Aiwa-NSX-T77-Service-Manual 电路图 维修手册.pdf

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1、SERVICE MANUAL DATA COMPACT DISC STEREO CASSETTE RECEIVER NSX-T77LH S/M Code No. 09-003-425-2R1 REVISION BASIC TAPE MECHANISM: 2ZM-3MK2 PR4NM BASIC CD MECHANISM: 6ZG-1 ZRNDM CDCASSEIVER CXNT77 SPEAKER SXWNT98 REMOTE CONTROLLER RCZAS04 SYSTEM NSXT77 This Service Manual is the “Revision Publishing” an

2、d replaces “Simple Manual” NSX-T77 (S/M Code No. 09-99C-425-2T1). If requiring information about the CD mechanisim, see Service Manual of 6ZG-1 (S/M Code No. 09-001-338-7N2). RadioFans.CN 收音机爱 好者资料库 SPECIFICATIONS ACCESSORIES / PACKAGE LIST KANRI NO. REF. NO.DESCRIPTIONPART NO. Tuning range87.5 MHz

3、to 108 MHz Usable 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 uV/m AntennaLoop antenna Mid-high frequency amplifier Power output*Rated: 56 W + 56 W (8 ohms, THD 1 %,1 kHz) Referenc

4、e: 70 W + 70 W (8 ohms, THD 10 %,1 kHz) Total harmonic distortion 0.3 % (28 W, 1 kHz, 8 ohms, DIN AUDIO) Low frequency amplifier Power output*Rated: 167 W + 167 W (6 ohms, THD 1 %,75 Hz) Reference: 210 W + 210 W (6 ohms, THD 10 %,75 Hz) Total harmonic distortion 0.3 % (84 W,75 Hz,6 ohms, DIN AUDIO)

5、* without connecting to surround speakers InputsVIDEO/AUX : 300 mV (adjustable) MD : 300 mV (adjustable) MIC1,MIC2 : 1.0 mV (10 kohms) LINE OUT : 150 mV OutputsSPEAKERS HIGH FREQ : accept speakers of 8 ohms or more SPEAKERS LOW FREQ : accept speakers of 6 ohms or more SURROUND SPEAKERS : accept spea

6、kers of 8 to 16 ohms PHONES (stereo jack) : accepts headphones of 32 ohms or more Track format4 tracks, 2 channels stereo Frequency responseCrO2 tape: 50 Hz 16000 Hz Normal tape: 50 Hz 15000 Hz Signal to noise ratio60dB (Dolby B NR ON, CrO2 tape peak level) Recording systemAC bias HeadsDeck 1: Playb

7、ack head x 1 Deck 2: Recording/Playback head x 1, erase head x 1 LaserSemiconductor laser ( =780 nm) D-A converter1 bit dual Signal-to-noise ratio83 dB (1 kHz, 0 dB) Harmonic distortion0.05 % (1 kHz, 0 dB) Wow and flutterUnmeasurable Cabinet type4 way, built-in subwoofer SpeakersSubwoofer : 200 mm (

8、 77/8 in.) cone type Mid range: 100 mm ( 315/16 in.) cone type Tweeter : 60 mm ( 23/8 in.) cone type Super Tweeter : 20 mm (13/16 in.) ceramic type Impedance6 ohms / 8 ohms Output sound pressure level 87 dB/W/m Dimensions (W x H x D)260 x 463 x 314 mm (101/4 x 181/4 x 123/8 in.) Weight8.0 kg (17 lbs

9、. 10 oz) Power requirements120 V/220-230 V/240 V (switchable ) 50/60Hz Power consumption 275W Dimensions of main unit300 x 382.6 x 396.4mm (117/8 x 151/8 x 15 5/8in.) Weight of main unit13.7 kg (30 lbs. 3 oz) Standby power consumption If the power-economizing mode is OFF: 36 W If the power-economizi

10、ng mode is ON: 0.9 W Design and specifications are subject to change without notice. Dolby noise reduction manufactured under license from Dolby Laboratories Licensing Corporation. DOLBY and the double-D symbol are trademarks of Dolby Laboratories Licensing Corporation. The word BBEand the BBE symbo

11、l are trademarks of BBE Sound, Inc. Under license from BBE Sound,Inc. 1 8A-NF4-902-010 IB,LH (ESP) M 2 87-006-225-010 AM LOOP ANT NC2 3 87-043-115-010 ANT,FEEDER FM 4 87-A91-017-010 PLUG,CONVERSION JT-0476 5 8Z-NF5-702-010 RC UNIT,RC-ZAS04 - 2 - ! RadioFans.CN 收音机爱 好者资料库 - 3 - CLASS 1LASER PRODUCT K

12、LASSE 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. IN CASE IT IS NECESSARY TO CONFIRM LASER BEAM EMISSION

13、. 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 laserstling ved bning, nr sikkerhedsafbrydere er ude af funkt

14、ion. 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 specificeras i denna bruksanvising, kan anvndaren utsttas

15、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 radiation exposure. ATTENTION Lutillisation de commande

16、s, 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 classified as a CLASS 1 LASER product. The CLASS 1 LASER P

17、RODUCT label is located on 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

18、 shown in right figure. PICK-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 electroly

19、tic 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 the following items before exchanging the MICROCOMPUTER.

20、 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 operating correctly. When this terminal is “L”, the main power

21、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 the abnormality detection circuit on the MAIN C. B. that

22、 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 HOLD terminal is “L” level, the abnormality detection circ

23、uit 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 block, electric potential is kept charged across the elect

24、rolytic 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. Discharge procedure 11111Remove the AC power cord. 22222Co

25、nnect 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 seconds) 44444Contact the same end of the discharging resi

26、stor 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 referring to the following table.Fig-1 MAIN C.B D101 C101C102 22

27、 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 though the AC power cord is re-inserted, or the software

28、 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 the following procedure and check good or no good of

29、 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 is good. Note: The ref

30、erence 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. Confirmation of soldering state of MICROCOMPUTER Check the solde

31、ring 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 MICROCOMPUTER FRONT C.B FRONT C.B VSS VDD C113 * % C113

32、18 15 Short with tweezers. KANRI NO. REF. NO.DESCRIPTIONPART NO.KANRI NO. REF. NO.DESCRIPTIONPART NO. - 6 - ELETRICAL MAIN PARTS LIST IC 8A-NF3-635-010 C-IC,LC876596W-5P43 87-A21-482-010 IC,RPM6938-H4 87-A20-869-040 C-IC,M62449FP 87-A21-398-010 IC,STK490-010 87-A20-355-010 IC,CXA1553P 87-A20-783-040

33、 C-IC,BA7762AFS 87-A21-577-040 C-IC,M61506FP 87-070-289-040 IC,BU 2092F 87-A21-021-040 C-IC,BU2099FV 87-A21-018-040 C-IC,M65849BFP631D 87-A21-452-040 C-IC,BD3876KS2 87-A21-051-040 C-IC,BU9990-03FS 87-A21-415-010 IC,LA1843 87-070-127-110 IC,LC72131D TRANSISTOR 87-A30-217-010 TR,2SB1436(R) 87-026-245-

34、080 TR,DTC114ES 87-A30-198-080 TR,KTC3199GR 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-A30-318-080 TR,CSA952K 87-A30-218-080 TR,2SB1237(Q) 87-A30-087-080 C-FET,2SK2158 87-A30-269-040 C-FET,2SJ461-T1 87-A30-073-080 C-TR,RT

35、1N 141C 87-A30-074-080 C-TR,RT1P 141C 87-A30-190-080 TR,CC5551 87-A30-097-010 TR,FN 1016 87-A30-098-010 TR,FP 1016 87-A30-106-040 C-TR,CMBT5551 87-A30-276-040 C-TR,DTA143EKA 87-A30-063-080 C-TR,KRA104S 87-026-609-080 TR,KTA1266GR 87-A30-107-070 C-TR,CMBT5401 87-A30-186-010 FET,2SK3053 87-A30-086-070

36、 C-TR,CSD1306E 87-A30-329-080 TR,CD1585BC 89-327-143-080 TR,2SC2714 (0.1W) 87-A30-072-080 C-TR,RT1P 144C 87-A30-234-080 TR,CSC4115BC DIODE 87-A40-673-090 DIODE,D10XB20 87-A40-553-080 DIODE,1N4003 LES 87-A40-784-080 ZENER,UZ39BSB 87-A40-736-080 DIODE,1N4148M(SEM) 87-A40-764-080 ZENER,UZ10BSC 87-070-2

37、74-080 DIODE,1N4003 SEM 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 87-017-154-080 ZENER,HZS6C3L 87-020-331-080 CHIP-DIODE,DAN202K 87-A40-488-080 DIODE,1SS244 87-A40-747-080 ZENER,UZ5.1BSB 87-A40-751-080 ZENER,UZ6.2BSB 87-A4

38、0-646-010 DIODE,FMB-G16L 87-A40-745-080 ZENER,UZ4.7BSA 87-A40-749-080 ZENER,UZ5.6BSB 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 C21 87-016-035-090 CAP, E 6800-35 VR C22 87-016-035-090 CAP, E 6800-35 VR C25 87-010-392-080 CAP ELECT 33SM

39、E-35V C26 87-010-258-080 CAP,E 22-35 SME C27 87-010-392-080 CAP ELECT 33SME-35V C28 87-010-258-080 CAP,E 22-35 SME 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 330-1

40、6V C38 87-010-384-080 CAP, ELECT 100-25V C39 87-010-384-080 CAP, ELECT 100-25V C40 87-010-197-080 CAP, CHIP 0.01 DM C60 87-010-403-080 CAP, ELECT 3.3-50V C80 87-010-401-080 CAP, ELECT 1-50V C81 87-010-374-080 CAP, ELECT 47-10V C82 87-010-260-080 CAP, ELECT 47-25V C104 87-010-196-080 CHIP CAPACITOR,0

41、.1-25 C105 87-010-196-080 CHIP CAPACITOR,0.1-25 C111 87-010-401-080 CAP, ELECT 1-50V C112 87-010-401-080 CAP, ELECT 1-50V C115 87-010-401-080 CAP, ELECT 1-50V C116 87-010-401-080 CAP, ELECT 1-50V C121 87-010-406-080 CAP, ELECT 22-50 C122 87-010-406-080 CAP, ELECT 22-50 C163 87-010-196-080 CHIP CAPAC

42、ITOR,0.1-25 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 C174 87-012-368-080 C-CAP,S 0.1-50 F C175 87-A11-572-080 C-CAP,S 0.015-50 K B C176 87-A11-572-080 C-CAP,S 0.015-50 K B C177 87-010-197-080 CAP, CHIP 0.01 DM C178 87-010-197-080

43、CAP, CHIP 0.01 DM 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 CAPACITOR,0.1-25 C311 87-

44、010-198-080 CAP, CHIP 0.022 C312 87-010-198-080 CAP, CHIP 0.022 C313 87-010-180-080 C-CER 1500P C314 87-010-180-080 C-CER 1500P C315 87-010-178-080 CHIP CAP 1000P C316 87-010-178-080 CHIP CAP 1000P C317 87-A10-201-080 C-CAP,S0.33-16 KB C318 87-A10-201-080 C-CAP,S0.33-16 KB C319 87-012-141-080 CHIP-C

45、APACITOR,0.22-16F C320 87-012-141-080 CHIP-CAPACITOR,0.22-16F C321 87-012-141-080 CHIP-CAPACITOR,0.22-16F C322 87-012-141-080 CHIP-CAPACITOR,0.22-16F 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-

46、50V C332 87-010-196-080 CHIP CAPACITOR,0.1-25 C335 87-010-401-080 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 C352 87-012-140-080 CAP 4

47、70P C354 87-010-175-080 CAP 560P C355 87-012-349-080 C-CAP,S 1000P-50 CH KANRI NO. REF. NO.DESCRIPTIONPART NO.KANRI NO. REF. NO.DESCRIPTIONPART NO. - 7 - C356 87-010-260-080 CAP, ELECT 47-25V C357 87-010-197-080 CAP, CHIP 0.01 DM 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 C370 87-010-196-080 CHIP CAPACITOR,0.1-25 C371 87-010-175-080 C-CAP,S 560P-50 SL C372 87-010-175-080 C-CAP,S 560P-50 SL C373 87-010-179-080 CAP,CHIP S B1200P C374 87-010-