S412P STUDIO SERIES sm电路图.pdf

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1、 STUDIO SERIES S412P 4 - way POWERED SPEAKER SYSTEM SERVICE MANUAL JBL Consumer Products 250 Crossways Park Dr. Woodbury, New York 11797 Rev 0 2/2000 RadioFans.CN 收音机爱 好者资料库 - CONTENTS - GENERAL SPECIFICATIONS.2 AMPLIFIER SPECIFICATIONS.3 SET-UP GUIDE.4 CONTROLS.6 TROUBLESHOOTING.7 MECHANICAL PARTS

2、LIST.8 CABINET EXPLODED VIEW.9 WIRING/PASSIVE SCHEMATIC DIAGRAMS.10 AMPLIFIER EXPLODED VIEW.11 BLOCK DIAGRAM.12 INTEGRATED CIRCUIT DRAWINGS.13 ELECTRICAL PARTS LIST.14 P. C. BOARDS.17 SCHEMATICS.19 PACKAGING.22 RadioFans.CN 收音机爱 好者资料库 S412P GENERAL ACOUSTIC & ELECTRICAL SPECIFICATIONS Nominal Impeda

3、nce8 ohms Max Amp Power250 watts* Frequency Response32Hz 20kHz Sensitivity91 dB (1 watt 1 meter) Crossover Frequency200Hz, 850Hz, 3500Hz Subwoofer Amplifier Output200 watts AURAL SWEEP TEST SPECIFICATIONS: A. System Aural Sweep Test 6.0V Input 20 Hz to 20 kHz B. L.F. Aural Sweep Test 6.0V Input 20 H

4、z to 500 Hz C. M.B.F. Aural Sweep Test 5.0V Input 100 Hz to 1 kHz D. M.F. Aural Sweep Test 4.0V Input 500 Hz to 4 kHz E. H.F. Aural Sweep Test2.83V Input 3 kHz to 20 kHz PHYSICAL SPECIFICATIONS Enclosure dimensions:44 x 16 x 13 3/8” (H x W x D) 1118 x 406 x 340mm Weight86lbs./39.1kg Each *The maximu

5、m recommended amplifier power rating will ensure proper system headroom to allow for occasional peaks. We do not recommend sustained operation at these maximum power levels. Occasional refinements may be made to existing products without notice but will always meet or exceed original specifications,

6、 unless otherwise stated. 2 RadioFans.CN 收音机爱 好者资料库 PRODUCT: JBL S412P LINE VOLTAGEYes/NoHi/Lo LineNom.UnitNotes US 120vac/60HzYes108-132120VrmsNormal Operation EU 230vac/50-60HzYes207-264230VrmsNormal operation, MOMS required ParameterSpecificationUnit QA Test LimitsConditionsNotes Amp Section Type

7、 (Class AB, D, other)Gn/an/aClass D Preferred.Sink required for Class AB Load Impedance (speaker)4Ohmsn/aNominalZ-curve required Rated Output Power 150 Watts 130 1 input driven THD Rated Power 0.1 % 1 22k filter THD 1 Watt0.3%0.522k filter DC Offset10mV-DC20 Speaker Outputs Damping factor150DF100Mea

8、sured at amplifier board Measured at the speaker connector. 130 Watts THD 7550Measured at speaker cable Input Sensitivity Input Frequency30Hz30Nominal Freq. LFE input1.05Vrms2dBTo 140 Watts Speaker/Hi Level Input23.66Vrms2dBTo 140 Watts Signal to Noise SNR-A-Weighted100dBA90relative to rated powerA-

9、Weighting filter SNR-unweighted70dBr70relative to rated power22k filter SNR rel. 1W-unweighted65dBr60relative to 1W Output22k filter Residual Noise Floor1mVrms5 Volume max, using RMS reading DMM/VOM (or A/P) Residual Noise Floor1.5 mVrms(max)4 Volume max, w/ A/P Swept Bandpass Measurement (Line freq

10、.+ harmonics) Input Impedance Line Input20kohmsn/aNominal Speaker/Hi Level Input10kohmsn/aNominal Filters Speaker in LP 2nd order fixedFixedSee AP curves Subsonic filter (HPF)See AP curves LFE Low pass 2nd orderFixedLFE input driven onlySee AP curves Limiter THD at Max. Output Powern/an/afunctional

11、Maximum Output PowerMaximum THD as a result of limiting. Features- Auto - On selection switchYES-functional Refer to ATO section LED On-Off switchYES-functional Dual LED indicator Volume pot Taper (lin/log)LOG-functional A Taper Input Configuration Line In LFEYES-functional Single RCA jack Spkr/Hi L

12、evel InYES-functional Signal Sensing (ATO) Auto-Turn-On (yes/no)YESfunctional Auto - on selection switch in Auto ATO Input test frequency30Hzfunctional ATO Level LFE Input4mVfunctional ATO Level Speaker in100mVfunctional ATO Turn-on time5msfunctional Amp connected and AC on, then input signal applie

13、d Auto Mute/ Turn-OFF Time15minutes17 T before muting, after signal is removedMaximum S412P AMPLIFIER SPECIFICATIONS 3 4 SPEAKER CONNECTIONS + + + Speaker Outputs LEFTRIGHT + CONNECTION TIPS SPEAKER-LEVEL CONNECTIONS Your S412P speakers should be connected to your receiver in two ways (at speaker le

14、vel and line level) in order to achieve the best performance, especially when listening to program material recorded in digital 5.1 formats, such as Dolby* Digital and DTS. Connect the left-front and right-front speaker terminals on your receiver or amplifier to the 5-way binding posts on the back o

15、f each S412P speaker. Remember to maintain the correct polarities (“+” to “+” and “” to “”). The S412P uses a red binding post for “+” and black for “”. These connections will provide full-range sound to all four transducers, and you should ALWAYS make these connections. If your receiver or amplifie

16、r does not have a line-level subwoofer output, then you do not need to make any other connections, and you should skip to the section titled “Amplifier Controls.” Speakers and electronics terminals have corre- sponding (+) and () terminals. It is important to connect both speakers identically: (+) o

17、n the speaker to (+) on the amplifier and () on the speaker to () on the amplifier. Wiring “out of phase” results in thin sound, weak bass and a poor stereo image. Studio Series-S412P OM 10/19/99 1:00 PM Page 4 5 RECEIVER/AMPLIFIER LEFT S412PRIGHT S412P LEFTRIGHT Y-Connector (not included) LFE INLFE

18、 IN SUBWOOFER OUT Each S412P speaker is also equipped with a line-level Low-Frequency Effects (LFE/Subwoofer) input for superior performance with digital 5.1 surround formats. The .1 LFE channel contains additional low-frequency information not found in the left- and right-front channels. The LFE in

19、put works with the full-range speaker-level input to provide the dynamics and effects that your favorite filmmakers intended. You will need to use a Y-Connector (not included) with one male connector and two female connectors to connect the line-level subwoofer output on your receiver/amplifier to t

20、he LFE/Subwoofer inputs on the S412P speakers. Plug the male connector into the subwoofer output on your receiver or amplifier, and connect each of the two female connectors to extension RCA patch cords. Then plug each patch cord into the LFE/Subwoofer input of the left and right S412P speakers. Not

21、e: If your receiver has separate left and right line-level subwoofer (or LFE) output jacks, you do not need to use a Y-Connector. LINE-LEVEL CONNECTIONS Studio Series-S412P OM 10/19/99 1:00 PM Page 5 6 AMPLIFIER CONTROLS LFE Level Control: Allows you to adjust the volume of the low-frequency effects

22、/ subwoofer channel to suit your room acoustics or tastes. However, it only affects the LFE signal. If you are not using the LFE input, the LFE level control will not operate. Configuring Your Receiver: You should choose the “Large” or “Wide” option for the left- and right-front speakers so that ful

23、l low- frequency information will be sent to the S412P speakers. Make sure that you also configure your receiver for “Subwoofer On” or “LFE On.” In this case, the LFE/Subwoofer signal will consist only of the .1 (bass)channel. The LFE signal level can be adjusted by using the LFE level on the S412P

24、amplifier panel. For initial setup, you should set the level controls on both speakers at minimum (full counterclockwise rotation). With 5.1 source material playing, advance the level controls on each speaker slowly until the desired amount of effects channel is present. This is a rather subjective

25、adjustment and should be made using a variety of program materials. If you choose, you can use the “Small” or “Narrow” setting on your receiver. In this case, all of the information below 80Hz will be fed to the LFE/ Subwoofer input on the S412P. Now the level control operates through- out the entir

26、e bass spectrum below 80Hz, not just within the .1 channel portion. This configuration is generally unnecessary but, in certain room-placement conditions, it allows greater bass-level control. Power Switches: The main “Power” switch is simply marked “On” and “Off.” Turn this switch on to commence op

27、eration of the powered amplifier after you have plugged the power cord into an AC outlet. The second switch is labeled “On/Off” and has two positions. Placing the switch in the “Auto” position puts the amplifier in Standby mode. In this mode the speaker will be able to automatically sense an incomin

28、g signal, which will trigger it to turn fully on. The speaker will also automatically switch itself back into Standby mode after approximately 10 to 15 minutes have passed without its sensing a signal. We recommend that you leave this switch in the “Auto” position for most applications. If you will

29、be away from home or not using your speakers for an extended period of time, you should turn the speakers off by using the main power switch. The Manual position will bypass the auto-sensing feature and leave the amplifier on until turned off with the main switch or returned to auto sensing by choos

30、ing the auto position. LED Indicators: When your speaker is turned on but is not receiving a signal, the LEDs glow red to let you know that your speaker is plugged in. When the speaker is receiving a signal, the LEDs glow green. We have provided a convenient “Green On LED” switch on the back panel t

31、o allow you to shut off the front LEDs should they interfere with your enjoyment of a movie. This switch has no effect when the LEDs are in red mode. MANUAL LFE LEVEL MinMax AUTO ON OFF S412P LFE IN ON OFF GREEN “ON”LED POWERON/OFF CAUTION RISK OF ELECTRIC SHOCK DO NOT OPEN “WARNING: TO REDUCE THE R

32、ISK OF FIRE OR ELECTRIC SHOCK, DO NOT EXPOSE THIS APPLIANCE TO RAIN OR MOISTURE.” “AVERTISSEMENT: POUR PRVENIR LES RISQUES DINCENDIE OU DE CHOC ELECTRIQUE, EVITER DEXPOSER CET APPAREIL A LA PLUIE OU A LHUMIDITE.” This area is designed to become quite warm during normal operation. Studio Series-S412P

33、 OM 10/19/99 1:00 PM Page 6 7 TROUBLESHOOTING If there is no sound from any of the speakers: Check that receiver/ amplifier is on and that a source is playing. Review proper operation of your receiver/amplifier. If there is no sound coming from one speaker: Check the “Balance” control on your receiv

34、er/amplifier. Check all wires and connections between receiver/amplifier and speakers. Make sure all wires are connected. Make sure none of the speaker wires are frayed, cut or punctured. If the system plays at low volumes but shuts off as volume is increased: Check all wires and connections between

35、 receiver/amplifier and speakers. Make sure all wires are connected. Make sure none of the speaker wires are frayed, cut or punctured. If more than one pair of main speakers is being used, check the minimum impedance requirements of your receiver/amplifier. If there is no (or low) bass output: Make

36、sure the polarities (+ and ) of the left and right “Speaker Inputs” are connected properly. Make sure that the speaker is plugged into an active electrical outlet and switched on, and that the green LEDs are displayed. If you used the LFE input and there is no sound from the subwoofer: Check that re

37、ceiver/ amplifier is on and that a source is playing. Make sure that the speaker is plugged into an active electrical outlet. Check all wires and connections between receiver/amplifier and speakers. Make sure all wires are connected. Review the “Line-Level Connections” section on page 5 of this manu

38、al and make sure that a single RCA patch cord is connected to each loudspeaker from the Y-Connector plugged into the receiver/amplifiers subwoofer output. Make sure none of the speaker wires are frayed, cut or punctured. Review proper operation of your receiver/amplifier, including making sure that

39、you have configured your receiver so that the sub- woofer output is active. If you are using the S412P LFE/Subwoofer input and the bass level decreases (instead of increasing) when you turn the LFE/ Subwoofer Level knob clockwise: Recheck to make sure that your receiver or amplifier-speaker outputs

40、are correctly connected to the S412P speaker inputs (gold-plated binding posts), (+) to (+) and () to (). The S412P (+) terminal has a red stripe and is located on the right-hand side, below the letter “L” of the molded JBL logo, when looking directly at the back of the S412P. If the wires are conne

41、cted properly, the confusion may be attributable to the design of your receiver/ amplifier. Your unit may have inverting inputs, which reverse the polarity of the signal between the inputs and outputs of the amplifier. To check if this is the case, reverse the speaker con- nections for ALL S412Ps in

42、 your system (and disconnect any other speakers in the system) so that the receiver/amplifiers (+) connector is connected to each S412Ps () (black stripe) speaker connector. If you do this and the S412Ps function properly (bass increases as you turn your LFE/Subwoofer level- control knobs clockwise)

43、, your receiver/amp uses inverting inputs. This is not a problem. Simply connect all of the speakers in your system the same way, with the receiver or amplifiers (+) terminal to the speakers () terminal, and the receiver or amplifiers () terminal to the speakers (+) terminal. Studio Series-S412P OM

44、10/19/99 1:00 PM Page 7 S412P MECHANICAL PARTS LIST (See following page) 1CabinetS412P (Not for Sale) 2Grille335417-002 3Low Frequency Transducer12” PolyPlas cone shielded DC Resistance 5.6 ohms 10% 335151-001 4Mid-Bass Transducer6.5” PolyPlas cone shielded DC Resistance 4.8 ohms 10% 335148-001 5Mid

45、 Frequency Transducer4” Polyplas shielded DC Resistance 4.3 ohms 10% 335439-001 6High Frequency Transducer1” Titanium Dome shielded DC Resistance 3.4 ohms 10% 335663-001 7Crossover Network335678-001 8Faceplate335157-001 9Amp assembly335679-001 10Grille retainers (6)333249-001 11Faceplate gasket33566

46、7-001 12Port Tube335155-001 13Flower pot334072-001 14Foot (4)335429-001 15Bump-on pads for feet (4)330104-001 16Terminal cup335471-002 S1 Screw (tweeter)(2) #6 x .375” PPH903401-006 S2Screw (faceplate)(6)#6 x .75” HXS-HD908302-012 S3Screw (midrange)(4)#6 x .75” PPH61867 S4Screw (mid-bass)(6)#8 x .75

47、 HXS-HD903802-012 S5Screw (woofer)(8)#8 x .75 HXS-HD903802-012 S6Screw (terminal cup)(4)#6 x .75” PPH63563 S7Screw (network)(4)#6 x .75” PPH63563 S8Screw (feet) (4)#8 x 1” HXS-HD BLK72216 8 EXPLODED VIEW EXPLODED VIEW 9 00009 10 W R7 S412P PASSIVE SCHEMATIC DIAGRAM 10 W 20 Ohm 5 W 10 Ohm R5 2.7 Ohm

48、1.2 Ohm R2 20 Ohm 5 W Amplifier Blk Red 1.0 Ohm C9 100 V 5.1 uF R6 5 W 0.3 mH 2.6 mH C5 100 V 24 uF C1 100uF 100 V L3 10 W R4 L1 + .205 Yel .250 L.F. - 1.0 mH L4 10 W 6.2 Ohm 3.5 mH Grn/Blk Wht/Blk R3 L2 C7 0.22 mH 100 V 8 uF L5 100 V 30 Uf C3 + .205 .110 Yel/Blk Green Yel .205 .110 - + H.F. - M.F.

49、M.B.F. Wht Grn .250 .205 + -+ - High Frequency Transducer 335663-001 YEL/BLK YEL -+ + - 00006 Crossover Network 335678-001 Mid-Frequency Transducer 335439-001 WHT/BLK Mid-Bass Transducer 335148-001 Low Frequency Transducer 335151-001 WHT GREEN/BLK GREEN GREEN YEL - + Terminal Cup Amp Assembly 335679-001 Power Cord - + WIRING DIAGRAM Input 10 11 11 12 12 TIP 41C TIP 42C B C E B OUTPUT IC101 (