JBL-MediaSub2000-sub-sm 维修电路原理图.pdf

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1、MultiMedia Series LoudspeakersMedia Sub2000Service ManualJBL Consumer Products250 Crossways Park Dr.Woodbury, New York 11797RadioFans.CN 收音机爱好者资料库- CONTENTS -SPECIFICATIONS & TEST PROCEDURE.1OPERATIONS & CONNECTIONS.2SERVICE BULLETIN.3AMPLIFIER BLOCK DIAGRAM.4WIRING DIAGRAM.5P.C.B. DRAWINGS.6VOLTAG

2、E CHART.7EXPLODED VIEW.8IC DIAGRAMS.9MECHANICAL PARTS LIST .10ELECTRICAL PARTS LIST .11SCHEMATICS.13PACKING .14RadioFans.CN 收音机爱好者资料库Media Sub2000 SpecificationsMax Power Output 35 watts ( 1% THD)Frequency Response 50Hz 120HzInput Sensitivity 3V MaximumInput Impedance10k ohmsSignal Input JackStereo

3、 Mini-Connector (1/8”)Signal Output JackStereo Mini-Connector (1/8”)Dimensions (H x W x D) 9 5/8 x 5 x 10 ”(244 x 133 x 273mm)Weight7.0 lbs. /3.2kgTEST PROCEDUREMedia Sub2000Frequency 20Hz 600HzInput Voltage0.175VVolume MaximumGeneral Function1. Assure Level control volume is Maximum (full CW)2. Usi

4、ng sine wave generator sweep unit to range of above frequencies3. Listen to driver and cabinet for rattles, clicks, buzzes, or other unusual noises12JBL Incorporated 250 Crossways Park Dr. Woodbury, New York 11797 (516) 496-3400Service Bulletin Service Bulletin JBL9802 - May 1998This is considered a

5、 Major repair To:All JBL Service Centers Model: Media Sub2000 Powered Subwoofer Subject: False TriggeringIn the event you receive a Media Sub2000 with the complaint: “the subwoofer never shuts off”, or “theunit cycles on & off by itself with no input signal”, perform the following modification to ra

6、ise the inputthreshold of the subwoofer amplifier:Procedure:1) Turn the unit upside-down and remove the (8) mounting screws on the bottom plate. This includes the (2)deeply recessed screws near the center of the plate. Then remove the (2) smaller screws holding theblack input plate to the end of the

7、 cabinet.2) Pull the plate and amplifier up and out the cabinet.3) Unplug all (3) molex connectors, and remove the (2) small screws holding the input plate onto theamplifier PCB; remove the input plate.4) To gain access to the components, remove the (2) remaining small screws holding the PCB to the

8、bottomplate and detach it from the plate.5) Locate C351 - 100pf SMD cap. Replace with 470 pf part, (JBL part #CP1885). See drawing.6) Locate R348 - 330K SMD resistor. Replace with 100k part, (JBL part #RS2043).7) Locate Diode D351. Solder a 10K resistor (JBL part #RS2042) in parallel with the diode.

9、8) Reassemble and replace the amplifier assembly into the cabinet in the reverse order , making sure allconnectors and screws are replaced.* When re-attaching the input plate make sure both groundterminals are attached to the screw.9) Test unit and assure that the subwoofer stays in the standby mode

10、 with no input signal, and comes out ofprotection with a 50 Hz, 50 mV input signal.* When replacing the final two screws in thecenter of the bottom plate, because of thedesign you cannot drop the screws into eachcavity and expect the screws to align with theholes.With a Philips screwdriver well fitt

11、ed to thescrew head, you may either use a magnetizedscrewdriver and lower the tip (with screw)carefully down into the cavity to align; ORturn the subwoofer right-side up and insert thetip with screw up into the cavity.ModelSerial number120VSerial number230VStatusActionMediaSub2000AC0029-10001toAC002

12、9-11300 False TriggeringChange value of C351 and R348; add 10Kresistor in parallel with D351MediaSub2000AC0029-11301and aboveAC0030-01001and aboveFactoryModificationNONE REQUIRED3AMedia Sub2000ABBCCDDEE11223344556677BLOCK DIAGRAMVOL CNTLVOL CNTLAUDIO OUTPUTAUDIO OUTPUTTL072TL074LOW-PASSSUBWOOFERTL07

13、2TL074LOW-PASSSUBWOOFERAC CORDAC CORDPOWER SUPPLYPOWER SUPPLYAUDIO INPUTAUDIO INPUTCIRCUITCIRCUITSWITCHING POWERSWITCHING POWERGREEN-ONRED-STANDBYMULITI-LEDMUTETL074GREEN-ONRED-STANDBYMULITI-LEDMUTETL074SMITH TRIGGER COMPARE CIRCUITSMITH TRIGGER COMPARE CIRCUITAUTO POWER OFF/ONAUTO POWER OFF/ONAFTER

14、 NO SIGNAL I/P FOR A WHILEAFTER NO SIGNAL I/P FOR A WHILEFILTERFILTERPOWER AMPTDA8563QPOWER AMPTDA8563QLD402VR404JK302Q501IC301IC351IC601IC351JK301LD402VR404JK302Q501IC301IC351IC601IC351JK301T901/D906/IC901T901/D906/IC9014AMedia Sub2000ABBCCDDEE11223344556677WIRING DIAGRAMCN901CN9011 1CN601CN601CN40

15、1RLCN401RLJK302JK3021 1RB401RLRB401RLJK301JK301OUTOUTCONTROL PCBCONTROL PCBMAIN PCBMAIN PCBSUBWOOFERSUBWOOFERAC CORDAC CORDAC SOCKETAC SOCKETLVU0195-011LFA0194-001LVU0195-011LFA0194-001AUDIOAUDIOININAUDIOAUDIO+-+-5AMedia Sub2000ABBCCDDEE11223344556677CONTROL PCB PRINTED CIRCUITLVU0195-011LVU0195-011

16、T T2-2.0X1.752-2.0X1.75RB401RB401T TT TLD402R476VR404LD402R476VR404VOLUMEVOLUME1 167S3S323231717222217171 111112182183 3P1P11313S7S7S4S4S6S6S6S614146 61818S2S220205 59 916167187184 41010191917172 2242415151212S2S2S917S9172525S8S8S1S1S5S5AMedia Sub2000ABBCCDDEE11223344556677EXPLODED VIEW81231. GROUND

17、2. INPUT3. OUTPUT1TDA8563Q9234567813111012INPUT 2DIAGNOSTIC OUTPUTMODE SWITCH2VPOUTPUT 2BGND2OUTPUT 2AOUTPUT 1BGND1OUTPUT 1AVP1GROUND (SIGNAL)INPUT 1VOUTRL= 1005023VCC14PULSE INPUTTDA8563Q, IC601DUAL OPAMP, TL072, IC301+12V REGULATOR7812 IC902PS2501, IC903TOP227Y, IC901QUAD OP AMP,TLO74, IC3519MECHA

18、NICAL PARTS LISTREF#DESCRIPTIONPART NO.QTY1FRONT CABABS W/KNOB HOLEx1BPF5041-AQ112REAR CABPP BEIGEBPA0029-AQ113SPEAKER DRIVER4 2 OHM 20WFTF2040-37114BAFFLEMAGIC WOOFBPA0030-00115BOTTOMMAGIC WOOFBPB0023-00116PORT PLATEt=3.0 mmGAL0089-00217SEAL RUBBERBRB0010-00118RUBBERBRB0009-00119MAIN ASSEMBLY APE01

19、94-002110HEAT SINKGAL0090-0011111PORT EDGEBPR0033-001112REAR BRACKETGSE0181-002113PCB BRACKETGSE0180-001114LED PCB ASSEMBLY APE0195-012115TIN FOIL0.1 TIN+0.4 PAPERGTN0034-001116PVC PLATEL20.0 xW6.0 xT0.5 mmBNP0052-001317MASK PLATEMAGIC WOOF (M.SUB)BPA0031-AQ01218RUBBERBRB0008-001219BUSHIONBOSS BUSHI

20、ONBRB0014-001620FEETBRF0024-001421LENSBPN0066-001122LOGO PLATELOGO PLATEBPL0018-002123KNOBMEDIA SUBBPK5041-AQ0124AC SOCKET2.5A250V UL/CSA/VDECPP0002-004125LINE CORDVDE 1830 MM2559-0022221P1DRIVER SPONGEOD102xID91xT1IVE0043-0021S1SCREWM4x0.7PxL85.0 mmH060501-1856S2SCREWT3.0 x1.27P-2RHxL8 mmH101001-10

21、83S3SCREWT3.0 xL8.0 mmH101001-3082S4SCREWT3.0 xL16.0 mmH101001-3164S5SCREWT3.0 xL10.0H101002-3104S6SCREWM3x0.5Px8 mmH120301-3082S7SCREWM3x0.5Px10 mmH120301-3102S8SCREWM3x0.5PxL8.0 mmH120308-3082S9SCREWT3.0 xL10.0 mmH101001-110110MEDIA SUB2000 ELECTRICAL PARTS LISTDESIGNATORDESCRIPTIONPART #QTYCAPACI

22、TORSC301,C302CHIP CAP220 pF 50V 10%PCV5645-2212C303,C304,C352,C612CHIP CAP1 uF 16V +80-20%PCV3962-1054C350,C353,C905,C909,CHIP CAP0.1 uF 50V 20%PCV3955-10410C911-C915,C930C351CHIP CAP470 pF 50V 10%PCV5645-4711C354COND ELECT330 uF 16V 20%PRE3952-3311C355,C910COND ELECT100 uF 16V 20%PRE3952-1012C504,C

23、505,C608CHIP CAP4.7 uF 16V +80-20%PCV3962-4753C600,C603,C605CHIP CAP0.068 uF 50V 5%PCV5635-6833C604CHIP CAP0.15 uF 50V 10%PCV3945-1541C606CHIP CAP0.022 uF 50V 10%PCV5645-2231C609CHIP CAP0.001 uF 50V 10%PCV5645-1021C610CHIP CAP0.22 uF 50V +80-20%PCV3965-2241C901COND SAFTY0.1 uF 250V 20%PVS3559-1041C9

24、02COND ELECT150 uF 400V 20%PJE995E-1511C903COND ELECT47 uF 25V 20%PRE3953-4701C907COND ELECT2700 uF 25V 20%PVR9953-2721C908COND ELECT1000 uF 25V 20% D=10PVE3953-1021C916COND ELECT22 uF 25V 20%PRE3953-2201C917,C918COND SAFTY0.0022 uF 250V 20%PVS3559-2222C919,C920COND SAFTY0.001 uF 250V 20%PVS3559-102

25、2CONNECTORSCN401CONNECTORJ.S.T. 2.0mm PHCCN7879-0261CN601CONNECTOR2 PIN CL3962WVOCCN3962-0021CN901CONNECTOR4 PIN CL3962WVOCCN3962-2341SEMICONDUCTORSD351,D903,D905DIODE SWLL4148 TELEFUNKENRCD4148-0013D902DIODEBYV26D PHILIPSRAD0026-0011D906DIODEMBR/STPS20100CTRHD2010-0011ZD903DIODEP6KE180ARHD0180-0011

26、ZD904DIODE ZENR13.5-14.0V .5WRAZ0859-0831ZD908DIODE ZENR12.6-13.1V .5WRAZ0859-0821IC301IC 8 PINTL072 DUAL OP-AMPRCI0720-0011IC351IC 14 PINTL074CD QUAD OP-AMPRCI0740-0011IC601IC 13 PINTDA8563Q POWER AMPRHI8563-0011BD901RECTIFIERBRIDGE RS204LRHD0204-0011IC901IC 3 PINTOP227Y PWM SWITCHRHI0227-0011IC902

27、IC 3 PINREGULATOR +12VRHI7812-0041IC903IC 4 PINPS2501 OPTOCOUPLERRHI2501-0011Q352,Q353,Q501,Q901XISTR NPNSMT TYPE (2SC945)RCN1623-0014RESISTORSR301,R305,R353,R354,R357,R358,CHIP RES.10K OHM 1/8W 5%QCF0851-10311R503,R607,R905,R906R303CHIP RES.5.6K OHM 1/8W 5%QCF0851-5621R348CHIP RES.100K OHM 1/8W 5%Q

28、CF0851-1041R351,R370,R610CHIP RES.100 OHM 1/8W 5%QCF0851-1013R355,R356CHIP RES.150K OHM 1/8W 5%QCF0851-1542R359CHIP RES.330K OHM 1/8W 5%QCF0851-334111ELECTRICAL PARTS LIST (CONTD)DESIGNATORDESCRIPTIONPART #QTYR360,R606CHIP RES.220K OHM 1/8W 5%QCF0851-2242R361CHIP RES.820K OHM 1/8W 5%QCF0851-8241R362

29、,R380CHIP RES.680K OHM 1/8W 5%QCF0851-6842R363CHIP RES.82K OHM 1/8W 5%QCF0851-8231R364,R615CHIP RES.470 OHM 1/8W 5%QCF0851-4712R366,R368,R614CHIP RES.1K OHM 1/8W 5%QCF0851-1023R369CHIP RES.680 OHM 1/8W 5%QCF0851-6811R501,R907CHIP RES.22K OHM 1/8W 5%QCF0851-2232R502CHIP RES.33K OHM 1/8W 5%QCF0851-333

30、1R604CHIP RES.12K OHM 1/8W 5%QCF0851-1231R605CHIP RES.910 OHM 1/8W 5%QCF0851-9111R616CHIP RES.330 OHM 1/8W 5%QCF0851-3311R901RESISTOR1M OHM 1/2W 5%QHF0250-1051R902CHIP RES.22 OHM 1/8W 5%QCF0851-2201R903,R904CHIP RES.33 OHM 1/8W 5%QCF0851-3302BETWEEN Q352 BASS TO GNDRESISTOR10K OHM 1/8W 5%QAF0850-103

31、1MISCELLANEOUSIC601 TO HSINKSCREWM3.0 xL12.0 xP0.5 mmH120302-3122IC901HEAT SINKAL 30 x25x35H BLACKGAL0093-0011JK301,JK301PHONE JACKJYE TAI 3542-01-030CJM9380-0282CN601 TO WOOFER SPKCON/WIRE2 COND 400/350mm4999A-3691CN901 TO AC SOCKETCON/WIRE4 COND 180mm P=3.96m4999A-3701D906HEAT SINKAL 2.0t BLACKGAL

32、0094-0011D906NUTM3.0 x2.5t NICKELHNM3055-1251D906,IC901WASHERHD=6.7 ID=3.2 OD=3.6DSS0007-0012D906,IC901SI RUBBER13x18x0.3t mmGSI0001-0012F901FUSE4A 250V SLOWKSD2400-0011HEAT SINK TO IC901SCREWT3x6 mmH101012-2061HSINK TO D906SCREWM3.0 x0.5PxL8.0 mmH060308-1081L901AC FILTERA6109 33 mH/0.4AJLF0002-0011

33、L902CHOKE6110 3.3 uHSVC0002-3391P1 TO P2WIRE 18 GA80 MM BLACK UL 16175824-080BB1PCB TO H/SINK(IC901)SCREWT3.0 xL6.0 mmH120301-1061T901PWR TRANS97-550-1 EE-30TSA1201-0011LED PCB ASSEMBLY PARTS LISTREF. NODESCRIPTIONPART NOQTYLD402LEDMULTI-COLOR LED TWOKEM0001-0011PCB BRACKETFELT120 x5x0.2 mmIVS0005-0

34、011R476RESISTOR5K OHM 1/6W 5% CFQAF0650-5021RB401 TO CN401CON/WIRE6 COND 200 mm4999A-3841VR404CNTL ROTRYRV093NB10KPtEj-15F(SMRR0103-012194V0 PCBLED PCBLVU0195-20111212CN601R4763IC903123456RB401Q353ZD904R903C352C301C302R354R902ZD908LD402R616C608C600C912C606R303C304R305R301C609R606C602R605IC351/A123IC

35、351/B765R608C605VR404Q352R366R369R368R607C604R604Q901R364R6151312111098123456712CN601R4763IC903123456RB401Q353ZD904R903C352C301C302R354R902ZD908LD402R616C608C600C912C606R303C304R305R301C609R606C602R605IC351/A123IC351/B765R608C605VR404Q352R366R369R368R607C604R604Q901R364R61513121110981234567IN 2IN 2V

36、DIAGMODEVP2OUT2BVDIAGMODEVP2OUT2BGND 1GND 1GND 2GND 2OUT2AOUT1BOUT1AGND(S)VP1OUT2AOUT1BOUT1AGND(S)VP1IN 1IN 1IC601C916C911C910C915R905C909123IC902D905IC301/A123F901231D906D903ZD903C612D902R904C902C913C914R901C901C903C918R351321IC901C907R907R502Q501123456IC301/B765R503C908L902C610R610R501R370C350C351

37、C355C354R361R360IC351/D141312C353D351IC351/C8910R359R355R362R357R363R356R358R348R353C30312CN901R380C505C504C905R906C920C603C917R614C919JK301JK30281111234DC+DC-X356127VOLLFA0194-002IC601C916C911C910C915R905C909123IC902D905IC301/A123F901231D906D903ZD903C612D902R904C902C913C914R901C901C903C918R351321IC

38、901C907R907R502Q501123456IC301/B765R503C908L902C610R610R501R370C350C351C355C354R361R360IC351/D141312C353D351IC351/C8910R359R355R362R357R363R356R358R348R353C30312CN901R380C505C504C905R906C920C603C917R614C919JK301JK30281111234DC+DC-X356127VOLLFA0194-002!LVU0195-01148!LVU0195-01148AC INLETAC INLETT901B

39、D901L901411T901BD901L901411VOLUME CNTL & POWER INDICATOR LEDVOLUME CNTL & POWER INDICATOR LEDREMARK:SUBWOOFER421REMARK:SUBWOOFER421+ + +OGI+ + + + + + + +5KPS250113V331/50220P220P10K2213V3304.7/16.068.1.0225K61/5010K10K.001220kOTP910TL074TL07410K.06810K2SC9451K6801K10K.1512K2SC945P4704K7TDA8563Q22/1

40、6.1100/16.110K.178L121N4148TL0724ASPS20100CT1N4148P6KE1801/50BYV26D33150/400.1.11M_1/2W0.1/250RS204L47/25.0022_Y2100TOP2272700/2522K33K2SC945PTL07210K1000/253.3uH/2.5A0.2210022K100.1100P100/16330/16820K220KTL0740.1/501N4148TL074330K150K680K10K82K150K10K330K10K1/50680K4.7/164.7/16.110K.001_Y1.068.002

41、2_Y21K.001_Y1INPUTOUTPUTTSA1201-00133mH/0.4A5KPS250113V331/50220P220P10K2213V3304.7/16.068.1.0225K61/5010K10K.001220kOTP910TL074TL07410K.06810K2SC9451K6801K10K.1512K2SC945P4704K7TDA8563Q22/16.1100/16.110K.178L121N4148TL0724ASPS20100CT1N4148P6KE1801/50BYV26D33150/400.1.11M_1/2W0.1/250RS204L47/25.0022

42、_Y2100TOP2272700/2522K33K2SC945PTL07210K1000/253.3uH/2.5A0.2210022K100.1100P100/16330/16820K220KTL0740.1/501N4148TL074330K150K680K10K82K150K10K330K10K1/50680K4.7/164.7/16.110K.001_Y1.068.0022_Y21K.001_Y1INPUTOUTPUTTSA1201-00133mH/0.4ACN401CN4012SC9452SC94511223344556677889AABBCCDDEEFFGGHHIIJJKKLLMMN

43、NOO9SCHEMATICMedia Sub20001304PE-LDITEMITEMNAMENAMEPART NO.PART NO.MEDIASYS SUB.MEDIASYS SUB.AFA0078-001AFA0078-00113256741325674END CAPEND CAPITF0135-001ITF0135-001IVP0001-040IVP0001-040OWN MANUALOWN MANUALCARTON8GIFT BOXCARTON8GIFT BOXYOM0145-001YOM0145-001ICC0129-002ICC0129-002ICG0016-001ICG0016-001YWC0009-002YWC0009-002WARRANTY CARDWARRANTY CARD12336754 48POLY BAGPOLY BAGIVP0001-018POLY BAGPOLY BAGIVP0001-018AMedia Sub2000ABBCCDDEE11223344556677PACKING EXPLODED VIEW14