Infinity-BU80-sub-sm 维修电路原理图.pdf

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1、BU80BU80EHTS-10POWERED SUBWOOFERSERVICE MANUALInfinity Systems, Inc.250 Crossways Park Dr. Woodbury, New York 11797 Rev H 11/2001RadioFans.CN 收音机爱 好者资料库Amplifier/Subwoofer BU-80/BU80E/HTS-10SAFETY INFORMATION/VERSION DIFFERENCESWarningAny person performing service of this unit will be exposedto haza

2、rdous voltages and the risk of electric shock. It isassumed that any person who removes the amplifier fromthis cabinet has been properly trained in protecting againstavoidable injury and shock. Therefore, any serviceprocedures are to be performed by qualified servicepersonal ONLY!CautionThis unit do

3、es not have a power switch. Hazardousvoltages are present within the unit whenever it isplugged in.Before the amplifier is plugged in, be sure its rated voltagecorresponds to the voltage of the AC power source to beused. Incorrect voltage could cause damage to the amplifierwhen the AC power cord is

4、plugged in. Do not exceed ratedvoltage by more than 10%: operation below 90% of ratedvoltage will cause poor performance or may shut the unitoff.List of Safety Components RequiringExact ReplacementsF1 *Fuse SLO BLO 0.50A or 1.0A 250V5 x 20mm.UL approvedSee Bulletin (INF2000-02) page 16.PWRCORD SPT-2

5、 or better with polarized plug, ULapproved wired with the hot side to fusedside. Use with factory replacement panelstrain relief only.T1 *Transformer. Use only factoryReplacement.DBR or D001Bridge diode. Use only factoryreplacement.C1, 2 3300uF, 50V electrolytic filter caps. Besure replacement part

6、is at least the sameworking voltage and capacitance rating.Also the lead spacing is important.Incorrect spacing may cause prematurefailure due to internal cabinet pressureand vibration.C6 *10uF 50V electrolytic radial (BU80 andHTS-10 version “A”,”B” only)S53AMI Power output module. Use only factory

7、or CON101replacementFaceplate Use only factory replacementAir leak cover Use only factory replacementCMC1 Use only factory replacementL1 Use only factory replacementFuse PCB Use only factory replacementMain PCB Use only factory replacementR29 470 ohm?W METAL OXIDE, nonflammableLeakage/Resistance Che

8、ckBefore returning the unit to the customer, perform a leakageor resistance test as follows:Leakage Current. Note there is no power switch on this unit.When the power plug is plugged in, the unit is live. Connectthe unit to its rated power source. Using an ammeter,measure the current between the neu

9、tral side of the ACsupply and chassis ground of the unit under test. if leakagecurrent exceeds 0.5mA, the unit is defective. Reverse thepolarity of the AC supply and repeat.Resistance. Measure the resistance from either side of theline cord to chassis ground. If it is less than 500k ohms, theunit is

10、 defective.WARNING! DO NOT return the unit to the customer if itfails one of these tests until the problem is located andcorrected.* See Service Bulletin (INF2000-01) page 15.* See Service Bulletin (INF2000-02) page 16.Rev A version of the BU-80/HTS-10 subwoofer usesthe following SAFETY PARTS:#80103

11、 - T1 Power Transformer #4300#80104 - F1 Line fuse 0.5A 250V T type slo-bloRev B version of the BU-80/HTS-10 subwoofer uses thefollowing SAFETY PARTS:#80127 - T1 Power Transformer #4300F#80111 - F1 Line fuse 1.0A 250V T type slo-bloEither Rev A or Rev B can be identified by:The correct fuse rating w

12、ill be printed on the amplifierlabel, also:BU-80: Rev A versionserial #AM0011-29474 and below;Rev B version serial #AM0011-29475 andabove.HTS-10: Rev A version serial #AM0011-07400and below;Rev B version serial #AM0011-07401 andabove.HTS-10 subwoofer onlyThere is a third version, “C”, with minor int

13、ernaldifferences.Data for this version is included, and differences arenoted in the manual.Units can be identified for service as follows:Amplifier faceplate says “Made in Canada” on the “B”version.Amplifier faceplate says “Made in China” on the “C”version.BU80E = HTS-10 version, “C”RadioFans.CN 收音机

14、爱 好者资料库2TABLE OF CONTENTSAmplifier/Subwoofer BU-80/BU80E/HTS-103SAFETY INFORMATION/VERSION DIFFERENCES.2GENERAL SPECIFICATIONS.3DETAILED SPECIFICATIONS.4CONTROLS AND THEIR FUNCTION.5BU80/BU80E/HTS-10 CONNECTIONS .6OPERATION .10BU80/BU80E/HTS-10 TEST SET UP PROCEDURE.11BU-80/HTS-10 POWER AMP TEST PRO

15、CEDUREFLOW CHART.13SERVICE BULLETIN INF9902 - APRIL 1999 .14SERVICE BULLETIN INF2000-01rev2 -FEBRUARY 2001 .15SERVICE BULLETIN INF2000-02 - MARCH .16TECH TIPS .17BU80/BU80E/HTS-10 AMPLIFIER ASSEMBLYEXPLODED VIEW.18BU80/BU80E/HTS-10 PACKING & CABINET PARTS .20BU-80/HTS-10 rev. A, B PCB (version 5) .2

16、1BU-80/HTS-10 rev A, B PCB (version 5.1) .22BU-80/HTS-10 rev A, B ELECTRICAL PARTS LIST.23BU80/BU80E/HTS-10 INTEGRATED CIRCUIT/TRANSISTORS DIAGRAM .24BU-80/HTS-10 rev A, B SCHEMATIC 1 of 2.25BU-80/HTS-10 rev A, B SCHEMATIC 2 of 2.26BU80E/HTS-10 REV C ELECTRICAL PARTS LIST .27BU80E/HTS-10 REV C CIRCU

17、IT BOARDS .29BU80E/HTS-10 REV C SCHEMATIC .32BU80E/HTS-10 REV C POWER AMPMODULE SCHEMATIC .33GENERAL SPECIFICATIONSFrequency Response ( 3 db).45Hz - 150HzOutput (RMS) .75WDriver.8” WooferCrossover Frequency .50Hz 150Hz (continuously variable)Dimensions (H x W x D) .11” (29.2cm) x 11” (29.2cm) x 11”

18、(29.2cm)Add 1” (4.5cm) for feet.Weight .26 lbs/11.8 kg,Refinements may be made on occasion to existing products without notice,but will always meet of exceed original specifications unless otherwise stated.IMPORTANT SERVICE NOTES: When testing the BU Series amplifier, a load must alwaysbe connected

19、to the output terminals, whether the woofer, or a 4 to 8 ohm resistive load.All AC powered test instruments (meters, oscilloscopes, etc.) must have a floatingground, i.e. be connected to an isolation transformer.DETAILED SPECIFICATIONSAmplifier/Subwoofer BU-80/BU80E/HTS-104Amplifier/Subwoofer BU-80/

20、BU80E/HTS-105CONTROLS AND THEIR FUNCTIONAmplifier/Subwoofer BU-80/BU80E/HTS-106BU-80/BU80E/HTS-10 CONNECTIONSAmplifier/Subwoofer BU-80/BU80E/HTS-107BU-80/BU80E/HTS-10 CONNECTIONS (Cont.)Amplifier/Subwoofer BU-80/BU80E/HTS-108BU-80/BU80E/HTS-10 CONNECTIONS (Cont.)Amplifier/Subwoofer BU-80/BU80E/HTS-1

21、09BU-80/BU80E/HTS-10 CONNECTIONS (Cont.)Amplifier/Subwoofer BU-80/BU80E/HTS-1010OPERATIONAmplifier/Subwoofer BU-80/BU80E/HTS-1011BU-80/BU80E/HTS-10 TEST SET UP AND PROCEDUREAmplifier/Subwoofer BU-80/HTS-1012BU80/HTS rev. “A, B”Amplifier/SubwooferBU-80/HTS-1013Power Amp Test Procedure Flow Chart BU80

22、/HTS-10 rev. “A, B”Amplifier/SubwooferBU-80/HTS-1014Service Bulletin INF9902 - APRIL 1999Amplifier/SubwooferBU-80/HTS-1015Amplifier/SubwooferBU-80/HTS-1016Amplifier/SubwooferBU-80/HTS-1017TECH TIPSAmplifier/Subwoofer BU-80/BU80E/HTS-1018BU-80/BU80E/HTS-10 AMPLIFIER ASSEMBLY EXPLODED VIEWBU80/BU80E/H

23、TS-10Amplifier/Subwoofer BU-80/BU80E/HTS-1019BU-80/BU80E/HTS-10 AMPLIFIER ASSEMBLY EXPLODED VIEW (Cont.)Amplifier/SubwooferBU-80/BU-80EHTS-1020BU-80“or”HTS-10OWNERSMANUALWARRANTYCARD#333715-001BU-80 orHTS-10SUBWOOFERSCREWS (8)SCREWS (4)SCREWS (4)CABINETNOT FORSALEBOTTOM STYROFOAMRAILPADS#200260 (2 p

24、er carton)TOPSTYROFOAMPADS#200270(4 per carton)OWNERSMANUALBU-80 - #200230HTS-10 - #HTS10GUIDEBU-80E - #008-042228-020PLASTIC BAGCARTONBU-80 - #200220HTS-10 - #HTS10CTNBU-80E- #005-003838-000BU-80/BU-80E/HTS-10 PACKINGBU-80/BU-80E/HTS-10CABINET ASSEMBLYAMPLIFIERASSEMBLYFEET PAD (4)STICKERS#200252NOT

25、E: The HTS-10 subwoofer is part of the HTS-10 system and packaged with 5 satellitespeakers; the master carton is not shown.8 WOOFERBU-80/HTS-10 (rev. A,B) 200200BU-80E/HTS-10 (rev. C)090-308000-000FEET (SET OF 4)BU-80/HTS-10(rev. A,B) 200210BU-80E/HTS-10 (rev. C)061-403005-00000502-19BU-80/BU-80E/HT

26、S-10 PACKING & CABINET PARTSAmplifier/Subwoofer BU-80/HTS-1021BU-80/HTS-10 (rev. A, B) PCBAmplifier/SubwooferBU-80/HTS-1022BU-80/HTS-10 (rev. A, B) PCBAmplifier/SubwooferBU-80/HTS-1023BU-80/HTS-10 (rev. A, B) ELECTRICAL PARTS LIST+6V151617V+1+6V2V+3184O/P195O/P206V-V-217228SD 24+15V 239 +15V10 SDFR

27、2511 FRI/P 2612 I/PGND 2713 GND-15V 2814 -15V00228NOTE: THE FOLLOWING PROCEDURES MUST BE FOLLOWED WHENINSTALLING NEW AMP MODULES:FAILURE TO FOLLOW ONE OR MORE OF THESE STEPS MAYRESULT IN THE INSTANT DESTRUCTION OF THE MODULE WHENPOWERED UP.1)Align white indent marker on Amp Module with indent marker

28、 on mainPCB; alternately position of label on the top of the module; incorrectlyreplacing the Module 1800in the PCB slot will result in its destruction.2)All AC powered test instruments (meters, oscilloscopes, etc.) musthave a floating ground, i.e. be connected to an isolation transformer.3)Align an

29、d position the Amp Module before soldering.4)Attach the amp Module with the mounting screws before soldering orpowering up.5)Use only rosin-core or non-acid core solder; thoroughly de-flux thesurfaces after soldering.If the new Amp Module has larger mounting hole(s) in the case, andthe stock screws

30、no longer will fit, and screws of the proper type can-not be obtained locally order:(2) part# 60301S (screws)(2) part# 60301N (nuts)BU-80 and HTS-10 rev “A, B” ONL Y4IN3GND2-15V5S/D6+15V7V-8V-9V-10O/P11V+12V+146V13V+1FB15LIMITPWR MODULECN10100370BU-80E & HTS-10 rev “C” ONLYQUAD OP AMP, LM324, TL074U

31、1, IC101MOSFET TRANS IRF530Q2, 31. DRAIN2. GATE3. SOURCE123TRANS, NPN, KSP1132SC1815Q102, 103TRANS, PNP, 2SA1015Q101, 104, 105TRANS, NPN, 2N55512N3904Q1, 3TRANS, PNP, 2N3906MPS A56Q2, 4, 5JFET DUAL OPAMP LF353N U1VCCOUT2IN2 ()IN2 (+)OUT1IN1 ()IN1 (+)VEE123487653 COLLECTOR2BASE1 EMITTERTRANS, NPNMPS

32、A13 (Darl)Q1GNDA3Y2A2Y3Y1A1A421345A613CCV14A511Y612Y61067Y498IC 74HC14N HEX SCHMITTTRIGGER INVERTERU2, 3S53AM/S64AMI - Power Amp module SAFETY PARTAmplifier/SubwooferBU-80/BU-80EHTS-1024BU-80/HTS-10 INTEGRATED CIRCUIT/TRANSISTORS DIAGRAMAmplifier/SubwooferBU-80/HTS-1025BU-80/HTS-10 (rev. A, B) SCHEM

33、ATIC 1 OF 2Amplifier/SubwooferBU-80/HTS-1026BU-80/HTS (rev. A, B) SCHEMATIC 2 OF 2HTS-10 ELECTRICAL PARTS LIST (Rev C version)Part NumberDescriptionRef. DesignatorQtyMAIN PCB Semiconductors050-002400-100ZENER DIODE 24V D1031050-003000-100ZENER DIODE 30V D1041050-006200-100ZENER DIODE 6.2VD0021050-41

34、4802-1001N4148 DIODED101,102,105,1064050-524500-200ZENER DIODE 15V/1WD003,0042051-001300-100TRANSISTOR KSP113Q1021051-101501-000TRANSISTOR 2SA1015Q101,104,1053051-181501-100TRANSISTOR 2SC1815Q1031052-401001-000KBU4A/100V Bridge RegulatorD0011053-007400-000IC TL074 Dual Op-AmpIC1011Resistors020-10049

35、7-120Carbon resistor 1K 1/4W J R132,139,1403020-100597-120Carbon resistor 10K 1/4W J R107,108,R131,133,1365020-100697-120Carbon resistor 100K 1/4W J R105,106,114,122,124,134,1377020-100797-120Carbon resistor 1M 1/4W J R1281020-220797-120Carbon resistor 2M2 1/4W J R1381020-330397-120Carbon resistor 3

36、30R 1/4W J R118,1192020-330497-120Carbon resistor 3K3 1/4W J R1301020-330597-120Carbon resistor 33K 1/4W J R1351020-430497-121Carbon resistor 4K3 1/4W J R1251020-470197-121Carbon resistor 4R7 1/4W J R0021020-470497-120Carbon resistor 4K7 1/4W J R1171020-470597-120Carbon resistor 47K 1/4W J R1231020-

37、470697-120Carbon resistor 470K 1/4W J R1291020-680597-120Carbon resistor 68K 1/4W J R109,1432021-100096-120MOF RESISTOR 0R1 1/2WR141,1422021-100301-120MOF RESISTOR 100R/1WR101-1044021-220401-021MOF RESISTOR 2K2 1WR120,1212021-220402-020MOF RESISTOR 2K2 2WR0011021-221597-100MF RESISTOR 221K 1/4W F R1

38、121021-249597-100 MF RESISTOR 24K9 1/4W F R1151021-270697-100MF RESISTOR 270K 1/4W F R1271021-274697-100MF RESISTOR 274K 1/4W F R1161021-280597-100MF RESISTOR 28K 1/4W F R1101021-470497-100MF RESISTOR 4K7 1/4W F R1261021-499597-100MF RESISTOR 49K9 1/4W F R1131021-820302-020MO 820OHM/2WR003,0042021-8

39、20497-100MO 8K2 OHM/1WR1111026-100695-251VR 100KB Crossover Frquency PotVR1021026-500495-252VR 5K ohm Volume PotVR1011Capacitors030-100247-300Ceramic capacitor 0u1/50V Z P:5C114,115,006,009,0105032-100163-300mylar capacitor 0u001/100V J P:5 C1031032-100263-301mylar capacitor 0u01/100V J P:5 C1101032

40、-100364-300mylar capacitor 0u1/100V K R C001,002,003,007,008,11104105106107108, 118032-180364-300mylar capacitor 0u18/100V J P:5 C1161032-220163-300mylar capacitor 0u0022/100V J P:5 C109,1112033-220543-200elec capacitor 22uF/50V J6R 1020C1171033-220644-281NPE capacitor 220uF/50V K10R1326 VIEC101,102

41、2Amplifier/Subwoofer infinity BU-80/BU80E/HTS-1027Part NumberDescriptionRef. DesignatorQty034-100635-300elec capacitor 100uF/35V MR 0811 P5C1131034-330745-310elec capacitor 3300uF/50V MR 1840 P7.5C004,0052034-470425-300elec capacitor 4u7/25V MR 0511 P5C1121POWER AMP MODULE1050-414802-1001N4148 DIODE

42、D1-D99051-530000-100MOSFET N-CHANNEL IRF530Q2,32051-555100-000TRANSISTOR 2N5551Q11053-035301-000IC LF353N Dual Op-AmpU11053-741400-000IC 74HC14N Hex Schmitt Trigger Inverter U2,32020-100297-120Carbon resistor 10R 1/4W J R11,122020-100397-120Carbon resistor 100R 1/4W J R71020-100497-120Carbon resisto

43、r 1K 1/4W J R3,4,5,94020-100697-120Carbon resistor 100K 1/4W J R21020-100797-120Carbon resistor 1M 1/4W J R101020-220397-121Carbon resistor 220R 1/4W J R61020-330497-120Carbon resistor 3K3 1/4W J R81020-680497-120Carbon resistor 6K8 1/4W J R11032-100394-302MND mylar capacitor 0u1/100V K P:7.5C91034-

44、100525-303elec capacitor 10uF/25V M SM 4*7 C71039-100343-100mylar capacitor(axial) 100pF/50V J NPO C1,2,3,54039-100345-100mylar capacitor(axial) 0u1/50V M Z5UC41039-100464-100mylar capacitor(axial) 0u001/50V K X7RC81039-330344-101mylar capacitor(axial) 330pF/50V K X7R C61072-040170-000CONNECTOR 15PI

45、N 1073-014023-900SHIELD 103.9*14*0.3t 1073-032050-000HEAT SINK 102.3*58mm 1061-700012-000Silicon Sleeves for Q2, Q32FUSE PCB ASSy011-080203-000FUSE PCB BOARD SWD80 82*21*1.6m/m072-040039-000Terminal (PCB TYPE) PC205 (t=0.8mm)J3,4,5,64091-000097-000FUSE T1A/250V 5*20mm 1091-000130-000FUSE HOLDER CQ-2

46、03SP(C) (0)Miscellaneous042-017607-004Transformer YT-9161-2 75W-120Vac1073-014026-000Metal Shield Plate1061-020000-000knob 20 x15mm ul94V-01061-314002-000cord bushing P/N SB4F-21062-160400-001Rear cover 168.6x36.8x19.9mm1062-211800-000Front cover 213x178x31.5mm1083-041802-017power cord spt-2 blk #18

47、1043-240130-010CHOKE COIL 2.4mH YT-8719L0011043-260330-001CHOKE COIL 0.11mH YT-8713-1L1041050-505200-001LED LT-2402-25LED1011008-061007-200GASKET MODULE BLK CR C4305 1x7x80mm1008-061610-201GASKET PCB PU FOAM SM-55 3x6x200mm1062-050800-000PUSH TERMINAL 8PJK1011070-560891-108SCREW BTS-3 2.6x8m/m072-01

48、0058-000RCA JACK 2P P/N:052000W1G (Red,Wht)JK1021072-040032-000Terminal P:3.96 3P CN0011072-040039-000Terminal PCB TYPE PC205 (t=0.8mm)J101,1022091-000143-000EMI BEAD2Amplifier/Subwoofer infinity BU-80/BU80E/HTS-1028Amplifier/Subwoofer BU80E/HTS-1029BU80E/HTS-10 REV C POWER AMP MODULE PCBAmplifier/S

49、ubwooferBU-80E/HTS-1030BU80E/HTS-10 REV C CIRCUIT BOARD (Cont.)Amplifier/Subwoofer BU80E/HTS-1031BU80E/HTS-10 REV C CIRCUIT BOARD (Cont.)Amplifier/SubwooferBU-80E/HTS-1032BU80E/HTS-10 REV C SCHEMATICAmplifier/SubwooferBU-80E/HTS-1033BU80E/HTS-10 rev C POWER AMP MODULE SCHEMATIC(IRF640)(IRF640)EDF321CBA4321ABC8765DEF87600503