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JBL S120PII manual

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Table of contents for the manual

  • Page 1

    Studio ™ Ser ie s S120P II Powered Subw oofer Service Manual JBL Cons umer Products 250 Cr ossway s Park D r. W oodbury, New Yor k 11797 Rev 3 2 /200 6[...]

  • Page 2

    - CONTENTS - BASI C SPECIF I CATIONS …………….……. .…………..1 DETAIL ED SPECIF ICATI ONS ……….……. . …………..2 CONNECTIONS………………………...……..…...…..…4 OPERA TION ……..………………….……...…….….…...7 BASI C TROUBLESHOOTING..…………………… ……8 BULLE TIN JBL2003-[...]

  • Page 3

    S120PII 300W Powered Sub/ Plate Amp LINE VOLTAGE Yes/No Hi/Lo Line Nom. Unit Notes US 120vac/60Hz Yes 108-132 120 Vrms Normal Operation EU 230vac/50-60Hz Yes 207-264 230 Vrms Normal operation, MOMS required Parameter Spec Unit QA Test Limits Conditions Notes Amp Section Type (Class AB, D, other) D n/a n/a Bridge type amplifier, None of the speaker [...]

  • Page 4

    Parameter Spec Unit QA Test Limits Conditions Notes Transients/Pops ATO Transient 5 mV-peak n/a @ Speaker Outputs Turn-on Transient 50 mV-peak 2v-pp @ Speaker Outputs AC Line cycled from OFF to ON Turn-off Transient 50 mV-peak 2v-pp @ Speaker Outputs AC Line cycled from ON to OFF Efficiency Efficiency 70 % 65 Rated power Nominal Line voltage 120 VA[...]

  • Page 5

    When we designed the S120P II powered subwoofer , our goal was to offer the user the best possible performance combined with the most flexible and complete installation options. Please look over the following three examples to determine which description best matches your system and follow the corresponding hookup instructions. T o use the binding-[...]

  • Page 6

    Dolby Pro Logic (Non-Digital) – Line Level Use this installation method for Dolby Pro Logic appli- cations (not Dolby Digital, DTS or other digital processing), where the receiver/processor is equipped with a subwoofer output or a volume-controlled preamp (line-) level output: Use RCA-type patch cords to connect the line-level subwoofer outputs o[...]

  • Page 7

    Dolby Digital or DTS (or Other Digital Surround Mode) Connection Use this installation method for Dolby Digital, DTS or other digital surround processors: IMPORT ANT : Make sure that the LFE toggle switch ™ on the subwoofer is in the “ LFE ” position. Use the Line Level input jacks ¶ for the Low- Frequency Effects channel. Connect these jack[...]

  • Page 8

    OPERA TION The S120P II is equipped with both a master Power switch ‚ and an Auto turn-on/turn- off switch £ . In order to function, the S120P II must be plugged into an active electrical outlet (but not an accessories outlet on another component of your audio system such as a receiver), and the master Power switch ‚ must be turned on (the “[...]

  • Page 9

    TROUBLESHOOTING If you used the High Level (speaker) inputs • and there is no sound from any of the speakers: • Check that receiver/amplifier is on and a source is playing. • Check that powered subwoofer is plugged into an active electrical outlet and is switched on £‚ . • Check all wires and connections between receiver/amplifier and sp[...]

  • Page 10

    Servic e Bulle tin Serv ice Bull etin JBL2003- 06 - Apr il 2003 Thi s is c onsider ed a M inor r epair To: All JBL Serv ice Center s M odel: S120PI I Subject: D istor tion W hen Comi ng Out Of Standby I n the ev ent y ou recei ve an S120PII s ubw oof er w it h th e com plai nt “There i s a bri ef chi rpi ng s ound, or sho rt o sc illat ion t ha t[...]

  • Page 11

    S120 PII Stu dio Serie s 10 S120PII BLOCK DIAGRAM[...]

  • Page 12

    12" Woofer 338008-001 Front Grille 338007-001 (8) Screws PB, HXS. #8 x .75" 903802-012 (4) Rubber Foot Assembly 338037-001 To p Plate 337898-001 Port T ube 337859-001 Amplifier Assembly Not for Sale T op Plate Gasket 338012-001 LED Indicator Assembly 335650-001 (4) Grille Retainers 333249-001 (12) Screws PB, HXS. #8 x .75" 903802-012[...]

  • Page 13

    S120P II T es t Se t Up a nd P roc edur e SYST EM A URAL SW EEP TES T Equi pm ent n eeded : • Functi on/si gnal genera tor/sw eep g enera tor • Integra ted Am pli fier • Mul timeter • Speak er ca bles • RCA p hono c abl es ( pair ) General U nit Function (UUT = Uni t Under Test) Swi tches /kno bs o n the am plifi er face plat e: Crossover[...]

  • Page 14

    S120PII ELECTRICAL PARTS LIST Part Number Qt y Descri p tion Reference Desi g nato r Amplifier PCB Resistors 021-100401-020 1 Metal oxide film resistor 1K 1W J FK TYPE R173 021-620303-020 2 Metal oxide film resistor 620R 3WS J 8x20 KINK R76,78 022-005105-020 1 cement resistor PN:SQM 0R05 5W J 25x13 R2 0024-00098-120 1 SMD resistor 0R 1/8W J 0805 TA[...]

  • Page 15

    Part Number Qt y Descri p tion Reference Desi g nato r Semiconductors 051-000600-100 1 Transistor NPN MPSW06RLRA TO-92 TAPING Q6 051-005600-100 1 Transistor NPN MPSW56RLRA MPQ TO-92 TAPING Q8 051-290700-100 4 Transistor P2N2907A TO-92 TAPING Q12,14,16,18 051-540101-000 1 Transistor PNP 2N5401 TO-92 TAPING Q3 051-640000-100 4 MOSFET N-Channel IRF640[...]

  • Page 16

    Part Number Qt y Descri p tion Reference Desi g nato r 024-100698-120 1 SMD resistor 100K 1/8W J 0805 TAPING R37 024-110598-120 2 SMD resistor 11K 1/8W J 0805 TAPING R74,99 024-200598-120 2 SMD resistor 20K 1/8W J 0805 TAPING R95,141 024-220398-120 2 SMD resistor 220R 1/8W J 0805 TAPING R136,167 024-220498-121 1 SMD resistor 2K2 1/8W J 0805 TAPING [...]

  • Page 17

    Part Number Qt y Descri p tion Reference Desi g nato r Miscellaneous 072-040229-000 1 Header, Right Angle PN:211-107-000-400 7PIN PIN2 072-040230-000 1 Header, Right Angle PN:211-111-000-400 11PIN PIN1 Pre/Input PCB Resistors 021-121598-100 1 metal film resistor 12K1 1/8W F TAPING R204 021-121698-100 1 metal film resistor 121K 1/8W F TAPING R214 02[...]

  • Page 18

    Part Number Qt y Descri p tion Reference Desi g nato r 031-100343-100 2 SMD capacitor 100pF/50V J 0805 NPO TAPING C222,204 031-100344-100 7 SMD capacitor 0u1/50V K 0805 X7R TAPING C227,232,233,229,234,235,230 031-220244-101U 1 SMD capacitor 0u022/50V K 0805 X7R TAPING C202 031-220344-100 2 SMD capacitor 220pF/50V J 0805 NPO TAPING C210,200 031-4701[...]

  • Page 19

    Part Number Qt y Descri p tion Reference Desi g nato r 074-030018-000 1 Toggle Switch PN:L103-T2-B4 SW202 Control Pot PCB 021-301498-100 2 metal film resistor 3K01 1/8W F TAPING R231,232 026-200595-269 1 VR 20Kx2 FREQ PN:RD163121R03D-20KBx2(EJ) R233 026-500595-254 1 VR 50K LEVEL P/N:RK163111R405-EJ R216 038-100363-300 2 MPE capacitor P:5 0u1/100V J[...]

  • Page 20

    Part Number Qt y Descri p tion Reference Desi g nato r 071-060280-500 4 nut washer 8#-32 zinc plated 8.5 t=3m/m For Transformer 071-100606-060 2 flat washer PN:WS3-2 OD=6 ID=3.t=2mm nylon For Q11,Q13 073-014044-000 1 Bracket 6.64"x3.50"x3.20" SPCC cadium plated 074-020018-000 1 Rocker Switch (Power) PN:RF1003-BB4-0 SW4 082-022241-000[...]

  • Page 21

    S120 PII Stu dio Serie s 20[...]

  • Page 22

    S120 PII Stu dio Serie s 21[...]

  • Page 23

    22 S120 PII Stu dio Serie s[...]

  • Page 24

    S120 PII Stu dio Serie s 23[...]

  • Page 25

    S120 PII Stu dio Serie s 24[...]

  • Page 26

    S120 PII Stu dio Serie s 25[...]

  • Page 27

    S120 PII Stu dio Serie s 26 Or part may be TL072CDR[...]

  • Page 28

    S120P II Studio ™ Series S120P II Studio ™ Series P ACKAGING 27[...]