Jbl scs 150 si service manual
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- CONTENTS - BASIC SPECIFICATIONS……………….……….……………….1 DETAILED SPECIFICATIONS ……..………………..…………..2 CONNECTIONS…………… …..……………...…………..……...3 OPERATION………………………………………………………. 6 BASIC TROUBLESHOOTING……..……….…………………….7 EXPLODED VIEW ……..……….………………………………….8 TEST SET-UP AND PROCEDURE……..……….………..……..9 PCB DRAW INGS…………… ……..………………..…….……..10 MECHANICAL/SATELLITE PARTS LIST………………………16 ELECTRICAL PARTS LIST ……………....……………….…….17 IC/TRANSISTOR PINOUTS……..…….…………………..…….22 SCHEMATICS …………………………………………..…….23 PACKING..………….………………………………..…………….26 SCS150SI/SCS160SI/SCS180.6S Systems Frequency Response 30Hz – 20kHz (–6dB) Satellites Recommended Power 10 – 100 watts Impedance 8 ohms nominal Sensitivity 88dB @ 1 wa tt/1 meter Tweeter One 1/2" (13mm) titanium laminate dome, video-shielded Midrange Dual 3" (75mm) driv ers, video- shielded Dimensions (H x W x D) 8-1/8" x 3-1/2" x 3-7/8" (206mm x 89mm x 99mm) Weight 2.65lb/1.2kg Center Recommended Power 10 – 100 watts Impedance 8 ohms nominal Sensitivity 88dB @ 1 wa tt/1 meter Tweeter One 1/2" (13mm) titanium laminate dome, video-shielded Midrange Dual 3" (75mm) driv ers, video- shielded Dimensions (H x W x D) 3-1/2" x 8-1/8" x 3-7/8" (89mm x 206mm x 99mm) Weight 2.65lb/1.2kg Subwoofer Amplifier 150 watts RMS Woofer 10" (254mm) woofer, bass-reflex enclosure Dimensions (H x W x D) 17-3/4" x 15-3/4" x 16-3/4" (451mm x 400mm x 426mm) Weight 35 lb/15.9kg Occasional refinements may be made to existing products without notice but will always meet or exceed original specifications unless otherwise stated SCS150SI/SCS160SI/SCS180.6S 1
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150W Powered Sub/ Plate Amp LINE VOLTAGE Yes/No Hi/Lo Line Unit Notes US 120vac/60Hz Yes 108-132 Vrms Normal Operation Asia 100vac/50Hz Yes 90-110 Vrms Normal Operation Paramete r Specification Unit QA Test Limit s Conditions Notes Amp Section Type (Class AB, D, other) D D n/a Load Impedance (speaker) 4 Ohms n/a Nominal Rated Output Power 150 Watts 145 1 input driven THD@ Rated Power 0.08 % 1 22k filter THD @ 1 Watt 0.1 % 0.5 22k filter DC Offset 10 mV-DC 20 @ Speaker Outputs Damping factor >100 DF 30 Measured at speaker terminals, Output power 140 Watts THD 0.1 % Input Sensitivity Input Frequency 50 Hz 50 Nominal Freq. 1 input driven Line Input (L&R) 250 mVrms ±2dB To Rated Power 1 input driven LFE Input 145 mVrms ±2dB To Rated Power LFE input driven only Speaker/Hi Level Input 2 Vrms ±2dB To Rated Power (-20 dB below Line In)...1 input driven Signal to Noise SNR-A-Weighted 100 dBA 85 rel. to rated power A-Weighting filter SNR-unweighted 90 dBr 80 rel. to rated power 22k filter SNR @ 1W-unweighted 60 dBr 55 rel. to 1W Output 22k filter Residual Noise Floor 1 mVrms 2 Volume @max, using RMS reading DMM/VOM (or A/P) 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 >15 K ohms n/a Nominal Speaker/Hi Level Input 4.7 K ohms n/a Nominal Filters Left & Right Low Pass fixed Hz -- ±2dB Slope & Q 4th dB/Octave n/a LFE Low Pass fixed Hz -- ±2dB Slope & Q 2nd dB/Octave n/a Subsonic filter (HPF) Hz -- ±2dB Slope & Q 2nd dB/Octave n/a Limiter YES -- n/a Features LFE Input YES functional BW Limited to 500 Hz Volume pot Taper (lin/log) log -- functional ATO YES functional Signal Sensing (ATO) ATO test Frequency 50 Hz functional ATO Line Level 2 mV functional 2mV@50Hz into Line Input w/ 1 ch. driven ATO Speaker level input 50 mV fucntional 50mV@50Hz into Line Input w/ 1 ch. driven ATO Turn-on time 5 ms functional Amp connected and AC on, then input signal applied Auto Mute/ Turn-OFF Time 15 minutes functional T before muting, after signal is removed Auto turn of time (T) must be 10 > T <15 Power on Delay time 3 sec. functional AC Power Applied Transients/Pops ATO Transient 5 mV-peak 10 @ Speaker Outputs Turn-on Transient 50 mV-peak 100 @ Speaker Outputs AC Line cycled from OFF to ON Turn-off Transient 50 mV-peak 100 @ Speaker Outputs AC Line cycled from ON to OFF Efficiency Stand-by Input Power 14 Watts 16 @ nom. line voltage Maximum allowable input power under nominal Input voltage and frequency, HOT or COLD operation. Power Cons.@rated power 230 Watts 250 @ nom. line voltage 140 Watts @ 4 Ohms nominal line voltage Protection Short Circuit Protection YES -- functional Direct short at output Thermal Protection 65 deg. C -- functional @1/8 max unclipped Power Temperature rise should not exceed 35K rise DC Offset Protection YES -- functional DC present at Speaker Out leads Relay or crowbar (for driver/fire protection) Line Fuse Rating US Version 3.15 Amps Type-T or Slo Blo External fuse with UL/SEMKO rated holder SCS150S I/SCS160S I/SCS180. 6S 2