Aiwa-NSXSZ60-cs-sm维修电路原理图.pdf
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1、SERVICE MANUALDATACOMPACT DISC STEREOCASSETTE RECEIVERNSX-SZ60EZS/M Code No. 09-007-432-9R1REVISIONBASIC TAPE MECHANISM: 6ZM-3 YPR2NBASIC CD MECHANISM: AZG-1 YZA3RDM This Service Manual is the “Revision Publishing” and replaces “Simple Manual”NSX-SZ60, (S/M Code No. 09-004-432-9T1). If requiring inf
2、ormation about the CD mechanisim, see Service Manual of AZG-1(S/M Code No. 09-001-335-3NC).CD-CASSEIVERCX-NSZ60SPEAKERSX-WNSZ71SYSTEMNSX-SZ60REMOTE CONTROLLERRC-ZAS01RadioFans.CN 收音机爱 好者资料库SPECIFICATIONSTuning range87.5 MHz to 108 MHzUsable sensitivity(IHF)13.2 dBfAntenna terminals75 ohms (unbalance
3、d)Tuning range531 kHz to 1602 kHz (9 kHz step)530 kHz to 1710 kHz (10 kHz step)Usable sensitivity350 uV/mAntennaLoop antennaTuning range144 kHz to 290 kHzUsable sensitivity1400 uV/mAntennaLoop antennaMid-high frequency amplifier Power outputRated: 20 W + 20 W(8 ohms, T.H.D. 1 %,1 kHz/DIN 45500)Refer
4、ence: 25 W + 25 W(8 ohms, T.H.D. 10 %,1 kHz/DIN 45324)DIN MUSIC POWER:40 W + 40 W Total harmonic distortion 0.1 % (10 W, 1 kHz, 8 ohms,DIN AUDIO)Low frequency amplifier Power outputRated: 60 W + 60 W (6 ohms,T.H.D. 1 %, 130 Hz/DIN 45500)Reference: 75 W + 75 W (6 ohms,T.H.D. 10 %,130 Hz/DIN 45324)DIN
5、 MUSIC POWER:130 W + 130 W Total harmonic distortion 0.1 % (35 W,130 Hz,6 ohms,DIN AUDIO)InputsVIDEO/AUX : 500 mVOutputsSPEAKERS HIGH FREQ :accept speakers of 8 ohms or moreSPEAKERS LOW FREQ :accept speakers of 6 ohms or moreSURROUND SPEAKERS :accept speakers of 8 to 16 ohmsLINE OUT: 210 mVPHONES (s
6、tereo jack) : acceptsheadphones of 32 ohms or moreTrack format4 tracks, 2 channels stereoFrequency response50 Hz 15000 HzRecording systemAC biasHeadsDeck 1: Playback head x 1Deck 2: Recording/Playback headx 1, erase head x 1LaserSemiconductor laser ( =780 nm)D-A converter1 bit dualSignal-to-noise ra
7、tio85 dB (1 kHz, 0 dB)Harmonic distortion0.05 % (1 kHz, 0 dB)Wow and flutterUnmeasurableSpeaker system3 way, Built-in subwoofer(magneticshielded typeSpeaker unitsSubwoofer :160 mm cone typeFull range:100 mm cone typeSuper Tweeter :20 mm ceramic typeImpedance6 ohms / 8 ohmsSensitivity87 dB/W/mDimensi
8、ons (W x H x D)240 x 324 x 281 mmWeight5.2 kgPower requirements230 V AC, 50 HzPower consumption150WPower consumption inIf the power-economizing mode isstandby modeECO OFF: 20 WIf the power-economizing mode isECO ON or ECO AUTO: 0.9 WDimensions (W x H x D)260 x 330 x 345 mmWeight8.5 kg Design and spe
9、cifications are subject to change without notice. The word BBEand the BBE symbol are trademarks of BBE Sound, Inc. Under license from BBE Sound,Inc. 2 ACCESSORIES / PACKAGE LISTKANRINO.REF. NO.DESCRIPTIONPART NO. 1 8A-NFH-906-010 IB,EZ(9L)E 2 87-006-225-010 AM LOOP ANT NC2 3 87-A90-118-010 ANT,WIRE
10、FM (Z) 4 8Z-NF8-702-010 RC UNIT,RC-ZAS01RadioFans.CN 收音机爱 好者资料库 3 CLASS 1LASER PRODUCTKLASSE 1LASER PRODUKTLUOKAN 1LASER LAITEKLASS 1LASER APPARATThis set employs laser. Therefore, be sure to follow carefullythe instructions below when servicing.WARNING!WHEN SERVICING, DO NOT APPROACH THE LASEREXIT
11、WITH THE EYE TOO CLOSELY. IN CASE IT ISNECESSARY TO CONFIRM LASER BEAM EMISSION.BE SURE TO OBSERVE FROM A DISTANCE OF MORETHAN 30cm FROM THE SURFACE OF THE OBJEC-TIVE LENS ON THE OPTICAL PICK-UP BLOCK.sCaution: Invisible laser radiation whenopen and interlocks defeated avoidexposure to beam.sAdvarse
12、l: Usynlig laserstling ved bning,nr sikkerhedsafbrydere er ude af funktion.Undg udsttelse for strling.VAROITUS!Laiteen Kyttminen muulla kuin tss kyttohjeessamainitulla tavalla saataa altistaa kyt-tjnturvallisuusluokan 1 ylittvlle nkymttmllelasersteilylle.VARNING!Om apparaten anvnds p annat stt n vad
13、 somspecificeras i denna bruksanvising, kan anvndarenutsttas fr osynling laserstrlning, som verskridergrnsen fr laserklass 1.PROTECTION OF EYES FROM LASER BEAM DURING SERVICINGCAUTIONUse of controls or adjustments or performance of proce-dures other than those specified herin may result inhazardous
14、radiation exposure.ATTENTIONLutillisation de commandes, rglages ou procduresautres que ceux spcifis peut entraner une dangereuseexposition aux radiations.ADVARSELUsynlig laserstling ved bning, nr sikkerhedsafbrydereerude af funktion. Undg udsttelse for strling.This Compact Disc player is classified
15、as a CLASS 1LASER product.The CLASS 1 LASER PRODUCT label is located on therear exterior.Precaution to replace Optical block(KSS-213F)Body or clothes electrostatic potential couldruin laser diode in the optical block. Be sureground body and workbench, and use care theclothes do not touch the diode.1
16、) After the connection, remove solder shown inright figure.PICK-UP Assy P.C.BSolderRadioFans.CN 收音机爱 好者资料库NOTE ON BEFORE STARTING REPAIRCharging voltage (V)Discharging Rated power (W)Parts number(C101, 102)resistor ()25-48100387-A00-247-09049-140220587-A00-232-090Note: The reference numbers (C101, C
17、102) 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 items before exchanging the MICROCOMPUTERBe sure to check the following items before exchanging
18、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 MICROCOMPUTER is “H”, the MICROCOMPUTER is judged to be operating correctly.When this terminal is “L”, t
19、he 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 POWER AMPLIFIER has anyabnormalities that triggers the abnormality detection circuit on the MAIN
20、 C. B. that sets the HOLD terminal to “L”.Good or no good judgement of the MICROCOMPUTER11111Turn on the AC main power.22222Confirm that the main power is turned on and the HOLD terminal of the MICROCOMPUTER keeps the “H” level or not.33333When the HOLD terminal is “L” level, the abnormality detecti
21、on 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 relay circuit in the power supply block, electric potential is kept charged acrossthe el
22、ectrolytic 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 before starting repair work.Discharge procedure11111Remove the AC power cord.22222Conn
23、ect a discharging resistor at an end of lead wire thathas clips at both ends. Connect the other end of the leadwire to metal chassis.33333Contact the other end of the discharging resistor to thepositive (+) side (+VH) of C101. (For two seconds)44444Contact the same end of the discharging resistor as
24、 step33333 to the negative (-) side (-VH) of C102 in the same way.(For two seconds)55555Check that voltage across C101 and C102 has decreasedto 1 V or less using a multimeter or an oscilloscope.Select a discharging resistor referring to the following table.Fig-1MAIN C.BD101C101C1022234 4 RadioFans.C
25、N 收音机爱 好者资料库In such a case, check also if the POWER AMPLIFIER circuit or power supply circuit has any abnormalities or not.2-2. Regarding resetThere are cases that the machine does not work correctly because the MICROCOMPUTER is not reset even though the AC powercord is re-inserted, or the software
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