JBL-PSWD110-sub-sm 电路图 维修手册.pdf

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1、JBL Consumer Products Inc. 250 Crossways Park Drive Woodbury, N.Y. 11797 1-800-336-4JBL in the USA A Harman International Company Rev C 8/2000 PSW-D110/DPS-10 Powered Subwoofer SERVICE MANUAL RadioFans.CN 收音机爱 好者资料库 SAFETY INFORMATION Warning Any person performing service of this unit will be expose

2、d to hazardous voltages and the risk of electric shock.It is assumed that any person who removes the amplifier from this cabinet has been properly trained in protecting against avoidable injury and shock.Therefore, any service procedures are to be performed by qualifiedservice personal ONLY! Caution

3、 This unit does not have a power switch. Hazardous voltages are present within the unit whenever it is plugged in. Before the amplifier is plugged in, be sure its rated voltage corresponds to the voltage of the AC power source to be used.Incorrect voltage could cause damage to the amplifier when the

4、 AC power cord is plugged in. Do not exceed rated voltage by more than 10%: operation below 90% of rated voltage will cause poor performance or may shut the unit off. Leakage/Resistance Check Before returning the unit to the customer, perform a leakage or resistance test as follows: Leakage Current.

5、 Note there is no power switch on this unit. When the power plug is plugged in, the unit is live. Connect the unit to its rated power source. Using an ammeter, measure the current between the neutral side of the AC supply and chassis ground of the unit under test. if leakage current exceeds 0.5mA, t

6、he unit is defective. Reverse the polarity of the AC supply and repeat. Resistance. Measure the resistance from either side of the line cord to chassis ground. If it is less than 500k ohms, the unit is defective. WARNING! DO NOT return the unit to the customer if it fails one of these tests until th

7、e problem is located and corrected. Critical Components All components identified with the IEC symbol in the parts list and the schematic diagram designate components in which safety can be of special significance when replacing a component identified with. Use only the replacement parts designated

8、in the parts list or parts with the same rating of resistance, wattage or voltage. List of Safety Components Requiring Exact Replacements F1Fuse SLO BLO 1.25A 250V UL approved PWRCORDSPT-2 or better with polarized plug, UL approved wired with the hot side to fused side. Use with factory replacement

9、panel strain relief only. TRX1Transformer. Use only factory replacement. DBRBridge diode. Use only factory replacement. C1, 24700uF, 50V electrolytic filter caps. Be sure replacement part is at least the same working voltage and capacitance rating. Also the lead spacing is important. Incorrect spaci

10、ng may cause premature failure due to internal cabinet pressure and vibration. C610uF 50V electrolytic radial See Page 14 Service Bulletin S52AMIPower output module. Use only factory replacement FaceplateFaceplate. Use only factory replacement Air leak cover Use only factory replacement CMC1Use only

11、 factory replacement L1Use only factory replacement Fuse PCBUse only factory replacement Main PCBUse only factory replacement 2 Amplifier/SubwooferPSW-D110/DPS-10 RadioFans.CN 收音机爱 好者资料库 3 Amplifier/SubwooferPSW-D110/DPS-10 TABLE OF CONTENTS SAFETY INFORMATION.2 TABLE OF CONTENTS.3 GENERAL SPECIFICA

12、TIONS.3 DETAILED SPECIFICATIONS.4 PSW-D110/DPS-10 CONTROLS AND THEIR FUNCTION.6 OPERATION.7 SPEAKER CONNECTIONS.8 TROUBLESHOOTING .9 PSW-D110/DPS-10 TEST SET UP AND PROCEDURE.10 PSW-D110/DPS-10 POWER AMP TEST PROCEDURE and FLOW CHART.11 SERVICE BULLETIN JBL9902 REV1 - MAY 1999 .14 SERVICE BULLETIN J

13、BL9903 - APRIL 1999 .15 SERVICE BULLETIN JBL2000-01 - JANUARY 2000.16 CABINET EXPLODED VIEWS .17 AMPLIFIER EXPLODED VIEW .18 PSW-D110/DPS-10 MECHANICAL PARTS LIST.19 PACKING EXPLODED VIEWS.20 PSW-D110/DPS-10 Version 3.53 PCB (Component Side) .21 PSW-D110/DPS-10 Version 3.53 PCB (Solder Side) .22 PSW

14、-D110/DPS-10 Version 3.93 PCB (Component Side) .23 PSW-D110/DPS-10 Version 3.93 PCB (Solder Side) .24 PSW-D110/DPS-10 ELECTRICAL PARTS LIST .25 PSW-D110/DPS-10 INTEGRATED CIRCUITS .26 PWS-D110/DPS-10 SCHEMATIC 1 of 2.27 PWS-D110/DPS-10 SCHEMATIC 2 of 2.28 GENERAL SPECIFICATIONS Amplifier Power (RMS)

15、. . . . . . . . 150 watts Driver 10. . . . . . . . . . . . . High-Polymer Laminate Inputs . . . . . . . . . . . . . . . Line Level and Speaker Level Outputs. . . . . . . . . . . . . . Line Level and Speaker Level Low-Pass Frequency. . . . . . . . Continuously variable from 60Hz 180Hz High-Pass Frequ

16、ency . . . . . . . . Continuously variable from 60Hz 180Hz when using line-level inputs 180Hz when using speaker-level inputs Frequency Response. . . . . . . . 30Hz low-pass crossover setting PSW-D110DPS10 Dimensions (H x W x D) . . . . . . . 15-3/8 x 15-3/8 x 1718-1/16 x 14-7/8 x 15-7/8 (391 x 391

17、x 432mm)(459 x 378 x 403mm) Weight . . . . . . . . . . . . . . . 33 lbs/15 kg30 lbs/13.6 kg RadioFans.CN 收音机爱 好者资料库 DETAILED SPECIFICATIONS LINE VOLTAGEYes/NoHi/Lo LineUnitNotes US 120vac/60HzYes108-132VrmsNormal Operation EU 230vac/50-60HzYes207-264VrmsNormal operation, MOMS required ParameterSpeci

18、ficationUnitConditionsNotes Amp Section Type (Class AB, D, other)DClass D Preferred.Sink required for Class AB LoadImpedance (speaker) 4 OhmsNominalZ-curve required Rated Output Power150Watts1 input drivenPeak power 75Watts1 input drivenRMS THD Rated Power0.1%22k filter75w (Power Bandwidth 30-100Hz)

19、 THD 1 Watt0.1%22k filter DC Offset2mV-DC Speaker Outputs Damping factor200DF Input Sensitivity Input Frequency50HzNominal Freq.1 input driven Line Input110mVrmsTo Rated Power/ Vol Max1 input driven Speaker/Hi Level Input2.7VrmsTo Rated Power/ Vol Max1 input driven: AP source Z = 25 ohms Signal to N

20、oise SNR-A-Weighted100dBArelative to 75w powerA-Weighting filter SNR-unweighted75dBrrelative to 75w power22k filter SNR rel. 1W-unweighted65dBrrelative to 1W Output22k filter Residual Noise Floor2mVrmsVolume max, using RMS reading DMM/VOM (or A/P) Residual Noise Floor1.5mVrms(max)Volume max, w/ A/P

21、Swept Bandpass Measurement (Line freq.+ harmonics) Input Impedance Line Input10kohmsNominal Speaker/Hi Level Input200ohmsNominal Filters0dBr = 1w 50Hz LowPass(fixedor variable) Variable Low Pass filter (point or range) 60-120 Hz-3dB Point Slope18dB/Octave Q1Damping Subsonic filter (HPF)25Hz-3dB Poin

22、t Slope12dB/Octave Q1Damping 4 Amplifier/SubwooferPSW-D110/DPS-10 Limiter (yes/no)Yes THD at Max. Output Power 10 %Maximum Output PowerMaximum THD as a result of limiting. Features Phase Switch (yes/no)yes VolumepotTaper (lin/log) linear Input Configuration LineIn (L,C,R,AC3,Mono) L,R Enabled w/Line

23、/Spkr Input Select Switch Line Outputs (L,C,R)L,RBuffered Output / Pre-Volume control Line-Out Adj. X-over 130-240 Hz Var-HPF (Pot CCW and CW positions) Rear panel Variable xover Spkr/HiLevelIn (L,C,R,mono) L,R Enabled w/Line/Spkr Input Select Switch Spkr Out: Hi Pass Filter 100 Hz 8 ohm Satellite:

24、6dB/oct passive xover Driven from zero ohms source impedance Signal-Present LEDBi-Color LED (green=signal/ red=no signal) Signal-Present Input Freq. 100 HzNominal200uF Series Cap on PCB Signal-Present Level 2 mV 100Hz into Line Input w/ 1 ch. driven S i g n a l - P r e s e n t Bandwidth 1k Hz Signal

25、-Present-LPF for noise immunity Signal-Present Turn-on time 1 sec.Amp connected and AC on, then input signal applied Auto Mute/ Turn-OFF Time 15 min. T before muting, after signal is removed Power on Delay time3sec.AC Power Applied Transients/Pops Signal-Present Transient5mV-peak Speaker Outputs Tur

26、n-on Transient500mV-peak Speaker OutputsAC Line cycled from OFF to ON Turn-off Transient500mV-peak Speaker OutputsAC Line cycled from ON to OFF Efficiency Stand-by Input Power17Watts nom. line voltage AC Power Cons.1W18Watts nom. line voltage PowerCons.rated power 107 Watts nom. line voltage Efficie

27、ncy70.09%Relative to 75w output Protection Short Circuit ProtectionyesDirect short at output Line Fuse Rating1.25AmpsType-T or Slo Blo 5 Amplifier/SubwooferPSW-D110/DPS-10 1. Power - (PSW-D110 ONLY) This light will be RED when the unit is plugged in and not receiving a signal; when the PSW-D110 rece

28、ives a signal, the light will cycle to GREEN. If no signal is received after 10 15 minutes the light will cycle back to RED (standby) until a signal is present again. 2. Level Control - The subwoofer Level Control, (PSW-D110, located on the front panel, DPS-10, on the rear panel) adjusts the volume

29、of the subwoofer relative to the rest of the system. 3. High Pass Control - Controls the the roll-off point of the highest frequency the subwoofer will produce. 4. Phase Switch - Changes the subwoofers output to be in phase or 180 degrees out of phase with the program material. 5. Low Pass Control -

30、 Controls the roll-off point of the lowest frequency produced at the High Pass Output Jacks. 6. High Pass Output - When using the Line-Level Input jacks, these are connected to an external power amplifier or receiver to power the main loudspeakers with a high pass filter if desired. 7. Line Input -

31、Main Input connection to subwoofer (preferred). 8. Speaker In Jacks - Main Input connection to subwoofer when line level, subwoofer, or pre-amp output connectors are not availible, or when a high pass filter (set at 180Hz) to main loudspeakers is desired through the Speaker Output Jacks. 9. Speaker

32、Out Jacks - Connected to main loudspeakers when the Speaker Input Jacks are used. 6 Amplifier/SubwooferPSW-D110/DPS-10 RR LL SPKR IN SPKR OUT 60 90150 180 120 60 90150 180 120 RLLine High Pass Output Input 180o0o Phase High Pass Low Pass min max Front Panel (only)PSW-D110 Rear Panel 2 1 3 5 6 7 8 9

33、4 PSW-D110/DPS-10 CONTROLS AND THEIR FUNCTION OPERATION Crossover Adjustments High-Pass Control This control is only active if you are using the hook-up method described in detail on page 8, Figure 3. The High-Pass control determines the frequency at which the main speakers will start reproducing so

34、unds. If your main speakers can comfortably reproduce some low-frequency sounds, also set this control to a lower frequency setting, between 50Hz 100Hz. This will concentrate the subwoofers efforts to the ultradeep bass sounds, while your main speakers continue to reproduce the mid-bass information.

35、 If you are using smaller bookshelf speakers that do not extend to the lower bass frequencies, set the high-pass crossover control to a higher setting, between 125Hz 180Hz. With this setting, your main speakers will not have the burden of reproducing any low-frequency sounds. Final adjustment and bl

36、ending of the low-pass and high-pass controls may evolve over several listening sessions. A good starting point would be to set both the low- and high-pass controls to the same frequency and adjust from that point. Low-Pass Control The Low-Pass control determines the highest frequency at which the s

37、ubwoofer reproduces sounds. If your main speakers can comfortably reproduce some low-frequency sounds, set this control to a lower frequency setting, between 50Hz 100Hz. This will concentrate the subwoofers efforts on the ultradeep bass sounds required by todays films and music. If you are using sma

38、ller bookshelf speakers that do not extend to the lower bass frequencies, set the low-pass crossover control to a higher setting, between 120Hz 180Hz. Phase Phase Control The Phase Control determines whether the subwoofer speakers piston-like action moves in and out with the main speakers, 0?, or op

39、posite the main speakers, 180?. There is no correct or incorrect setting. Proper phase adjustment depends on several variables such as room size, subwoofer placement and listener position. Adjust the phase switch to maximize bass output at the listening position. Remember, every system, room and lis

40、tener is different. There are no right or wrong settings; any setting you choose will result in excellent performance. Should you decide to fine-tune your system for optimum performance, be patient and trust your ears. It will be worth the effort involved to fully “tweak” your system. 7 Amplifier/Su

41、bwooferPSW-D110/DPS-10 SPEAKER CONNECTIONS 1) If your receiver/amplifier has no subwoofer outputs or preamp outputs for the left and right channels. See Figure 1. 2) If your receiver/amplifier has subwoofer outputs or preamp output jacks for the left and right channels. See Figure 2. Note: Some rece

42、ivers/amplifiers have a single (mono) subwoofer output. In this case, it is recommended that you use a “Y”-connector (not included) to maximize the subwoofers performance. 3) If your receiver/amplifier has preamp output jacks and main input jacks for the left and right channels or you have a separat

43、e pre-amp/ processor and power amplifier. See Figure 3. This method of hookup can offer the highest level of performance for your complete loudspeaker system. The PSW-D110/DPS-10 incorporates a variable high-pass crossover in addition to a variable low-pass crossover. When hooked up as shown above,

44、the subwoofer will limit the low-frequency information that is returned to your receiver/amplifier. Your receiver/amplifier does not need to waste valuable power reproducing the low frequencies. In addition, since no low-frequency information is being sent to your main loudspeakers, they are able to

45、 reproduce mid and high frequencies with greater clarity 8 Amplifier/SubwooferPSW-D110/DPS-10 RR LL SPKR IN SPKR OUT 60 90150 180 120 60 90150 180 120 RL Power Line High Pass Output Input 180o0o Phase High Pass Low Pass LEFT SPEAKER RIGHT SPEAKER SPEAKER OUTPUT LEFTRIGHT RECEIVER/AMPLIFIER Figure 1

46、Figure 2 RR LL SPKR IN SPKR OUT 60 90150 180 120 60 90150 180 120 RL Power Line High Pass Output Input 180o0o Phase High Pass Low Pass RIGHT LOUDSPEAKER LEFT LOUDSPEAKER MAIN SPEAKER OUTPUT SUBWOOFER OUT LEFT LEFT RIGHT RIGHT RECEIVER/AMPLIFIER Figure 3 RR LL SPKR IN SPKR OUT 60 90150 180 120 60 90150 180 120 RL Power Line High Pass Output Input 180o0o Phase High Pass Low Pass RIGHT LOUDSPEAKER LEFT LOUDSPEAKER MAIN SPEAKER OUTPUT LEFTRIGHT RIGHT LEFT RECEIVER/AMPLIFIER PRE OUT MAIN IN NOTE: The rear plate for the PSW-D110 is shown, which has the level control on the front pan