Infinity-IL120S-sub-sm 维修电路原理图.pdf

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1、Interlude SeriesIL120s SubwooferService ManualInfinity Systems, Inc250 Crossways Park Dr.Woodbury, New York 11797REV 1 10/2001RadioFans.CN 收音机爱 好者资料库IL120sCONTENTSSPECIFICATIONS .3DETAILED SPECIFICATIONS .4CONTROLS and CONNECTIONS .6OPERATION.8BASS OPTIMIZATION SYSTEM.9MECHANICAL/PACKING PARTS LIST.

2、11EXPLODED VIEW .12PACKAGING .13EXPLODED VIEW OF AMPLIFIER.14TEST SETUP and PROCEDURE.15IL120s ADJUST BIAS PROCEDURE.16PRINTED CIRCUIT BOARD DIAGRAMS.17ELECTRICAL PARTS LIST (120v).23INTEGRATED CIRCUIT DIAGRAMS 31IL120s SCHEMATICS.32RadioFans.CN 收音机爱 好者资料库IL120s3SPECIFICATIONSIL120s Frequency Respon

3、se: 28Hz - 150Hz (3dB) Maximum Amplifier Output:500 watts (20Hz - 150Hz with no more than 0.1% THD)Crossover Frequencies:50Hz - 150Hz, 24dB/octave, continuously variableDriver:12 C.M.M.D.Dimensions (H x W x D):17-1/2 x 17-1/4 x 19-3/4Weight:45 lb (20.5kg)Optional Accessory:Bass OptimizationTest & Me

4、asurement Kit:Part Number: 335852-002DETAILED SPECIFICATIONSIL120s4IL120s5DETAILED SPECIFICATIONS (Cont.)IL120s6CONTROL and CONNECTIONSIL120s7CONNECTIONSIL120s8OPERATIONIL120s9BASS OPTIMIZATION SYSTEMTMIL120s10BASS OPTIMIZATION SYSTEMTM(Cont.)plays the tones from the test CD and records the relative

5、 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 curvefor the frequencies below 100Hz. The user simply notes the frequency of the largest bass peak, calculates the cor-rect amount of

6、attenuation, and uses the “Q-Finder” to determine the width of the curve. These three values aredialed into the Bass Optimization System controls located on the speaker. The entire process takes less than twen-ty minutes.If your dealer does not stock the Bass Optimization System test and measurement

7、 kit, you may purchase it directlyfrom Infinity. U.S. residents can visit our Web site at or call 1-800-553-3332. Canadianresidents should contact their dealer or call 1-800-567-3275.Ask for Infinity part number 335852-002.IL120s11MECHANICAL/PACKAGING PARTS LISTMECHANICALIL120s COMPLETE AMPLIFIER AS

8、SYN/AWOOFER, 12”, C.M.M.D., shielded, 3.4 ohms 10%336056-001VOLUME CONTROL, R-IL336250-001FRONT BAFFLE336439-001PORT TUBE336799-001GRILLE CUP (12)333249-003GRILLE, GRAY336441-001GRILLE, MIDNIGHT BLUE336441-002GRILLE, RICH BURGUNDY336441-003GRILLE, BLACK336441-004PACKAGINGOWNERS MANUAL, IL100S/IL120S

9、335839-001WARRANTY CARD335841-001SURVEY CARD330033-001CARTON336497-001FOOT (4)334186-002FOOT PAD (4)334192-001PAD, END, TOP336496-001PAD, END, BOTTOM336496-002GRILLE ASSEMBLYSee Options AbovePOWER CORD, 120V US-15336658-115RABOS SCREW DRIVER335848-002DescriptionPart NumberIL120s12EXPLODED VIEWCABINE

10、T(NOT FOR SALE)WOOFER, 12(336056-001)VOLUME CONTROL, R-IL(336250-001)FRONT BAFFLE(336439-001)PORT TUBE(336799-001)GRILLE CUP (6)(333249-003)GRILLE CUP (6)(333249-003)GRILLE, GRAY 336441-001GRILLE, MIDNIGHT BLUE 336441-002GRILLE, RICH BURGUNDY 336441-003GRILLE, BLACK 336441-004FOOT (4)(334186-002)FOO

11、T PAD (4)(334192-001)OO514IL120sAMPLIFIER ASSY(NOT FOR SALE)TO SERVICE THE IL120s SUBWOOFER1) Remove the grille.2) Extract (6) rubber grille retainers as shown in the illustration above, this can be accomplished by carefully pulling them out of the cavities with long-nosed pliers or similar tool.3)

12、Remove the (6) Phillips screws that are now exposed.4) Remove the front baffle.5) Remove the (6) screws that secure the driver.6) To service the amplifier, remove the (12) Phillips screws at the rear of the enclosure, and pull the amplifier out of the back.SCREW, (2)#6 x .75, PB, PPH, BLK(903401-012

13、)SCREW, (6)#6 x .75, PB, PPH, BLK(903401-012)SCREW, (12)#8 x .75, PB, PPH BLK(900101-012)SCREW, (6)#8 x .75, PB, PPH BLK(900101-012)SCREW,#8 x 1, PB TRPH BLK(903101-016)IL120s13PACKAGINGOWNERS MANUALIL100S/IL120S(335839-001)WARRANTY CARD(335841-001)SURVEYCARD(330033-001)POWER CORD,120V US-15(336658-

14、115)RABOS SCREWDRIVER(335848-002)GRILLE ASSEMBLY, GRAY,(336441-001)PAD, END, TOP(336496-001)PAD, END, BOTTOM(336496-002)CARTON(336497-001)00513IL120s14EXPLODED VIEW OF AMPLIFIERLINEARBOARDFEATUREBOARDRABOSBOARDPOWERSUPPLYBOARDRCA QUADJACK(JC0052)SWITCH, (4)SPDT TOGGLE(SR0007)BINDINGPOSTS GOLD(JC0104

15、)FUSE HOLDERPANEL MT SEALED(FH0012)FUSE, 4A 250V1.25X.25 SLO-BLO(FS0026)AC (120V)IEC SOCKET(JC0129)SWITCH,ROCKER POWER(SR0032)FRONT VIEWEMIBOARDO00515IL120s15TEST SETUP and PROCEDURE00516SIGNALGENERATORAMPLIFIERAC VOLTMETER (10V)IL120sUNDER TESTOUTPUT FROM GENERATOR/AMPLIFIER00345ORSYSTEM AURAL SWEE

16、P TESTEquipment needed: Function/signal generator/sweep generator Integrated Amplifier Multimeter Speaker cablesGeneral Unit Function (UUT = Unit Under Test)Switches/knobs on the amplifier faceplate:Input Select to “Line”Low Pass Filter to OFFBass Optimization system to OFFLow Pass Frequency Adjust

17、full CW (150Hz)Phase switch either position1.From the signal generator, Connect both right and left line level inputs (RCA) to signal generator and UUT. Use Y-cable ifnecessary from mono source. 2.On the front of the unit, turn the LEVEL control full clockwise (0).3.Turn on generator, adjust to 120m

18、V, 30 Hz.4.Plug in UUT; turn the power switch ON. LED should be Red. Turn LEVEL control full counterclockwise (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 clockwise (0), disconnect RCA cable

19、.7.Connect one pair of speaker cables to Speaker Level input terminal on UUT. Cables should be connected to an integratedamplifier fed by the signal generator.8.Switch Input to “Speaker”.9.Turn on generator and adjust so that speaker level input at the amplifier is 2.2V, 30 Hz. Turn LEVEL control fu

20、ll counter-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 generator as a signal source.2.Sweep generator from 20Hz to 20kHz. Listen to the cabinet and drivers for any rattles

21、, clicks, buzzes or any other noises. Ifany unusual noises are heard, remove woofer and test.Driver Function (Woofer)1.Remove woofer from cabinet; detach + and - wire clips. See page 12 for removal instructions.2.Check DC resistance of woofer; it should be 3.4 ohms10%.3.Connect a pair of speaker cab

22、les to driver terminals. Cables should be connected to an integrated amplifier fed by a signalgenerator. 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.IL120s ADJUST BIAS PROCED

23、URE(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 exitingthe cover can remain connected unless they will prevent you from removing the amplifier oraccess

24、ing 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 illuminates on the front gain con

25、trol dial unless you have disconnected the plug.7. Connect voltmeter set to DC millivolt range to twin pins on terminal J7, on Linear 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 un

26、til 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.16IL120s17IL VOLUME RIGHT BOARDIL120s18EMI FILTER

27、 BOARDIL120s19IL FEATURE BOARDIL120s20IL RABOS BOARDIL120s21500W HC BASH POWER SUPPLYIL120s22IL 500W LINEAR BOARDIL120s23IL120s ELECTRONIC PARTS LISTPart No.Reference DesignatorQtyDescriptionPCB, FEATURE SEMICONDUCTORSQM0035Q51JFET, N-CH J111 TO92 TRUA0003U5,U62OPAMP, QUAD 14PIN DIL LM324NUA0009U1,U

28、22OPAMP, QUAD 14P DIL TL074/084UA0010U71OPAMP, DUAL 8PIN DIL TL082DS0001D9,D100,D101,D102,D103,9RECT, 100mA 75V SIGNAL 1N4148TD104,D105, D200,D201DZ0002Z2001ZENER, 500mW 12V 5% 1N5242BDZ0014Z1001ZENER, 500MW 14V 5% 1N5244BCAPACITORSCC0020C2001CAP, CA 470PF 100V 5%CC0025C2031CAP, CA 1000PF 100V 10%CC

29、0072C1,C2,C4,C20,C100,C1016CAP, CA 100PF 100V 10%CC0082C2011CAP, CA .1UF 50V 20%CE0013C2041CAP, E 47UF 50V 20% 5MMLSCE0101C16,C192CAP, E 4.7UF 50V 85D 5X11 5MMLCE0103C1021CAP, E 100UF 35V 85DEG 5MMLSCE0106C51CAP, E 22UF 35V BP 8X11 5MMLSCE0108C31CAP, E 4.7UF 16V BIPOLAR 5X11CF0045C10,C11,C22,C234CAP

30、, F .1UF 63DC 5% 5MMLSCF0078C12,C132CAP, F .47UF 63V 10% 5MMLSCF0125C6,C82CAP, F .068UF 100V 5% 5MMLSCF0128C7,C92CAP, F .033UF 100V 5% 5MMLSRESISTORSRC0001R2111RES, CF 1K0 1/2W 5%RC0192R3,R72RES, CF 2K0 1/2W 5%RC0273R20,R24,R333RES, ZERO OHM 1/4WRC0290R2061RES, CF 9M1 1/4W 5%RM0002R12,R13,R37,R38,R3

31、9,R100,R101,R102,10RES, MF 10K0 1/4W 1%R208,R209RM0003R16,R200,R2103RES, MF 15K0 1/4W 1%RM0011R1,R4,R5,R8,R103,R105,R2017RES, MF 100K 1/4W 1%RM0012R14,R15,R303RES, MF 100R 1/4W 1%RM0016R1041RES, MF 13K0 1/4W 1%RM0020R28,R292RES, MF 1K40 1/4W 1%RM0024R2071RES, MF 2K21 1/4W 1%RM0031R2041RES, MF 3K32 1

32、/4W 1%RM0075R2051RES, MF 475R 1/4W 1%RM0084R761RES, MF 1K65 1/4W 1%RM0085R1071RES, MF 2K00 1/4W 1%RM0106R26,R782RES, MF 14K0 1/4W 1%RM0120R9,R102RES, MF 30K1 1/4W 1%RM0124R111RES, MF 39K2 1/4W 1%RM0136R2021RES, MF 150K 1/4W 1%RM0156R1081RES, MF 392K 1/4W 1%IL120s24IL120s ELECTRONIC PARTS LIST (Cont.

33、)Part No.Reference DesignatorQtyDescriptionRM0158R27,R792RES, MF 28K0 1/4W 1%RM0171R31,R2032RES, MF 475K 1/4W 1%RM0188R1061RES, MF 499R 1/4W 1%RM0205R17,R18,R22,R23,R325RES, MF 22K6 1/4W 1%RM0372R351RES, MF 5K76 1/4W 1%RM0404R2,R62RES, MF 54R9 1/4W 1%RP0105R191POT, B50K QUADMISCELLANEOUSJC0052J41CNC

34、TR, RCA QUAD JACKJH0006J91CNCTR, HEADER 4PIN .100CTRJH0008J31CNCTR, HEADER 5PIN .100CTRJH0074J7,J102CNCTR, HEADER 8PIN LOCKING .1CSR0007S1,S2,S3,S44SWITCH, SPDT TOGGLE C/W CAP PCPCB, RABOSSEMICONDUCTORSUA0009U11OPAMP, QUAD 14P DIL TL074/084UA0010U21OPAMP, DUAL 8PIN DIL TL082RESISTORSRM0001R24,R25,R3

35、33RES, MF 1K00 1/4W 1%RM0002R1,R2,R4,R9,R14,R15,R21,R238RES, MF 10K0 1/4W 1%RM0003R8,R132RES, MF 15K0 1/4W 1%RM0012R31RES, MF 100R 1/4W 1%RM0024R221RES, MF 2K21 1/4W 1%RM0042R261RES, MF 681R 1/4W 1%RM0047R311RES, MF 909R 1/4W 1%RM0080R5,R102RES, MF 825R 1/4W 1%RM0106R351RES, MF 14K0 1/4W 1%RM0170R32

36、1RES, MF 59K 1/4W 1%RM0185R341RES, MF 5K90 1/4W 1%RM0260R361RES, MF 1M0 1/4W 1%RM0271R191RES, MF 110K 1/4W 1%RM0281R7,R122RES, MF 6K04 1/4W 1%RM0315R171RES, MF 2K67 1/4W 1%RM0369R6,R112RES, MF 340R 1/4W 1%RM0370R181RES, MF 9K31 1/4W 1%RM0377R161RES, MF 3K57 1/4W 1%RM0378R201RES, MF 549R 1/4W 1%RM039

37、8R301RES, MF 162R 1/4W 1%RP0087R27,R292POT, A10K DUAL 12MM HOR 5%RP0088R281POT, C10K DUAL 12MM HOR 5%CAPACITORSCF0045C1,C2,C53CAP, F .1UF 63DC 5% 5MMLSCF0125C31CAP, F .068UF 100V 5% 5MMLSCF0135C41CAP, F .18UF 50V 5% 5MMLSIL120s25IL120s ELECTRONIC PARTS LIST (Cont.)Part No.Reference DesignatorQtyDesc

38、riptionMISCELLANEOUSJH0074J11CNCTR, HEADER 8PIN LOCKING .1CPCB, LINEARSEMICONDUCTORSDS0001D1,D2,D3,D4,D5,D6,D7,D8,D9,D10,D1111RECT, 100mA 75V SIGNAL 1N4148TQB0017Q2,Q62TRANS, NPN 150V 0.6A 2N5551TRQB0018Q1,Q52TRANS, PNP 150V 0.6A 2N5401TRQM0015Q3,Q72MOSFET, IRF640 TO220ABQM0034Q4,Q82MOSFET, IRF9540

39、TO220ABQM0054Q91JFET, N-CH J113 TO92UA0009U11OPAMP, QUAD 14P DIL TL074/084UV0015U21VREG, +18V 500MA LM7818CTUV0016U31VREG, -18V 500MA LM7918CTDZ0011Z1,Z22ZENER, 500MW 3V 5% 1N5225BRESISTORSRM0001R12,R13,R14,R15,R28,R29,R30,R318RES, MF 1K00 1/4W 1%RM0002R1,R2,R5,R64RES, MF 10K0 1/4W 1%RM0021R7,R8,R23

40、,R244RES, MF 1K82 1/4W 1%RM0024R17,R18,R33,R344RES, MF 2K21 1/4W 1%RM0029R9,R10,R25,R264RES, MF 3K01 1/4W 1%RM0035R41,R422RES, MF 4K75 1/4W 1%RM0039R471RES, MF 5K11 1/4W 1%RM0091R22,R382RES, MF 3K65 1/4W 1%RM0170R21,R372RES, MF 59K 1/4W 1%RM0180R16,R322RES, MF 4K99 1/4W 1%KS0019R461THERMISTOR, PTH9L

41、04BD22TS2F510RP0059R11,R272POT, 2K 8MM TOP ADJ/COVERRW0022R44,R452RES, WW 0R1 2W 5%RX0055R39,R402RES, MO 470R 2W 5%CAPACITORSCC0025C15,C16,C17,C184CAP, CA 1000PF 100V 10%CC0080C13,C142CAP, CA 220P 100V 10%CC0097C4,C52CAP, C 10P 50V 10%CE0003C61CAP, E 2.2UF 50V 20% 105CCE0013C9,C10,C21,C224CAP, E 47U

42、F 50V 20% 5MMLSCE0085C19,C202CAP, E 22UF 16V BP 6X11 5MMLSCE0103C11,C122CAP, E 100UF 35V 85DEG 5MMLSCE0116C11CAP, E 2.2UF 50V BP 6X11 5MMLSCF0125C31CAP, F .068UF 100V 5% 5MMLSCF0128C21CAP, F .033UF 100V 5% 5MMLSCC0082C7,C82CAP, CA .1UF 50V 20%IL120s26IL120s ELECTRONIC PARTS LIST (Cont.)Part No.Refer

43、ence DesignatorQtyDescriptionMISCELLANEOUSJH0016J71CNCTR, HEADER 2PIN .100CTRJH0074J13,J142CNCTR, HEADER 8PIN LOCKING .1CMM0025J9,J102MISC, PC MT SCREW TERM 6-32MT0003J11TERM, FASTON MALE PCMT 250X032MT0023J3,J62TERM, FASTON MALE PCMT 187X032MT0036J21TERM, FASTON MALE PCMT 205X032TS00166TUBING, #5 B

44、LACK CUT TO .3 USED ONTHE FETSPCB, POWER SUPPLYSEMICONDUCTORSDR0077D506,D5072RECT, 1A 100V FAST REC 1N4934DS0001D509,D510,D5113RECT, 100mA 75V SIGNAL 1N4148TDS0002D501,D502,D5053RECT, 100MA 200V SIGNAL 1N3070DD0003D5031RECT, 1A2 60V DIACDR0076D5041RECT, 16A 400V ULTRA MUR1640CTDR0087D5081RECT, 15A 2

45、00V ULTRA MUR1540QB0002Q5051TRANS, NPN 40V .6A TO92 2N4401QB0014Q5031TRANS, PNP TO92 MPSA92TRQB0017Q5061TRANS, NPN 150V 0.6A 2N5551TRQM0015Q504,Q507 2MOSFET, IRF640 TO220ABQM0055Q501,Q5022MOSFET, IRF740 TO220AB IR ONLYHC1011U5011HYBRID, THK FILM HC BUCK CNTRDZ0002Z501,Z5032ZENER, 500mW 12V 5% 1N5242

46、BDZ0004Z5051ZENER, 500mW 18V 5% 1N5248BDZ0021Z502,Z5042ZENER, 500MW 15V 5% 1N5245BDZ0038Z5061ZENER, 500MW 33V 5% 1N5257BCAPACITORSCC0040C5031CAP, CA 4700PF 100V 10%CC0059C518,C5191CAP, CA .1UF 100V 20%CC0082C5211CAP, CA .1UF 50V 20%CE0013C505,C5062CAP, E 47UF 50V 20% 5MMLSCE0098C5071CAP, E 22UF 50V

47、20% 5X11 5MMLSCF0019C501,C5022CAP, F 4700PF 100V 5% 5MMLSCC0021C5161CAP, C 470PF 1KV 10% BULKCC0130C5241CAP, CY1 4700PF 250V 20% .4LSCE0040C5041CAP, E 680UF 200V 25X35 85DEGCE0136C508,C5092CAP, E 820UF 200V 20% 30X35CF0050C510,C511,C512,C513,C5205CAP, F .1UF 250V 10% 10MMLSCF0146C5171CAP, F 6.8UF 25

48、0V 10% 27MMLSRESISTORSRC0082R5091RES, CF 100K 1/2W 5%RC0136R5151RES, CF 160K 1/4W 5%RC0273R518,R5192RES, ZERO OHM 1/4WRM0001R5071RES, MF 1K00 1/4W 1%IL120s27IL120s ELECTRONIC PARTS LIST (Cont.)Part No.Reference DesignatorQtyDescriptionRM0002R5251RES, MF 10K0 1/4W 1%RM0050R5311RES, MF 90K9 1/4W 1%RM0

49、070R5281RES, MF 301R 1/4W 1%RM0191R5291RES, MF 20K5 1/4W 1%RM0198R5081RES, MF 205K 1/4W 1%RM0260R5261RES, MF 1M0 1/4W 1%RM0337R5301RES, MF 19K6 1/4W 1%RM0339R511,R512,R523,R534,R5355RES, MF 10R 0.6W 1% FLAMEPROOFRM0340R503,R5062RES, MF 22R 0.6W 1% FLAMEPROOFRM0397R502,R5052RES, MF 422R 1/4W 1%RM0399

50、R5271RES, MF 3K48 1/4W 1%RW0022R521,R522,R532,R5334RES, WW 0R1 2W 5%RX0046R5141RES, MO 47K 1W 5%RX0048R501,R5042RES, MO 330R 1W 5%RX0072R5241RES, MO 100R 1W 5%KS0021R5131SURGISTOR, 4R 8A 70J SL154R008RX0106R5381RES, MO 15K 2W 5%MISCELLANEOUS500111T5011XFMR, POWER 500W ETD44 160V540131L5011IND, 25UH