Infinity-IRSV-sub-sm 维修电路原理图.pdf

IRSV SYSTEMSERVICE MANUALInfinity Systems Incorporated250 Crossways Park Dr.Woodbury, New York 11797Rev0 5/2002RadioFans.CN 收音机爱 好者资料库- CONTENTS -SPECIFICATIONS .2FEATURES.3IMPEDANCE MATCHING. .5SET-UP GUIDE.7OPERATION.14ADJUSTMENTS/CONTROLS. .15SERVICE SETTINGS/ADJUSTMENTS/TIPS19MECHANICAL PARTS LIST . .20PASSIVE CROSSOVER SCHEMATIC.21PASSIVE CROSSOVER WIRING.22SYSTEM WIRING DIAGRAM.23ELECTRONIC CROSSOVER SCHEMATIC.24BASS AMPLIFIER SCHEMATIC .25RadioFans.CN 收音机爱 好者资料库1IRSV SYSTEM SPECIFICATIONSLow Frequency(6) 12” IMG (4 ohm DCR) per tower wired in parallelMidrange Frequency(12) Emims per mid-twt panelHigh Frequency(24) Emits (Front) per mid-twt panel(12) Emits (Rear) per mid-twt panelNominal Impedance 4 ohms (per mid-twt panel)DCR of Woofer Tower0.66 ohmsFinishRosewood or BlackDimensions:Woofer tower20 x 28 3/8 x 90” (52.7 x 73 x 228cm)Mid/twt Panel47 x 17 x 90” (119 x 43 x 228cm)Base Footprint38 x 12” (96.5 x 30.5cm)Weight (System)1500 lbs. (681 kg)Special FeaturesMonster CableARC wireSolen capacitorsWonder capacitorsFrequency response15Hz 45kHz ?2 dBCrossover Frequencies70Hz (Variable)4500 HzCrossover ControlsTweeter and Upper Midrange LevelMid/Twt Amplifier Requirements100-500 watts/ch RMSBass Amplifier Power2000 watts/ch RMSProduction HistoryIntroduced in 1987Discontinued in 1996Retail price 1996$60,000.0023456789101112131415161718Service Settings/Adjustments/TipsIRSV Amplifier (120v) A036-3089 or (240v) A036-3096Potentiometer Settings (Nominal)Most versions have small arrows in the slot of eachpotentiometer. See illustration for direction ofarrows for Nominal Setting. Bottom pot shouldalways be maximum CW.IRS amplifier output can be “trimmed” in relation toeach other by powering system up with amp coverremoved, attaching DMM to main amp terminalsand comparing output voltage, driving with 50Hzsignal to achieve approx. 5.0 volts at main ampterminals. If amp voltages are not equal on bothtowers, carefully adjust (raise/lower) CenterACCELERATION/FEEDBACK pot on one unit untilthey are.Connect an AC voltmeter to these test points toassure high speed of cooling fan is working.With AC meter attached to these points with COLDsystem, voltage should be less than 100v. Drivesystem at 20-30Hz either into woofer tower load or1-2 ohm 500 watt resistor bank on bench atreasonably high power. When system heatssufficiently, warp switch should audibly trip andraise voltage to over 100v.With AC ammeter on 120v power cord, nominal ACcurrent should = 0.40A with no signal input.If not adjust at indicated test point.Line Fuse ratings120v = 12 amps slo-blo240v = 8 amps slo-bloControl Woofer is the third woofer from the bottomin the tower19IRSV MECHANICAL PARTS LISTMODEL: IRS V(IF970400)NLA = No Longer AvailableCABINETS/WINGS/BASES/TOP PIECESNLAFRONT GRILLESNLACONTROL CABLE (2)NLAAMPLIFIER 120V (2)A036-3089AMPLIFIER 220V (2)A036-3096 (Currently NLA)ELECTRONIC CROSSOVER UNITA048-3088TWEETER - EMIT902-3721 (Currently NLA)MIDRANGE - EMIM902-0012D (Currently NLA)12 WOOFER (10)902-3102CONTROL WOOFER 12 (2)A028-3103 (Currently NLA)DIAPHRAGM ONLY - TWEETER751-3722 (Currently NLA)DIAPHRAGM ONLY - MIDRANGE751-3806 (Currently NLA)PASSIVE CROSSOVER ASSEMBLY (2)NLA (SEE DRAWING FOR PARTNUMBERS OF COMPONENTS)RCA SIGNAL CABLE639-3199OWNERS MANUAL930-309520PARALLEL2122232425