Aiwa-NSXSZ21-cs-sm维修电路原理图.pdf

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1、SERVICE MANUALDATACOMPACT DISCSTEREO SYSTEMBASIC TAPE MECHANISM : ZZM-3 PR1NM/YPR1NMBASIC CD MECHANISM : AZG-1 ZD8RDM/ YZD8RDM/YZD8RDCMNSX-SZ20NSX-SZ21NSX-SZ20EHA, HRLHHAS/M Code No. 09-005-423-4R3REVISION This Service Manual is the “Revision Publishing” and replaces “Simple Manual” NSX-SZ20, (S/M C

2、ode No. 09-99C-423-4T2) andNSX-SZ20/SZ20E, (S/M Code No. 09-001-423-4T3). If requiring information about the CD mechanism, see Service Manual of AZG-1 ZD8RDM / YZD8RDM, (S/M Code No. 09-001-335-3N6) and AZG-1 YZD8RDCM, (S/M Code No. 09-001-335-3NA).NSX-SZ20SPEAKERSYSTEMCDCASSEIVERREMOTECONTROLLERNSX

3、-SZ21CX-NSZ20SX-NSZ22CX-SNSZ21SX-SNSZ22RC-ZAS02NSX-SZ20ECX-NSZ20ESX-NSZ22NSX-SZ20EZZM-3 YPR1NMSYSTEMTAPE MECHANISMCD MECHANISMZZM-3 PR1NMAZG-1 ZD8RDMNSX-SZ20AZG-1 YZD8RDMNSX-SZ21AZG-1 YZD8RDCMRadioFans.CN 收音机爱 好者资料库 2 SPECIFICATIONSTuning range87.5 MHz to 108 MHzUsable sensitivity (IHF)13.2 dBfAnten

4、na terminals75 ohms (unbalanced)Tuning range531 kHz to 1602 kHz (9 kHz step)530 kHz to 1710 kHz (10 kHz step)Usable sensitivity350 V/mAntennaLoop antenna Tuning range5.730 MHz to 17.900 MHzUsable sensitivity40 V (IEC)AntennaWire antennaPower outputHR:Rated: 24 W + 24 W (6 ohms, THD 1%,1 kHz)Referenc

5、e: 30 W + 30 W (6 ohms,THD 10%, 1 kHz)LH, HA:Rated: 40 W + 40 W (6 ohms, THD 1%,1 kHz)Reference: 50 W + 50 W (6 ohms,THD 10%, 1 kHz)Total harmonic distortion HR: 0.08% (15 W, 1 kHz, 6 ohms,DIN AUDIO)LH, HA: 0.05% (25 W, 1 kHz, 6 ohms,DIN AUDIO)InputsVIDEO/AUX: 500 mVHR: MIC: 1.0 mV (10 K ohms)Output

6、sSPEAKERS: accept speakers of6 ohms or morePHONES (stereo jack) : acceptsheadphones of 32 ohms or moreTrack format4 tracks, 2 channels stereoFrequency response50 Hz 15 kHzRecording systemAC biasHeadsDeck 1 : Playback head x 1Deck 2 : Recording/Playback head x 1, erase head x 1LaserSemiconductor lase

7、r ( =780 nm)D-A converter1 bit dualSignal-to-noise ratio85 dB (1 kHz, 0 dB)Harmonic distortion0.05 % (1 kHz, 0 dB)Speaker system3 way, bass reflex (magneticshielded type)Speaker unitsWoofer:140 mm cone typeTweeter:60mm cone typeSuper tweeter:20 mm ceramic typeImpedance6 ohmsOutput sound pressure lev

8、el 87 dB/W/mDimensions (W x H x D)230 x 324x 256 mmWeight3.8 kgPower requirements120 V/220-230 V/240 V AC(switchable), 50/60 HzPower consumptionHR: 70 WLH, HA: 80 WPower consumptionWith power-economizingmode off : 13 WWith power-economizingmode on : 0.9 WDimensions of main unit260 x 328 x 335 mm(W x

9、 H x D)Weight of main unitHR: 5.6 kgLH, HA: 6.3 kg 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.RadioFans.CN 收音机爱 好者资料库 3 CLASS 1LASER PRODUCTKLASSE 1LASER PRODUKTLUOKAN 1LASER LAITEK

10、LASS 1LASER APPARATThis set employs laser. Therefore, be sure 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

11、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.sAdvarsel: Usynlig laserstling ved bning,nr sikkerhedsafbrydere er ude af funktion.Undg udsttelse for strling.VAROITUS!Laiteen Kyttmine

12、n muulla kuin tss kyttohjeessamainitulla tavalla saataa altistaa 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.PR

13、OTECTION OF EYES FROM LASER BEAM DURING SERVICINGCAUTIONUse of controls or adjustments or performance of proce-dures other than those specified herin may result inhazardous radiation exposure.ATTENTIONLutillisation de commandes, rglages ou procduresautres que ceux spcifis peut entraner une dangereus

14、eexposition aux radiations.ADVARSELUsynlig laserstling ved 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.Precaution to replace Optical block(KS

15、M-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 BEFO

16、RE 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 c

17、harging 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. Regardin

18、g 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 exchang

19、e.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

20、.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 electrol

21、ytic 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, seco

22、ndary 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

23、 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

24、 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

25、 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 wron

26、g 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

27、 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 mod

28、els. 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 c

29、onfirming 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 N

30、O.IC 87-A21-396-010 IC,STK490-040 87-A21-398-010 IC,STK490-110 87-A21-419-040 C-IC,NJM14558MD-TE2 87-A21-401-040 C-IC,M61503FP 87-A21-415-010 IC,LA1843 8A-NF9-601-110 C-IC,UPD780226GF-014-3BA 8A-NF9-601-010 C-IC,UPD780226GF-012-3BA 87-A21-482-010 IC,RPM6938-H4 87-070-127-110 IC,LC72131 D 87-A21-269-

31、010 IC,EW732TRANSISTOR 87-026-609-080 TR,KTA1266GR 89-213-702-010 TR,2SB1370E(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-A30-074-080 C-TR,RT1P 141C 87-A30-468-080 C-TR,KRC102S-RTK 87-A30-073-08

32、0 C-TR,RT1N 141C 87-A30-107-070 C-TR,CMBT5401 87-A30-106-040 C-TR,CMBT5551 87-A30-087-080 C-FET,2SK2158 87-A30-091-080 FET,2SJ460 87-A30-090-080 FET,2SK2541 87-A30-062-080 C-TR,KRC104S 87-A30-104-080 C-TR,RT1N 441C 87-A30-318-080 TR,CSA952K 89-333-317-880 TR,2SC3331 (0.5W) 87-A30-329-080 TR,CD1585BC

33、 89-327-143-080 TR,2SC2714(O)(0.1W) 87-A30-072-080 C-TR,RT1P 144C 87-A30-086-040 C-TR,CSD1306E 89-503-602-080 C-FET,2SK360E 87-A30-234-080 TR,CSC4115BCDIODE 87-020-465-080 DIODE,1SS133 87-A40-535-080 DIODE,1N5393-GOODARK 87-A40-455-090 DIODE,RL203 GW 87-A40-553-080 DIODE,1N4003 LES 87-A40-776-080 ZE

34、NER,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-A40-854-080 ZENER,UZ15BSA 87-A40-752-080 ZENER,UZ6.2BSC 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 87-0

35、12-368-080 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 C19 87-A10-627-000 CAP,E 2200-50 M SMG C19 87-A12-036-000 C

36、AP,E 2200-63 SMG C20 87-A10-627-000 CAP,E 2200-50 M SMG C20 87-A12-036-000 CAP,E 2200-63 SMG C21 87-016-495-000 CAP,E 3300-25 M SMG C21 87-A10-520-000 CAP,E 3300-35 M SMG C22 87-016-495-000 CAP,E 3300-25 M SMG C22 87-A10-520-000 CAP,E 3300-35 M SMG C25 87-010-385-080 CAP, ELECT 220-25V C26 87-010-24

37、7-080 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 C34 87-010-247-080 CAP, ELECT 100-50V C35 87-010-380-080 CAP, ELECT 47-16V C36 87-010-381-080 CAP, ELECT 330-16V C38 87-010-197-080 CAP, CHIP 0.01 DM C60 87-010-40

38、3-080 CAP, ELECT 3.3-50V C61 87-010-260-080 CAP, ELECT 47-25V C97 87-010-196-080 CHIP CAPACITOR,0.1-25 C101 87-010-185-080 C-CAP,S 3900P-50 B C102 87-010-185-080 C-CAP,S 3900P-50 B C103 87-010-545-080 CAP, ELECT 0.22-50V C104 87-010-545-080 CAP, ELECT 0.22-50V C105 87-010-187-080 CAP CHIP S5600P C10

39、6 87-010-187-080 CAP CHIP S5600P C107 87-010-404-080 CAP, ELECT 4.7-50V C108 87-010-404-080 CAP, ELECT 4.7-50V C111 87-010-391-080 CAP,E 10-35 SME C112 87-010-391-080 CAP,E 10-35 SME C113 87-010-405-080 CAP, ELECT 10-50V C114 87-010-405-080 CAP, ELECT 10-50V C119 87-010-197-080 CAP, CHIP 0.01 DM C12

40、0 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 C129 87-010-191-080 C-CAP,S 0.015-50 F C130 87-010-191-080 C-CAP,S 0.015-50 F C131 87-010-197-080 CAP, CHIP 0.01 DM C

41、132 87-010-197-080 CAP, CHIP 0.01 DM 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 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

42、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 100-10V C3

43、17 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

44、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 22

45、00P-50 BRadioFans.CN 收音机爱 好者资料库 7 DESCRIPTIONREF. NO.KANRINO.PART NO.DESCRIPTIONREF. NO.KANRINO.PART NO. 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 C45

46、5 87-010-183-080 C-CAP,S 2700P-50 B C456 87-010-197-080 CAP, CHIP 0.01 DM 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 C605 87-010-179-080 CAP,CHIP S B1200P C606 87-010-179-080 CAP,CHIP S B1200P C609 87-010-213-080 C-CAP,S 0.

47、015-50 B C610 87-010-213-080 C-CAP,S 0.015-50 B C611 87-010-545-080 CAP, ELECT 0.22-50V C612 87-010-545-080 CAP, ELECT 0.22-50V C613 87-010-545-080 CAP, ELECT 0.22-50V C614 87-010-545-080 CAP, ELECT 0.22-50V C615 87-010-154-080 CAP CHIP 10P C616 87-010-221-080 CAP, ELECT 470-10V C617 87-010-221-080

48、CAP, ELECT 470-10V C618 87-010-405-080 CAP, ELECT 10-50V C630 87-016-669-080 C-CAP,S 0.1-25 K B C631 87-010-185-080 C-CAP,S 3900P-50 B C632 87-010-185-080 C-CAP,S 3900P-50 B C633 87-016-369-080 C-CAP,S 0.033-25 B K C634 87-016-369-080 C-CAP,S 0.033-25 B K C669 87-010-322-080 C-CAP,S 100P-50 CH C670

49、87-010-322-080 C-CAP,S 100P-50 CH C671 87-010-196-080 CHIP CAPACITOR,0.1-25 C672 87-010-196-080 CHIP CAPACITOR,0.1-25 C673 87-010-182-080 C-CAP,S 2200P-50 B C677 87-010-197-080 CAP, CHIP 0.01 DM C771 87-010-263-080 CAP, ELECT 100-10V C772 87-010-197-080 CAP, CHIP 0.01 DM C782 87-010-197-080 CAP, CHI

50、P 0.01 DM C783 87-010-197-080 CAP, CHIP 0.01 DM C784 87-010-197-080 CAP, CHIP 0.01 DM C785 87-010-197-080 CAP, CHIP 0.01 DM C786 87-010-197-080 CAP, CHIP 0.01 DM C788 87-010-149-080 C-CAP,S 5P-50 CH C789 87-A10-801-080 C-CAP,S 0.022-16 J B C789 87-A12-052-080 C-CAP,S 0.033-25 J B C790 87-A10-801-080