Laney_B1,_B2,_B3_Service_Manual电路图.pdf

? ? ? ? ? ? Laneywww.laney.co.uk RadioFans.CN 收音机爱 好者资料库 RadioFans.CN 收音机爱 好者资料库 RadioFans.CN 收音机爱 好者资料库 Drawing number 3189 Issue1 Drawn byRJF Date05/12/00 Updated Drawing number 3189 Issue1 Drawn byRJF Date05/12/00 Updated B2/B3 Combo Wiring Details B2/B3 Combo Wiring Details Power Consumption 750Watts 50-60Hz Power Consumption 750Watts 50-60Hz Made in the United Kingdom by BLT Industries Ltd.Made in the United Kingdom by BLT Industries Ltd. Attention. Debrancher le cordon dalimentation avant toute intervention. Attention. Debrancher le cordon dalimentation avant toute intervention. Serial No:-Serial No:- Avis Risque de choc electrique - ne pas ouvrir. Avis Risque de choc electrique - ne pas ouvrir. ? ? CAUTIONCAUTION RISK OF ELECTRIC SHOCK - DO NOT OPENRISK OF ELECTRIC SHOCK - DO NOT OPEN Warning To reduce the risk of fire or electric shock do not expose this appliance to rain or moisture. Warning To reduce the risk of fire or electric shock do not expose this appliance to rain or moisture. Caution To reduce the risk of electric shock do not remove covers. No user serviceable parts inside. Refer servicing to qualified personnel only. Caution To reduce the risk of electric shock do not remove covers. No user serviceable parts inside. Refer servicing to qualified personnel only. Warning This equipment must be earthed.Warning This equipment must be earthed. Aux In Aux In Effects Loop Effects Loop Send 0dB -10dB Bypass Send 0dB -10dB Bypass ReturnReturn Direct Inject Direct Inject Pre EqPre Eq Post EqPost Eq Amp ModeAmp Mode Internal+Sub Bi-amp Internal+Sub Bi-amp Internal OnlyInternal Only Pre-Amp Out Pre-Amp Out FootswitchFootswitch Lo Hi Level Lo Hi Level Active CrossoverActive Crossover 2 44 2 11 5 2 44 2 11 5 3333 5 5 ? ? 0? ? 0 Bi-Amp/Hi Bi-Amp/Lo Bi-Amp/Hi Bi-Amp/Lo Min Load 2 Ohms Min Load 2 Ohms Min Load 2 Ohms Min Load 2 Ohms Sub/LoSub/Lo Internal/HiInternal/Hi 115V 230V 115V 230V Supply VoltageSupply Voltage Push To ResetPush To Reset L o c k L o c k U n l o c k U n l o c k L o c k L o c k U n l o c k U n l o c k Caution Refer to users manual for recommended speaker connections. Caution Refer to users manual for recommended speaker connections. 2+ 2- 1- 1+ + 2+ 2- 1- 1+ + + + + - - + - - 2+ 2- 1- 1+ + PAD On Speakon - BLT Part Nos 10682Speakon - BLT Part Nos 10682 To Internal / Hi SocketTo Internal / Hi Socket To Sub / Lo SocketTo Sub / Lo Socket 15 inch Loudspeaker Part Nos . 41522 (B3 only) 15 inch Loudspeaker Part Nos . 41522 (B3 only) 2 off 10 inch Loudspeakers Part Nos . 41026 (B2 + B3) 2 off 10 inch Loudspeakers Part Nos . 41026 (B2 + B3) Fostex HornFostex Horn Cable QCable Q Cable UCable U View from Rear of Speaker Plate (unprinted face) Shows switch orientation B2 and B3 Cabinet Wiring Details B Series Bass Amplifiers D:RSTMISCB Series Ampifiers THD measurement.doc Created by R&D3 On 08/12/00Page 1/1 Traditionally, Class A and Class A-B amplifiers have dominated the amplifier marketplace. These purely analogue devices have low power efficiency and most integrated circuit Class A-B amplifiers fall short of true high-fidelity audio quality. Class D amplifiers however, solve the efficiency problem by using switching pulse-width modulation technology. However, this produces audio quality that is far inferior to class A or AB, so efficiency is gained at the expense of audio fidelity. The Holy Grail of amplification: High audio quality AND high power efficiency has long eluded the market. Enter the B range of Bass Amplifiers delivering audiophile performance and very high efficiency. If you have measured the output waveforms of B Series Bass Amplifiers using traditional equipment and methods, you may have observed an unusual characteristic in the output waveform when the amplifier is driven close its maximum output. This characteristic appears to be a high frequency oscillation near the waveform peaks. In reality, this apparent oscillation is an audio quality enhancement characteristic of the B series amplifier. The apparent oscillations are well outside the audio bandwidth, and are a unique feature of the digital power processor. No Filtering on output As the input signal, to any conventional amplifier is increased, at some point the output of the amplifier will distort/clip i.e. Square off. This is bad news because the for a split second the loudspeaker is not moving at all but still dissipating potentially huge power levels, this is the main cause of (expensive) compression driver failure. When the B Series Bass Amplifier goes into this distortion region, it exhibits high frequency break-up of the peaks as shown above. This is actually the amplifier resetting the control processor overloads at a frequency far above the audible range. This is not instability or oscillation, nor does it degrade the performance of the amplifier in any way. In addition the B Series Bass Amplifiers also have the ability to run almost rail-to-rail, and thus will not lose negative feedback. In other words, it will retain control of the loudspeaker at all times. Measurement of THD%+N Unless your distortion analyser is designed to reject out of band noise when measuring THD (And very few are), the THD measurement actually reflects harmonic distortion plus any noise present up to the bandwidth of the analyser and so is actually a measurement of THD+N. Since the B Series range of amplifiers have energy far outside the audible frequency range (As do inferior class D amplifiers), a test designed for linear amplifiers (such as class A, AB) will not yield valid results when applied to a B Series amplifier. A sharp cut-off low-pass filter must be inserted between the amplifiers outputs and the test equipments inputs prior to making any distortion measurements. Some measurement equipment (Such as Audio Precision2) have high quality low pass filters which can be used to limit the test bandwidth. Using these filters (as shown below) you will achieve what looks like a high quality linear amplifier. Even though there appears to be lots going on outside the audio bandwidth, the B amplifier is designed to be well within current and future EMC guidelines, and as such is quieter than most linear amplifiers. Output with 30Khz Low-pass filter Page 1/5 10702SPECIAL MAINS LEAD1 10958B1 USER MANUAL1 20480B1 CABINET ASSY-1 7904 B1 CHASSIS ASSY 1 7904B1 CHASSIS ASSY EURO/UK-1 -00104810M .25W RESISTOR1 -00140122K 1W RESISTOR2 -00202210000UF 100V CAPACITOR/SAMWHA2 -002204680NF 250V 22.9mm3 -0030433MM BLUE DIFFUSED LED6 -005632M3*20 PLASTIC SPACER HEX2 -005320CHASSIS MOUNT MAINS FILTER1 -0053193A FILTERED MAINS INLET1 -0053213A THERMAL RELEASE SWITCH1 -0055037.5mm ROUND BLACK4 -0055103MM SOLDER TAG1 -0055115MM SOLDER TAG11 -0055126mm SOLDER TAG2 -005536LARGE GRIPPACLIP2 -005548ECC83 VALVE1 -005558100mm TIE WRAP20 -00557410 WAY (T) CONNECTOR3 -005625NOB P670-90F SPLINE1 -005659SHORT BOARD SPACER 12.7MM14 -005660DB SERIES LARGE KNOB/30MM1 -005664RBG CHROME KNOB 18mm8 -005664/CP18MM KNURLED KNOB8 -0091503mm HEX NUT4 -0091513mm INT SHAKEPROOF4 -0091543*12mm Z/B PAN POZI4 -0091604mm HEX NUT13 -0091614mm INT. SHAKEPROOF19 -0091634*20mm PAN POZI5 -0091664*25 CSK BLACK POZI2 -0091674*8 PAN POZI TAPTE12 -0091735*12mm PAN POZI1 -0091815mm BRASS HEX NUT1 -0091895mm CAGE NUT4 -0091906 WAY END CONNECTOR4 -0091993 WAY IDC CONNECTOR2 -009200NO 6*3/8 FLANGE POZI6 -009204NO 4*1/4 PLASTITE22 -0092174mm NUTSERT8 -52203235A BRIDGE RECTIFIER1 -530027DPST EQ MAINS SWITCH2 -530066SPEAKON SOCKET3 -540038EARTH WARNING LABEL1 -541004HC25/50 4.8 FASTON18 -5410531/4 LG RECEPTACLE17 -541071POZI LOCK NYLON BOOT12 -5820074*10mm SMALL F/H18 -586003M8 * 60 COACH BOLT1 -5860238mm SHKPRF WASHER1 -588006POP RIVET (BLACK)6 -58904150mm CAPACITOR CLAMP2 -5P-50036MX500 CAP STRAP-1 -8P-9244B1 FACIA DWG NO 3057-1 -8P-9245B1 REAR DWG NO 3135-1 -8P-9246B1 CHASSIS DWG NO 3107-1 -8P-9248B1 HEATSINK EXTR DWG NO 3148-2 -8T-6142AB1 MAINS TX + CRIMPS-1 -8T-6142B1 MAINS 115/230 TX-1 -007905B1 PREAMP ASSY PCB 9331-1 -00104627KSM 1206 1% RESISTOR1 -001207100K .5W 1% RESISTOR2 -001300ORO SHORTING LINK47 -001303100R 5% RESISTOR1 -0013052K2 5% RESISTOR20 -00130610K 5% RESISTOR38 -00130868K 5% RESISTOR2 -0013091M 5% RESISTOR2 -001310100K 5% RESISTOR17 -001311470R 5% RESISTOR10 -0013124K7 5% RESISTOR4 -0013148K2 5% RESISTOR2 -00131547K 5% RESISTOR2 Page 2/5 -00131622K 5% RESISTOR11 -0013263K3 5% RESISTOR4 -0013271K 5% RESISTOR7 -001329330R 5% RESISTOR4 -001330220K 5% RESISTOR5 -001332330K 5% RESISTOR2 -001334150K 5% RESISTOR1 -001336470K 5% RESISTOR2 -00171410K 5W RESISTOR2 -001920ZERO OHM RESISTOR26 -00200447UF 50V RADIAL3 -00201310UF 50V CAPACITOR11 -00201510uf 400V RADIAL3 -0020242.2UF 63V RADIAL2 -0020251UF 63V RADIAL2 -0020274.7UF 63V RADIAL1 -002037220N 5MM BOX POLY CAPACITOR 63V6 -002038330N 5MM BOX POLY CAPACITOR 63V1 -002410100NF 400V 15MM2 -0024174.7NF 100V 5mm1 -002419100NF 63V 5mm24 -00242022NF 100V 5mm2 -00242547NF 100V 5mm9 -00242615NF 100V 5mm1 -00242833N 100V 5MM1 -00260247PF 50V 10% COG11 -002603100PF 50V 10% COG2 -002605470PF 50V 10% COG1 -0028044N7 1000V CERAMIC4 -0030001N4007 DIODE4 -0030073V9 .5W ZENER DIODE2 -0030115V1 .5W ZENER DIODE1 -00301810V .5W ZENER DIODE4 -0030223mm GREEN LED1 -0030333mm LED RED2 -0030415MM FERRITE BEAD3 -0030433MM BLUE DIFFUSED LED13 -003500BAS16 DIODE13 -003503BC847B TRANSISTOR5 -003506TMPF3820 TRANSISTOR8 -00350834072 IC (SMD TL072)15 -003805LB1413 BARGRAPH DRIVER2 -0039017815 IC VOLTREGULATOR1 -0039027915 IC VOLTREGULATOR1 -003910CD4069UBE IC1 -0039320-9/9V PCB MOUNT TRANSFORMER1 -0040001K HORIZ PRESET1 -004016470K HORIZ PRESET1 -00401910K HORIZ PRESET2 -004103A100K 27.5mm POT2 -004104A10K 27.5mm POT2 -004109B10K DUAL 27.5MM POT1 -004110B10K 27.5MM POT4 -004112B10K ILLUMINATED SLIDER6 -005030HEATSINK TV52 -00503590o 10 WAY HEADER1 -0050626W 90o LOCKING HEADER1 -0050723 WAY 90 DEGREE LOCKING HEADER1 -0051030.9A POLY SWITCH/MF-R0901 -0053048.5mm VERTICAL PUSH SWITCH4 -0053096.3MM PHONE JACK3 -005579B9A VALVE BASE1 -005657LED SPACER 12.7mm16 -0056864.8MM TERMINAL SPADE4 -009331B1 PREAMP ISSUE 61 -521010SSM2018P VOLTCONTROL AMP1 -541004HC25/50 4.8 FASTON2 -588006POP RIVET (BLACK)2 -007907B1 EFFECTS LOOP ASSY PCB 9332-1 -001300ORO SHORTING LINK12 -00130110R 5% RESISTOR4 -00130247R 5% RESISTOR2 -001303100R 5% RESISTOR2 -00130610K 5% RESISTOR20 -001310100K 5% RESISTOR3 -00131622K 5% RESISTOR1 -0013263K3 5% RESISTOR1 Page 3/5 -0013271K 5% RESISTOR2 -001329330R 5% RESISTOR2 -00133133K 5% RESISTOR4 -001334150K 5% RESISTOR4 -00200447UF 50V RADIAL6 -00201310UF 50V CAPACITOR7 -00240122NF 400V 10MM2 -002402220NF 250V 15MM DIPPED POLYSTER2 -002419100NF 63V 5mm6 -00242110NF 100V 5mm4 -002603100PF 50V 10% COG3 -002605470PF 50V 10% COG2 -003031SURGE GUARD SCK20-10-8A1 -0030415MM FERRITE BEAD12 -003500BAS16 DIODE2 -00350834072 IC (SMD TL072)5 -0040824mm 10K LIN POT1 -0050165 WAY DIN SOCKET1 -005032SLIM JACK SOCKET-S1BNB6 -00503590o 10 WAY HEADER2 -0050366 WAY LOCKING HEADER2 -00504716A 24V RELAY1 -0056102 POLE 2 WAY (MX)1 -005624XLR SKT MALE 90DEG1 -0056864.8MM TERMINAL SPADE4 -009332B1 FX LOOP PCB ARRAY1 -5300234P 3W SLIDE SWITCH2 -57101410 TURN CHOKE2 -007906B1/CA OUTPUT ASSY PCB 9333-1 -0010685R6 1W 5% WW RESISTOR4 -001069OR01 2W5 5% WIREWOUND RESISTOR4 -00107018KSM 1206 1% RESISTOR2 -00107333R 2W5 5% RESISTOR2 -001300ORO SHORTING LINK2 -00130247R 5% RESISTOR1 -0013052K2 5% RESISTOR1 -00130610K 5% RESISTOR11 -0013091M 5% RESISTOR4 -0013124K7 5% RESISTOR4 -00131547K 5% RESISTOR3 -0013186K8 5% RESISTOR1 -0013271K 5% RESISTOR2 -00140010K 1W RESISTOR1 -0015111K 2.5W RESISTOR2 -001705680R 5W RESISTOR1 -001920ZERO OHM RESISTOR1 -00200447UF 50V RADIAL4 -0020091000UF 25V RADIAL3 -00201310UF 50V CAPACITOR1 -002014100UF 35V RADIAL1 -0020251UF 63V RADIAL3 -002029220UF 25V CAPACITOR1 -002035100N 100V 5MM BOX POLY6 -002036100UF 100V RADIAL CAP2 -002039220N 250V POLYPROPYLENE CAP2 -002041100N 250V 5MM POLYESTER CAPACITOR2 -002410100NF 400V 15MM2 -002419100NF 63V 5mm8 -00281847PF 500V CERAMIC2 -0030001N4007 DIODE6 -0030073V9 .5W ZENER DIODE2 -00301415V 1.3W ZENER1 -0030171.5A 200V BRIDGE1 -00301810V .5W ZENER DIODE1 -0030223mm GREEN LED2 -0030415MM FERRITE BEAD5 -003042BYW100-200-FAST RECOVERY DIODE4 -003411MPSA42/43 TRANSISTOR2 -003422STW38NB20 N CHANNEL MOSFET T02474 -003423TA0104A TRIPATH DIGITAL AMPLIFIER2 -003424LM7812 12V REGULATOR1 -003500BAS16 DIODE7 -003503BC847B TRANSISTOR3 -003504BC857B TRANSISTOR1 -00350834072 IC (SMD TL072)1 -003610TIP31C TRANSISTOR2 -0039017815 IC VOLTREGULATOR1 Page 4/5 -0039027915 IC VOLTREGULATOR1 -0039057805 IC1 -00401910K HORIZ PRESET2 -005030HEATSINK TV53 -0050366 WAY LOCKING HEADER1 -0050381/4 SPADE TERMINAL7 -0050633 WAY LOCKING HEADER3 -005076290MM TIE WRAP1 -0051030.9A POLY SWITCH/MF-R0903 -0053168W PCB SOCKET2 -00531711.3UH 20A INDUCTOR2 -00531812W PCB SOCKET2 -005322ALUMINIUM OXIDE FET WASHER4 -005558100mm TIE WRAP2 -00560930A RELAY2 -0056864.8MM TERMINAL SPADE6 -0091503mm HEX NUT7 -0091513mm INT SHAKEPROOF7 -009333CA/B1 DIGITAL OUTPUT PCB1 -543508SHORTING LINK (IDC)2 -5810183*20mm PAN POZI7 -588006POP RIVET (BLACK)3 -588058M3*10mm HEX TAPPED5 -8P-9243CA/B1 OUTPUT TRAY DWG NO 3130-1 -8P-5071CA1500/600/B1 FET CLAMPING BAR2 B2 CABINET 005560 SPST MINI ROCKER 2.000 008645 DB XVER PCB 1.000 10039 CORNER C1839K 6.000 10044 C1823K CORNER 2.000 10057 SMALL LANEY BADGE 1.000 10059 RUBBER CABINET FOOT 8.000 10116 CASTOR 2.000 10117 RUBBER CUP 4.000 10118 BOTTOM HANDLE 1.000 10120 SIDE HANDLE RECESS 2.000 10200 M5 x 10mm TEENUT 8.000 10204 5mm X 25mm PAN POZI 20.000 10224 35mm FINISHED NAILS 40.000 10231 No8x1/2 FLANGE POZI 26.000 10232 NO10 x1 1/2 FLANGE HD 6.000 10233 M5*30 FLANGE POZI BK 4.000 10240 10 * 1 CSK POZI 4.000 10241 NO8x1 1/4FLANGE 4.000 10243 NO4*1/2 TYPE B CSK 2.000 10244 FLAT SPIRE CLIP 2.000 10247 NO8*1/2 FLANGE POZI 4.000 10256 8*1 FLANGE POZI 4.000 10312 15mm PLYWOOD 0.450 10314 18mm MDF 0.100 10326 BLACK CARPET 2.000 10502 DB FOSTEX HORN 1.000 10600 32/18 STAPLES 12.000 10622 POLY BAG 48(0) X 48 1.000 10680 GROMET 1.000 10681 SPEAKER CABLE 0.480 10682 NL2 SPEAKON 1.000 10804 CARTON B210/TE700 1.000 41026 10 LOUDSPEAKER 2.000 541004 HC25/50 4.8 FASTON 4.000 541051 1/4 SML RECEPTACLE 18.000 582007 4*10mm SMALL F/H 6.000 80050 B2 CHASSIS(USE B1) 1.000 8G-B2 GRILL 1.000 8P-5034 B2/B3 SIDE WING 2.000 8P-5083 SPEAKER PLATE 1.000 8P-8502 CABINET VENT PLATE 1