Infinity-IL60LR-spk-sm 维修电路原理图.pdf

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1、Interlude SeriesIL60 L/RPowered LoudspeakerService ManualInfinity Systems, Inc250 Crossways Park Dr.Woodbury, New York 11797REV 5 5/2005RadioFans.CN 收音机爱 好者资料库IL60 CONTENTS SPECIFICATIONS .3 DETAILED SPECIFICATIONS .4 CONTROLS and CONNECTIONS .6 OPERATION.10 BASS OPTIMIZATION SYSTEM.10 MECHANICAL PA

2、RTS LIST.12 EXPLODED VIEW .13 EXPLODED VIEW OF AMPLIFIER.14 SERVICE TIPS.15 TEST SET UP PROCEDURE.16 IL60 ADJUST BIAS PROCEDURE.17 SERVICE BULLETIN INF2000-04.18 SERVICE BULLETIN INF2001-04.19 TECH TIP INFTT2003-03.21 PACKAGING .22 PRINTED CIRCUIT BOARD DIAGRAMS.23 ELECTRICAL PARTS LIST (120v).27 IN

3、TEGRATED CIRCUIT DIAGRAMS 33 WIRING DIAGRAM CROSSOVER NETWORK SCHEMATIC.34 IL60 SCHEMATICS.35 2RadioFans.CN 收音机爱 好者资料库IL60 L/R3SpecificationsIL60 L/R Frequency Response: 28Hz - 22,000Hz (3dB)Recommended Amplifier Power Range 15-175 watts*Subwoofer Amplifier Output:500 watts (In to 8 from 20 Hz - 100

4、Hzwith no more than 0.1% THD)Sensitivity:89dB (2.83V 1 meter)Nominal Impedance:8Crossover Frequencies:150Hz; 500Hz,2800Hz, 24dB/octaveLow-Frequency Driver:12 C.M.M.D., magnetically shieldedMid-Bass Driver:6-1/2” C.M.M.D., magnetically shieldedMidrange Driver:4” C.M.M.D., magnetically shieldedHigh-Fr

5、equency Driver:1” C.M.M.D., magnetically shieldedDimensions (H x W x D):48 x 9-1/4 x 17-1/4(1219mm x 235mm x 438mm)Weight:75 lb (34kg)* The maximum recommended amplifier power rating will ensure proper system headroom to allowfor occasional peaks. We do not recommend sustained operation at these max

6、imum power levels.Detailed SpecificationsIL60 L/R4IL60 L/R5Detailed Specifications (Cont.)IL60 L/R6Controls and ConnectionsIL60 L/R7Controls and ConnectionsSPEAKEROUTPUTS+-+-SPEAKEROUTPUTS+-+-(ONE CHANNEL SHOWN)AMPLIFIER/RECEIVERLEFTRIGHTAMPLIFIER/RECEIVERSPEAKER OUTPUTS(ONE CHANNEL SHOWN)PREAMP OUT

7、PUTSAMPLIFIER INPUTSLRRLO+1. LOOSEN TERMINALS2. INSERT BARE END: TIGHTEN TERMINALS3. SET INPUT SUB TO LINE LEVEL4. SET LOW-PASS FILTER ONMETHOD 2NO STRIPE = -BLACK = -STRIPE= +RED = +O00354+00359-21. LOOSEN TERMINALS2. INSERT BARE END: TIGHTEN TERMINALS3. SET INPUT SUB TO SPEAKER4. SET LOW-PASS FILT

8、ER ONMETHOD 1NO STRIPE = -BLACK = -STRIPE= +RED = +AC CORDAC CORDThe Interlude IL50 and IL60 offer unprecedented flexibility for connecting thesystem to any type of audio or home-theater system. Consult the table at rightto determine which system description most closely matches your own, thenfollow

9、 the hook-up method corresponding to that system.If none of these system configurations seem to match yours, consult your dealeror Infinity customer service for direction on how best to hook up your system.For methods 2, 3a, 3b and 4, make sure all bass-management features areproperly set. The Audio

10、 channels should all be set to “Small” or “High-Pass”and the subwoofer set to “On.”2-Channel receiver or integrated amplifier1that has no subwoofer output orPre-out/Main-In connectors2-Channel receiver or integrated amplifier2with preamp output and input connectors2-Channel system with separate prea

11、mplifier2and power amplifierDolby* Pro Logic* with THX, Dolby Digital,3aor DTSreceiver with a filtered subwoofer(or LFE) output connectorDolby Digital or DTS processor with separate3bpower amplifiers or multichannel amplifierNon-THX certified Dolby Pro Logic receiver4with full-range subwoofer output

12、sSystem TypeConnectionMethods4343IL60 L/R8METHOD 3aNO STRIPE = -BLACK = -STRIPE= +RED = +O00354+O+STRIPE = +METHOD 3bBLACK = -NO STRIPE = -RED = +Controls and Connections (Cont.)4433IL60 L/R9Controls and Connections (Cont.)+-SUBWOOFEROUTPUTS(ONE CHANNEL SHOWN)RECEIVERSPEAKEROUTPUTSLRO+1. LOOSEN TERM

13、INALS2. INSERT BARE END: TIGHTEN TERMINALS3. SET INPUT SUB TO LINE LEVEL4. SET LOW-PASS FILTER TO ONMETHOD 4STRIPE = +NO STRIPE= -BLACK = -RED = +AC CORD00395-4Final PositioningAfter correctly connecting the loudspeaker andverifying that both the subwoofer and main sectionportions are playing, it is

14、 time to optimize thesystem for your particular listening room.Earlier, you placed the loudspeakers in their generallocation. Finding the exact location for optimumperformance sometimes only involves moving thespeakers a few inches in any direction. We urgeyou, therefore, to experiment with placemen

15、t untilyour speakers deliver their full potential. When thespeakers are moved inward (toward each other)there is generally better focus of instruments andvocalists; however, moving the speakers too closetogether can reduce the spaciousness of the stageeffect and you may need to experiment with thetr

16、ade-off between focus and imaging. If yourlistening room is larger than average and yourlistening position is relatively far from the speakers,wider placement of the speakers may be required.34IL60 L/R10Operation/Bass Optimization SystemTMIL60 L/R11Bass Optimization SystemTM (Cont.)NOTE:It is import

17、ant that you make the same adjustments to both loudspeakers.Set the Bass Optimization System Bandwidth adjustments to a middle position (10 clicks from afully clockwise position) and set Level adjustments for a 6dB (8 clicks from a fully clockwiseposition). Then,while the music is playing,sit in you

18、r favorite chair and have somebody else slowlyadjust the Frequency controls from fully clockwise to fully counter-clockwise. At a certainfrequency, you should hear the problem lessen and the overall bass performance improve. Whenyou are satisfied that you have found the best frequency, have your ass

19、istant vary the Levelsslowly up and down until you have maximized the improvement.If you have really keen ears, youcan also have the Bandwidth controls adjusted for maximum benefit.While the Bass Optimization System allows the listener to fine-tune the bass response to sound bestin a particular room

20、,some listeners dont have the skill or desire to adjust their system by ear. Inorder to facilitate quicker and more accurate results, Infinity has developed an optional test andmeasurement kit that allows the user to perform a series of measurements and aids him/her inproperly setting the Bass Optim

21、ization System controls. With the addition of this kit,the BassOptimization System becomes truly room-adaptive.The kit consists of the following:a test CD, a sound-level meter that is specifically calibrated for lowfrequencies, and something we call a “Q-Finder, ”a device to help find the width of t

22、he measuredcurve and, finally, a measurement template. It works as follows. The listener plays the tones fromthe test CD and records the relative output level of each test tone, using the sound-level meter, onthe provided measurement template. After all the tones are complete, the template contains

23、aresponse curve for the frequencies below 100Hz. The user simply notes the frequency of the largestbass peak,calculates the correct amount of attenuation,and uses the “Q-Finder” to determine thewidth of the curve. These three values are dialed into the Bass Optimization System controls locatedon the

24、 speaker.The entire process takes less than twenty minutes.If your dealer does not stock the Bass Optimization System test and measurement kit,you maypurchase it directly from Infinity. U.S. residents can visit our Web site at orcall 1-800-553-3332.Canadian residents should contact their dealer or c

25、all 1-800-567-3275.Ask for Infinity part number 335852-002.111091011IL60 L/R12Mechanical Parts ListIL60 Complete Amplifier AssyN/AGrille Set (one Upper and one Woofer):Grille, Black, Left336440-072Grille, Black, Right336440-071Grille, Midnight Blue, Left336440-052Grille, Midnight Blue, Right336440-0

26、51Grille, Rich Burgundy, Left336440-062Grille, Rich Burgundy, Right336440-061Grille, Gray, Left336440-042Grille, Gray, Right336440-041Mid-Bass, 6-1/2” C.M.M.D., shielded, 4.5 ohms10%335741-001Midrange, 4” C.M.M.D., shielded, 4.6 ohms10%335812-002Woofer, 12”, C.M.M.D., shielded, 3.4 ohms10%336056-001

27、Tweeter, 1”, C.M.M.D., shielded, 3.5 ohms10%335225-002Volume Control Assembly (Left)336250-002Volume Control Assembly (Right)336250-001Passive Crossover Network336500-001Port Tube336799-001Pedestal336255-001Cup, Grille, (12)333249-003Baffle, Front, Left336442-002Baffle, Front, Right336442-001Bump-On

28、, Foot (8)330104-001Midrange Cup335809-001Trim Ring, Woofer336259-001PACKAGINGOwners Manual, IL50,60335832-001Grille Option Literature336503-002Grille AssemblySee Options AbovePad, End, Bottom/L336488-003Pad, End, Bottom/R336488-002Pad, End, Top336488-001Protective Corners (4)335692-003Outer Carton3

29、36489-001Survey Card330033-001Warranty Card335841-001Spike Foot Set331360-001Power cord 120v US (15)336658-115RABOS screwdriver w/bag335848-002IL60 L/R13GRILLE, BLACK, LEFT 336440-072GRILLE, BLACK, RIGHT 336440-071GRILLE, MIDNIGHT BLUE, LEFT 336440-052GRILLE, MIDNIGHT BLUE, RIGHT 336440-051GRILLE, R

30、ICH BURGUNDY, LEFT 336440-062GRILLE, RICH BURGUNDY, RIGHT 336440-061GRILLE, WARM PLATINUM, LEFT 336440-042GRILLE, WARM PLATINUM, RIGHT 336440-041GRILLE, WOOFER,Part of Set - SeeUpper Grille OptionsGRILLE CUP, (3)333249-003GRILLE CUP, (8)333249-003GRILLE CUP, (1)333249-003SCREW, (3)#8 x 1 PPH, BLK900

31、101-016SCREW, (3)#8 x.75 PPH BLK900101-012SCREW, (12)#8 x.75 PPH BLK900101-012SCREW, (4)#8 x.75 PPH BLK900101-012SCREW, (6)#6 x .75 PPH BLK903401-012SCREW, (4)#4-24x .375 PPH BLK907801-006SPIKE (2)331360-001BUMP-ON (8)330104-001PEDESTAL,336255-001PORT TUBE,336799-001(ROTATED)VOLUME CONTROL ASSY w/CA

32、BLE,336250-001,R336250-002,LAMPLIFIER,NOT FOR SALEMIDRANGETRANSDUCER,335812-002MIDBASETRANSDUCER335741-001ISOLATIONCUP335809-001TWEETER,335225-002BAFFLE,336442-001, R336442-002, LWOOFER,336056-001TRIMRING,336259-00100415SCREW, (8)#6 x .75 PPH BLK903401-012SCREW, (4)#6 x .75 PPH BLK903401-012SCREW, (

33、10)#8 x .75 PPH BLK900101-012CABINETNOT FOR SALECROSSOVERNETWORK336500-001Exploded ViewIL60 L/R14LINEARBOARDFEATUREBOARDRABOSBOARDPOWERSUPPLYBOARDNETWORK,336500-001RCA SINGLEPC MT (2)(JC0091)SWITCH,SPDT TOGGLE(SR0007)PAIR BINDINGPOSTS GOLD(JC0104)FUSE HOLDERPANEL MT SEALED(FH0012)FUSE, 4A 250V1.25X.

34、25 SLO-BLO(FS0026)AC (120V)IEC SOCKET(JC0129)SWITCH,ROCKER POWER(SR0032)FRONT VIEW00420EMIBOARDExploded View of AmplifierIL60 L/R15Service TipsIL60 L/R16Test Set Up and ProcedureSYSTEM AURAL SWEEP TESTEquipment needed: Function/signal generator/sweep generator Integrated Amplifier Multimeter Speaker

35、 cablesGeneral Unit Function (UUT = Unit Under Test)Switches on the amplifier faceplate:Sub Input to “Line Level”Low Pass Filter to OFFBass Optimization system to OFF1.From the signal generator, connect one line level (RCA) cable to the IL60 Line Level Input jack on the UUT.2.On the front of the uni

36、t, turn the LEVEL control full counterclockwise (1).3.Turn on generator, adjust to 100mV, 40 Hz.4.Plug in UUT; turn the power switch ON. LED should be Red. Turn LEVEL control full clockwise (10).5.LED should now be Green; immediate bass response should be heard and felt from rear port tube opening.6

37、.Turn off generator, turn LEVEL control fully counterclockwise (1), disconnect RCA cable.7.Connect one pair of speaker cables to Speaker Level input terminal on UUT. Cables should be connected toan integrated amplifier fed by the signal generator.8.Switch Sub Input on the amplifier faceplate to “Spe

38、aker”.9.Turn on generator and adjust so that speaker level input at the amplifier is 1.5V, 50 Hz. Turn LEVEL controlfull clockwise (10).10. Green LED should light, immediate bass response should be heard and felt from the port tube opening.Sweep Function1.Follow steps 7-10 above, using a sweep gener

39、ator as a signal source.2.Sweep generator from 20Hz to 20kHz. Listen to the cabinet and drivers for any rattles, clicks, buzzes or anyother noises. If any unusual noises are heard, remove woofer and test.Driver Function (Woofer)1.Remove woofer from cabinet; detach + and - wire clips.2.Check DC resis

40、tance of woofer; it should be 3.4 ohms 10%.3.Connect a pair of speaker cables to driver terminals. Cables should be connected to an integrated amplifierfed by a signal generator. Turn on generator and adjust so that speaker level output is 5.0V.4.Sweep generator from 20Hz to 1kHz. Listen to driver f

41、or any rubbing, buzzing, or other unusual noises.SIGNALGENERATORAMPLIFIERAC VOLTMETER (10V)IL60UNDER TESTOUTPUT FROM GENERATOR/AMPLIFIERO+00345IL60 ADJUST BIAS PROCEDURE(Mandatory when any output MOSFET transistors Q3,4,7,8 are replaced)1. Amplifier should be unplugged and OFF.2. Remove Amp assembly

42、 from cabinet; remove rear plastic cover if present. All wires exitingthe cover can remain connected unless they will prevent you from removing the amplifier oraccessing potentiometers on the Linear board PCB in the following steps.3. Locate the Linear board assembly (PCB with the output transistors

43、)4. Adjust R11 and R27 fully Counter Clockwise. See diagram below.5. Apply 120 VAC power to unit, Turn power switch ON.6. Verify LED illuminates on the front gain control dial unless you have disconnected the plug.7. Connect voltmeter set to DC millivolt range to twin pins on terminal J7, on Linear

44、board8. Verify initial voltage is less then 0.1 mV.9. Adjust R11 Clockwise until voltmeter reads 0.3 mV + the initial current from step #8.10. Adjust R27 Clockwise until voltmeter now reads 0.6 mV + the initial current from step #8.11. Turn amplifier OFF. Disconnect AC power to unit.12. Remove voltm

45、eter from terminal J7.13. Replace cover (if present), wires if disconnected, and replace amplifier back into cabinet. IL60IL60 17 Service Bulletin Service Bulletin INF2000-04 - December 2000 Warranty labor rate: MINOR repair To: All Infinity Service Centers Model: Interlude IL60 Subject: Air Leak or

46、 Buzzing from Front Baffle Some early versions of the Interlude IL60 loudspeaker may need an additonal gasket surrounding the tweeter. The original gasket is located behind and is affixed to the front baffle. In the event you receive an Interlude IL60 loudspeaker with the complaint: “There is buzzin

47、g or an air leak coming from the upper part of the front baffle”, perform the following modification: 1) Remove the loudspeaker grille. 2) Extract the (8) grille cups from their cavities with a needle-nosed pliers or similar tool. 3) Remove the (8) Phillips screws holding the front baffle to the cab

48、inet 4) Remove the front baffle; unplug the two faston connections to the tweeter terminals. 5) Apply a new rectangular gasket, Infinity part# 336050-003, on top of the present gasket, surrounding the tweeter. Final gasket(s) height should rise above the plastic “ledge” surrounding the tweeter. 6) P

49、lug both faston connections back on the tweeter terminals. 7) Replace the front baffle, Phillips screws, grille cups, and front grille. IL60IL60 18 Service Bulletin Service Bulletin INF2001-04 Rev2 May 2005 Warranty labor rate: MINOR repair To: All Infinity Service Centers Model: Interlude and Inter

50、mezzo IL50, IL60, IL100s, IL120s, IM1.2s, IM4.1t Subject: No Output In the event you receive an Interlude or Intermezzo loudspeaker with the complaint: “There is no output, and the LED on the volume control does not light, red or green”, check the item listed below: 1) Check the line fuse to make su