Infinity-BU80-sub-sm维修电路原理图.pdf

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1、BU80 BU80E HTS-10 POWERED SUBWOOFER SERVICE MANUAL Infinity Systems, Inc. 250 Crossways Park Dr. Woodbury, New York 11797 Rev H 11/2001 RadioFans.CN 收音机爱 好者资料库 Amplifier/Subwoofer BU-80/BU80E/HTS-10 SAFETY INFORMATION/VERSION DIFFERENCES Warning Any person performing service of this unit will be exp

2、osed to hazardous voltages and the risk of electric shock. It is assumed that any person who removes the amplifier from this cabinet has been properly trained in protecting against avoidable injury and shock. Therefore, any service procedures are to be performed by qualified service personal ONLY! C

3、aution This unit does not have a power switch. Hazardous voltages are present within the unit whenever it is plugged in. Before the amplifier is plugged in, be sure its rated voltage corresponds to the voltage of the AC power source to be used. Incorrect voltage could cause damage to the amplifier w

4、hen the AC power cord is plugged in. Do not exceed rated voltage by more than 10%: operation below 90% of rated voltage will cause poor performance or may shut the unit off. List of Safety Components Requiring Exact Replacements F1 *Fuse SLO BLO 0.50A or 1.0A 250V 5 x 20mm.UL approved See Bulletin (

5、INF2000-02) page 16. PWRCORD SPT-2 or better with polarized plug, UL approved wired with the hot side to fused side. Use with factory replacement panel strain relief only. T1 *Transformer. Use only factory Replacement. DBR or D001Bridge diode. Use only factory replacement. C1, 2 3300uF, 50V electrol

6、ytic filter caps. Be sure replacement part is at least the same working voltage and capacitance rating. Also the lead spacing is important. Incorrect spacing may cause premature failure due to internal cabinet pressure and vibration. C6 *10uF 50V electrolytic radial (BU80 and HTS-10 version “A”,”B”

7、only) S53AMI Power output module. Use only factory or CON101replacement Faceplate Use only factory replacement Air leak cover Use only factory replacement CMC1 Use only factory replacement L1 Use only factory replacement Fuse PCB Use only factory replacement Main PCB Use only factory replacement R29

8、 470 ohm?W METAL OXIDE, non flammable Leakage/Resistance Check Before returning the unit to the customer, perform a leakage or 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. Connect the unit to its rated p

9、ower source. Using an ammeter, measure the current between the neutral side of the AC supply and chassis ground of the unit under test. if leakage current exceeds 0.5mA, the unit is defective. Reverse the polarity of the AC supply and repeat. Resistance. Measure the resistance from either side of th

10、e line cord to chassis ground. If it is less than 500k ohms, the unit is defective. WARNING! DO NOT return the unit to the customer if it fails one of these tests until the problem is located and corrected. * See Service Bulletin (INF2000-01) page 15. * See Service Bulletin (INF2000-02) page 16. Rev

11、 A version of the BU-80/HTS-10 subwoofer uses the following SAFETY PARTS: #80103 - T1 Power Transformer #4300 #80104 - F1 Line fuse 0.5A 250V T type slo-blo Rev B version of the BU-80/HTS-10 subwoofer uses the following SAFETY PARTS: #80127 - T1 Power Transformer #4300F #80111 - F1 Line fuse 1.0A 25

12、0V T type slo-blo Either Rev A or Rev B can be identified by: The correct fuse rating will be printed on the amplifier label, also: BU-80: Rev A version serial #AM0011-29474 and below; Rev B version serial #AM0011-29475 and above. HTS-10: Rev A version serial #AM0011-07400 and below; Rev B version s

13、erial #AM0011-07401 and above. HTS-10 subwoofer only There is a third version, “C”, with minor internal differences. Data for this version is included, and differences are noted in the manual. Units can be identified for service as follows: Amplifier faceplate says “Made in Canada” on the “B” versio

14、n. Amplifier faceplate says “Made in China” on the “C” version. BU80E = HTS-10 version, “C” RadioFans.CN 收音机爱 好者资料库 2 TABLE OF CONTENTS Amplifier/Subwoofer BU-80/BU80E/HTS-10 3 SAFETY INFORMATION/VERSION DIFFERENCES.2 GENERAL SPECIFICATIONS.3 DETAILED SPECIFICATIONS.4 CONTROLS AND THEIR FUNCTION.5 B

15、U80/BU80E/HTS-10 CONNECTIONS .6 OPERATION .10 BU80/BU80E/HTS-10 TEST SET UP PROCEDURE.11 BU-80/HTS-10 POWER AMP TEST PROCEDURE FLOW CHART.13 SERVICE BULLETIN INF9902 - APRIL 1999 .14 SERVICE BULLETIN INF2000-01rev2 - FEBRUARY 2001 .15 SERVICE BULLETIN INF2000-02 - MARCH .16 TECH TIPS .17 BU80/BU80E/

16、HTS-10 AMPLIFIER ASSEMBLY EXPLODED VIEW.18 BU80/BU80E/HTS-10 PACKING the master carton is not shown. 8 WOOFER BU-80/HTS-10 (rev. A,B) 200200 BU-80E/HTS-10 (rev. C) 090-308000-000 FEET (SET OF 4) BU-80/HTS-10 (rev. A,B) 200210 BU-80E/HTS-10 (rev. C) 061-403005-000 00502-19 BU-80/BU-80E/HTS-10 PACKING

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

18、on the Amp Module before soldering. 4)Attach the amp Module with the mounting screws before soldering or powering up. 5)Use only rosin-core or non-acid core solder; thoroughly de-flux the surfaces after soldering. If the new Amp Module has larger mounting hole(s) in the case, and the stock screws no

19、 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 Y 4 IN 3 GND 2 -15V 5 S/D 6 +15V 7 V- 8 V- 9 V- 10 O/P 11 V+ 12 V+ 14 6V 13 V+ 1 FB 15 LIMIT PWR MODULE CN101 00370 BU-80E & HTS-10 re

20、v “C” ONLY QUAD OP AMP, LM324, TL074 U1, IC101 MOSFET TRANS IRF530 Q2, 3 1. DRAIN 2. GATE 3. SOURCE 123 TRANS, NPN, KSP113 2SC1815 Q102, 103 TRANS, PNP, 2SA1015 Q101, 104, 105 TRANS, NPN, 2N5551 2N3904 Q1, 3 TRANS, PNP, 2N3906 MPS A56 Q2, 4, 5 JFET DUAL OPAMP LF353N U1 VCC OUT2 IN2 () IN2 (+) OUT1 I

21、N1 () IN1 (+) VEE 1 2 3 4 8 7 6 5 3 COLLECTOR 2 BASE 1 EMITTER TRANS, NPN MPS A13 (Darl) Q1 GNDA3Y2A2Y3Y1A1 A4 21345 A6 13 CC V 14 A5 11 Y6 12 Y6 10 67 Y4 98 IC 74HC14N HEX SCHMITT TRIGGER INVERTER U2, 3 S53AM/S64AMI - Power Amp module SAFETY PART Amplifier/SubwooferBU-80/BU-80EHTS-10 24 BU-80/HTS-1

22、0 INTEGRATED CIRCUIT/TRANSISTORS DIAGRAM Amplifier/Subwoofer BU-80/HTS-10 25 BU-80/HTS-10 (rev. A, B) SCHEMATIC 1 OF 2 Amplifier/Subwoofer BU-80/HTS-10 26 BU-80/HTS (rev. A, B) SCHEMATIC 2 OF 2 HTS-10 ELECTRICAL PARTS LIST (Rev C version) Part NumberDescriptionRef. DesignatorQty MAIN PCB Semiconduct

23、ors 050-002400-100ZENER DIODE 24V D1031 050-003000-100ZENER DIODE 30V D1041 050-006200-100ZENER DIODE 6.2VD0021 050-414802-1001N4148 DIODED101,102,105,1064 050-524500-200ZENER DIODE 15V/1WD003,0042 051-001300-100TRANSISTOR KSP113Q1021 051-101501-000TRANSISTOR 2SA1015Q101,104,1053 051-181501-100TRANS

24、ISTOR 2SC1815Q1031 052-401001-000KBU4A/100V Bridge RegulatorD0011 053-007400-000IC TL074 Dual Op-AmpIC1011 Resistors 020-100497-120Carbon resistor 1K 1/4W J R132,139,1403 020-100597-120Carbon resistor 10K 1/4W J R107,108,R131,133,1365 020-100697-120Carbon resistor 100K 1/4W J R105,106,114,122,124,13

25、4,1377 020-100797-120Carbon resistor 1M 1/4W J R1281 020-220797-120Carbon resistor 2M2 1/4W J R1381 020-330397-120Carbon resistor 330R 1/4W J R118,1192 020-330497-120Carbon resistor 3K3 1/4W J R1301 020-330597-120Carbon resistor 33K 1/4W J R1351 020-430497-121Carbon resistor 4K3 1/4W J R1251 020-470

26、197-121Carbon resistor 4R7 1/4W J R0021 020-470497-120Carbon resistor 4K7 1/4W J R1171 020-470597-120Carbon resistor 47K 1/4W J R1231 020-470697-120Carbon resistor 470K 1/4W J R1291 020-680597-120Carbon resistor 68K 1/4W J R109,1432 021-100096-120MOF RESISTOR 0R1 1/2WR141,1422 021-100301-120MOF RESI

27、STOR 100R/1WR101-1044 021-220401-021MOF RESISTOR 2K2 1WR120,1212 021-220402-020MOF RESISTOR 2K2 2WR0011 021-221597-100MF RESISTOR 221K 1/4W F R1121 021-249597-100 MF RESISTOR 24K9 1/4W F R1151 021-270697-100MF RESISTOR 270K 1/4W F R1271 021-274697-100MF RESISTOR 274K 1/4W F R1161 021-280597-100MF RE

28、SISTOR 28K 1/4W F R1101 021-470497-100MF RESISTOR 4K7 1/4W F R1261 021-499597-100MF RESISTOR 49K9 1/4W F R1131 021-820302-020MO 820OHM/2WR003,0042 021-820497-100MO 8K2 OHM/1WR1111 026-100695-251VR 100KB Crossover Frquency PotVR1021 026-500495-252VR 5K ohm Volume PotVR1011 Capacitors 030-100247-300Ce

29、ramic capacitor 0u1/50V Z P:5C114,115,006,009,0105 032-100163-300mylar capacitor 0u001/100V J P:5 C1031 032-100263-301mylar capacitor 0u01/100V J P:5 C1101 032-100364-300mylar capacitor 0u1/100V K R C001,002,003,007,008,11 104105106107108, 118 032-180364-300mylar capacitor 0u18/100V J P:5 C1161 032-

30、220163-300mylar capacitor 0u0022/100V J P:5 C109,1112 033-220543-200elec capacitor 22uF/50V J6R 1020C1171 033-220644-281NPE capacitor 220uF/50V K10R1326 VIEC101,1022 Amplifier/Subwoofer infinity BU-80/BU80E/HTS-10 27 Part NumberDescriptionRef. DesignatorQty 034-100635-300elec capacitor 100uF/35V MR

31、0811 P5C1131 034-330745-310elec capacitor 3300uF/50V MR 1840 P7.5C004,0052 034-470425-300elec capacitor 4u7/25V MR 0511 P5C1121 POWER AMP MODULE1 050-414802-1001N4148 DIODED1-D99 051-530000-100MOSFET N-CHANNEL IRF530Q2,32 051-555100-000TRANSISTOR 2N5551Q11 053-035301-000IC LF353N Dual Op-AmpU11 053-

32、741400-000IC 74HC14N Hex Schmitt Trigger Inverter U2,32 020-100297-120Carbon resistor 10R 1/4W J R11,122 020-100397-120Carbon resistor 100R 1/4W J R71 020-100497-120Carbon resistor 1K 1/4W J R3,4,5,94 020-100697-120Carbon resistor 100K 1/4W J R21 020-100797-120Carbon resistor 1M 1/4W J R101 020-2203

33、97-121Carbon resistor 220R 1/4W J R61 020-330497-120Carbon resistor 3K3 1/4W J R81 020-680497-120Carbon resistor 6K8 1/4W J R11 032-100394-302MND mylar capacitor 0u1/100V K P:7.5C91 034-100525-303elec capacitor 10uF/25V M SM 4*7 C71 039-100343-100mylar capacitor(axial) 100pF/50V J NPO C1,2,3,54 039-

34、100345-100mylar capacitor(axial) 0u1/50V M Z5UC41 039-100464-100mylar capacitor(axial) 0u001/50V K X7RC81 039-330344-101mylar capacitor(axial) 330pF/50V K X7R C61 072-040170-000CONNECTOR 15PIN 1 073-014023-900SHIELD 103.9*14*0.3t 1 073-032050-000HEAT SINK 102.3*58mm 1 061-700012-000Silicon Sleeves f

35、or Q2, Q32 FUSE PCB ASSy 011-080203-000FUSE PCB BOARD SWD80 82*21*1.6m/m 072-040039-000Terminal (PCB TYPE) PC205 (t=0.8mm)J3,4,5,64 091-000097-000FUSE T1A/250V 5*20mm 1 091-000130-000FUSE HOLDER CQ-203SP(C) (0) Miscellaneous 042-017607-004Transformer YT-9161-2 75W-120Vac1 073-014026-000Metal Shield

36、Plate1 061-020000-000knob 20 x15mm ul94V-01 061-314002-000cord bushing P/N SB4F-21 062-160400-001Rear cover 168.6x36.8x19.9mm1 062-211800-000Front cover 213x178x31.5mm1 083-041802-017power cord spt-2 blk #181 043-240130-010CHOKE COIL 2.4mH YT-8719L0011 043-260330-001CHOKE COIL 0.11mH YT-8713-1L1041

37、050-505200-001LED LT-2402-25LED1011 008-061007-200GASKET MODULE BLK CR C4305 1x7x80mm1 008-061610-201GASKET PCB PU FOAM SM-55 3x6x200mm1 062-050800-000PUSH TERMINAL 8PJK1011 070-560891-108SCREW BTS-3 2.6x8m/m 072-010058-000RCA JACK 2P P/N:052000W1G (Red,Wht)JK1021 072-040032-000Terminal P:3.96 3P CN

38、0011 072-040039-000Terminal PCB TYPE PC205 (t=0.8mm)J101,1022 091-000143-000EMI BEAD2 Amplifier/Subwoofer infinity BU-80/BU80E/HTS-10 28 Amplifier/Subwoofer BU80E/HTS-10 29 BU80E/HTS-10 REV C POWER AMP MODULE PCB Amplifier/Subwoofer BU-80E/HTS-10 30 BU80E/HTS-10 REV C CIRCUIT BOARD (Cont.) Amplifier/Subwoofer BU80E/HTS-10 31 BU80E/HTS-10 REV C CIRCUIT BOARD (Cont.) Amplifier/Subwoofer BU-80E/HTS-10 32 BU80E/HTS-10 REV C SCHEMATIC Amplifier/Subwoofer BU-80E/HTS-10 33 BU80E/HTS-10 rev C POWER AMP MODULE SCHEMATIC (IRF640) (IRF640) E D F 321 C B A 4321 A B C 8765 D E F 876 00503