JBL-MediaSub2000-sub-sm 电路图 维修手册.pdf
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1、MultiMedia Series Loudspeakers Media Sub2000 Service Manual JBL Consumer Products 250 Crossways Park Dr. Woodbury, New York 11797 RadioFans.CN 收音机爱 好者资料库 - CONTENTS - SPECIFICATIONS remove the input plate. 4) To gain access to the components, remove the (2) remaining small screws holding the PCB to
2、the bottom plate 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 th
3、e diode. 8) Reassemble and replace the amplifier assembly into the cabinet in the reverse order , making sure all connectors and screws are replaced.* When re-attaching the input plate make sure both ground terminals are attached to the screw. 9) Test unit and assure that the subwoofer stays in the
4、standby mode with no input signal, and comes out of protection with a 50 Hz, 50 mV input signal. * When replacing the final two screws in the center of the bottom plate, because of the design you cannot drop the screws into each cavity and expect the screws to align with the holes. With a Philips sc
5、rewdriver well fitted to the screw head, you may either use a magnetized screwdriver and lower the tip (with screw) carefully down into the cavity to align; OR turn the subwoofer right-side up and insert the tip with screw up into the cavity. ModelSerial number 120V Serial number 230V StatusAction M
6、edia Sub2000 AC0029-10001 to AC0029-11300 False TriggeringChange value of C351 and R348; add 10K resistor in parallel with D351 Media Sub2000 AC0029-11301 and above AC0030-01001 and above Factory Modification NONE REQUIRED 3 A Media Sub2000 A B B C C D D E E 11 2 2 33 44 5 5 66 77 BLOCK DIAGRAM VOL
7、CNTLVOL CNTL AUDIO OUTPUTAUDIO OUTPUT TL072 TL074 LOW-PASS SUBWOOFER TL072 TL074 LOW-PASS SUBWOOFER AC CORDAC CORD POWER SUPPLYPOWER SUPPLY AUDIO INPUTAUDIO INPUT CIRCUITCIRCUIT SWITCHING POWERSWITCHING POWER GREEN-ON RED-STANDBY MULITI-LED MUTE TL074 GREEN-ON RED-STANDBY MULITI-LED MUTE TL074 SMITH
8、 TRIGGER COMPARE CIRCUITSMITH TRIGGER COMPARE CIRCUIT AUTO POWER OFF/ONAUTO POWER OFF/ON AFTER NO SIGNAL I/P FOR A WHILEAFTER NO SIGNAL I/P FOR A WHILE FILTERFILTER POWER AMP TDA8563Q POWER AMP TDA8563Q LD402 VR404 JK302 Q501 IC301 IC351 IC601IC351 JK301 LD402 VR404 JK302 Q501 IC301 IC351 IC601IC351
9、 JK301 T901/D906/IC901T901/D906/IC901 4 A Media Sub2000 A B B C C D D E E 11 2 2 33 44 5 5 66 77 WIRING DIAGRAM CN901CN901 1 1 CN601CN601 CN401 RL CN401 RL JK302JK302 1 1RB401 RL RB401 RL JK301JK301 OUTOUT CONTROL PCBCONTROL PCB MAIN PCBMAIN PCB SUBWOOFERSUBWOOFER AC CORDAC CORD AC SOCKETAC SOCKET L
10、VU0195-011 LFA0194-001 LVU0195-011 LFA0194-001 AUDIOAUDIO ININ AUDIOAUDIO + - + - 5 A Media Sub2000 A B B C C D D E E 11 2 2 33 44 5 5 66 77 CONTROL PCB PRINTED CIRCUIT LVU0195-011LVU0195-011 T T 2-2.0X1.752-2.0X1.75 RB401RB401 T T T T LD402 R476 VR404 LD402 R476 VR404 VOLUMEVOLUME 1 1 6 7 S3S3 2323
11、 1717 2222 1717 1 1 1111 21 8 21 8 3 3 P1P1 1313 S7S7 S4S4 S6S6 S6S6 1414 6 6 1818 S2S2 2020 5 5 9 9 1616 7 18 7 18 4 4 1010 1919 1717 2 2 2424 1515 1212 S2S2 S9 17 S9 17 2525 S8S8 S1S1 S5S5 A Media Sub2000 A B B C C D D E E 11 2 2 33 44 5 5 66 77 EXPLODED VIEW 8 123 1. GROUND 2. INPUT 3. OUTPUT 1 T
12、DA8563Q 9 2 3 4 5 6 7 8 13 11 10 12 INPUT 2 DIAGNOSTIC OUTPUT MODE SWITCH 2 VP OUTPUT 2B GND2 OUTPUT 2A OUTPUT 1B GND1 OUTPUT 1A VP1 GROUND (SIGNAL) INPUT 1 VOUT RL= 10050 23 VCC 14 PULSE INPUT TDA8563Q, IC601 DUAL OPAMP, TL072, IC301 +12V REGULATOR 7812 IC902 PS2501, IC903 TOP227Y, IC901 QUAD OP AM
13、P, TLO74, IC351 9 MECHANICAL PARTS LIST REF#DESCRIPTIONPART NO.QTY 1FRONT CABABS W/KNOB HOLEx1BPF5041-AQ11 2REAR CABPP BEIGEBPA0029-AQ11 3SPEAKER DRIVER4 2 OHM 20WFTF2040-3711 4BAFFLEMAGIC WOOFBPA0030-0011 5BOTTOMMAGIC WOOFBPB0023-0011 6PORT PLATEt=3.0 mmGAL0089-0021 7SEAL RUBBERBRB0010-0011 8RUBBER
14、BRB0009-0011 9MAIN ASSEMBLY APE0194-0021 10HEAT SINKGAL0090-00111 11PORT EDGEBPR0033-0011 12REAR BRACKETGSE0181-0021 13PCB BRACKETGSE0180-0011 14LED PCB ASSEMBLY APE0195-0121 15TIN FOIL0.1 TIN+0.4 PAPERGTN0034-0011 16PVC PLATEL20.0 xW6.0 xT0.5 mmBNP0052-0013 17MASK PLATEMAGIC WOOF (M.SUB)BPA0031-AQ0
15、12 18RUBBERBRB0008-0012 19BUSHIONBOSS BUSHIONBRB0014-0016 20FEETBRF0024-0014 21LENSBPN0066-0011 22LOGO PLATELOGO PLATEBPL0018-0021 23KNOBMEDIA SUBBPK5041-AQ01 24AC SOCKET2.5A250V UL/CSA/VDECPP0002-0041 25LINE CORDVDE 1830 MM2559-0022221 P1DRIVER SPONGEOD102xID91xT1IVE0043-0021 S1SCREWM4x0.7PxL85.0 m
16、mH060501-1856 S2SCREWT3.0 x1.27P-2RHxL8 mmH101001-1083 S3SCREWT3.0 xL8.0 mmH101001-3082 S4SCREWT3.0 xL16.0 mmH101001-3164 S5SCREWT3.0 xL10.0H101002-3104 S6SCREWM3x0.5Px8 mmH120301-3082 S7SCREWM3x0.5Px10 mmH120301-3102 S8SCREWM3x0.5PxL8.0 mmH120308-3082 S9SCREWT3.0 xL10.0 mmH101001-1101 10 MEDIA SUB2
17、000 ELECTRICAL PARTS LIST DESIGNATORDESCRIPTIONPART #QTY CAPACITORS C301,C302CHIP CAP220 pF 50V 10%PCV5645-221 2 C303,C304,C352,C612CHIP CAP1 uF 16V +80-20%PCV3962-105 4 C350,C353,C905,C909,CHIP CAP0.1 uF 50V 20%PCV3955-104 10 C911-C915,C930 C351CHIP CAP470 pF 50V 10%PCV5645-471 1 C354COND ELECT330
18、uF 16V 20%PRE3952-331 1 C355,C910COND ELECT100 uF 16V 20%PRE3952-101 2 C504,C505,C608CHIP CAP4.7 uF 16V +80-20%PCV3962-475 3 C600,C603,C605CHIP CAP0.068 uF 50V 5%PCV5635-683 3 C604CHIP CAP0.15 uF 50V 10%PCV3945-154 1 C606CHIP CAP0.022 uF 50V 10%PCV5645-223 1 C609CHIP CAP0.001 uF 50V 10%PCV5645-102 1
19、 C610CHIP CAP0.22 uF 50V +80-20%PCV3965-224 1 C901COND SAFTY0.1 uF 250V 20%PVS3559-104 1 C902COND ELECT150 uF 400V 20%PJE995E-151 1 C903COND ELECT47 uF 25V 20%PRE3953-470 1 C907COND ELECT2700 uF 25V 20%PVR9953-272 1 C908COND ELECT1000 uF 25V 20% D=10PVE3953-102 1 C916COND ELECT22 uF 25V 20%PRE3953-2
20、20 1 C917,C918COND SAFTY0.0022 uF 250V 20%PVS3559-222 2 C919,C920COND SAFTY0.001 uF 250V 20%PVS3559-102 2 CONNECTORS CN401CONNECTORJ.S.T. 2.0mm PHCCN7879-026 1 CN601CONNECTOR2 PIN CL3962WVOCCN3962-002 1 CN901CONNECTOR4 PIN CL3962WVOCCN3962-234 1 SEMICONDUCTORS D351,D903,D905DIODE SWLL4148 TELEFUNKEN
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