Interlude Series IL60 L/R Powered Loudspeaker Service Manual Infinity Systems, Inc 250 Crossways Park Dr.
IL60 CONTENTS SPECIFICATIONS …….……………………………………………….3 DETAILED SPECIFICATIONS …………………….…………………4 CONTROLS and CONNECTIONS …………………….….…………6 OPERATION……………………………………..………..…….……..10 BASS OPTIMIZATION SYSTEM……………………….….…………10 MECHANICAL 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…….…………….….
IL60 L/R Specifications IL60 L/R Frequency Response: 28Hz - 22,000Hz (±3dB) Recommended Amplifier Power Range 15-175 watts* Subwoofer Amplifier Output: 500 watts (In to 8Ω from 20 Hz - 100Hz with no more than 0.1% THD) Sensitivity: 89dB (2.83V @ 1 meter) Nominal Impedance: 8Ω 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.
IL60 L/R Detailed Specifications 4
IL60 L/R Detailed Specifications (Cont.
IL60 L/R Controls and Connections 6
IL60 L/R Controls and Connections System Type The Interlude IL50 and IL60 offer unprecedented flexibility for connecting the system to any type of audio or home-theater system. 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 hook up your system.
IL60 L/R Controls and Connections (Cont.
IL60 L/R Controls and Connections (Cont.) RED = + METHOD 4 BLACK = 1. LOOSEN TERMINALS 2. INSERT BARE END: TIGHTEN TERMINALS (ONE CHANNEL SHOWN) 3. SET INPUT SUB 3 TO "LINE LEVEL" RECEIVER STRIPE = + 4. SET LOW-PASS FILTER TO "ON" 4 SUBWOOFER OUTPUTS L NO STRIPE= - SPEAKER OUTPUTS + R 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.
IL60 L/R Operation/Bass Optimization SystemTM 10
IL60 L/R Bass Optimization SystemTM (Cont.) NOTE:It is important that you make the same adjustments to both loudspeakers. Set the Bass Optimization System Bandwidth adjustments 11 to a middle position (10 clicks from a fully clockwise position) and set Level adjustments 10 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 9 from fully clockwise to fully counter-clockwise.
IL60 L/R Mechanical Parts List IL60 Complete Amplifier Ass’y N/A Grille Set (one Upper and one Woofer): Grille, Black, Left Grille, Black, Right Grille, Midnight Blue, Left Grille, Midnight Blue, Right Grille, Rich Burgundy, Left Grille, Rich Burgundy, Right Grille, Gray, Left Grille, Gray, Right Mid-Bass, 6-1/2” C.M.M.D., shielded, 4.5 ohms±10% Midrange, 4” C.M.M.D., shielded, 4.6 ohms±10% Woofer, 12”, C.M.M.D., shielded, 3.4 ohms±10% Tweeter, 1”, C.M.M.D., shielded, 3.
IL60 L/R Exploded View SCREW, (12) #8 x.75" PPH BLK 900101-012 SCREW, (4) #6 x .75" PPH BLK 903401-012 PORT TUBE, 336799-001 CABINET NOT FOR SALE VOLUME CONTROL ASS'Y w/CABLE, 336250-001,R 336250-002,L (ROTATED) ISOLATION CUP 335809-001 AMPLIFIER, NOT FOR SALE SCREW, (4) #8 x.75" PPH BLK 900101-012 MIDRANGE TRANSDUCER, 335812-002 SCREW, (4) #4-24"x .
IL60 L/R Exploded View of Amplifier FEATURE BOARD LINEAR BOARD RABOS BOARD NETWORK, 336500-001 00420 POWER SUPPLY BOARD EMI BOARD SWITCH, SPDT TOGGLE (SR0007) RCA SINGLE PC MT (2) (JC0091) PAIR BINDING POSTS GOLD (JC0104) FUSE HOLDER PANEL MT SEALED (FH0012) AC (120V) IEC SOCKET (JC0129) FUSE, 4A 250V 1.25X.
IL60 L/R Service Tips 15
IL60 L/R Test Set Up and Procedure SIGNAL GENERATOR AC VOLT METER (10V) IL60 UNDER TEST + ® AMPLIFIER OUTPUT FROM GENERATOR/AMPLIFIER 00345 O SYSTEM 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.
IL60 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 removing 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.
IL60 Service Bulletin Service Bulletin INF2000-04 - December 2000 To: Warranty labor rate: MINOR repair 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 tweeter. The original gasket is located behind and is affixed to the front baffle.
IL60 Service Bulletin Service Bulletin INF2001-04 Rev2 – May 2005 To: Warranty labor rate: MINOR repair All Infinity Service Centers Model: Interlude and Intermezzo 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 sure it’s not damaged.
IL60 8) Connect the subwoofer amplifier to an AC power source; turn the unit ON. Measure the DC voltage at the “CD±” wires; it should be 10-20 volts. 9) If it is 25 volts or greater, turn the amplifier OFF, disconnect from the power source, and replace: IL120S, IL60: Q504,Q507 IRF640 on the Power Supply PCB, Infinity part# QM0015. IL50, IL100s: Q1 IRF540 on the Power Supply PCB, Infinity part# QM0020.
IL60 TECH TIPS Troubleshooting tips and solutions to common service problems For models: IL50, IL100s, MSW-1, IL60, IL120s, IM2.6, IM3.5c TIP# INFTT2003-03 Intermezzo, Interlude and Modulus MSW-1 Power Supply Repair Recommended for instances where the PCB has been damaged, for the above models only: 1) Change all MOSFETS, even for one device failure. 2) Clean and repair the PC board if required (See Tech Tip HCG2002-01 - Damaged Printed Circuit Boards).
IL60 Packaging 22
IL60 Volume Left/Right Boards 23
IL60 IL60 L/R EMI FILTER/RABOS PCBs 24
IL60 IL 500W Linear/Feature Boards 25
IL60 500W HC BASH Power Supply (120V/230V Selectable) 26
IL60 IL60 Electrical Parts List Part# Reference Designator Qty Description Feature PCB Assembly SEMICONDUCTORS DS0001 QM0035 UA0003 UA0009 UA0010 DZ0014 DZ0002 D9,D100,D101,D102,D103, D104,D105,D200,D201 Q5 U5,U6 U1,U2 U7 Z100 Z200 9 RECT, 100mA 75V SIGNAL 1N4148T 1 2 2 1 1 1 JFET, N-CH J111 TO92 TR OPAMP, QUAD 14PIN DIL LM324N OPAMP, QUAD 14P DIL TL074/084 OPAMP, DUAL 8PIN DIL TL082 ZENER, 500MW 14V 5% 1N5244B ZENER, 500mW 12V 5% 1N5242B 1 1 6 1 1 2 1 1 1 4 2 2 CAP, CAP, CAP, CAP, CAP, CAP, CAP,
IL60 IL60 Electrical Parts List (Cont.
IL60 IL60 Electrical Parts List (Cont.) Part# RW0022 RX0055 Reference Designator Qty R44, R45 R39, R40 Description 2 2 RES, WW 0R1 2W 5% RES, MO 470R 2W 5% 4 2 2 2 1 4 2 2 1 1 1 CAP, CAP, CAP, CAP, CAP, CAP, CAP, CAP, CAP, CAP, CAP, 1 1 2 2 1 2 1 6 6 2 4 THERMISTOR, PTH9L04BD22TS2F510 CNCTR, HEADER 2PIN .100CTR CNCTR, HEADER 8PIN LOCKING .1C MISC, PC MT SCREW TERM 6-32 TERM, FASTON MALEPCMT 250X032 TERM, FASTON MALEPCMT 187X032 TERM, FASTON MALEPCMT 205X032 TUBING, #5 BLACK CUT TO .
IL60 IL60 Electrical Parts List (Cont.
IL60 IL60 Electrical Parts List (Cont.) Part# Reference Designator Qty Description MISCELLANEOUS KV0001 MT0023 480097 480090 540124 810088 HN0006 HS0066 Z4 J5, J6 J1 J2 L1 1 1 1 1 1 1 1 1 VARISTOR, 275V 100J .
IL60 IL60 Electrical Parts List (Cont.
IL60 Integrated Circuit Diagrams 33
IL60 Wiring Diagram/Crossover Network MIDBASS TRANSDUCER 335741-001 WIRING DIAGRAM GRN/BLK - IN+ W- W+ M- M+ AMPLIFIER IN- GRN + T+ Y- MIDRANGE TRANSDUCER 335812-002 WHT/BLK NETWORK 336500-001 WHT + YEL/BLK - YEL + BLK - RED + TWEETER 335225-002 CROSSOVER NETWORK SCHEMATIC L1 2.4 mH GRN + INPUT C2 80 mF 100V GRN/BLK - INPUT C3 14 mF 100V R1 3.3 ohms 10W L2 0.75 mH C4 8 mF 100V C5 2 mF 100V C6 14 mF 100V L4 0.18 mH L3 1.5 mH WHT WHT/BLK R2 1.
IL60 35 500W EMI/Volume PCB's
IL60 36
IL60 37
IL60 38
IL60 39
IL60 40
