Infinity-IL60LR-spk-sm 电路图 维修手册.pdf

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1、Interlude Series IL60 L/R Powered Loudspeaker Service Manual Infinity Systems, Inc 250 Crossways Park Dr. Woodbury, New York 11797 REV 5 5/2005 RadioFans.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 MECH

2、ANICAL PARTS 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 (12

3、0v).27 INTEGRATED CIRCUIT DIAGRAMS 33 WIRING DIAGRAM CROSSOVER NETWORK SCHEMATIC.34 IL60 SCHEMATICS.35 2 RadioFans.CN 收音机爱 好者资料库 IL60 L/R 3 Specifications IL60 L/R Frequency Response: 28Hz - 22,000Hz (3dB) Recommended Amplifier Power Range 15-175 watts* Subwoofer Amplifier Output:500 watts (In to 8

4、from 20 Hz - 100Hz with no more than 0.1% THD) Sensitivity:89dB (2.83V 1 meter) Nominal Impedance:8 Crossover Frequencies:150Hz; 500Hz,2800Hz, 24dB/octave Low-Frequency Driver:12 C.M.M.D., magnetically shielded Mid-Bass Driver:6-1/2” C.M.M.D., magnetically shielded Midrange Driver:4” C.M.M.D., magne

5、tically shielded High-Frequency Driver:1” C.M.M.D., magnetically shielded Dimensions (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 allow for occasional peaks. We do not recommend sus

6、tained operation at these maximum power levels. RadioFans.CN 收音机爱 好者资料库 Detailed Specifications IL60 L/R 4 IL60 L/R 5 Detailed Specifications (Cont.) IL60 L/R 6 Controls and Connections IL60 L/R 7 Controls and Connections SPEAKER OUTPUTS +-+- SPEAKER OUTPUTS +-+- (ONE CHANNEL SHOWN) AMPLIFIER/RECEIV

7、ER LEFTRIGHT AMPLIFIER/RECEIVER SPEAKER OUTPUTS (ONE CHANNEL SHOWN) PREAMP OUTPUTSAMPLIFIER INPUTS L RR L O + 1. LOOSEN TERMINALS 2. INSERT BARE END: TIGHTEN TERMINALS 3. SET INPUT SUB TO LINE LEVEL 4. SET LOW-PASS FILTER ON METHOD 2 NO STRIPE = - BLACK = - STRIPE= + RED = + O 00354 + 00359-2 1. LOO

8、SEN TERMINALS 2. INSERT BARE END: TIGHTEN TERMINALS 3. SET INPUT SUB TO SPEAKER 4. SET LOW-PASS FILTER ON METHOD 1 NO STRIPE = - BLACK = - STRIPE= + RED = + AC CORD AC CORD The Interlude IL50 and IL60 offer unprecedented flexibility for connecting the system to any type of audio or home-theater syst

9、em. Consult the table at right to determine which system description most closely matches your own, then follow the hook-up method corresponding to that system. If none of these system configurations seem to match yours, consult your dealer or Infinity customer service for direction on how best to h

10、ook up your system. For methods 2, 3a, 3b and 4, make sure all bass-management features are properly set. The Audio channels should all be set to “Small” or “High-Pass” and the subwoofer set to “On.” 2-Channel receiver or integrated amplifier1 that has no subwoofer output or Pre-out/Main-In connecto

11、rs 2-Channel receiver or integrated amplifier2 with preamp output and input connectors 2-Channel system with separate preamplifier2 and power amplifier Dolby* Pro Logic* with THX, Dolby Digital,3a or DTSreceiver with a filtered subwoofer (or LFE) output connector Dolby Digital or DTS processor with

12、separate3b power amplifiers or multichannel amplifier Non-THX certified Dolby Pro Logic receiver4 with full-range subwoofer outputs System TypeConnection Methods 4 3 4 3 IL60 L/R 8 METHOD 3a NO STRIPE = - BLACK = - STRIPE= + RED = + O 00354 + O + STRIPE = + METHOD 3b BLACK = - NO STRIPE = - RED = +

13、Controls and Connections (Cont.) 4 4 3 3 IL60 L/R 9 Controls and Connections (Cont.) +- SUBWOOFER OUTPUTS (ONE CHANNEL SHOWN) RECEIVER SPEAKER OUTPUTS L R O + 1. LOOSEN TERMINALS 2. INSERT BARE END: TIGHTEN TERMINALS 3. SET INPUT SUB TO LINE LEVEL 4. SET LOW-PASS FILTER TO ON METHOD 4 STRIPE = + NO

14、STRIPE= - BLACK = - RED = + AC CORD 00395-4 Final Positioning After correctly connecting the loudspeaker and verifying that both the subwoofer and main section portions are playing, it is time to optimize the system for your particular listening room. Earlier, you placed the loudspeakers in their ge

15、neral location. Finding the exact location for optimum performance sometimes only involves moving the speakers a few inches in any direction. We urge you, therefore, to experiment with placement until your speakers deliver their full potential. When the speakers are moved inward (toward each other)

16、there is generally better focus of instruments and vocalists; however, moving the speakers too close together can reduce the spaciousness of the stage effect and you may need to experiment with the trade-off between focus and imaging. If your listening room is larger than average and your listening

17、position is relatively far from the speakers, wider placement of the speakers may be required. 3 4 IL60 L/R 10 Operation/Bass Optimization SystemTM IL60 L/R 11 Bass Optimization SystemTM (Cont.) NOTE:It is important that you make the same adjustments to both loudspeakers. Set the Bass Optimization S

18、ystem Bandwidth adjustments to a middle position (10 clicks from a fully clockwise position) and set Level adjustments for a 6dB (8 clicks from a fully clockwise position). Then,while the music is playing,sit in your favorite chair and have somebody else slowly adjust the Frequency controls from ful

19、ly clockwise to fully counter-clockwise. At a certain frequency, you should hear the problem lessen and the overall bass performance improve. When you are satisfied that you have found the best frequency, have your assistant vary the Levels slowly up and down until you have maximized the improvement

20、.If you have really keen ears, you can 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 best in a particular room,some listeners dont have the skill or desire to adjust their system by ear. I

21、n order to facilitate quicker and more accurate results, Infinity has developed an optional test and measurement kit that allows the user to perform a series of measurements and aids him/her in properly setting the Bass Optimization System controls. With the addition of this kit,the Bass Optimizatio

22、n System becomes truly room-adaptive. The kit consists of the following:a test CD, a sound-level meter that is specifically calibrated for low frequencies, and something we call a “Q-Finder, ”a device to help find the width of the measured curve and, finally, a measurement template. It works as foll

23、ows. The listener plays the tones from the test CD and records the relative output level of each test tone, using the sound-level meter, on the provided measurement template. After all the tones are complete, the template contains a response curve for the frequencies below 100Hz. The user simply not

24、es the frequency of the largest bass peak,calculates the correct amount of attenuation,and uses the “Q-Finder” to determine the width of the curve. These three values are dialed into the Bass Optimization System controls located on the speaker.The entire process takes less than twenty minutes. If yo

25、ur dealer does not stock the Bass Optimization System test and measurement kit,you may purchase it directly from Infinity. U.S. residents can visit our Web site at or call 1-800-553-3332.Canadian residents should contact their dealer or call 1-800-567-3275. Ask for Infinity part number 335852-002. 1

26、1 10 9 10 11 IL60 L/R 12 Mechanical Parts List IL60 Complete Amplifier AssyN/A Grille Set (one Upper and one Woofer): Grille, Black, Left336440-072 Grille, Black, Right336440-071 Grille, Midnight Blue, Left336440-052 Grille, Midnight Blue, Right336440-051 Grille, Rich Burgundy, Left336440-062 Grille

27、, Rich Burgundy, Right336440-061 Grille, Gray, Left336440-042 Grille, Gray, Right336440-041 Mid-Bass, 6-1/2” C.M.M.D., shielded, 4.5 ohms10%335741-001 Midrange, 4” C.M.M.D., shielded, 4.6 ohms10%335812-002 Woofer, 12”, C.M.M.D., shielded, 3.4 ohms10%336056-001 Tweeter, 1”, C.M.M.D., shielded, 3.5 oh

28、ms10%335225-002 Volume Control Assembly (Left)336250-002 Volume Control Assembly (Right)336250-001 Passive Crossover Network336500-001 Port Tube336799-001 Pedestal336255-001 Cup, Grille, (12)333249-003 Baffle, Front, Left336442-002 Baffle, Front, Right336442-001 Bump-On, Foot (8)330104-001 Midrange

29、Cup335809-001 Trim Ring, Woofer336259-001 PACKAGING Owners Manual, IL50,60335832-001 Grille Option Literature336503-002 Grille AssemblySee Options Above Pad, End, Bottom/L336488-003 Pad, End, Bottom/R336488-002 Pad, End, Top336488-001 Protective Corners (4)335692-003 Outer Carton336489-001 Survey Ca

30、rd330033-001 Warranty Card335841-001 Spike Foot Set331360-001 Power cord 120v US (15)336658-115 RABOS screwdriver w/bag335848-002 IL60 L/R 13 GRILLE, BLACK, LEFT 336440-072 GRILLE, BLACK, RIGHT 336440-071 GRILLE, MIDNIGHT BLUE, LEFT 336440-052 GRILLE, MIDNIGHT BLUE, RIGHT 336440-051 GRILLE, RICH BUR

31、GUNDY, LEFT 336440-062 GRILLE, RICH BURGUNDY, RIGHT 336440-061 GRILLE, WARM PLATINUM, LEFT 336440-042 GRILLE, WARM PLATINUM, RIGHT 336440-041 GRILLE, WOOFER, Part of Set - See Upper Grille Options GRILLE CUP, (3) 333249-003 GRILLE CUP, (8) 333249-003 GRILLE CUP, (1) 333249-003 SCREW, (3) #8 x 1 PPH,

32、 BLK 900101-016 SCREW, (3) #8 x.75 PPH BLK 900101-012 SCREW, (12) #8 x.75 PPH BLK 900101-012 SCREW, (4) #8 x.75 PPH BLK 900101-012 SCREW, (6) #6 x .75 PPH BLK 903401-012 SCREW, (4) #4-24x .375 PPH BLK 907801-006 SPIKE (2) 331360-001 BUMP-ON (8) 330104-001 PEDESTAL, 336255-001 PORT TUBE, 336799-001 (

33、ROTATED) VOLUME CONTROL ASSY w/CABLE, 336250-001,R 336250-002,L AMPLIFIER, NOT FOR SALE MIDRANGE TRANSDUCER, 335812-002 MIDBASE TRANSDUCER 335741-001 ISOLATION CUP 335809-001 TWEETER, 335225-002 BAFFLE, 336442-001, R 336442-002, L WOOFER, 336056-001 TRIM RING, 336259-001 00415 SCREW, (8) #6 x .75 PP

34、H BLK 903401-012 SCREW, (4) #6 x .75 PPH BLK 903401-012 SCREW, (10) #8 x .75 PPH BLK 900101-012 CABINET NOT FOR SALE CROSSOVER NETWORK 336500-001 Exploded View IL60 L/R 14 LINEAR BOARD FEATURE BOARD RABOS BOARD POWER SUPPLY BOARD NETWORK, 336500-001 RCA SINGLE PC MT (2) (JC0091) SWITCH, SPDT TOGGLE

35、(SR0007) PAIR BINDING POSTS GOLD (JC0104) FUSE HOLDER PANEL MT SEALED (FH0012) FUSE, 4A 250V 1.25X.25 SLO-BLO (FS0026) AC (120V) IEC SOCKET (JC0129) SWITCH, ROCKER POWER (SR0032) FRONT VIEW 00420 EMI BOARD Exploded View of Amplifier IL60 L/R 15 Service Tips IL60 L/R 16 Test Set Up and Procedure SYST

36、EM AURAL SWEEP TEST Equipment needed: Function/signal generator/sweep generator Integrated Amplifier Multimeter Speaker cables General Unit Function (UUT = Unit Under Test) Switches on the amplifier faceplate: Sub Input to “Line Level” Low Pass Filter to OFF Bass Optimization system to OFF 1.From th

37、e signal generator, connect one line level (RCA) cable to the IL60 Line Level Input jack on the UUT. 2.On the front of the unit, 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 contr

38、ol full clockwise (10). 5.LED should now be Green; immediate bass response should be heard and felt from rear port tube opening. 6.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. Cab

39、les should be connected to an integrated amplifier fed by the signal generator. 8.Switch Sub Input on the amplifier faceplate to “Speaker”. 9.Turn on generator and adjust so that speaker level input at the amplifier is 1.5V, 50 Hz. Turn LEVEL control full clockwise (10). 10. Green LED should light,

40、immediate bass response should be heard and felt from the port tube opening. Sweep Function 1.Follow steps 7-10 above, using a sweep generator as a signal source. 2.Sweep generator from 20Hz to 20kHz. Listen to the cabinet and drivers for any rattles, clicks, buzzes or any other noises. If any unusu

41、al noises are heard, remove woofer and test. Driver Function (Woofer) 1.Remove woofer from cabinet; detach + and - wire clips. 2.Check DC resistance 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 amplifier fed

42、 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 for any rubbing, buzzing, or other unusual noises. SIGNAL GENERATOR AMPLIFIER AC VOLT METER (10V) IL60 UNDER TEST OUTPUT FROM GENERATOR/AMPLIFIER O + 00345

43、 IL60 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 from cabinet; remove rear plastic cover if present. All wires exiting the cover can remain connected unless they will prevent you from rem

44、oving the amplifier or accessing potentiometers on the Linear board PCB in the following steps. 3. Locate the Linear board assembly (PCB with the output transistors) 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

45、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 board 8. Verify initial voltage is less then 0.1 mV. 9. Adjust R11 Clockwise until voltmeter reads 0.3 mV + the initial current from

46、 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 voltmeter from terminal J7. 13. Replace cover (if present), wires if disconnected, and replace amplifier back into cabinet. IL60IL60

47、 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 Buzzing from Front Baffle Some early versions of the Interlude IL60 loudspeaker may need an additonal gasket surrounding the

48、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 buzzing or an air leak coming from the upper part of the front baffle”, perform the following modification: 1) Remove the loudspeake

49、r 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 cabinet 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” su