Aiwa-NSXSZ21-cs-sm 电路图维修手册.pdf

上传人：cc518

文档编号：223363

上传时间：2025-10-10

格式：PDF

页数：37

大小：5.21MB

《Aiwa-NSXSZ21-cs-sm 电路图维修手册.pdf》由会员分享，可在线阅读，更多相关《Aiwa-NSXSZ21-cs-sm 电路图维修手册.pdf（37页珍藏版）》请在收音机爱好者资料库上搜索。

1、SERVICE MANUAL DATA COMPACT DISC STEREO SYSTEM BASIC TAPE MECHANISM : ZZM-3 PR1NM/YPR1NM BASIC CD MECHANISM : AZG-1 ZD8RDM/ YZD8RDM/YZD8RDCM NSX-SZ20 NSX-SZ21 NSX-SZ20E HA, HR LH HA S/M Code No. 09-005-423-4R3 REVISION This Service Manual is the “Revision Publishing” and replaces “Simple Manual” NSX

2、-SZ20, (S/M Code No. 09-99C-423-4T2) and NSX-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-SZ20 SPEAKERSYSTEM CD CASSEIVER

3、REMOTE CONTROLLER NSX-SZ21 CX-NSZ20SX-NSZ22 CX-SNSZ21SX-SNSZ22RC-ZAS02 NSX-SZ20ECX-NSZ20ESX-NSZ22 NSX-SZ20E ZZM-3 YPR1NM SYSTEMTAPE MECHANISMCD MECHANISM ZZM-3 PR1NMAZG-1 ZD8RDMNSX-SZ20 AZG-1 YZD8RDMNSX-SZ21 AZG-1 YZD8RDCM RadioFans.CN 收音机爱好者资料库 2 SPECIFICATIONS Tuning range87.5 MHz to 108 MHz Usab

4、le sensitivity (IHF)13.2 dBf Antenna terminals75 ohms (unbalanced) Tuning range531 kHz to 1602 kHz (9 kHz step) 530 kHz to 1710 kHz (10 kHz step) Usable sensitivity350 V/m AntennaLoop antenna Tuning range5.730 MHz to 17.900 MHz Usable sensitivity40 V (IEC) AntennaWire antenna Power outputHR: Rated:

5、24 W + 24 W (6 ohms, THD 1%, 1 kHz) Reference: 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) I

6、nputsVIDEO/AUX: 500 mV HR: MIC: 1.0 mV (10 K ohms) OutputsSPEAKERS: accept speakers of 6 ohms or more PHONES (stereo jack) : accepts headphones of 32 ohms or more Track format4 tracks, 2 channels stereo Frequency response50 Hz 15 kHz Recording systemAC bias HeadsDeck 1 : Playback head x 1 Deck 2 : R

7、ecording/Playback head x 1, erase head x 1 LaserSemiconductor laser ( =780 nm) D-A converter1 bit dual Signal-to-noise ratio85 dB (1 kHz, 0 dB) Harmonic distortion0.05 % (1 kHz, 0 dB) Speaker system3 way, bass reflex (magnetic shielded type) Speaker unitsWoofer: 140 mm cone type Tweeter: 60mm cone t

8、ype Super tweeter: 20 mm ceramic type Impedance6 ohms Output sound pressure level 87 dB/W/m Dimensions (W x H x D)230 x 324x 256 mm Weight3.8 kg Power requirements120 V/220-230 V/240 V AC (switchable), 50/60 Hz Power consumptionHR: 70 W LH, HA: 80 W Power consumptionWith power-economizing mode off :

9、 13 W With power-economizing mode on : 0.9 W Dimensions of main unit260 x 328 x 335 mm (W x H x D) Weight of main unitHR: 5.6 kg LH, 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 Soun

10、d,Inc. RadioFans.CN 收音机爱好者资料库 3 CLASS 1LASER PRODUCT KLASSE 1LASER PRODUKT LUOKAN 1LASER LAITE KLASS 1LASER APPARAT This set employs laser. Therefore, be sure to follow carefully the instructions below when servicing. WARNING! WHEN SERVICING, DO NOT APPROACH THE LASER EXIT WITH THE EYE TOO CLOSELY.

11、 IN CASE IT IS NECESSARY TO CONFIRM LASER BEAM EMISSION. BE SURE TO OBSERVE FROM A DISTANCE OF MORE THAN 30cm FROM THE SURFACE OF THE OBJEC- TIVE LENS ON THE OPTICAL PICK-UP BLOCK. sCaution: Invisible laser radiation when open and interlocks defeated avoid exposure to beam. sAdvarsel: Usynlig lasers

12、tling ved bning, nr sikkerhedsafbrydere er ude af funktion. Undg udsttelse for strling. VAROITUS! Laiteen Kyttminen muulla kuin tss kyttohjeessa mainitulla tavalla saataa altistaa kyt-tjn turvallisuusluokan 1 ylittvlle nkymttmlle lasersteilylle. VARNING! Om apparaten anvnds p annat stt n vad som spe

13、cificeras i denna bruksanvising, kan anvndaren utsttas fr osynling laserstrlning, som verskrider grnsen fr laserklass 1. PROTECTION OF EYES FROM LASER BEAM DURING SERVICING CAUTION Use of controls or adjustments or performance of proce- dures other than those specified herin may result in hazardous

14、radiation exposure. ATTENTION Lutillisation de commandes, rglages ou procdures autres que ceux spcifis peut entraner une dangereuse exposition aux radiations. ADVARSEL Usynlig laserstling ved bning, nr sikkerhedsafbrydereer ude af funktion. Undg udsttelse for strling. This Compact Disc player is cla

15、ssified as a CLASS 1 LASER product. The CLASS 1 LASER PRODUCT label is located on the rear exterior. Precaution to replace Optical block (KSM-880CAB) 1) After the connection, remove solder shown in the right figure. Body or clothes electrostatic potential could ruin laser diode in the optical block.

16、 Be sure ground body and workbench, and use care the clothes do not touch the diode. solder PICK-UP Assy P.C.B RadioFans.CN 收音机爱好者资料库 4 NOTE ON BEFORE STARTING REPAIR Charging voltage (V)Discharging Rated power (W)Parts number (C101, 102)resistor () 25-48100387-A00-247-090 49-140220587-A00-232-090

17、Note: The reference numbers (C101, C102) of the electrolytic capacitors can change depending on the models. Be sure to check the reference numbers of the charging capacitors on schematic diagram before starting the discharging work. 2. Check items before exchanging the MICROCOMPUTER Be sure to check

18、 the following items before exchanging the MICROCOMPUTER. Exchange the MICROCOMPUTER after confirming that the MICROCOMPUTER is surely defective. 2-1. Regarding the HOLD terminal of the MICROCOMPUTER When the HOLD terminal (INPUT) of the MICROCOMPUTER is “H”, the MICROCOMPUTER is judged to be operat

19、ing correctly. When this terminal is “L”, the main power cannot be turned on. Therefore, be sure to check the terminal voltage of the HOLD terminal before exchange. When the MICROCOMPUTER is not defective, the HOLD terminal can also go “L” when the POWER AMPLIFIER has any abnormalities that triggers

20、 the abnormality detection circuit on the MAIN C. B. that sets the HOLD terminal to “L”. Good or no good judgement of the MICROCOMPUTER 11111Turn 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 H

21、OLD terminal is “L” level, the abnormality detection circuit is judged to be working correctly and the MICROCOMPUTER is judged to be good. 1. Forced discharge of electrolytic capacitor of power supply block When repair is going to be attempted in the set that uses relay circuit in the power supply b

22、lock, electric potential is kept charged across the electrolytic capacitors (C101, 102) even though AC power cord is removed. If repair is attempted in this condition, secondary defect can occur. In order to prevent the secondary trouble, perform the following measures before starting repair work. D

23、ischarge procedure 11111Remove the AC power cord. 22222Connect a discharging resistor at an end of lead wire that has clips at both ends. Connect the other end of the lead wire to metal chassis. 33333Contact the other end of the discharging resistor to the positive (+) side (+VH) of C101. (For two s

24、econds) 44444Contact the same end of the discharging resistor as step 33333 to the negative (-) side (-VH) of C102 in the same way. (For two seconds) 55555Check that voltage across C101 and C102 has decreased to 1 V or less using a multimeter or an oscilloscope. Select a discharging resistor referri

25、ng to the following table.Fig-1 MAIN C.B D101 C101C102 22 34 5 In such a case, check also if the POWER AMPLIFIER circuit or power supply circuit has any abnormalities or not. 2-2. Regarding reset There are cases that the machine does not work correctly because the MICROCOMPUTER is not reset even tho

26、ugh the AC power cord 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 to exchange the MICROCOMPUTER. In such a case, perform the forced-reset by

27、 the following procedure and check good or no good 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 norma

28、l operation, the MICROCOMPUTER is good. Note: The reference number or MICROCOMPUTER pin number of transistor (Q110) and electrolytic capacitor (C113) can change depending on the models. Be sure to check the reference numbers on schematic diagram before starting the discharging work. 2-3. Confirmatio

29、n of soldering state of MICROCOMPUTER Check the soldering state of the MICROCOMPUTER in addition to the above described procedures. Be sure to exchange the MICROCOMPUTER after surely confirming that the trouble is not caused by poor soldering but the MICROCOMPUTER itself. Fig-2-2 MICRO- COMPUTER MIC

30、ROCOMPUTER FRONT C.B FRONT C.B VSS VDD C113 * % C113 18 15 Short with tweezers. 6 ELECTRICAL MAIN PARTS LIST DESCRIPTIONREF. NO.KANRI NO. PART NO.DESCRIPTIONREF. NO.KANRI NO. PART NO. 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,

31、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-A21-269-010 IC,EW732 TRANSISTOR 87-026-609-080 TR,KTA1266GR 89-213-702-010 TR,2SB1370E(1.8W) 87-026-610-080 TR,KTC3198GR 87-A3

32、0-076-080 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-A30-073-080 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-A30-091-08

33、0 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 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,2

34、SK360E 87-A30-234-080 TR,CSC4115BC DIODE 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 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

35、 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,HZS6A2L MAIN 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

36、 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 CAP,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

37、,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 87-010-247-080 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-

38、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 87-010-403-080 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-

39、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 C106 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

40、 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 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 8

41、7-012-368-080 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 C132 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

42、 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 C3

43、09 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 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 C

44、327 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 D

45、M 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 7 DESCRIPTIONREF. NO.KANRI NO. PART NO.DESCRIPTIONREF. NO.KANRI NO. PART NO. C411 87-010-405-080 CAP, ELEC

46、T 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 C460 87-010-196-080 CHIP CAPACITOR,0.1-25 C461 87-012-158-08

47、0 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 0.015-50 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 CAP, ELECT 470-10V C618 87-010-405-080 CAP, ELE