Aiwa-Z-L620-Service-Manual 电路图 维修手册.pdf

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1、SERVICE MANUAL DATA COMPACT DISC STEREO SYSTEM BASIC TAPE MECHANISM : ZZM-3 PR1NM BASIC CD MECHANISM : BZG-5 ZD3N1M Z-L620LH S/M Code No. 09-011-439-4R1 REVISION This Service Manual is the Revision Publishing and replaces Simple Manual Z-L620 (LH), (S/M Code No. 09-00B-439-4T1). If requiring informa

2、tion about the CD mechanism, see Service Manual of BZG-5, (S/M Code No. 09-00C-353-3N2). ZL620 SPEAKERSYSTEM CD CASSEIVER SXWZL620CXZL620 REMOTE CONTROLLER RCZAS02 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 terminals75 ohms (unba

3、lanced) Tuning range530 kHz to 1710 kHz (10 kHz step) 531 kHz to 1602 kHz (9 kHz step) Usable sensitivity350 V/m AntennaLoop antenna Power outputRated: 100 W + 100 W (6 ohms, T.H.D. 1 %, 1 kHz) Reference: 120 W + 120 W (6 ohms, T.H.D. 10 %, 1 kHz) Total harmonic distortion 0.1% (50 W, 1 kHz, 6 ohms,

4、 DIN AUDIO) InputsVIDEO/AUX/PHONO : 500 mV 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 12500 Hz Recording systemAC bias HeadsDeck 1 : Playback head x 1 Deck 2 : Recordin

5、g/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) Wow and flutterUnmeasurable Cabinet type3 way, built-in subwoofer SpeakersSubwoofer: 220 mm (83/4 in.) cone type Full range

6、: 140 mm (55/8 in.) cone type Super tweeter: 20 mm (13/16 in.) ceramic type Impedance6 ohms Output sound pressure level 89 dB/W/m Dimensions (W x H x D)275 x 495 x 297 mm (107/8 x 191/2 x 113/4 in.) Weight6.5 kg (14 lbs. 5 oz.) Power requirements120 V/220 - 230 V/240 V AC, switchable: 50/60 Hz Power

7、 consumption130 W Dimensions of main unit360 x 395.3 x 350.6 mm (W x H x D)(141/4 x 155/8 x 151/4 in.) Weight of main unit10 kg (22 lbs.) Design and specifications are subject to change without notice. RadioFans.CN 收音机爱 好者资料库 3 CLASS 1LASER PRODUCT KLASSE 1LASER PRODUKT LUOKAN 1LASER LAITE KLASS 1LA

8、SER 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 A DISTANCE OF MORE THAN

9、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 strling. VAROITUS! Laiteen

10、 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, som verskrider grnsen f

11、r 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 autres que ceux spcifis pe

12、ut 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 the rear exterior. Prec

13、aution 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. PICK-UP Assy PWB Solder Ra

14、dioFans.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 depending on the models. Be su

15、re 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 after confirming that the MI

16、CROCOMPUTER 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, be sure to check the ter

17、minal 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”. Good or no good judgemen

18、t 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 correctly and the MICROCOMPU

19、TER 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) even though AC power cord

20、 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 at an end of lead wire that

21、 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 negative (-) side (-VH) of C10

22、2 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 also if the POWER AMPLIFIER

23、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 + POWER key) is performed. Whe

24、n 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 the AC power cord. 22222Shor

25、t 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 number of transistor (Q11

26、0) 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 addition to the above des

27、cribed 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 ELECTRICAL MAIN PARTS LIST DESC

28、RIPTIONREF. NO.KANRI NO. PART NO.DESCRIPTIONREF. NO.KANRI NO. PART NO. IC 8B-MA5-651-010 C-IC,LC876572 87-A21-419-040 C-IC,NJM14558MD-TE2 87-A21-577-040 C-IC,M61506FP 87-A21-893-040 C-IC,NJM14558V-TE2 87-A21-831-010 IC,SPS-442-1-F1 87-A21-443-040 C-IC,M62495AFP 87-070-289-040 IC,BU2092F 87-A21-695-0

29、10 IC,LA1845L 87-070-127-010 IC,LC72131D 87-A21-269-010 IC,EW732 TRANSISTOR 87-A30-515-080 TR,2SA1979O/Y 87-A30-559-010 TR,CSB1370EF 87-A30-492-080 TR,2SC5343G 87-A30-076-080 C-TR,2SC3052F 87-A30-075-080 C-TR,2SA1235F 87-A30-107-070 C-TR,CMBT5401 87-A30-484-080 C-TR,KRA102S 87-026-610-080 TR,KTC3198

30、GR 87-A30-074-080 C-TR,RT1P 141C 87-026-609-080 TR,KTA1266GR 87-A30-190-080 TR,CC5551 87-A30-106-040 C-TR,CMBT5551 87-026-227-080 C-TR,DTA114EK 87-A30-087-080 C-FET,2SK2158 87-A30-098-010 TR,FP 1016 87-A30-097-010 TR,FN 1016 87-A30-162-010 FET,2SK2937 87-A30-091-080 FET,2SJ460 87-A30-090-080 FET,2SK

31、2541 87-A30-062-080 C-TR,KRC104S 87-A30-582-080 TR,CDA1585BC 87-A30-495-080 TR,2SA1981Y 87-A30-142-040 C-TR,DTA123EKA 87-A30-218-080 TR,2SB1237(Q) 89-327-143-080 TR,2SC2714O 87-A30-489-080 C-TR,KRA107S 89-503-602-080 C-FET,2SK360E 87-A30-521-080 C-TR,2SC5345S(O) 87-A30-234-080 TR,CSC4115BC DIODE 87-

32、017-447-010 DIODE,GBU4DL-6419 87-A40-553-080 DIODE,1N4003 LES 87-A40-780-080 ZENER,UZ33BSD 87-020-465-080 DIODE,1SS133 (110MA) 87-A40-764-080 ZENER,UZ10BSC 87-A40-270-080 C-DIODE,MC2838 87-A40-269-080 C-DIODE,MC2836 87-A40-234-080 ZENER,MTZJ5.6A 87-A40-646-010 DIODE,FMB-G16L 87-A40-202-080 ZENER,UZ5

33、.1BSB 87-A40-749-080 ZENER,UZ5.6BSB 87-A40-539-080 ZENER,MTZJ2.4A 87-A40-291-080 DIODE,1N4148 (CPT) 87-017-149-080 ZENER,HZS6A2L MAIN C.B C3 87-A12-317-080 C-CAP,U 0.1-50 Z F C4 87-A12-317-080 C-CAP,U 0.1-50 Z F C5 87-A12-317-080 C-CAP,U 0.1-50 Z F C6 87-A12-317-080 C-CAP,U 0.1-50 Z F C9 87-A12-317-

34、080 C-CAP,U 0.1-50 Z F C10 87-A12-317-080 C-CAP,U 0.1-50 Z F C11 87-A12-317-080 C-CAP,U 0.1-50 Z F C12 87-A12-317-080 C-CAP,U 0.1-50 Z 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-A10-520-000 CAP,E 3300-35 M SMG C22 87-A10-520-000 CAP,E 3300-35 M SMG C25 87-

35、010-247-080 CAP, ELECT 100-50V C26 87-010-247-080 CAP, ELECT 100-50V C27 87-010-247-080 CAP, ELECT 100-50V C28 87-010-247-080 CAP, ELECT 100-50V C30 87-010-430-080 CAP, ELECT 100-63 C31 87-A12-062-080 CAP,E 100-10 SMG C32 87-012-286-080 CAP, U 0.01-25 C33 87-A12-062-080 CAP,E 100-10 SMG C34 87-010-2

36、47-080 CAP, ELECT 100-50V C35 87-A12-066-080 CAP,E 47-16 SMG C36 87-010-381-080 CAP, ELECT 330-16V C38 87-012-286-080 CAP, U 0.01-25 C60 87-A12-089-080 CAP,E 3.3-50 SMG C61 87-A12-071-080 CAP,E 47-25 SMG C83 87-A12-074-080 CAP,E 470-25 SMG C97 87-010-759-080 C-CAP,U, 0.1-25F C99 87-010-759-080 C-CAP

37、,U, 0.1-25F C101 87-012-279-080 C-CAP,U 2700P-50 B C102 87-012-279-080 C-CAP,U 2700P-50 B C103 87-A12-090-080 CAP,E 4.7-50 SMG C104 87-A12-090-080 CAP,E 4.7-50 SMG C107 87-A12-091-080 CAP,E 10-50 SMG C108 87-A12-091-080 CAP,E 10-50 SMG C109 87-012-199-080 C-CAP,U 220P-50 J CH C110 87-012-199-080 C-C

38、AP,U 220P-50 J CH C111 87-010-392-080 CAP ELECT 33-35 SME C112 87-010-392-080 CAP ELECT 33-35 SME C113 87-A10-596-080 C-CAP,S 100P-100 J CH C114 87-A10-596-080 C-CAP,S 100P-100 J CH C115 87-012-167-080 C-CAP,U 5P-50 CH C116 87-012-167-080 C-CAP,U 5P-50 CH C117 87-A12-317-080 C-CAP,U 0.1-50 Z F C118

39、87-A12-317-080 C-CAP,U 0.1-50 Z F C119 87-A12-317-080 C-CAP,U 0.1-50 Z F C120 87-A12-317-080 C-CAP,U 0.1-50 Z F C121 87-A12-090-080 CAP,E 4.7-50 SMG C122 87-A12-090-080 CAP,E 4.7-50 SMG C123 87-010-986-080 C-CAP,S 820P-50 J CH C124 87-010-986-080 C-CAP,S 820P-50 J CH C133 87-012-282-080 CAP, U 4700P

40、-50 C140 87-012-278-080 C-CAP,U 2200P-50 B C186 87-010-759-080 C-CAP,U, 0.1-25F C187 87-A10-119-080 CAP,E 10-100 REA C188 87-A10-119-080 CAP,E 10-100 REA C191 87-A10-812-080 C-CAP,S 220P-200 J CH C192 87-A10-812-080 C-CAP,S 220P-200 J CH C225 87-A12-317-080 C-CAP,U 0.1-50 Z F C226 87-A12-317-080 C-C

41、AP,U 0.1-50 Z F C227 87-A12-317-080 C-CAP,U 0.1-50 Z F C228 87-A12-317-080 C-CAP,U 0.1-50 Z F C229 87-012-287-080 C-CAP,U 0.015-25 F C230 87-012-287-080 C-CAP,U 0.015-25 F C231 87-012-286-080 CAP, U 0.01-25 C232 87-012-286-080 CAP, U 0.01-25 C241 87-010-759-080 C-CAP,U, 0.1-25F C301 87-012-274-080 C

42、-CAP,U 1000P-50 K B C302 87-012-274-080 C-CAP,U 1000P-50 K B C303 87-012-275-080 C-CAP,U 1200P-50 K B C304 87-012-275-080 C-CAP,U 1200P-50 K B C307 87-A12-062-080 CAP,E 100-10 SMG C308 87-A12-062-080 CAP,E 100-10 SMG C309 87-012-195-080 C-CAP,U 100P-50CH C310 87-012-195-080 C-CAP,U 100P-50CH C313 87

43、-012-284-080 CAP, U 6800P-50 C314 87-012-284-080 CAP, U 6800P-50 7 DESCRIPTIONREF. NO.KANRI NO. PART NO.DESCRIPTIONREF. NO.KANRI NO. PART NO. C315 87-A12-062-080 CAP,E 100-10 SMG C317 87-A12-085-080 CAP,E 0.33-50 SMG C318 87-A12-085-080 CAP,E 0.33-50 SMG C326 87-016-118-080 C-CAP,U0.022-25JB C327 87

44、-A12-317-080 C-CAP,U 0.1-50 Z F C360 87-A12-087-080 CAP,E 1-50 SMG C365 87-010-759-080 C-CAP,U, 0.1-25F C399 87-012-270-080 CAP, U 470P-50 C401 87-A12-083-080 CAP,E 0.1-50 SMG C402 87-A12-083-080 CAP,E 0.1-50 SMG C403 87-012-193-080 C-CAP,U 82P-50 CH C404 87-012-193-080 C-CAP,U 82P-50 CH C405 87-012

45、-286-080 CAP, U 0.01-25 C406 87-012-286-080 CAP, U 0.01-25 C407 87-012-286-080 CAP, U 0.01-25 C408 87-012-286-080 CAP, U 0.01-25 C409 87-012-278-080 C-CAP,U 2200P-50 B C410 87-012-278-080 C-CAP,U 2200P-50 B C411 87-A12-091-080 CAP,E 10-50 SMG C412 87-A12-091-080 CAP,E 10-50 SMG C452 87-A12-092-080 C

46、AP,E 22-50 SMG C453 87-012-279-080 C-CAP,U 2700P-50 B C454 87-012-279-080 C-CAP,U 2700P-50 B C455 87-012-279-080 C-CAP,U 2700P-50 B C456 87-012-286-080 CAP, U 0.01-25 C457 87-A12-361-080 CAP,M 5600P-100 J CP C458 87-012-274-080 CHIP CAP,U 1000P-50B C459 87-012-271-080 CAP, U 560P-50 C460 87-010-759-

47、080 C-CAP,U, 0.1-25F C461 87-012-269-080 C-CAP,U 390P-50 B C462 87-012-269-080 C-CAP,U 390P-50 B C470 87-018-127-080 CAP, CER 470P-50V C605 87-012-275-080 C-CAP,U 1200P-50 B C606 87-012-275-080 C-CAP,U 1200P-50 B C609 87-012-287-080 C-CAP,U 0.015-25 F C610 87-012-287-080 C-CAP,U 0.015-25 F C611 87-A12-084-080 CAP,E 0.22-50 SMG C612 87-A12-084-080 CAP,E 0.22-50 SMG C613 87-A12-084-080 CAP,E 0.22-50 SMG C614 87-A12-084-080 CAP,E 0.22-50 SMG C615 87-012-17