITCHES LEFT BAL OUT 12 KHZ400 - 8 KHZ80 - 2 KHZ80 HZ X-RACK BLK DIA-REV1.1 - 5/08/01 PFL AFL SOLO TRIGGER CHAN FADER GC A1-2 PRE A3 A4 A3-4 PRE LEV 3 LEV 4 A5 A6 A5-6 PRE LEV 5 LEV 6 PRE FADER PRE EQ PRE INSERT DIRECT OUT SOURCE POST FADER PRE FADER REAR PANEL LEVEL 1-2 BAL MIC IN BAL LINE IN GAIN 15 - 65 dB FOUR BAND EQ - LEFT LEVEL LFLOW MIDHI MIDHF LINE 27dB PAD PRE SOURCE MUTE ? +10 MONOL-RG1-2 MUTE A1 +48V ON EQ ON FADER AMPS PRE-SOURCE BUFFERS NO YES SOLO LEFT X-RACK STEREO INPUT MODULE 4 OR 8 STEREO INPUTS AVAILABLE MONO FREQ POST FADER L & R A2 AUX SENDS 1 THRU 6 LEVELLEVELFREQLEVEL SOLO RIGHT G3-4 BUS ASSIGN SWITCHES 12 KHZ400 - 8 KHZ80 - 2 KHZ80 HZ PFL SOLO TRIGGER CHAN FADER A1-2 PRE A3 A4 A3-4 PRE LEV 3 LEV 4 PAN 1-2 PRE FADER PRE EQ REAR PANEL BAL MIC IN BAL LINE IN INPUT PREAMP 27dB PAD LFLOW MIDHI MIDHF 12 KHZ400 - 8 KHZ80 - 2 KHZ80 HZ FOUR BAND EQ - RIGHT BAL +10 A5 A6 A5-6 PRE LEV 5 LEV 6 PRE-SOURCE SELECT PRE FADER PRE EQ LEFT RIGHT LEFT RIGHT LEFT RIGHT LEFT RIGHT PRE FADER L & R PRE-AMP OUT L & R GC RIGHT +10 PEAK (AFL) SIG GROUP LED PRE FADER GROUP BUS IN TO GROUP MIX-AMP POST FADER GROUP FADER SOLO DC SOLO LEFT SOLO RIGHT ODD GROUPS FEED LEFT SOLO, EVENS FEED RIGHT SOLO AUX 1 OUT X-RACK AUX BUSES 1-2 (STEREO PAIR) AFL GC +10 SOLO DC SOLO LEFT SOLO RIGHT INSERT SEND / RTN AUX OUT X-RACK AUX BUSES 3 THRU 6 (1 OF 4 SHOWN) AUX MIX AMP AFL GC +10 AUX MASTER SOLO DC SOLO LEFT SOLO RIGHT INSERT SEND / RTN AUX MIX AMPS AUX 2 OUT GC AUX 1-2 MASTER +10 AUX 1 AUX 2 60MM 100MM 100MM PRE FADER POST FADER L & R MIXED LEFT RIGHT PRE EQ L & R MIXED L-INSERT SEND / RTN X-RACK MAIN OUT LEFT-RIGHT LEFT MIX AMP +10 PEAK SIG L / R SIGNAL LED RIGHT BUS IN L-POST FADER LEFT FADER 100MM L-PRE FADER RIGHT BAL OUT R-INSERT SEND / RTN RIGHT MIX AMP +10 R-POST FADER RIGHT FADER 100MM R-PRE FADER 30dB PAD MIC LEVEL 30dB PAD MIC LEVEL LEFT BUS IN MONO BAL OUT M-INSERT SEND / RTN X-RACK MAIN OUT MONO MONO MIX AMP +10 PEAK (AFL) SIG MONO SIGNAL LED M-POST FADER MONO FADER 100MM M-PRE FADER 30dB PAD MIC LEVEL MONO BUS IN SOLO DC SOLO LEFT SOLO RIGHT AFL PEAK (PFL) SIG TO PEAK CIRCUIT R G INPUT SIGNAL LED PEAK (PFL) SIG R G SOLO DC TO PEAK CIRCUIT G R G R G R +48V +48V GC ALT OUT GCGC LEVEL 1-2 A1 A2 PAN 1-2 ALT LEVEL GCGC LEFT PRE-FADER RIGHT PRE-FADER ADD MONO MONITOR OUT GCGC MONITOR LEVEL GCGC SUM MONO L R L R TAPE INAUX1-2MONOL - RGRP1-2 MONITOR SOURCE SELECT ( SELECTED SOURCES ADD TOGETHER ) SOLO FEED L - R SOLO OFF SOLO CTRL AUDIO SOURCES FOR MONITOR - ALL PRE-FADER TO PHONES HEADPHONE LEVEL L R SOLO FEED L - R SOLO OFF SOLO CTRL HEADPHONE AMPS FROM MONITOR TAPE IN LEFT OUT RIGHT OUT TAPE-IN L TAPE-IN R MON-L MON-R MON-L MON-R ADD MONO (RECESSED) MONO OUT MONO PRE TO ALT-OUT SOLO LEFT SOLO RIGHT SOLO MIX AMPS SOLO DC SOLO FEED L - R SOLO CTRL TO: PHONES, MONITOR & METERS SOLO CONTROL LOGIC +9 6 3 0 -3 6 9 12 15 18 21 24 SOLO FEED L - R SOLO CTRL SOLO ON PWR ON LEFT OUT RIGHT OUT LED METERS FOLLOW SOLO, NORMALLY SHOW L / R OUT TAPE-IN R TAPE-IN L TAPE IN LEFT TO: PHONES & MONITOR TAPE-IN LEVEL TAPE TO L/R AUX-1 BUS AUX-2 BUS LEFT BUS RIGHT BUS TAPE TO AUX 1-2 ON POWER AC IN 100-240V 50/60 Hz 80W X-RACK REAR PANEL: AC INLET & SWITCH UNIVERSAL INPUT-VOLTAGE SWITCHING POWER SUPPLY +17V -17V +12V +48V INTERNALLY FUSED AND SHORT-CIRCUIT PROTECTED TO POWER DISTRIBUTION RIBBONS ANALOG GROUND AUX DC GROUND SAFETY GROUND TO CHASSIS CHASSIS GROUND BNC CONNECTOR FOR 12VOLT LAMP ( ON FRONT PANEL ) SHORT-CIRCUIT PROTECTION POLY FUSES FOR MODELS: XR-20 : 12 MONO / 4 STEREO XR-24: 8 MONO / 8 STEREO GC P GAIN ROTARY POTPADLED AMPPANEL SWITCHFADER FET SWITCH BALANCED DRIVER ALL SWITCHES SHOWN IN THE UP (DESELECTED) POSITION AMP(LIFI