Aiwa-NSXAJ14-cs-sm维修电路原理图.pdf
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1、SERVICE MANUALCOMPACT DISC STEREOCASSETTE RECEIVERBASIC TAPE MECHANISM : ZZM-2 PR1NMBASIC CD MECHANISM : AZG-1 ZA3RNDMNSX-AJ14NSX-BL14ENSX-BL14NSX-BL16UHAHS, EZ, KEZS/M Code No. 09-004-428-8R2REVISION If requiring information about the CD mechanism, see Service Manual of AZG-1 (S/M Code No. 09-001-3
2、35-3NC). This Service Manual is the “Revision Publishing” and replaces “Simple Manual” NSX-AJ14(U)/BL14E(HA)/BL14(HS,EZ,K)/BL16(EZ),(S/M Code No. 09-003-428-8T2).DATANSX-AJ14SPEAKERSYSTEMCDCASSEIVERREMOTECONTROLLERNSX-BL14NSX-BL16CX-NAJ14SX-NAJ11CX-NBL14SX-NBL11SX-NBL16RC-ZAS02NSX-BL14ECX-NBL14ESX-N
3、BL17RadioFans.CN 收音机爱 好者资料库 2 Tuning range87.5 MHz to 108 MHzUsable sensitivity (IHF)U,HA,HS: 13.2 dBfEZ,K: 16.8 dBfAntenna terminals75 ohms (unbalanced)Tuning range530 kHz to 1710 kHz (10 kHz step)531 kHz to 1602 kHz (9 kHz step)Usable sensitivity350 V/mAntennaLoop antennaTuning range144 kHz to 290
4、 kHzUsable sensitivity1400 V/mAntennaLoop antennaPower outputRatedU: 10 W + 10 W (50 Hz - 20 kHz,T.H.D. less than 1%, 6 ohms) 15 W + 15 W(1 kHz, T.H.D. less than 10%, 6 ohms)HA: 28 W + 28 W (1 kHz, T.H.D. 1%,6 ohms)Reference: 35 W + 35 W(1 kHz, T.H.D. 10%, 6 ohms)HS: 17 W + 17 W (1 kHz, T.H.D. 1%,6
5、ohms)Reference: 20 W + 20 W(1 kHz, T.H.D. 10%, 6 ohms)EZ,K: 12 W + 12 W (1 kHz/DIN 45500,T.H.D. 1%, 6 ohms)Reference: 15 W + 15 W(1 kHz/DIN 45324, T.H.D. 10%, 6 ohms)EZ:DIN MUSIC POWER: 30 W + 30 WTotal harmonic distortion U,EZ,K: 0.1% (6 W, 1 kHz, 6 ohms,DIN AUDIO)HA: 0.1% (14 W, 1 kHz, 6 ohms,DIN
6、AUDIO)HS: 0.1% (8 W, 1 kHz, 6 ohms,DIN AUDIO)InputsVIDEO/AUX: 500 mVHS: MIC 1.8 mV(10 kohms)OutputsSPEAKERS: accept speakers of 6ohms or morePHONES (stereo jack) : acceptsheadphones of 32 ohms or moreTrack format4 tracks, 2 channels stereoFrequency response50 Hz - 8000 HzRecording systemAC biasHeads
7、Deck 1 : Recording/Playback head x 1, erase head x 1Deck 2 : Playback head x 1LaserSemiconductor laser ( =780 nm)D-A converter1 bit dualSignal-to-noise ratio85 dB (1 kHz, 0 dB)Harmonic distortion0.05 % (1 kHz, 0 dB)SX-NAJ11Speaker System2 way, bass reflex (magneticshielded type)Speaker unitsWoofer:1
8、20 mm (43/4 in.) cone typeTweeter:20 mm (13/16 in.) cone typeImpedance6 ohmsSensitivity87 dB/W/mDimensions (W x H x D)220 x 324 x 211 mm(83/4 x 127/8 x 83/8 in.)Weight2.0 kg (4 lbs 7 oz.)SPECIFICATIONSSX-NBL17,SX-NBL11, SX-NBL16Speaker System2 way, bass reflex (magnetic shieldedtype)Speaker unitsWoo
9、fer:120 mm cone typeTweeter:20 mm cone typeImpedance6 ohmsSensitivity87 dB/W/mDimensions (W x H x D)220 x 324 x 211 mmWeight2.0 kgPower requirementsU: 120 V AC, 60 HzHA: 120 V/220-230 V/240 V AC(switchable), 50/60 HzHS: 220 V AC, 60 HzEZ,K: 230 V AC, 50 HzPower consumptionU: 38 WHA: 55 WHS: 60 WEZ,K
10、: 45 WPower consumptionU: With power-economizing in standby modemode off : 8 WHA: With power-economizingmode off : 12 WHS,EZ,K: With power-economizingmode off : 14 WWith power-economizing mode on :0.9 WDimensions of main unitU,EZ,K:(W x H x D)260 x 324 x 348 mm(101/4 x 127/8 x 133/4 in.)HA,HS: 260 x
11、 324 x 348 mmWeight of main unitU: 4.8 kg (10 lbs 9 oz.)HA: 5.7 kgHS: 5.0 kgEZ,K: 4.9 kg Design and specifications are subject to change without notice.RadioFans.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
12、 to follow carefullythe instructions below when servicing.WARNING!WHEN SERVICING, DO NOT APPROACH THE LASEREXIT 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 P
13、ICK-UP BLOCK.sCaution: Invisible laser radiation whenopen and interlocks defeated avoidexposure to beam.sAdvarsel: Usynlig laserstling ved bning,nr sikkerhedsafbrydere er ude af funktion.Undg udsttelse for strling.VAROITUS!Laiteen Kyttminen muulla kuin tss kyttohjeessamainitulla tavalla saattaa alti
14、staa kyt-tjnturvallisuusluokan 1 ylittvlle nkymttmllelasersteilylle.VARNING!Om apparaten anvnds p annat stt n vad somspecificeras i denna bruksanvising, kan anvndarenutsttas fr osynling laserstrlning, som verskridergrnsen fr laserklass 1.PROTECTION OF EYES FROM LASER BEAM DURING SERVICINGCAUTIONUse
15、of controls or adjustments or performance of proce-dures other than those specified herein may result inhazardous radiation exposure.ATTENTIONLutillisation de commandes, rglages ou procduresautres que ceux spcifis peut entraner une dangereuseexposition aux radiations.ADVARSELUsynlig laserstling ved
16、bning, nr sikkerhedsafbrydereerude af funktion. Undg udsttelse for strling.This Compact Disc player is classified as a CLASS 1LASER product.The CLASS 1 LASER PRODUCT label is located on therear exterior.PICK-UP ASSYP.C.BPrecaution to replace Optical block(KSS-213F)Body or clothes electrostatic poten
17、tial couldruin laser diode in the optical block. Be sureground body and workbench, and use care theclothes do not touch the diode.1) After the connection, remove solder shown inright figure.SOLDERRadioFans.CN 收音机爱 好者资料库 4 NOTE ON BEFORE STARTING REPAIRCharging voltage (V)Discharging Rated power (W)P
18、arts number(C101, 102)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 discha
19、rging work.2. Check 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 (IN
20、PUT) of the MICROCOMPUTER 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 a
21、lso go “L” when the 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 MICROCOMPUTER11111Turn on the AC main power.22222Confirm that the main power is turned on and the HOLD termin
22、al of the MICROCOMPUTER keeps the “H” level or not.33333When 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 att
23、empted in the set that uses relay 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, p
24、erform the following measures before starting repair work.Discharge procedure11111Remove the AC power cord.22222Connect 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 resis
25、tor to thepositive (+) side (+VH) of C101. (For two seconds)44444Contact the same end of the discharging resistor as 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 osc
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