Aiwa-NSX-WVT77-Service-Manual 电路图 维修手册.pdf

《Aiwa-NSX-WVT77-Service-Manual 电路图 维修手册.pdf》由会员分享，可在线阅读，更多相关《Aiwa-NSX-WVT77-Service-Manual 电路图 维修手册.pdf（46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 CASSETTE RECEIVER NSX-WVT77HR S/M Code No. 09-007-433-1R1 REVISION BASIC TAPE MECHANISM: 2ZM-3MK2 PR4NM BASIC CD MECHANISM: 6ZG-1 VZRNDM This Service Manual is the “Revision Publishing” and replaces “Simple Manual” NSX-WVT77, (S/M Code No. 09-006-433-1T1). Thi

2、s Service Manual does not include “ CD TEST MODE”. This item will be issued in the next supplement. If requiring information about the CD mechanisim, see Service Manual of 6ZG-1 (S/M Code No. 09-001-338-7N4). CD-CASSEIVER CX-NWVT77 SPEAKER SX-NT92 SX-CR677 SYSTEM NSX-WVT77 REMOTE CONTROLLER RC-ZAS08

3、 RadioFans.CN 收音机爱 好者资料库 SPECIFICATIONS Tuning range87.5 MHz 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 Tuning range5.730 MHz to 17.900

4、MHz AntennaWire antenna Power outputFront Rated: 139 W + 139 W (6 ohms, T.H.D. 1 %, 1 kHz) Reference: 175 W + 175 W (6 ohms, T.H.D. 10 %, 1 kHz) Rear (Surround) Rated: 33 W + 33 W (8 ohms, T.H.D. 1%, 1 kHz) Reference: 40 W + 40 W (8 ohms, T.H.D. 10%, 1 kHz) Center Rated: 34 W (8 ohms, T.H.D. 1%, 1 k

5、Hz) Reference: 40 W (8 ohms, T.H.D. 10%, 1 kHz Total harmonic distortion 0.3 % (70 W, 1 kHz, 6 ohms, DIN AUDIO) InputsVIDEO/AUX : 300 mV (adjustabe) MD: 300 mW(adjustable) MIC 1, MIC 2: 1.0 mV (10 kohms) 5.1 CH INPUT: FRONT (L,R): 240 mV SURROUND (L,R): 240 mV CENTER: 600 mV SUB WOOFER: 240 mV Outpu

6、tsLINE OUT: 150 mV VIDEO OUT: 1.0 Vp-p (75 ohms) SPEAKERS: accept speakers of 6 ohms or more SURROUND SPEAKERS: accept speakers of 8 ohms to 16 ohms CENTER SPEAKERS : accept speakers of 8 ohms or more PHONES (stereo jack) : accepts headphones of 32 ohms or more Track format4 tracks, 2 channels stere

7、o Frequency responseCrO2 tape: 50 Hz 16000 Hz Normal tape: 50 Hz 15000 Hz Signal-to-noise ratio60 dB (Dolby B NR ON, CrO2 tape peak level Recording systemAC bias HeadsDeck 1: Playback head x 1 Deck 2: Recording/Playback head x 1, erase head x 1 LaserSemiconductor laser ( =780 nm) D-A converter1 bit

8、dual Signal-to-noise ratio83 dB (1 kHz, 0 dB) Harmonic distortion0.05 % (1 kHz, 0 dB) Wow and flutterCrystal accuracy Video signalNTSC/PAL color format (selectable) Video dataMPEG 1 Audio dataMPEG 1, LAYER 2 Cabinet type3 way (magnetic shielded type) SpeakersWoofer : 160 mm (63/8 in.) cone type Twee

9、ter: 80 mm (31/4 in.) cone type Super Tweeter : 20 mm (13/16 in.) ceramic type Impedance6 ohms / 8 ohms Sensitivity87 dB/W/m Dimensions (W x H x D)250 x 383 x 314 mm (97/8 x 151/8 x 123/8 in.) Weight6.0 kg (13 lbs 4 oz) Power requirements120 V/220-230 V/240 V AC switchable, 50/60 Hz Power consumptio

10、n230 W Dimensions of main unit300 x 383.5 x 380 mm (W x H x D)(117/8 x 151/8 x 15 in.) Weight of main unit13.5 kg (29 lbs 12 oz) Standby power consumption If the power-economizing mode is OFF: 35 W If the power-economizing mode is ON: 0.9 W Design and specifications are subject to change without not

11、ice. 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 symbol are trademarks of BBE Sound, Inc. Under license from BBE Sound,Inc. 2 RadioFan

12、s.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. IN CASE IT IS

13、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 laserstling ved bning

14、, 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 specificeras i den

15、na 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 radiation expos

16、ure. 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 classified as a CL

17、ASS 1 LASER product. The CLASS 1 LASER PRODUCT 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

18、. 1) After the connection, remove solder shown in right figure. PICK-UP Assy P.W.B Solder RadioFans.CN 收音机爱 好者资料库 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 num

19、bers (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 the following items be

20、fore 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 operating correctly. When thi

21、s 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 the abnormality detect

22、ion 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 HOLD terminal is “L” lev

23、el, 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 block, electric potentia

24、l 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. Discharge procedure 1111

25、1Remove 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 seconds) 44444Contact th

26、e 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 referring to the following tab

27、le.Fig-1 MAIN C.B D101 C101C102 22 34 4 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 i

28、s 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 the following procedur

29、e 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 normal operation, the MICROC

30、OMPUTER 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. Confirmation of soldering state of

31、 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 MICROCOMPUTER FRONT C.B FR

32、ONT C.B VSS VDD C113 * % C113 18 15 Short with tweezers. 5 KANRI NO. REF. NO.DESCRIPTIONPART NO.KANRI NO. REF. NO.DESCRIPTIONPART NO. 6 ELETRICAL MAIN PARTS LIST IC 8A-NH3-635-010 C-IC,LC876572V-5R46 87-020-454-010 IC,DN6851 87-A21-397-010 IC,STK490-070 87-A21-482-010 IC,RPM6938-H4 87-A20-869-040 C-

33、IC,M62449FP 87-A20-355-010 IC,CXA1553P 87-A20-783-040 C-IC,BA7762AFS 87-A21-577-040 C-IC,M61506FP 87-070-289-040 C-IC,BU2092F 87-A21-097-040 C-IC,M62463AFP 87-A21-021-040 C-IC,BU2099FV 87-A21-015-040 C-IC,M62491FP 87-A20-561-040 C-IC,M65847AFP 87-A21-452-030 C-IC,BD3876KS2 87-A21-051-040 C-IC,BU9990

34、-03FS 87-A21-560-010 IC,LA1844L-A 87-070-127-110 IC,LC72131D TRANSISTOR 87-A30-217-010 TR,2SB1436(R) 87-026-245-080 TR,DTC114ES 87-026-463-080 TR,2SA933S(RS) 87-A30-198-080 TR,KTC3199GR 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 89

35、-213-702-010 TR,2SB1370E 87-A30-218-080 TR,2SB1237Q 87-A30-087-080 C-FET,2SK2158 87-A30-107-070 C-TR,CMBT5401 87-A30-468-080 C-TR,KRC102S-RTK 87-A30-086-040 C-TR,CSD1306E 87-A30-074-080 C-TR,RT1P 141C 87-A30-105-080 C-TR,RT1P 441C 87-A30-190-080 TR,CC5551 87-A30-097-010 TR,FN1016 87-A30-098-010 TR,F

36、P1016 87-A30-106-040 C-TR,CMBT5551 87-A30-256-010 TR,2SD1933 87-A30-255-010 TR,2SB1342 87-A30-484-080 C-TR,KRA102S 87-A30-276-040 C-TR,DTA143EKA 87-A30-063-080 C-TR,KRA104S 87-026-609-080 TR,KTA1266GR 87-A30-186-010 FET,2SK3053 87-A30-329-080 TR,CD1585BC 89-327-143-080 C-TR,2SC2714O 87-A30-489-080 C

37、-TR,KRA107S 89-503-602-080 C-FET,2SK360E 87-A30-234-080 TR,CSC4115BC DIODE 87-A40-673-090 DIODE,D10XB20 87-017-447-010 DIODE,GBU4DL-6419 87-017-654-060 DIODE,GBU6JL6131 87-020-465-080 DIODE,1SS133 87-A40-553-080 DIODE,1N4003 LES 87-A40-781-080 ZENER,UZ36BSA 87-A40-764-080 ZENER,UZ10BSC 87-070-274-08

38、0 DIODE,1N4003 SEM 87-A40-270-080 C-DIODE,MC2838 87-A40-269-080 C-DIODE,MC2836 87-A40-768-080 ZENER,UZ16BSA 87-A40-313-080 C-DIODE,MC2840 87-017-154-080 ZENER,HZS6C3L 87-020-331-080 C-DIODE,DAN202K 87-A40-488-080 DIODE,1SS244 87-A40-455-080 DIODE,RL203 GW 87-A40-749-080 ZENER,UZ5.6BSB 87-A40-747-080

39、 ZENER,UZ5.1BSB 87-A40-760-080 ZENER,UZ9.1BSA 87-A40-751-080 ZENER,UZ6.2BSB 87-A40-646-010 DIODE,FMB-G16L 87-A40-438-080 ZENER,MTZJ4.7A 87-A40-618-080 VARI-CAP,SVC 348(S/T) 87-017-149-080 ZENER,HZS6A2L MAIN C.B C003 87-012-368-080 C-CAP,S 0.1-50 Z F C004 87-012-368-080 C-CAP,S 0.1-50 Z F C021 87-016

40、-035-090 CAP,E 6800-35 M VR C022 87-016-035-090 CAP,E 6800-35 M VR C025 87-010-990-080 CAP,E 33-100 M SME C026 87-016-300-080 CAP,E 22-100 M SME C027 87-010-990-080 CAP,E 33-100 M SME C028 87-016-300-080 CAP,E 22-100 M SME C031 87-010-263-080 CAP,E 100-10 M 11L SME C032 87-010-197-080 C-CAP,S 0.01-2

41、5 K B C2012 C033 87-010-263-080 CAP,E 100-10 M 11L SME C034 87-010-247-080 CAP,E 100-50 M SME C035 87-010-406-080 CAP,E 22-50 M 11L SME C036 87-010-381-080 CAP,E 330-16 M SME C038 87-010-393-080 CAP,E 100-35 M SME C039 87-010-393-080 CAP,E 100-35 M SME C040 87-010-190-080 C-CAP,S 0.01-50 Z F C2012 C

42、060 87-010-403-080 CAP,E 3.3-50 M 11L SME C080 87-010-401-080 CAP,E 1-50 M 11L SME C081 87-010-374-080 CAP,E 47-10 M 11L SME C082 87-010-260-080 CAP,E 47-25 M 11L SME C115 87-010-401-080 CAP,E 1-50 M 11L SME C116 87-010-401-080 CAP,E 1-50 M 11L SME C152 87-010-260-080 CAP,E 47-25 M 11L SME C160 87-0

43、12-140-080 C-CAP,S 470P-50 J CH C163 87-010-196-080 C-CAP,S 0.1-25 Z F C2012 C171 87-012-368-080 C-CAP,S 0.1-50 Z F C172 87-012-368-080 C-CAP,S 0.1-50 Z F C173 87-012-368-080 C-CAP,S 0.1-50 Z F C174 87-012-368-080 C-CAP,S 0.1-50 Z F C175 87-A11-572-080 C-CAP,S 0.015-50 K B C176 87-A11-572-080 C-CAP,

44、S 0.015-50 K B C177 87-010-197-080 C-CAP,S 0.01-25 K B C2012 C178 87-010-197-080 C-CAP,S 0.01-25 K B C2012 C301 87-010-318-080 C-CAP,S 47P-50 J CH GRM C302 87-010-318-080 C-CAP,S 47P-50 J CH GRM C303 87-012-157-080 C-CAP,S 330P-50 J CH GRM C304 87-012-157-080 C-CAP,S 330P-50 J CH GRM C305 87-012-157

45、-080 C-CAP,S 330P-50 J CH GRM C306 87-012-157-080 C-CAP,S 330P-50 J CH GRM C307 87-010-196-080 C-CAP,S 0.1-25 Z F C2012 C311 87-010-198-080 C-CAP,S 0.022-25 K B C2012 C312 87-010-198-080 C-CAP,S 0.022-25 K B C2012 C313 87-010-180-080 C-CAP,S 1500P-50 K B C2012 C314 87-010-180-080 C-CAP,S 1500P-50 K

46、B C2012 C315 87-010-178-080 C-CAP,S 1000P-50 K B C2012 C316 87-010-178-080 C-CAP,S 1000P-50 K B C2012 C317 87-A10-201-080 C-CAP,S 0.33-16 K B C318 87-A10-201-080 C-CAP,S 0.33-16 K B C319 87-012-141-080 C-CAP,S 0.22-16 Z F C2012 C320 87-012-141-080 C-CAP,S 0.22-16 Z F C2012 C321 87-012-141-080 C-CAP,

47、S 0.22-16 Z F C2012 C322 87-012-141-080 C-CAP,S 0.22-16 Z F C2012 C324 87-010-260-080 CAP,E 47-25 M 11L SME C325 87-010-370-080 CAP,E 330-6.3 M SME KANRI NO. REF. NO.DESCRIPTIONPART NO.KANRI NO. REF. NO.DESCRIPTIONPART NO. 7 C327 87-010-404-080 CAP,E 4.7-50 M 11L SME C328 87-010-404-080 CAP,E 4.7-50 M 11L SME C332 87-010-196-080 C-CAP,S 0.1-25 Z F C2012 C335 87-010-401-080 CAP,E 1-50 M 11L SME C336 87-010-401-080 CAP,E 1-50 M 11L SME C337 87-010-196-080 C-CAP,S 0.1-25 Z F C2012 C339 87-010-196-080 C-CAP,S 0.