Aiwa-Z-L900-Service-Manual 电路图 维修手册.pdf

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1、SERVICE MANUAL DATA COMPACT DISC STEREO CASSETTE RECEIVER BASIC TAPE MECHANISM : 2ZM-3MK2 PR5NM BASIC CD MECHANISM : 6ZG-1 ZRDM Z-L900LH S/M Code No. 09-004-424-5R1 REVISION ZL900 SPEAKERSYSTEM CD CASSEIVER SXWZL900CXZL900 REMOTE CONTROLLER RCZAS12 This Service Manual is the Revision Publishing and

2、replaces Simple Manual Z-L900 (LH), (S/M Code No. 09-001-424-5T1). If requiring information about the CD mechanism, see Service Manual of 6ZG-1 ZRDM, (S/M Code No. 09-001-338-7N2). RadioFans.CN 收音机爱 好者资料库 2 SPECIFICATIONS Tuning range87.5 MHz to 108 MHz Usable sensitivity (IHF)13.2 dBf Antenna termi

3、nals75 ohms (unbalanced) Tuning range530 kHz to 1710 kHz (10 kHz step) 531 kHz to 1602 kHz (9 kHz step) Usable sensitivity350 V/m AntennaLoop antenna Mid-high frequency amplifier Power outputRated: 55 W + 55 W (8 ohms, T.H.D. 1 %, 1 kHz) Reference: 70 W + 70 W (8 ohms, T.H.D. 10 %, 1 kHz) Total harm

4、onic distortion 0.15 % (15 W, 1 kHz, 8 ohms ) Low frequency amplifier Power outputRated: 170 W + 170 W (6 ohms, T.H.D. 1 %, 75 Hz) Reference : 210 W + 210 W (6 ohms, T.H.D. 10 %, 75 Hz) Total harmonic distortion0.15 % (45 W, 75 Hz, 6 ohms) InputsVIDEO/AUX: 310 mV (adjustable) PHONO: 400 mV (47 kohms

5、) MIC 1, MIC 2: 1.4 mV (20 kohms) OutputsCD DIGITAL OUT (OPTICAL) SPEAKERS HIGH FREQ: accept speakers of 8 ohms or more SPEAKERS LOW FREQ: accept speakers of 6 ohms or more SURROUND SPEAKERS: accept speakers of 8-16 ohms or more PHONES (stereo jack): accepts headphones of 32 ohms or more Track forma

6、t4 tracks, 2 channels stereo Frequency responseCrO2 tape: 50 Hz 16000 Hz Normal tape: 50 Hz 15000 Hz Signal-to-noise ratio50 dB (CrO2 tape peak level, above 400 Hz) Recording systemAC bias HeadsDeck 1 : Playback head x 1 Deck 2 : Recording/Playback head x 1, erase head x 1 LaserSemiconductor laser (

7、 =780 nm) D-A converter1 bit dual Signal-to-noise ratio85 dB (1 kHz, 0 dB) Harmonic distortion0.05 % (1 kHz, 0 dB) Wow and flutterUnmeasurable Cabinet type3 way, built-in subwoofer SpeakersSubwoofer: 220 mm cone type Full range: 120 mm cone type Super tweeter: 60 mm cone type Impedance6 ohms/8 ohms

8、Output sound pressure level 89 dB/W/m Dimensions (W x H x D)260 x 495x 355 mm Weight9.5 kg Power requirements120 V/220 - 230 V/240 V AC (switchable), 50/60 Hz Power consumption275 W Power consumption inWith power-economizing mode off: 45 W With power-economizing mode on: 0.9 W Dimensions of main uni

9、t360 x 395.3 x 402.3 mm (W x H x D) Weight of main unit13.2 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 PRODUCT KLASSE 1LASER PRODUKT LUOKA

10、N 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. IN CASE IT IS NECESSARY TO CONFIRM LASER BEAM EMISSION. BE SURE TO OBSERVE FROM

11、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 laserstling ved bning, nr sikkerhedsafbrydere er ude af funktion. Undg udsttelse for st

12、rling. 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 specificeras i denna bruksanvising, kan anvndaren utsttas fr osynling laserstrlning,

13、 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 radiation exposure. ATTENTION Lutillisation de commandes, rglages ou procdures au

14、tres 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 classified as a CLASS 1 LASER product. The CLASS 1 LASER PRODUCT label is located on

15、 the rear exterior. Precaution to replace Optical block (KSS-213F) Body or clothes electrostatic potential could ruin laser diode in the optical block. Be sure ground body and workbench, and use care the clothes do not touch the diode. 1) After the connection, remove solder shown in right figure. PI

16、CK-UP Assy P.C.B Solder 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 Note: The reference numbers (C101, C102) of the electrolytic capacitors can change depe

17、nding 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 the following items before exchanging the MICROCOMPUTER. Exchange the MICROCOMPUTER af

18、ter 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 operating correctly. When this terminal is “L”, the main power cannot be turned on. Therefore

19、, 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 the abnormality detection circuit on the MAIN C. B. that sets the HOLD terminal to “L”

20、. 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 HOLD terminal is “L” level, the abnormality detection circuit is judged to be working co

21、rrectly 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 block, electric potential is kept charged across the electrolytic capacitors (C101, 102)

22、 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. Discharge procedure 11111Remove the AC power cord. 22222Connect a discharging resistor a

23、t 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 seconds) 44444Contact the same end of the discharging resistor as step 33333 to the nega

24、tive (-) 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 referring to the following table.Fig-1 MAIN C.B D101 C101C102 22 34 5 In such a case, check al

25、so 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 though the AC power cord is re-inserted, or the software reset (pressing the STOP key + PO

26、WER 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 the following procedure and check good or no good of the MICROCOMPUTER. 11111Remove th

27、e 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 is good. Note: The reference number or MICROCOMPUTER pin

28、 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. Confirmation of soldering state of MICROCOMPUTER Check the soldering state of the MICROCOMPUTER in

29、 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 MICROCOMPUTER FRONT C.B FRONT C.B VSS VDD C113 * % C113 18 15 Short with tweezers. 6 ELECT

30、RICAL MAIN PARTS LIST DESCRIPTIONREF. NO.KANRI NO. PART NO.DESCRIPTIONREF. NO.KANRI NO. PART NO. IC 8A-MA3-656-010 C-IC,LC876580W-5P55 87-A21-021-040 C-IC,BU2099FV 87-A20-783-040 C-IC,BA7762AFS 87-A21-398-010 IC,STK490-110 87-A21-577-040 C-IC,M61506FP 87-A21-482-010 IC,RPM6938-H4 87-A21-018-040 C-IC

31、,M65849BFP631D 87-A21-452-010 C-IC,BD3876KS2 87-070-289-040 IC,BU 2092F 87-A21-415-010 IC,LA1843 87-A21-051-040 C-IC,BU9990-03FS 87-070-127-110 IC,LC72131 D 87-020-454-010 IC,DN6851 TRANSISTOR 87-026-609-080 TR,KTA1266GR 87-026-610-080 TR,KTC3198GR 87-A30-076-080 C-TR,2SC3052F 87-A30-075-080 C-TR,2S

32、A1235F 87-A30-318-080 TR,CSA952K 89-213-702-010 TR,2SB1370E 87-A30-218-080 TR,2SB1237Q 87-A30-257-080 C-TR,2SD1306E 87-A30-107-070 C-TR,CMBT5401 87-026-245-080 TR,DTC114ES 87-A30-198-080 TR,KTC3199GR 87-A30-484-080 C-TR,KRA 102S 87-A30-269-040 C-FET,2SJ461-T1 87-A30-190-080 TR,CC5551 87-A30-087-080

33、C-FET,2SK2158 87-A30-468-080 C-TR,KRC 102S-RTK 87-A30-106-040 C-TR,CMBT5551 87-A30-204-010 TR,2SD2439 87-A30-205-010 TR,2SB1588 87-A30-107-080 C-TR,CMBT5401 87-A30-329-080 TR,CD1585BC 87-A30-063-080 C-TR,KRA 104S 87-A30-074-080 C-TR,RT1P 141C 87-A30-186-010 FET,2SK3053 89-327-143-080 TR,2SC2714O(0.1

34、W) 87-A30-489-080 C-TR,KRA107S 87-A30-234-080 TR,CSC4115BC 87-026-463-080 TR,2SA933SRS DIODE 87-020-465-080 DIODE,1SS133 (110MA) 87-A40-673-090 DIODE,D10XB20 87-A40-553-080 DIODE,1N4003 LES 87-A40-780-080 ZENER,UZ33BSD 87-A40-224-010 DIODE,GBU8DL 87-A40-764-080 ZENER,UZ10BSC 87-A40-313-080 C-DIODE,M

35、C 2840 87-A40-270-080 C-DIODE,MC2838 87-A40-269-080 C-DIODE,MC2836 87-A40-768-080 ZENER,UZ 16BSA 87-017-447-010 DIODE,GBU4DL-6419 87-017-154-080 ZENER,HZS6C3L 87-020-331-080 CHIP-DIODE,DAN202K 87-017-654-060 DIODE,GBU6J-6131 87-A40-488-080 DIODE,1SS244 87-A40-751-080 ZENER,UZ6.2BSB 87-A40-747-080 ZE

36、NER,UZ5.1BSB 87-A40-646-010 DIODE,FMB-G16L 87-A40-224-010 DIODE,GBU8DL 87-A40-745-080 ZENER,UZ4.7BSA 87-A40-749-080 ZENER,UZ5.6BSB MAIN C.B C3 87-A10-712-080 C-CAP,S 0.22-50 F C4 87-A10-712-080 C-CAP,S 0.22-50 F C21 87-A10-520-000 CAP, E 3300-35 C22 87-A10-520-000 CAP, E 3300-35 C25 87-016-300-080 C

37、AP, ELECT 22-100 C26 87-010-407-080 CAP, ELECT 33-50 C27 87-016-300-080 CAP, ELECT 22-100 C28 87-010-407-080 CAP, ELECT 33-50 C31 87-010-263-080 CAP, ELECT 100-10V C32 87-010-197-080 CAP, CHIP 0.01-25 C34 87-010-247-080 CAP, ELECT 100-50V C35 87-010-380-080 CAP, ELECT 47-16V C36 87-010-381-080 CAP,

38、ELECT 330-16V C38 87-010-385-080 CAP, ELECT 220-25V C39 87-010-385-080 CAP, ELECT 220-25V C40 87-010-197-080 CAP, CHIP 0.01-25 C60 87-010-403-080 CAP, ELECT 3.3-50V C61 87-010-260-080 CAP, ELECT 47-25V C80 87-010-401-080 CAP, ELECT 1-50V C81 87-010-374-080 CAP, ELECT 47-10V C82 87-010-380-080 CAP, E

39、LECT 47-16V C104 87-010-196-080 CHIP CAPACITOR,0.1-25 C105 87-010-196-080 CHIP CAPACITOR,0.1-25 C111 87-010-401-080 CAP, ELECT 1-50 M C112 87-010-401-080 CAP, ELECT 1-50 M C113 87-010-545-080 CAP, ELECT 0.22-50V C114 87-010-545-080 CAP, ELECT 0.22-50V C115 87-010-546-080 CAP, ELECT 0.33-50V C116 87-

40、010-546-080 CAP, ELECT 0.33-50V C117 87-010-196-080 CHIP CAPACITOR,0.1-25 C121 87-010-404-080 CAP, ELECT 4.7-50V C122 87-010-404-080 CAP, ELECT 4.7-50V C160 87-010-196-080 C-CAP,S 0.1-25 ZF C171 87-012-368-080 C-CAP,S 0.1-50 F C172 87-012-368-080 C-CAP,S 0.1-50 F C173 87-012-368-080 C-CAP,S 0.1-50 F

41、 C174 87-012-368-080 C-CAP,S 0.1-50 F C301 87-010-318-080 C-CAP,S 47P-50 CH C302 87-010-318-080 C-CAP,S 47P-50 CH C303 87-012-157-080 C-CAP,S 330P-50 CH C304 87-012-157-080 C-CAP,S 330P-50 CH C305 87-012-157-080 C-CAP,S 330P-50 CH C306 87-012-157-080 C-CAP,S 330P-50 CH C307 87-010-196-080 CHIP CAPAC

42、ITOR,0.1-25 C309 87-010-196-080 CHIP CAPACITOR,0.1-25 C310 87-010-196-080 CHIP CAPACITOR,0.1-25 C311 87-010-198-080 CAP, CHIP 0.022-25 C312 87-010-198-080 CAP, CHIP 0.022-25 C313 87-010-178-080 CHIP CAP 1000P-50 C314 87-010-178-080 CHIP CAP 1000P-50 C315 87-010-178-080 CHIP CAP 1000P-50 C316 87-010-

43、178-080 CHIP CAP 1000P-50 C321 87-012-142-080 CAP, S 0.33-16 C322 87-012-142-080 CAP, S 0.33-16 C324 87-010-260-080 CAP, ELECT 47-25V C325 87-010-370-080 CAP,E 330-6.3 SME C327 87-010-404-080 CAP, ELECT 4.7-50V C328 87-010-404-080 CAP, ELECT 4.7-50V C332 87-010-196-080 CHIP CAPACITOR,0.1-25 C335 87-

44、010-401-080 CAP, ELECT 1-50V C336 87-010-401-080 CAP, ELECT 1-50V C337 87-010-196-080 CHIP CAPACITOR,0.1-25 C339 87-010-196-080 CHIP CAPACITOR,0.1-25 C340 87-010-196-080 CHIP CAPACITOR,0.1-25 C351 87-012-140-080 CAP 470P-50 C352 87-012-140-080 CAP 470P-50 C354 87-010-175-080 CAP 560P-50 C355 87-010-

45、178-080 C-CAP,S 1000P-50 KB 7 DESCRIPTIONREF. NO.KANRI NO. PART NO.DESCRIPTIONREF. NO.KANRI NO. PART NO. C356 87-010-260-080 CAP, ELECT 47-25V C357 87-010-197-080 CAP, CHIP 0.01-25 KB C358 87-010-183-080 C-CAP,S 2700P-50 B C359 87-010-183-080 C-CAP,S 2700P-50 B C360 87-010-183-080 C-CAP,S 2700P-50 B

46、 C370 87-010-196-080 CHIP CAPACITOR,0.1-25 C373 87-A11-177-080 C-CAP,S 0.15-16 K B C374 87-A11-177-080 C-CAP,S 0.15-16 K B C378 87-010-196-080 CHIP CAPACITOR,0.1-25 ZF C379 87-010-406-080 CAP, ELECT 22-50 C380 87-010-406-080 CAP, ELECT 22-50 C386 87-010-196-080 CHIP CAPACITOR,0.1-25 ZF C388 87-012-1

47、56-080 C-CAP,S 220P-50 J CH C391 87-010-319-080 C-CAP,S 56P-50 J CH C392 87-010-319-080 C-CAP,S 56P-50 J CH C393 87-010-319-080 C-CAP,S 56P-50 J CH C394 87-010-319-080 C-CAP,S 56P-50 J CH C501 87-010-263-080 CAP, ELECT 100-10V C502 87-010-196-080 CHIP CAPACITOR,0.1-25 C503 87-016-460-080 C-CAP,S 0.22-16 K B C504 87-016-460-080 C-CAP,S 0.22-16 K B C505 87-016-460-080 C-CAP,S 0.22-16 K B C506 87-010-184-080 CHIP CAPACITOR 3300P-50 C507 87-010-177-080 C-CAP,S 820P-50 SL C508 87-016