Aiwa-NSXSZ50-cs-sm维修电路原理图.pdf

SERVICE MANUALDATACOMPACT DISC STEREOSYSTEMBASIC TAPE MECHANISM : ZZM-3 PR1NM 2ZM-3MK2 PR4NMBASIC CD MECHANISM : AZG-1 ZD8RDMNSX-AJ50NSX-SZ50ULHS/M Code No. 09-003-424-6R1REVISION This Service Manual is the Revision Publishing and replaces Simple Manual, (S/M Code No. 09-99C-424-6T1). If requiring information about the CD mechanism, see Service Manual of AZG-1, (S/M Code No. 09-001-335-3N6).NSX-AJ50SPEAKERSYSTEMCDCASSEIVERREMOTECONTROLLERNSX-SZ50CX-NAJ50SX-WNAJ50CX-NSZ50SX-WNSZ50RC-ZAS02RC-ZAS01RadioFans.CN 收音机爱 好者资料库 2 Tuning range87.5 MHz to 108 MHzUsable sensitivity (IHF)13.2 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 antennaMid-high frequency amplifierPower outputU : 20 W + 20 W (200 Hz to 20 kHz,T.H.D. less than 1 %, 8 ohms)LH : Rated : 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 % (10W, 1 kHz, 8 ohms, DINAUDIO)Low frequency amplifierPower outputU : 60 W + 60 W (50 Hz to 200Hz,T.H.D. less than 1 %, 6 ohms)LH : Rated : 60 W + 60 W (6 ohms,T.H.D. 1 %, 130 Hz)Reference : 75 W + 75 W (6 ohms,T.H.D. 10 %, 130 Hz)Total harmonic distortion0.1 % (30W, 130 kHz, 6 ohms, DINAUDIO)InputsVIDEO / AUX: 500 mVLH : MIC 1.0mV(10 K ohms)OutputsSPEAKERS HIGH FREQ:accept speakers of 8 ohms or moreSPEAKERS LOW FREQ:accept speakers of 6 ohms or moreU : SURROUND SPEAKERS:accept speakers of 8 ohms to 16 ohmsPHONES (stereo jack): acceptsheadphones of 32 ohms or moreTrack format4 tracks, 2 channels stereoFrequency response50 Hz 16000 HzRecording systemAC biasHeadsDeck 1 : Playback head x 1Deck 2 : Recording / Playback head x 1, erase head x 1SPECIFICATIONSLaserSemiconductor laser ( = 780 nm)D-A converter1 bit dualSignal-to-noise ratio85 dB (1 kHz, 0 dB)Harmonic distortion0.05 % (1 kHz, 0 dB)Power requirementsU : 120 V AC, 60 HzLH : 120V/220 230V/240V ACswitchable, 50/60 HzPower consumptionU : 110 WLH : 130 WStandby power consumption 20 W (power-economizingmode set to OFF)0.9 W (power-economizingmode set to ON)Dimensions of main unitU : 240 x 324.6 x 271 mm(W x H x D)(91/2 x 127/8 x 103/4 in.)LH : 260 x 326 x 345 mmWeight of main unitU : 8.0 kg (17 lbs 10 oz.)LH : 9.0 kgSpeaker system SX-WNAJ50(U)/SX-WNSZ50(LH)Speaker system3 way, bass reflex (magneticshielded type)Speaker unitsSubwoofer :160 mm(63/8 in.) cone typeFull range :100 mm(4 in.) cone typeSuper tweeter:20 mm (13/16 in.) ceramic typeImpedance6 ohms/8 ohmsSensitvity86 dB/W/mDimensions240 x 324 x 271 mm(W x H x D)(91/2 in. x 127/8 x 103/4 in.)Weight4.8 kg (10 lbs 9 oz.) Design and specifications are subject to change without notice. The word BBEand the BBE symbol are trademarks of BBE Sound, Inc. Under license from BBE Sound,Inc.Main unit CX-NAJ50(U)/CX-NSZ50(LH)RadioFans.CN 收音机爱 好者资料库 3 PROTECTION OF EYES FROM LASER BEAM DURING SERVICINGVAROITUS!Laiteen Kyttminen muulla kuin tss kyttohjeessa mainit-ulla tavalla saattaa altistaa kyt-tjn turvallisuusluokan 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 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 commandes, 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 PRODUCT 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 DISTANCE 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 block(KSM-880CAB)1) After the connection, remove solder shown inthe right figure.Body or clothes electrostatic potential could ruinlaser diode in the optical block. Be sure groundbody and workbench, and use care the clothesdo not touch the diode.solderPICK-UP Assy P.C.BRadioFans.CN 收音机爱 好者资料库 4 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, 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 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 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 also 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 terminal 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 attempted 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, perform 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 resistor 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 oscilloscope.Select a discharging resistor referring to the following table.Fig-1MAIN C.BD101C101C1022234RadioFans.CN 收音机爱 好者资料库 5 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 reset (pressing the STOP key + POWER key) is performed.When the above described phenomenon occurs, it can lead to wrong judgement as if the MICROCOMPUTER is defective and toexchange the MICROCOMPUTER. In such a case, perform the forced-reset by the following procedure and check good or nogood of the MICROCOMPUTER.11111Remove the AC power cord.22222Short both ends of the electrolytic capacitor C113 that is connected to VDD of the MICROCOMPUTER with tweezers.33333Connect the AC power cord again. If the MICROCOMPUTER returns to the normal operation, the MICROCOMPUTER isgood.Note: The reference number or MICROCOMPUTER pin number of transistor (Q110) and electrolytic capacitor (C113) can change dependingon the models. Be sure to check the reference numbers on schematic diagram before starting the discharging work.2-3. Confirmation of soldering state of MICROCOMPUTERCheck the soldering state of the MICROCOMPUTER in addition to the above described procedures. Be sure to exchange theMICROCOMPUTER after surely confirming that the trouble is not caused by poor soldering but the MICROCOMPUTER itself.Fig-2-2MICRO-COMPUTERMICROCOMPUTERFRONT C.BFRONT C.BVSSVDDC113*%C1131815Short with tweezers.RadioFans.CN 收音机爱 好者资料库 6 ELECTRICAL MAIN PARTS LISTDESCRIPTIONREF. NO.KANRINO.PART NO.DESCRIPTIONREF. NO.KANRINO.PART NO.IC 87-A21-417-010 IC,STK490-310 8A-NF8-610-010 C-IC,LC866548V-5P03 87-A21-396-010 IC,STK490-040 87-A21-482-010 IC,RPM6938-H4 87-A21-419-040 IC,NJM14558MD-TE2 87-A21-023-040 C-IC,BA3835F 87-A21-401-040 C-IC,M61503FP 87-070-289-040 IC,BU 2092F 87-070-127-110 IC,LC72131 D 87-A21-415-010 IC,LA1843 87-A21-269-010 IC,EW732 87-020-454-010 IC,DN6851TRANSISTOR 87-026-609-080 TR,KTA1266GR 89-213-702-010 TR,2SB1370 (1.8W) 87-026-610-080 TR,KTC3198GR 87-A30-076-080 C-TR,2SC3052F 87-A30-075-080 C-TR,2SA1235F 87-026-245-080 TR,DTC114ES 87-A30-198-080 TR,KTC3199GR 87-A30-107-070 C-TR,CMBT5401 87-A30-106-040 C-TR,CMBT5551 87-A30-087-080 C-FET,2SK2158 87-A30-074-080 C-TR,RT1P 141C 87-A30-091-080 FET,2SJ460 87-A30-318-080 TR,CSA952K 87-A30-090-080 FET,2SK2541 87-A30-329-080 TR,CD1585BC 87-A30-104-080 C-TR,RT1N 441C 87-A30-073-080 C-TR,RT1N 141C 89-333-317-880 TR,2SC3331 (0.5W) 87-A30-269-040 C-FET,2SJ461-T1 89-327-143-080 C-TR,2SC2714O (0.1W) 87-A30-072-080 C-TR,RT1P 144C 87-A30-234-080 TR,CSC4115BCDIODE 87-A40-393-090 DIODE,1N5402GW(F20) 87-A40-736-080 DIODE,1N4148M(SEM) 87-A40-548-090 DIODE,D3SBA20 87-A40-547-090 DIODE,D5SBA20 87-A40-455-080 DIODE,RL203 GW 87-A40-553-080 DIODE,1N4003 LES 87-A40-776-080 ZENER,UZ27BSD 87-A40-764-080 ZENER,UZ10BSC 87-A40-313-080 C-DIODE,MC 2840 87-A40-270-080 C-DIODE,MC2838 87-A40-269-080 C-DIODE,MC2836 87-A40-768-080 ZENER,UZ16BSA 87-A40-752-080 ZENER,UZ6.2BSC 87-A40-802-080 ZENER,UZ5.1BSC 87-A40-739-080 ZENER,UZ2.7BSA 87-017-149-080 ZENER,HZS6A2LMAIN C.B C3 87-012-368-080 C-CAP,S 0.1-50 F C4 87-012-368-080 C-CAP,S 0.1-50 F C5 87-012-368-080 C-CAP,S 0.1-50 F C6 87-012-368-080 C-CAP,S 0.1-50 F C9 87-012-368-080 C-CAP,S 0.1-50 F C10 87-012-368-080 C-CAP,S 0.1-50 F C11 87-012-368-080 C-CAP,S 0.1-50 F C12 87-012-368-080 C-CAP,S 0.1-50 F C15 87-012-368-080 C-CAP,S 0.1-50 F C16 87-012-368-080 C-CAP,S 0.1-50 F C17 87-012-368-080 C-CAP,S 0.1-50 F C18 87-012-368-080 C-CAP,S 0.1-50 F C19 87-016-520-000 CAP,E 3300-65 M SMG C20 87-016-520-000 CAP,E 3300-65 M SMG C21 87-016-051-000 CAP,E 2200-35 M SMG C22 87-016-051-000 CAP,E 2200-35 M SMG C23 87-016-658-000 CAP,E 4700-35 M SMG C24 87-016-658-000 CAP,E 4700-35 M SMG C25 87-010-408-080 CAP, ELECT 47-50V C26 87-010-247-080 CAP, ELECT 100-50V C30 87-010-430-080 CAP, ELECT 100-63 C31 87-010-263-080 CAP, ELECT 100-10V C32 87-010-197-080 CAP, CHIP 0.01 DM C33 87-010-263-080 CAP, ELECT 100-10V C34 87-010-260-080 CAP, ELECT 47-25V C35 87-015-682-080 CAP,E 22-16 7L C36 87-010-381-080 CAP, ELECT 330-16V C38 87-010-197-080 CAP, CHIP 0.01 DM C60 87-010-403-080 CAP, ELECT 3.3-50V C61 87-010-260-080 CAP, ELECT 47-25V C101 87-010-183-080 C-CAP,S 2700P-50 B C102 87-010-183-080 C-CAP,S 2700P-50 B C103 87-010-545-080 CAP, ELECT 0.22-50V C104 87-010-545-080 CAP, ELECT 0.22-50V C107 87-010-405-080 CAP, ELECT 10-50V C108 87-010-405-080 CAP, ELECT 10-50V C111 87-010-405-080 CAP, ELECT 10-50V C112 87-010-405-080 CAP, ELECT 10-50V C113 87-010-866-080 CAP, ELECT 10-63 C114 87-010-866-080 CAP, ELECT 10-63 C119 87-010-197-080 CAP, CHIP 0.01 DM C120 87-010-197-080 CAP, CHIP 0.01 DM C125 87-012-368-080 C-CAP,S 0.1-50 F C126 87-012-368-080 C-CAP,S 0.1-50 F C127 87-012-368-080 C-CAP,S 0.1-50 F C128 87-012-368-080 C-CAP,S 0.1-50 F C133 87-010-186-080 CAP,CHIP 4700P C140 87-010-182-080 C-CAP,S 2200P-50 B C141 87-010-196-080 CHIP CAPACITOR,0.1-25 C203 87-010-182-080 C-CAP,S 2200P-50 B C204 87-010-182-080 C-CAP,S 2200P-50 B C209 87-010-402-080 CAP, ELECT 2.2-50V C210 87-010-402-080 CAP, ELECT 2.2-50V C211 87-010-184-080 CHIP CAPACITOR 3300P(K) C212 87-010-184-080 CHIP CAPACITOR 3300P(K) C213 87-010-402-080 CAP, ELECT 2.2-50V C214 87-010-402-080 CAP, ELECT 2.2-50V C217 87-010-405-080 CAP, ELECT 10-50V C218 87-010-405-080 CAP, ELECT 10-50V C220 87-010-405-080 CAP, ELECT 10-50V C223 87-010-190-080 S CHIP F 0.01 C224 87-010-190-080 S CHIP F 0.01 C228 87-010-405-080 CAP, ELECT 10-50V C229 87-010-993-080 C-CAP,S 0.056-25 B C230 87-010-993-080 C-CAP,S 0.056-25 B C231 87-010-196-080 CHIP CAPACITOR,0.1-25 C232 87-010-196-080 CHIP CAPACITOR,0.1-25 C239 87-010-196-080 CHIP CAPACITOR,0.1-25 C301 87-010-178-080 CHIP CAP 1000P C302 87-010-178-080 CHIP CAP 1000P C303 87-010-178-080 CHIP CAP 1000P C304 87-010-178-080 CHIP CAP 1000P C307 87-010-263-080 CAP, ELECT 100-10V C308 87-010-263-080 CAP, ELECT 100-10V C309 87-010-318-080 C-CAP,S 47P-50 CH C310 87-010-318-080 C-CAP,S 47P-50 CH C313 87-010-188-080 CAP,CHIP 6800P C314 87-010-188-080 CAP,CHIP 6800P C315 87-010-263-080 CAP, ELECT 100-10VRadioFans.CN 收音机爱 好者资料库 7 C317 87-010-546-080 CAP, ELECT 0.33-50V C318 87-010-546-080 CAP, ELECT 0.33-50V C326 87-010-198-080 CAP, CHIP 0.022 C327 87-012-368-080 C-CAP,S 0.1-50 F C360 87-010-401-080 CAP, ELECT 1-50V C399 87-012-140-080 CAP 470P C401 87-010-544-080 CAP, ELECT 0.1-50V C402 87-010-544-080 CAP, ELECT 0.1-50V C403 87-010-321-080 CHIP CAPACITOR,82P(J) C404 87-010-321-080 CHIP CAPACITOR,82P(J) C405 87-010-197-080 CAP, CHIP 0.01 DM C406 87-010-197-080 CAP, CHIP 0.01 DM C407 87-010-197-080 CAP, CHIP 0.01 DM C408 87-010-197-080 CAP, CHIP 0.01 DM C409 87-010-182-080 C-CAP,S 2200P-50 B C410 87-010-182-080 C-CAP,S 2200P-50 B C411 87-010-405-080 CAP, ELECT 10-50V C412 87-010-405-080 CAP, ELECT 10-50V C452 87-010-382-080 CAP, ELECT 22-25V C453 87-010-183-080 C-CAP,S 2700P-50 B C454 87-010-183-080 C-CAP,S 2700P-50 B C455 87-010-183-080 C-CAP,S 2700P-50 B C456 87-010-197-080 CAP, CHIP 0.01 DM C458 87-010-178-080 CHIP CAP 1000P C459 87-010-175-080 CAP 560P C460 87-010-196-080 CHIP CAPACITOR,0.1-25 C461 87-012-158-080 C-CAP,S 390P-50 CH C462 87-012-158-080 C-CAP,S 390P-50 CH C507 87-010-196-080 CHIP CAPACITOR,0.1-25 C508 87-010-178-080 CHIP CAP 1000P C509 87-A10-300-080 CAP,M 0.027-50 J C510 87-A10-300-080 CAP,M 0.027-50 J C515 87-A10-300-080 CAP,M 0.027-50 J C516 87-A10-300-080 CAP,M 0.027-50 J C518 87-010-196-080 CHIP CAPACITOR,0.1-25 C519 87-010-546-080 CAP, ELECT 0.33-50V C520 87-010-546-080 CAP, ELECT 0.33-50V C521 87-010-546-080 CAP, ELECT 0.33-50V C522 87-010-546-080 CAP, ELECT 0.33-50V C523 87-010-545-080 CAP, ELECT 0.22-50V C524 87-010-545-080 CAP, ELECT 0.22-50V C525 8