JBL Studio S120PII Service Manual Download Page 26 | Manualshive

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S120PII Studio Series

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Summary of Contents for Studio S120PII

Page 1: ...Studio Series S120PII Powered Subwoofer Service Manual JBL Consumer Products 250 Crossways Park Dr Woodbury New York 11797 Rev3 2 2006 ...

Page 2: ...IONS Amplifier Power RMS 400 Watts Driver 12 PolyPlas polymer coated cellulose fiber 4 4 ohms DCR Inputs Line Level switchable to LFE BassQ and Speaker Level Outputs BassQ and Speaker Level High Pass Low Pass Frequency Continuously variable from 50Hz 150Hz High Pass Frequency 150Hz when using speaker level outputs Frequency Response 22Hz Low pass crossover setting Dimensions H x W x D 17 3 16 x 16...

Page 3: ... Residual Noise Floor 1 mVrms max 2 Volume max w A P Swept Bandpass Measurement Line freq harmonics Input Impedance Line Input L R LFE 10K ohms n a Nominal Speaker Hi Level Input 10K ohms n a Nominal Filters LP 4th order fixed 50 150 Hz 10 2nd order variable and 2nd order fixed Subsonic filter HPF 3rd Order Fixed LFE Low pass 2nd order Fixed Hz 10 LFE input driven only Limiter THD at Max Output Po...

Page 4: ...D operation Power Cons rated power 400 Watts 400 nom line voltage 250 Watts 6 0 Ohms nominal line voltage Protection Short Circuit Protection YES functional Direct short at output Amplifier should resume operation after short circuit condition removal Thermal Protection YES functional 1 8 max unclipped Power Temperature rise in accessible metal parts should not exceed 35K rise for domestic version...

Page 5: ...rocessing where the receiver processor does not have a subwoofer output or a volume controlled preamp line level output If your receiver features bass management capabilities that require you to configure your speaker settings make sure to set your left and right front speakers to LARGE Connect your receiver or amplifier s front left and right speaker terminals to the left and right terminals on t...

Page 6: ...may connect the subwoofer output on your receiver preamplifier to either the left or right Line Level input on the subwoofer It makes no difference which jack you choose Connect each speaker to the corresponding speaker terminals on your receiver or amplifier Make sure your receiver or processor is configured cor rectly Make sure that the sub woofer is configured as On Note for advanced users If y...

Page 7: ...at you have configured your surround sound processor for Subwoofer On or LFE On The front left front right center and rear speakers should be set to Small or Large depending on their size and frequency response Consult your receiver s or processor s owner s manual HIGH LEVEL IN HIGH LEVEL OUT L R L R IN OUT R L CROSSOVER FREQUENCY BASSQ See owner s manual before use LINE LEVEL IN For LFE use R or ...

Page 8: ...ariables such as room size subwoofer placement type of main speakers and listener position Adjust the subwoofer level so that the volume of the bass information is pleasing to you When using a Dolby Digital DTS receiver adjust the LFE level on the receiver to 0dB and then adjust the subwoofer Level Control for the desired amount of bass Crossover Adjustments The Crossover Frequency Control determi...

Page 9: ...s and there is no sound from the subwoofer Check that receiver amplifier is on and a source is playing Check that powered subwoofer is plugged into an active electrical outlet and that both Power switches are on Check all wires and con nections between receiver amplifier and subwoofer Make sure all wires are connected Make sure none of the wires are frayed cut or punctured Review proper operation ...

Page 10: ...astic Amp Cover from the faceplate 4 Phillips screws 3 The area of concern is on the Class D Driver PCB Small Upright PCB on the MAIN AMP PCB A long thin soldering iron tip is recommended Care must be taken not to damage surrounding components like large inductor pair L8 4 Locate remove D60 RLS4148 diode replace with a 3 6V zener diode JBL Part ZMM5227BCT ND When replacing D60 the polarity of the ...

Page 11: ...S120PII Studio Series 10 S120PII BLOCK DIAGRAM ...

Page 12: ... Foot Assembly 338037 001 Top Plate 337898 001 Port Tube 337859 001 Amplifier Assembly Not for Sale Top Plate Gasket 338012 001 LED Indicator Assembly 335650 001 4 Grille Retainers 333249 001 12 Screws PB HXS 8 x 75 903802 012 S120PII Studio Series S120P II Studio Series EXPLODED VIEW 11 ...

Page 13: ...tch OFF 7 Connect one pair of speaker cables to one set either R or L of the Speaker Input terminals on UUT Cables should be connected to an integrated amplifier fed by the signal generator 8 Turn on signal generator and adjust so that speaker level output at the amplifier is 2 5V 50 Hz 9 Turn power switch ON turn LEVEL control full Clockwise Max 10 Bass response should be heard and felt from port...

Page 14: ...120 2 SMD resistor 47K 1 8W J 0805 TAPING R3 171 024 510498 120 5 SMD resistor 5K1 1 8W J 0805 TAPING R48A 48B 48C 48D 48E 024 910498 120 1 SMD resistor 9K1 1 8W J 0805 TAPING R63 025 010300 000 1 Thermistor TSE 103 K L 50mm TH1 Capacitors 031 100184 100 2 SMD capacitor 0u01 250V K 0805 X7R TAPING C104 119 031 100244 100 2 SMD ceramic capacitor 0u01 50V K 0805 X7R TAPING C27 28 031 100344 100 6 SM...

Page 15: ...54 540100 100 1 SMD PNP transistor MMBT5401 LT1 TAPING Q1 054 555100 100 1 SMD NPN Transistor MMBT5551 LT1 TAPING Q2 Miscellaneous 072 040039 000 1 Terminal PCB TYPE PC205 t 0 8m m T205MA T2 072 040064 000 2 Terminal PCB TYPE PC250 t 0 8 T250MA T1 TER6 072 040096 000 2 Terminal T187MA PCB TYPE t 0 8mm PC187 0 8 TER5 TER7 072 040250 000 1 Connector 7 PIN JS 1001 7 P 2 5mm P1 073 111003 000 1 Shorti...

Page 16: ...44 100 6 SMD capacitor 0u1 50V K 0805 X7R TAPING C75 78 82 85 031 180344 100 2 SMD capacitor 0u18 50V K 0805 X7R TAPING C80 83 031 470244 102 4 SMD capacitor 0u047 50V K 0805 X7R TAPING C93 94 101 124 031 560243 100 4 SMD capacitor 56pF 50V J 0805 NPO TAPING C92 102 105 125 031 560343 102 1 SMD capacitor 560pF 50V J 0805 NPO TAPING C79 034 100625 303 1 Electrolytic capacitor 100uF 25V M R P 2 5 TA...

Page 17: ...8W J 0805 TAPING R251 255 024 150598 120 1 SMD resistor 15K 1 8W J 0805 TAPING R223 024 200598 120 1 SMD resistor 20K 1 8W J 0805 TAPING R256 024 220798 120 1 SMD resistor 2M2 1 8W J 0805 TAPING R244 024 240598 120 1 SMD resistor 24K 1 8W J 0805 TAPING R224 024 270498 120 1 SMD resistor 2K7 1 8W J 0805 TAPING R237 024 300398 120 1 SMD resistor 300R 1 8W J 0805 TAPING R258 024 300598 120 1 SMD resi...

Page 18: ...TL072CDR SO 8 TI TAPING U202 203 204 200 201 205 054 033904 100 2 SMD TR MOTOROLA MMBT3904LT1 SOT23 TAPING Q203 204 054 050601 100 1 SMD ZENER DIODE 5 6V SOT 23 BZX84C5V6 TAPING D210 054 211400 100 1 SMD NPN Transistor DTC114EK SMT3 TAPING Q202 054 414803 100 12 SMD diode LL4148 TAPING D215 212 209 207 205 200 201 202 203 204 216 217 Miscellaneous 072 040008 000 1 4P terminal housing JS 1001 04 P4...

Page 19: ...08 062001 000 4 Gasket 196x10mm t 1mm COVER Front x2 COVER Rear x2 008 063001 000 4 Gasket 320x10mm t 1mm COVER front x2 COVER Rear x2 042 014107 001 1 Transformer 120V 60Hz EI 125 YT 9313 1 Power 061 015002 000 2 Knob P N 446077 18teeth D 15 1 H 14 5 Knob P 400W w white indicator 061 100016 000 3 Nylon partition PN BCMS 8 L 8mm NYLON 66 UL For Power PCB 061 314002 000 2 Strain Relief P N SB4F 2 F...

Page 20: ...H2P HWAFER 082 072620 000 1 Wire 26 UL1007 L 200mm XH7Px2 blk whtx6 086 021836 000 1 Double insulated cable SPT 2 18 12feet T187 Power cord 181 911600 158 1 Wire 16AWG UL1007 blk L 720mm 181 911622 148 1 Wire 16AWG UL1007 red L 720 181 921600 000 1 BLKWire 16 UL1015 both ends T187 trans sleeve L 140mm 181 921699 000 1 WHT Wire 16 UL1015 both ends T187 transp sleeve L 160mm LED Assy On the Cabinet ...

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Page 27: ...S120PII Studio Series 26 Or part may be TL072CDR ...

Page 28: ...S120PII Studio Series S120P II Studio Series PACKAGING 27 ...

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