BO-Beolab3500_MKII_type160x-sm-da维修电路原理图.pdf

BeoLab 3500 MKIIType1601,1602,1603,1604,1605,1607,1608fromserialno.19343452ServiceManualEnglishGerman and French, versions are available in the Retail SystemABO-CENTER v/HENRIKSENS ELEKTRONIKRadioFans.CN 收音机爱 好者资料库CONTENTSSurvey of modules . 1.1Adjustments . 2.1Repair tips . 3.1Disassembly . 4.1Insulation test . 5.1Specification guidelines for service use . 6.1Wiring diagram . 7.1Block diagrams . 7.3 7.5Available parts . 8.1ABO-CENTER v/HENRIKSENS ELEKTRONIKRadioFans.CN 收音机爱 好者资料库Survey of modules 1.1 2 Switch Mode Power Supply19 DC/DC Converter20 Transformer left21 Transformer right22 Power Amplifier left22 Power Amplifier right25 NTC31 LF Supply and Control32 Cross Field34 Plug PCB35 Display, Keyboard and IR Receiver36 MicrocomputerSeen from the front3634202222532352119312225Seen from the backABO-CENTER v/HENRIKSENS ELEKTRONIK1.ABO-CENTER v/HENRIKSENS ELEKTRONIKAdjustments 2.ADJUSTMENTS5VWhen replacing IC, LM3578, on PCB2, Switch-Mode Power Supply, the supply voltage may have to be adjusted to 5V 0.25V by means of R2 and R0:- If 5V is above level, install R2 (R/R2).- If 5V is below level, install R0 (R3/R0).SPEAKERAdjustment of bass/treble sound level.To be carried out only when replacing a speaker unit or PCB36, Microcomputer.TEST MODE 0This test mode permits manual adjustment of speaker bass and treble levels and can only be executed from stand-by with a Beo4.- Press MENU 0 1 GO.The display reads SPK.CAL. to indicate that the product is ready for speaker calibration.- Press GO.The display shows the present adjustment: X X X X = left bass (LB). X X X X = left treble (LT). X X X X = right treble (RT). X X X X = right bass (RB).The value that can be changed is flashing. Press or to select speaker, if necessary (the active speaker is flashing), and enter a new digit (see table).Negative:If the rated value printed on the back of the speaker is negative, the other three units must be damped by X number of steps. Press to select the three speakers in question, and enter new digits (see table). Rated value in dB X steps down 0.00 +/-0.25 0 steps down +/-0.50 +/-0.75 +/-.00 +/-.25 step down +/-.50 +/-.75 +/-2.00 2 steps down- Press STORE when all four speakers have the desired encoding.- Abandon test mode by pressing STOP.ABO-CENTER v/HENRIKSENS ELEKTRONIKRepair tips 3.REPAIR TIPSBeoLab 3500 can be brought into TEST MODE from stand-by with a Beo4, giving access to the following functions:TEST MODE 00Display of: Software version number and time of operation in Audio mode, Video mode and stand-by.- Press MENU 0 0 GO.The display reads: SW X.Y, which is the software version number.- Press m The display reads: A: XXXXX, which is the Audio mode operating time in hours x 0.- Press m The display reads: B: XXXXX, which is the Video mode operating time in hours x 0.- Press m The display reads: C: XXXXX, which is the stand-by operating time in hours x 0. Press m or p to scroll in the scroll menu, and abandon test mode by pressing STOP.TEST MODE 01Electronic adjustment of the bass and treble levels of the speakers. See section 2, Adjustments.SERVICE SET-UPBeoLab 3500 is connected to a Beomaster as an ordinary Master link installation. As regards option programming, see Users Guide.TEST MODE 02Display of Master Link error types. Gives an identification of the error types that may occur in the Beolink installation.- Press MENU 0 2 GO The display reads: ML OK = The Master Link connection is OK. Or NO ML = Master Link is not connected. Or ERROR = Address configuration impossible. Or ERROR 2 = Master Link data pulled low. Or ERROR 3 = Master Link data pulled high. Or ERROR 4 = Data collision on Master Link.- Press STOP to abandon display of Master Link error types and to delete registered errors.The Master Link error system is a part of the software in the product. It registers communication errors between the microcomputer, the data transceiver circuits (PCB35) and the products connected to BeoLink. The error types will be described below, and tips will be given regarding how the cause of the error can be found:ABO-CENTER v/HENRIKSENS ELEKTRONIK3.2 Repair tipsERROR :Error during address configuration. No address has been allocated because too many units are connected to the BeoLink.- Remove all products from BeoLink, and connect them again one at a time until the error code occurs. Disconnect that product from BeoLink.ERROR 2:It is not possible to transmit on BeoLink, because it has been pulled low. The error may occur if there is no Master Link driver circuit, or as a result of a physical short-circuit on BeoLink or in the data transceiver circuits.- Disconnect one product from BeoLink at a time, and see if it starts up.- Reset the faulty product, and check the connection (cable/plug) and signal path (the data transceiver circuits).ERROR 3:It is not possible to transmit on BeoLink, because it has been pulled high. This error is caused either by the pull-up resistance in the system having become too small or by an error in the data transceiver circuit.- Disconnect one product from BeoLink at a time, and see if it starts up.- Reset the faulty product, check whether the Master Link cable is too long, and check the signal path (the data transceiver circuit).ERROR 4:The data traffic on BeoLink has been excessive, or a product has jammed and will not receive telegrams.- Press the operating sequence again.- Disconnect one product from BeoLink at a time to determine which product has jammed. Reset the faulty product, and check the Master Link connection (cable/plug) and signal path (amplifiers in the data transceiver circuit).TEST MODE 0 3Direct selection of Master Link input. Permits the Master Link signal path to be tested without having a BeoLink master connected.- Press MENU 0 3 GO The display reads: ML SEL. = Opens the Master Link signal path.- Press STOP to close the Master Link signal path.ABO-CENTER v/HENRIKSENS ELEKTRONIKDisassembly 4.DISASSEMBLYFront fabric frame- Push the front fabric frame to the side and lift it off.When both front fabric frames have been removed, PCB35, Display, Keyboard & IR receiver, PCB36, Microcomputer, and PCB32, Cross field, are accessible:- Remove the display glass (two screws) and the two plastic covers (four screws). PCB35 can now be tilted out into service position, thereby also providing access to PCB36 and PCB32.353236ABO-CENTER v/HENRIKSENS ELEKTRONIK4.2 DisassemblyService positionImportant!The display glass and cabinet must be protected against scratches by placing them on a soft base.- Remove the sixteen screws, A, behind the front fabric frames.- Place the front face down.- Remove the socket well by first removing the two Allen screws.- Lift the cabinet up and off carefully. Place the cabinet parallel to the electronics block, and remove the two woofer plugs (22P4) if necessary.- When assembling the product, lower the electronics block carefully down into the cabinet. Place the woofer leads at the centre of the cabinet so that they will not rattle against the cabinet sides.AAAAAAAAAAAAAAAAABO-CENTER v/HENRIKSENS ELEKTRONIKInsulation test 5.INSULATION TESTEach set must be insulation tested after dismantling. The test is to be performed when the set has been re-assembled and is ready for delivery to the customer.Make the insulation test as follows: Short-circuit the two plug pins of the mains plug and connect one of the terminals of the insulation tester. Connect the other terminal of the insulation tester to the chassis of the 8-pin DIN socket.N.B.!To avoid ruining the set, it is esential that both insulator test terminals are in really good mechanical contact.Now turn slowly the voltage control of the insulation tester until a voltage of .3kV is obtained. Hold it there for second, then turn slowly the voltage down again.At no point during the testing procedure any flash-overs are permissible.ABO-CENTER v/HENRIKSENS ELEKTRONIK5.ABO-CENTER v/HENRIKSENS ELEKTRONIKSpecification guidelines for service use 6.SPECIFICATION GUIDELINES FOR SERVICE USEBeoLab 3500 MKII Type 60 (EU), 602 (GB), 603 (USA-CDN), 604 (JAP), 605 (AUS) 607 (KOR), 608 (CHK)ConceptX-tra room product Active stereo loudspeaker with control circuitry, stand-by relay and IR receiverOperationLocal operation Two sensi-touch fields with restriced operation (Mute/on/off/listen-in, timer on/off)Remote operation Beolink 000 or Beo4, one-way (optional extra)Status feedback Red 8 char. LED dot matrix display, (program source, program or track number, record, clock) Red LED .8mm (Timer indication)Independent sound control Volume, balance, bass, treble, loudnessCompatability Master Link Wireless via 8-pin DIN plugCabinetRear finish Polished aluminium, high glossFront cloth BlackCenter front Black aluminium/plasticWall bracket Grey plasticPlacementWall Wall bracket includedStand Polished aluminium (optional extra)AcousticsCabinet net volume per channel 0.8 litresWoofer in each channel 9 cm - 3”Tweeter in each channel .8 cm - 3/4”Crossover frequency 3000 HzBass reflex principle PortElectronicsOverload protection YesVolumecontrol +2 dB in relation to central roomBass/treble equalization 2 dB, 00Hz/20kHzSystem dataPrinciple Active, Bass reflex, 2-way, bi-amp,stereoFrequency response 70 - 22.000 Hz +4 -8 dB, half fieldSound Pressure Level 95 dB weighted noise (IEC 268-5),stereo, half room, 3mHarmonic distortion 250 -,000Hz 0% 94 dB SPL, mHarmonic distortion ,000 - 5,000Hz 80 dBA, W/8WSignal-to-noise ratio 74 dBA, full volumeFrequency range 20 - 20,000 Hz +0 - dBHarmonic distortion 0.%Total harmonic distortion 15VPL DATATR3,4,5P3-1PL DP5-2SDASCLP5-3P3-13MLD+MLD-P3-14SDA, SCL3/4IC1P25-8P24-13P25-6P24-11P16-6P16-8P17-10P17-8SOUND CONTROLIC1P17-3P17-2MLD-MLD+PL DATAVMLPLIMP2-6PFAILP2-8PLIMP2-6PFAILP2-8R78,TR8-10 ANDIC2, TR7R78,TR8-10 ANDIC2, TR7PL5372146P7-4VML8V5 =15VP7-14P7-2P7-1116MASTER LINK1A1A1A1A1ASCLSDA10P116P2-18STR.23132P25-7P24-12P16-7P17-9P5-9P2-1D5PMUTE12PMUTEP2-7PMUTEP2-7P4P1ABO-CENTER v/HENRIKSENS ELEKTRONIK7. Block diagramBlock diagram 7.7.22POWER AMPLIFIER-+P1-1,2,3,4-35VP1-9,10,11,12P1-5,6,7,8POWER SUPPLY35VD200C2C13211/2IC10045581/2IC1004558567TREBLE FILTER, 4. ORDER HPP2-5TREBLE IND12D4C14R32TO IC1 PIN 6PA MUTEP2-4BASS INFROMPCB 5P9-20PMUTEP2-73211/2IC1014558BASS EXTENSION2. ORDER HP3211/2IC10345581/2IC1034558657BASS EXTENSION 4. ORDER LP5671/2IC1014558R109LDRBAND PASS FILTERWITH ADJUSTMENT3211/2IC10245581/2IC1024558R1132. ORDER HPDIFFERENTIAL FILTER9V567R114R129561/2IC104455873211/2IC1044558R128R127R130R109LEDAMPLITUDE DETECTORBASS FILTER WITH ABLR58R661213141/4IC21/4IC21/4IC21/4IC21098C26R67567321TR7D8D9POWER LIMITER BASS (LONG AND SHORT TERM)PLIMP2-6TO PCB3 ?P25NTCR789VTR5TR6TREBLE PROTECTTR3MUTETRANSISTOR1210TREBLER261/2IC1STK4171VR27POWER AMPLIFIER TREBLER69PFAILP2-8TO PCB3 ?PR719VP8-1P8-2TR10TR9TR8MUTETRANSISTORTR41/2IC1STK4171VR70181713R52R49POWER AMPLIFIER BASSBASS9VTR1TR235V9VR4R2R5SIGNAL MUTEP21P41-9V+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-Block diagram for Power amplifierABO-CENTER v/HENRIKSENS ELEKTRONIK8. Available partsAvailable parts 8.8.900190029003900890099010901190129013901490159016901790049005900690079019902090219022902344123321555566678978977666555510106661010106666151414101014655161718212155205551919205666613131313131321215192019555205551617186666101014141111101514139018212135202225236323422222221193125Available partsBeoLab 3500ABO-CENTER v/HENRIKSENS ELEKTRONIKAvailable parts 8.Available parts900 2576302 Distance bolt9002 34422 Chassis9003 8480340 Tweeter9004 3907064 Rubber9005 3950053 Rubber belt9006 345207 Front piece9007 36906 Operating panel9008 3459454 Cap, dark grey 345908 Cap, black 345906 Cap, grey9009 3430055 Cabinet, dark grey 3430056 Cabinet, black 343064 Cabinet, grey900 28624 Clips90 8480259 Woofer902 3332055 Damper903 370300 Insulating piece904 35224 Wire holder905 6276907 Mains socket906 364935 Cover907 34406 Chassis f. sockets908 800608 Rectifier PCB909 34422 Chassis9020 345207 Front piece902 345470 Cloth front, dark grey 345472 Cloth front, silver 345244 Cloth front, black9022 303382 Wall fittings9023 364920 Cover f. wall fittings02Module 8006073 Switch Mode Power Supply9Module 800607 DC/DC Converter 2622423 Insulating piece 2364066 Rivet 28695 Spring clips20Module 800609 Transformer left, type 60, 607, 608 8006092 Transformer left, type 602, 605 8006093 Transformer left, type 603 8006094 Transformer left, type 6042Module 800606 Transformer right, type 60, 607, 608 8006062 Transformer right, type 602, 605 8006063 Transformer right, type 603 8006064 Transformer right, type 60422Module 8006087 Power Amplifier 6200044 Band cable25Module 800609 NTC PCB3Module 8002938 LF Supply and Control32Module 8002935 Cross Field 34Module 8002932 Plug PCB35Module 8002937 Display, Keyboard and IR Receiver36Module 8002944 MicrocomputerSurvey of screws and washers 2046032 Allen screw, 6 x 32.7mm2 286267 Spring3 2622487 Washer 4 20376 Screw, 3 x 6mm5 20554 Screw, 3.5 x 25mm6 20388 Screw, 3 x 8mm7 2036082 Screw, 2.5 x 8mm8 75309 Solder tag9 2640054 Washer0 20056 Screw, 3 x 6mm 2038 Screw, 3 x 8mm3 262204 Washer4 262403 Washer5 20377 Screw, 3 x 3mm6 203803 Screw, 3 x 2mm7 2622247 Washer, 3.2 x 0.2 xmm8 3358305 Heat sink9 20567 Screw, 3.5 x 4mm20 2625039 Lock washer2 20055 Screw, 3 x 0mmABO-CENTER v/HENRIKSENS ELEKTRONIK8.2 Available partsAccessories 303302 Wall bracket, type 607 303235 Wall bracket 339048 Bag with parts f/Wall bracket 303333 Wall plate 3390468 Bag with parts f/Wall plate 606 Table stand 3390480 Bag with parts f/table stand 2560276 Cable cover, 0 piecesParts not shown 3947547 Foam, 3x9mm x 0m 3947350 Foam, 3x7mm x 0m 3947548 Foam, 6x7mm x 0m 398425 Heat sink compound 304006 Allen key, 4mm 600273 Mainscable EU, type 60 600329 Mainscable GB, type 602 600307 Mainscable US, type 603 600247 Mainscable JAP, type 604 600086 Mainscable AUS, type 605 600386 Mainscable KOR, type 607 600047 Mainscable CHK, type 608Survey of wire bundles 6276906 Wire bundle, left: 2P23 - 20P2 2P24 - 32P4 2P25 - 22P2 20P22 - 22P 22P3 - Tweeter 22P4 - Woofer 6276908 Wire bundle, right: 3GND - Chassis 3P4 - 9P3 3P5 - 2P5 3P6 - 22P2 3P7 - 32P5 3P8 - 32P6 22P3 - Tweeter 22P4 - Woofer 6200239 Varnished tubing PCB set 6276907 Mains socket wire bundlePacking 3392368 Outer carton 339792 Foam packing 3946038 Foam foilAvailable documentation See Retail Ordering SystemABO-CENTER v/HENRIKSENS ELEKTRONIKABO-CENTER v/HENRIKSENS ELEKTRONIKBang&OlufsenDK-7600StruerDenmarkPhone+4596841122*Fax+459785391106-06AABO-CENTER v/HENRIKSENS ELEKTRONIK