Aiwa-NSXBL57-cs-sm维修电路原理图.pdf
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1、SERVICE MANUALDATANSXBL54SYSTEMCDCASSEIVERREMOTE CONTROLLERCXNBL54COMPACT DISCSTEREO SYSTEMBASIC TAPE MECHANISM : 2ZM-3MK2 PR4NM(HT)BASIC TAPE MECHANISM : 2ZM-3MK2 YPR4NM(HA/LH)BASIC CD MECHANISM : AZG-1 ZA3RDM(HT)BASIC CD MECHANISM : AZG-1 YZA3RDCM(HA)BASIC CD MECHANISM : AZG-1 YZA3RDM(LH)NSX-BL54N
2、SX-BL54ENSX-BL57HTHALHS/M Code No. 09-002-429-5N5 If requiring information about the CD mechanism, see Service Manual of AZG-1(S/M Code No. 09-001-335-3NC).SPEAKERSXWNBL53NSXBL54ECXNBL54ESXWNBL53RCZAS01NSXBL57CXNBL57SXWNBL53RadioFans.CN 收音机爱 好者资料库2Main unit CX-NBL54/CX-NBL54E/CX-NBL57FM tuner sectio
3、nTuning range87.5 MHz to 108 MHzUsable sensitivity (IHF)13.2 dBfAntenna terminal75 ohms (unbalanced)AM (MW) tuner sectionTuning range531 kHz to 1602 kHz (9 kHz step)530 kHz to 1710 kHz (10 kHz step)Usable sensitivity350 V/mAntennaLoop antennaSW tuner section Tuning range5.730 MHz to 17.900 MHzAntenn
4、aWire antennaAmplifier sectionMid-high frequency amplifier Power outputRated: 20 W + 20 W (8 ohms,T.H.D. 1 %, 1 kHz)Reference : 25 W + 25 W (8 ohms,T.H.D. 10 %, 1 kHz) Total harmonic distortion0.1 % (10 W, 1 kHz, 8 ohms, DINAUDIO)Low frequency amplifier Power outputRated: 60 W + 60 W (6 ohms,T.H.D.
5、1 %, 130 Hz)Reference : 75 W + 75 W (6 ohms,T.H.D. 10 %, 130 Hz) Total harmonic distortion0.1 % (30W, 130 Hz, 6 ohms, DINAUDIO)InputsVIDEO/AUX: 500 mVMIC1.0 mV (10 k ohms)OutputsSPEAKERS HIGH FREQ:accept speakers of 8 ohms or moreSPEAKERS LOW FREQ:accept speakers of 6 ohms or moreSURROUND SPEAKERS:a
6、ccept speakers of 8 ohms to 16ohmsPHONES (stereo jack): acceptsheadphones of 32 ohms or moreSPECIFICATIONSCassette deck sectionTrack format4 tracks, 2 channels stereoFrequency response50 Hz 15000 HzRecording systemAC biasHeadsDeck 1: Playback head x 1Deck 2: Recording/playback head x 1, erase head x
7、 1Compact disc player sectionLaserSemiconductor laser ( = 780 nm)D-A converter1 bit dualSignal-to-noise ratio85 dB (1 kHz, 0 dB)Harmonic distortion0.05 % (1 kHz, 0 dB)Wow and flutterUnmeasurableGeneralPower requirements120 V/220 230 V/240 V AC,switchable 50/60 HzPower consumption150 WPower consumpti
8、on in standby modeIf the power-economizing mode isECO OFF: 20 WIf the power-economizing mode isECO ON or ECO AUTO: 0.9 WDimensions of main unit260 x 326 x 346 mm(W x H x D)Weight of main unit9.0 kgSpeaker system SX-WNBL53Speaker system3 way, Built-in subwoofer (magneticshielded type)Speaker unitsSub
9、woofer: 160 mm cone typeFull range: 100 mm cone typeSuper tweeter: 20 mm ceramic typeImpedance6 ohms/8 ohmsSensitvity87 dB/W/mDimensions (W x H x D)230 x 324 x 282 mmWeight4.8 kgREF. NOPART NO.KANRIDESCRIPTIONNO.ACCESSORIES LIST 1 8A-NFJ-930-010 IB,HA-KIT (ARG) 1 8A-NFJ-901-010 IB,H(ECA)M 1 8A-NFJ-9
10、32-010 IB,LH-KIT (BRA) 2 8Z-NF8-702-010 RC UNIT,RC-ZAS01 3 87-006-225-010 ANT,LOOP ANT NC2 3 87-006-226-010 ANT,LOOP AM 3 87-006-269-010 ANT,LOOP AM 4 87-043-115-010 FEEDER-ANT,FM 5 87-A90-119-010 ANT,WIRE SW(5M)!6 87-A91-017-010 PLUG,CONVERSION JT-0476 Design and specifications are subject to chang
11、e without notice. The word “BBE” and the “BBE symbol” are trademarks of BBESound, Inc. Under license from BBE Sound, Inc.RadioFans.CN 收音机爱 好者资料库3PROTECTION OF EYES FROM LASER BEAM DURING SERVICINGVAROITUS!Laiteen Kyttminen muulla kuin tss kyttohjeessa mainit-ulla tavalla saattaa altistaa kyt-tjn tur
12、vallisuusluokan 1 ylit-tvlle nkymttmlle lasersteilylle.VARNING!Om apparaten anvnds p annat stt n vad som specificeras idenna bruksanvising, kan anvndaren utsttas fr osynlinglaserstrlning, som verskrider grnsen fr laserklass 1.Caution: Invisible laser radiation whenopen and interlocks defeated avoid
13、expo-sure to beam.Advarsel:Usynling laserstling ved bning,nr sikkerhedsafbrydere er ude af funktion.Undg udsttelse for strling.CAUTIONUse of controls or adjustments or performance of proceduresother than those specified herein may result in hazardousradiation exposure.ATTENTIONLutilisation de comman
14、des, rglages ou procdures autres queceux spcifis peut entraner une dangereuse exposition auxradiations.ADVARSEL!Usynlig laserstling ved bning, nr sikkerhedsafbrydereer udeaf funktion. Undg udsttelse for strling.This Compact Disc player is classified as a CLASS 1 LASERproduct.The CLASS 1 LASER PRODUC
15、T label is located on the rearexterior.This set employs laser. Therefore, be sure to follow carefully theinstructions below when servicing.WARNING!WHEN SERVICING, DO NOT APPROACH THE LASER EXITWITH THE EYE TOO CLOSELY. IN CASE IT IS NECESSARY TOCONFIRM LASER BEAM EMISSION. BE SURE TO OBSERVEFROM A D
16、ISTANCE OF MORE THAN 30cm FROM THESURFACE OF THE OBJECTIVE LENS ON THE OPTICALPICK-UP BLOCK.CLASS 1KLASSE 1LUOKAN 1KLASS 1LASER PRODUCTLASER PRODUKTLASER LAITELASER APPARATPrecaution to replace Optical block1) After the connection, remove solder shown inthe figure below.Body or clothes electrostatic
17、 potential could ruinlaser diode in the optical block. Be sure groundbody and workbench, and use care the clothesdo not touch the diode.SolderZA8/ZD8 MODELZA3/ZA4 (KSS-213F) MODELRadioFans.CN 收音机爱 好者资料库4NOTE ON BEFORE STARTING REPAIRCharging voltage (V)Discharging Rated power (W)Parts number(C101, 1
18、02)resistor ()25-48100387-A00-247-09049-140220587-A00-232-090Note: The reference numbers (C101, C102) of the electrolytic capacitors can change depending on the models. Be sure to check thereference numbers of the charging capacitors on schematic diagram before starting the discharging work.2. Check
19、 items before exchanging the MICROCOMPUTERBe sure to check the following items before exchanging the MICROCOMPUTER. Exchange the MICROCOMPUTER after confirmingthat the MICROCOMPUTER is surely defective.2-1. Regarding the HOLD terminal of the MICROCOMPUTERWhen the HOLD terminal (INPUT) of the MICROCO
20、MPUTER is “H”, the MICROCOMPUTER is judged to be operating correctly.When this terminal is “L”, the main power cannot be turned on. Therefore, be sure to check the terminal voltage of the HOLDterminal before exchange.When the MICROCOMPUTER is not defective, the HOLD terminal can also go “L” when the
21、 POWER AMPLIFIER has anyabnormalities that triggers the abnormality detection circuit on the MAIN C. B. that sets the HOLD terminal to “L”.Good or no good judgement of the MICROCOMPUTER1Turn on the AC main power.2Confirm that the main power is turned on and the HOLD terminal of the MICROCOMPUTER kee
22、ps the “H” level or not.3When the HOLD terminal is “L” level, the abnormality detection circuit is judged to be working correctly and theMICROCOMPUTER is judged to be good.1. Forced discharge of electrolytic capacitor of power supply blockWhen repair is going to be attempted in the set that uses rel
23、ay circuit in the power supply block, electric potential is kept charged acrossthe electrolytic capacitors (C101, 102) even though AC power cord is removed. If repair is attempted in this condition, secondary defectcan occur.In order to prevent the secondary trouble, perform the following measures b
24、efore starting repair work.Discharge procedure1Remove the AC power cord.2Connect a discharging resistor at an end of lead wire thathas clips at both ends. Connect the other end of the leadwire to metal chassis.3Contact the other end of the discharging resistor to thepositive (+) side (+VH) of C101.
25、(For two seconds)4Contact the same end of the discharging resistor as step 3to the negative (-) side (-VH) of C102 in the same way.(For two seconds)5Check that voltage across C101 and C102 has decreasedto 1 V or less using a multimeter or an oscilloscope.Select a discharging resistor referring to th
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