JBL-SUB10-sub-sm 电路图 维修手册.pdf

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1、 Balboa Series SUB10 Powered Subwoofer Service Manual JBL Consumer Products 250 Crossways Park Dr. Woodbury, New York 11797 Rev0 10/2006 RadioFans.CN 收音机爱 好者资料库 - CONTENTS - BASIC SPECIFICATIONS .1 PACKING.2 DETAILED SPECIFICATIONS .3 CONNECTIONS.5 OPERATION .7 TEST SET-UP AND PROCEDURE.8 EXPLODED V

2、IEW/PARTS LIST9 AMPLIFIER BLOCK DIAGRAM10 DETAILED TROUBLESHOOTING.12 ELECTRICAL PARTS LIST .13 P.C.B. DRAWINGS.17 IC/TRANSISTOR PINOUTS.23 SCHEMATICS.24 BALBOA SUB10 SPECIFICATIONS Amplifier Power (RMS): 100 Watts Peak Dynamic Power *: 225 Watts Driver: 10 (254mm) Inputs: Line Level and LFE Crossov

3、er Frequency: Variable from 50Hz to 150Hz, 24 dB per octave Frequency Response: 30Hz 150Hz Dimensions (H x W x D): 19-3/4 x 14-1/16 x 14-3/4 (502mm x 357mm x 375mm) Weight: 35 lb/16kg JBL continually strives to update and improve existing products, as well as create new ones. The specifications and

4、details in this and related JBL publications are therefore subject to change without notice. * The Peak Dynamic Power is measured by recording the highest center-to-peak voltage measured across the output of a resistive load equal to minimum impedance of the transducer, using a 50Hz sine wave burst,

5、 3 cycles on, 17 cycles off. BALBOA series SUB10 1 RadioFans.CN 收音机爱 好者资料库 BALBOA series SUB10 2 RadioFans.CN 收音机爱 好者资料库 Balboa Sub 10100W Powered Sub/ Plate Amp LINE VOLTAGEYes/NoHi/Lo LineUnitNotes US 120VAC/60HzYes108-132VrmsNormal Operation EU 230VAC/50-60HzYes207-254VrmsNormal OperationNormal o

6、peration, MOMS required ParameterSpecificationUnitQA Test LimitsConditionsNotes Amp Section Type (120V Model)AB ABN/A120V System is Class AB Type (230V Model)GHN/A230V System is Class G Load Impedance (speaker)4OhmsN/ANominal System average impedance8.2OhmsReference Measured with AP using the ratio

7、method, sweeping with an ext. amp 10 to 500 Hz Average on the operating BW from 10 to 500Hz Rated Output Power 120V100Watts95 Nominal input voltage Rated Output Power 230V105Watts100 Nominal input voltage Avgerage value - RMS Dynamic power103WattsReference Nominal input voltage 3/20 50 Hz Burst unit

8、 driven 6dB above the sensitivity to drive it into max power, measured value is the average of the 4 first consecutive peaks Dynamic power HP134WattsReference Nominal input voltage Highest RMS of the first 4 consecutive peaks THD Rated Power0.5%122K filter THD 1 Watt0.1%0.322K filter DC Offset10mV-D

9、C50 Speaker Output Damping factor150DF100 Measured at amplifier board speaker out terminals, Output power 90 Watts THD 10K ohmsN/ANominal over the audio BWReference only Filters Low Pass (fixed or variable)Variable-2dB 2nd order variable + 2nd order fix, Range 50-110 Hz Subsonic filter (HPF)Fixed2dB

10、 Friend circuitFixed2dB Limiter (yes/no)YES-N/A THD at Max. Output PowerN/A-N/A Features LFE InputYESFunctional BW Limited to 500 Hz, Phase Switch (yes/no)YES-Functional Volume pot Taper (lin/log)LOG-Functional LP Variable Crossover controYESFunctional Range 50-110 Hz ATOYESFunctional fs Input Confi

11、guration Line In (L,R)L ,R-Functional RCA inputs: RED-WHT, L , R Summed to Mono Line level in LFELFEFunctionalSingle connector Signal Sensing (ATO) Auto-Turn-On (yes/no)YES-Functional ATO Input Frequency50HzFunctional ATO Level Line Level in (L,R1.5mVFunctional 2mV50Hz into Line Input w/ 1 ch. drive

12、n BALBOA series SUB10 3 ParameterSpecificationUnitQA Test LimitsConditionsNotes ATO Turn-on time T 15 Power on Delay time3sec.FunctionalAC Power Applied Transients/Pops ATO Transient5mV-peak10 Speaker Outputs Turn-on Transient50mV-peak100 Speaker OutputsAC Line cycled from OFF to ON Turn-off Transie

13、nt50mV-peak100 Speaker OutputsAC Line cycled from ON to OFF Efficiency Stand-by Input Power13Watts14 nom. line voltage Unit active, no signal applied (Green LED) Maximum allowable input power under nominal Input voltage and frequency, HOT or COLD operation. Power Cons/Amps.rated power 120V Model192

14、/ 1.89 Watts/Amps208 / 2.00 120V-60 Hz (Nom.line voltage)100 Watts 4 Ohms nominal line voltage Power Cons/Amps.rated power230V Model208 / 1.1Watts/Amps210 / 1.2 230V-50 Hz (Nom.line voltage)100 Watts 4 Ohms nominal line voltage Protection Short Circuit Protection YES-FunctionalDirect short at output

15、 Thermal Protection 65 deg. C-Functional1/8 max unclipped Power Temperature rise should not exceed 35K rise DC Offset ProtectionYES-FunctionalDC present at Speaker Out leadsRelay or crowbar (for driver/fire protection) Line Fuse Rating 120VAC2.5AmpsType-T or Slo BloExternal fuse with UL/SEMKO rated

16、holder 230VAC1.25AmpsType-T or Slo BloExternal fuse with UL/SEMKO rated holder BALBOA series SUB10 4 CONTROLS AND CONNECTIONS Rear Panel FUSE T 2.5A L 250V TYPE AC 120V 60HZ 200 Watts A Harman InternationalCompany 0Subwoofer-Level Control 1Crossover Adjustment 2Phase Switch 3LFE Input 4Line-Level In

17、puts 5Power Indicator LED 6Power Switch BALBOA series SUB10 5 SUBWOOFER CONNECTIONS Choose the Subwoofer Connection That Is Most Suitable for Your Receiver/Processor If you have a DolbyDigital or DTSreceiver/processor with a low-frequency-effects (LFE) or subwoofer output: If your receiver/processor

18、 does not contain a Dolby Digital or DTS processor but has a subwoofer output: SUBWOOFER OR LFE OUTPUT LR NOTE: Some receivers have one subwoofer output. In that case, it is recommended that you use a Y connector (not included) to maximize performance. BALBOA series SUB10 6 Power On Plug your subwoo

19、fers AC cord into a wall outlet. Do not use the outlets on the back of the receiver. Initially set the Subwoofer-Level Control to the “min” position. Turn on your sub by pressing the Power Switch on the rear panel. Turn on your entire audio system and start a CD or movie soundtrack at a moderate lev

20、el. Auto On/Standby With the Power Switch in the ON position, the LED on the rear panel will remain lit in red or green to indicate the On/Standby mode of the subwoofer. RED = STANDBY (no signal detected, amp off) GREEN = ON (signal detected, amp on) The subwoofer will automatically enter the Standb

21、y mode after approximately 10 minutes when no signal is detected from your system. The subwoofer will then power ON instantly when a signal is detected. During periods of normal use, the Power Switch can be left on. You may turn off the Power Switch for extended periods of nonoperation, e.g., when y

22、ou are away on vacation. Adjust Level Turn your Subwoofer-Level Control up to the “5” position (halfway). If no sound emanates from the subwoofer, check the AC-line cord and input cables. Are the connectors on the cables making proper contact? Is the AC plug connected to a “live” receptacle? Has the

23、 Power Switch been pressed to the “On” position? Once you have confirmed that the subwoofer is active, proceed by playing a CD, record or cassette. Use a selection that has ample bass information. Set the overall volume control of the preamplifier or stereo to a comfortable level. Adjust the Subwoof

24、er-Level Control until you obtain a pleasing blend of bass. Bass response should not overpower the room but rather be adjusted so there is a harmonious blend across the entire musical range. Many users have a tendency to set the subwoofer volume too loud, adhering to the belief that a subwoofer is t

25、here to produce lots of bass. This is not entirely true. A subwoofer is there to enhance bass, extending the response of the entire system so the bass can be felt as well as heard. However, overall balance must be maintained or the music will not sound natural. An experienced listener will set the v

26、olume of the subwoofer so its impact on bass response is always there but never obtrusive. Phase Control The Phase Switch determines whether the subwoofer speakers piston-like action moves in and out with the main speakers (0), or opposite the main speakers (180).Proper phase adjustment depends on s

27、everal variables such as room size, subwoofer placement and listener position. Adjust the phase switch to maximize bass output at the listening position. Crossover Adjustments The Crossover Adjustment Control determines the highest frequency at which the subwoofer reproduces sounds. If your main spe

28、akers can comfortably reproduce some low-frequency sounds, set this control to a lower frequency setting, between 50Hz and 100Hz. This will concentrate the subwoofers efforts on the ultradeep bass sounds required by todays films and music. If you are using smaller bookshelf speakers that do not exte

29、nd to the lower bass frequencies, set the Crossover Adjustment Control to a higher setting, between 120Hz and 150Hz. N NO OT TE E: This control will have no effect if the LFE Input is used. If you have a Dolby Digital or DTS processor/receiver, the Low-Pass Frequency is set by the processor/receiver

30、. Consult your owners manual to learn how to view or change this setting. OPERATION BALBOA series SUB10 7 BALBOA SUB10 Test Set Up and Procedure SYSTEM AURAL SWEEP TEST Equipment needed: Function/signal generator/sweep generator Integrated Amplifier Multimeter Speaker cables General Unit Function (U

31、UT = Unit Under Test) Switches/knobs on the amplifier faceplate: Low Pass Frequency Adjust full CW (150Hz) Phase switch either position 1. From the signal generator, Connect both right and left line level inputs (RCA) not the LFE jack - to signal generator and UUT. Use Y-cable if necessary from mono

32、 source. 2. On the amplifier, turn the LEVEL control full Counterclockwise (Min). 3. Turn on generator, adjust to 100mV, 50 Hz. 4. Plug in UUT; turn the power switch ON. Turn LEVEL control full Clockwise (Max). 5. LED should now be Green; immediate bass response should be heard and felt from rear po

33、rt tube opening. 6. Turn off generator, turn LEVEL control fully Counterclockwise (Min), disconnect RCA cable. Sweep Function 1. Follow steps 1-6 above, using a sweep generator as a signal source. 2. Sweep generator from 20Hz to 1kHz. Listen to the cabinet and drivers for any rattles, clicks, buzzes

34、 or any other noises. If any unusual noises are heard, remove woofer and test. Driver Function (Woofer) 1. Remove woofer from cabinet; detach + and - wire clips. 2. Check DC resistance of woofer; it should be 3.3 ohms 10%. 3. Connect a pair of speaker cables to driver terminals. Cables should be con

35、nected to an integrated amplifier fed by a signal generator. Turn on generator and adjust so that speaker level output is 5.0V. 4. Sweep generator from 20Hz to 1kHz. Listen to driver for any rubbing, buzzing, or other unusual noises. BALBOA series SUB10 8 EXPLODED VIEW BALBOA series SUB10 9 BALBOA s

36、eries SUB10 10 BALBOA series SUB10 11 BALBOA SUB10 (UL) AMP Troubleshooting Flow Chart no yes yes yes no yes yes LED red LED light green yes yes no yes yes no no yes yes yes no no yes yes yes no yes yes AMP no signal out Dc voltage check Vcc Check+/-15VDC Led light green or red Check Fuse,Transforme

37、r, D110, etc Check RY101,D102,Q113,Q114 etc Check Q107,Q108,Q105, Q106,Q103,Q104,U101,etc Check ,+VCC& -VCC DC voltage Check U101,Q115,Q116,R138 etc Check Q117,118,119,D109 etc Check,Q206,Q207,U203 etc Check U202 pin14 signal Check U201 pin14 signal Test R121,R122 signal Check P102 signal The Amp as

38、sY OK, END CheckU201,U202,VR201 VR202. etc Check J123,J124 etc Check limiter board C304 Check U301,R343,R344 , C340,Q301,Q302, etc Set R138 to R140S Voltage is 0.51VDC BALBOA series SUB10 12 Balboa SUB10 (120v) Electrical Parts List Part NumberDescriptionQtyReference Designator POWER/MAIN PCB Resist

39、ors 110-14472j26-eResistor 4.7K 1/4W 5% CF 26mm (RoHS)2R147,R150, 110-14681j26-eResistor 680 1/4W 5% CF 26mm (RoHS)2R148,R151, 110-16101j26-eResistor 100 1/6W 5% CF 26mm (RoHS)1R120, 110-16102j26-eResistor 1K 1/6W 5% CF 26mm (RoHS)1R124, 110-16103j26-eResistor 10K 1/6W 5% CF 26mm (RoHS)1R134, 110-16

40、105j26-eResistor 1M 1/6W 5% CF 26mm (RoHS)1R143, 110-16123j26-eResistor 12K 1/6W 5% CF 26mm (RoHS)2R135,R139, 110-16152j26-eResistor 1.5K 1/6W 5% CF 26mm (RoHS)6R103,R123,R136,R137,141,R142, 110-16153j26-eResistor 15K 1/6W 5% CF 26mm (RoHS)4R118,R145,R152,R154, 110-16154j26-eResistor 150K 1/6W 5% CF

41、 26mm (RoHS)1R131, 110-16181j26-eResistor 180 1/6W 5% CF 26mm (RoHS)2R111,R114, 110-16182j26-eResistor 1.8K 1/6W 5% CF 26mm (RoHS)1R153, 110-16223j26-eResistor 22K 1/6W 5% CF 26mm (RoHS)3R128,R129,R133, 110-16332j26-eResistor 3.3K 1/6W 5% CF 26mm (RoHS)3R106,R107,R144, 110-16392j26-eResistor 3.9K 1/

42、6W 5% CF 26mm (RoHS)2R105,R108, 110-16393j26-eResistor 39K 1/6W 5% CF 26mm (RoHS)1R126, 110-16470j26-eResistor 47 1/6W 5% CF 26mm (RoHS)4R112,R113,R115,R116, 110-16471j26-eResistor 470 1/6W 5% CF 26mm (RoHS)1R140, 110-16472j26-eResistor 4.7K 1/6W 5% CF 26mm (RoHS)3R110,R125,R130, 110-16473j26-eResis

43、tor 47K 1/6W 5% CF 26mm (RoHS)1R101, 110-16560j26-eResistor 56 1/6W 5% CF 26mm (RoHS)1R117, 110-16563j26-eResistor 56K 1/6W 5% CF 26mm (RoHS)1R104, 110-16682j26-eResistor 6.8K 1/6W 5% CF 26mm (RoHS)1R109, 110-10821jk2-eResistor 820 1W 5% 10mm (RoHS)1R132, 110-122r2j15-eResistor 2.2 1/2W 5% 15mm (RoH

44、S)1R127, 110-20331jk2-eResistor 330 2W 5% 5mm(RoHS)2R146,R149, 113-50r10j10-ecement Resistor 0.1 5W 5% (RoHS)2R121,R122, 114-03302m0-esemi-fixed Resistor 3K 0.3W 20%(RoHS)1R138, Capacitors 130-2b102k503-edisc capacitor 1000P 50V 10% (RoHS)1C116, 130-3f104z503-edisc capacitor 0.1U 50V +80/-20% (RoHS)

45、4C108,C113,C115,C119, 130-3f473m503-edisc capacitor 0.047U 50V 20% (RoHS)1C106, 130-sl101k503-edisc capacitor 100P 50V SL 10% (RoHS)2C139,C140, 132-104j503-emylar capacitor 0.1U 50V 5% (RoHS)1C107, 132-223ja03-emylar capacitor 0.022uF 100V 5% (RoHS)4C124,C125,C126,C128, 135-3105m50-eelectrolytic cap

46、. 1U 50V 20% (RoHS)2C105,C112, 135-3107m16-eelectrolytic cap. 100uF 16V 20% (RoHS)3C109,C117,C120, 135-3226m50-eelectrolytic cap. 22U 50V 20% (RoHS)2C114,C118, 135-3227m10-eelectrolytic cap. 220U 10V 20% (RoHS)2C129,C130, 135-3227m16-eelectrolytic cap. 220U 16V 20% (RoHS)1C111, 135-3476m25-eelectrol

47、ytic cap. 47U 25V 20% (RoHS)1C103, 132-223ja03-emylar capacitor 0.022uF 100V 5% (RoHS)2C123,C127, 135-3107m16-eelectrolytic cap. 100uF 16V 20% (RoHS)1C110, 135-4688m50-eelectrolytic cap. 6800U/50V 20%D25X45mm (RoHS)2C121,C122, Semiconductors 192-027c1815gr-etransistor 2SC1815GR TOSHIBA(RoHS) NPN5Q10

48、2,Q111,Q112,Q113,Q118, 192-028a1015gr-etransistor 2SA1015GR TOSHIBA(RoHS) PNP2Q114,Q116, 192-1572n5551-e*transistor FSC 2N5551 (RoHS) NPN2Q103,Q109, 192-1582n5401-etransistor FSC 2N5401 AI-PNP 350V 500mA TO-92 (RoHS) PNP2Q104,Q110, 197-031n4148-ediode 100mA 75V SIGNAL 1N4148 ROHM (RoHS)4D101,D103,D105,D108, 199-15000335-ezener diode 3.3V 1/2W 52mm (RoHS)1D102, 199-15000625-ezener diode HZ6C2 RENESAS (RoHS)2D106,D107, 199-15001605-ezener diode HZ16-2 RENESAS (RoHS)1D109, BALBOA series SUB10 13 Part NumberDescriptionQtyReference