Aiwa-NSXT76-cs-sm 电路图 维修手册.pdf

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1、SERVICE MANUAL DATA COMPACT DISC STEREO CASSETTE RECEIVER NSX-D77 NSX-T76 NSX-T77 U LH HS S/M Code No. 09-005-425-2R2 REVISION BASIC TAPE MECHANISM: 2ZM-3MK2 PR4NM BASIC CD MECHANISM: 6ZG-1 ZRNDM CDCASSEIVER CXND77 CX-NT76 CX-NT77 SPEAKER SXWND77 SX-WNT98 SX-WNT77 REMOTE CONTROLLER RCZAS04 SYSTEM NS

2、XD77 NSX-T76 NSX-T77 This Service Manual is the “Revision Publishing” and replaces “Simple Manual” NSX-D77 (S/M Code No. 09-002-425-2T2) and NSX-T76 (S/M Code No. 09-004-425-2T3) and NSX-T77 (S/M Code No. 09-004-425-2T4). If requiring information about the CD mechanisim, see Service Manual of 6ZG-1

3、(S/M Code No. 09-001-338-7N2). 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 Mi

4、d-high frequency amplifier Power output*40 W + 40 W (200 Hz - 20 kHz, THD less than 1%, 8 ohms) Rated: 44 W + 44 W (8 ohms, THD 1%, 1 kHz) Reference: 55 W + 55 W (8 ohms, THD 10%, 1 kHz) Rated: 56 W + 56 W (8 ohms, THD 1%,1 kHz) Reference: 70 W + 70 W (8 ohms, THD 10%,1 kHz) Total harmonic distortio

5、n 0.3% (26 W, 1 kHz, 8 ohms, DIN AUDIO) 0.3% (28 W, 1 kHz, 8 ohms, DIN AUDIO) Low frequency amplifier Power output*120 W + 120 W (50 Hz - 200 Hz, THD less than 1%, 6 ohms) Rated: 131 W + 131 W (6 ohms, THD 1%, 75 Hz) Reference: 165 W + 165 W (6 ohms, THD 10%,75 Hz) Rated: 167 W + 167 W (6 ohms, THD

6、1%, 75 Hz) Reference: 210 W + 210 W (6 ohms, THD 10%, 75 Hz) Total harmonic distortion 0.3 % (65 W,75 Hz,6 ohms, DIN AUDIO) 0.3 % (84 W,75 Hz,6 ohms, DIN AUDIO) * without connecting to surround speakers InputsVIDEO/AUX: 300 mV (adjustable) MD: 300 mV (adjustable) MIC 1,MIC 2: 1 mV (10 kohms) Outputs

7、LINE OUT: 150 mV 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 to 16 ohms PHONES (stereo jack): accepts headphones of 32 ohms or more Track format4 tracks, 2 channels stereo Frequency responseCrO2 ta

8、pe: 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: Playback 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 ratio8

9、3 dB (1 kHz, 0 dB) Harmonic distortion0.05 % (1 kHz, 0 dB) Wow and flutterUnmeasurable Cabinet type4 way, built-in subwoofer (magnetic shielded type) SpeakersSubwoofer: 200 mm ( 77/8 in.) cone type Woofer: 120 mm ( 43/4 in.) cone type Tweeter: 60 mm ( 23/8 in.) cone type Super Tweeter: 20 mm (13/16

10、in.) ceramic type Impedance6 ohms / 8 ohms Output sound pressure level 87 dB/W/m Dimensions (W x H x D)260 x 383 x 326 mm (97/8 x 151/8 x 121/4 in.) Weight7.5 kg (16 lbs 9 oz) Cabinet type4 way, built-in subwoofer SpeakersSubwoofer: 200 mm ( 77/8 in.) cone type Mid range: 100 mm ( 315/16 in.) cone t

11、ype 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. 10 oz) Cabinet type4 way, built-in subwoofer (magnetic shie

12、lded type) SpeakersSubwoofer: 200 mm ( 77/8 in.) cone type Mid range: 100 mm ( 4 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 18 x 123

13、/8 in.) Weight7.0 kg (15 lbs 7 oz) Power requirements120 V AC, 60 Hz, 220 V AC, 60 Hz AC 120 V/220-230 V/240 V, (switchable ) 50/60Hz Power consumption170 W, 245 W, 275 W Dimensions of main unit300 x 382.6 x 396.4mm (117/8 x 151/8 x 15 5/8in.) Weight of main unit13.2 kg (29 lbs 2 oz) 13.7 kg (30 lbs

14、 3 oz) Standby power consumption If the power-economizing mode is OFF: 35 W, 36 W If the power-economizing 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 d

15、ouble-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 - 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 s

16、et 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 30cm FROM THE SURF

17、ACE 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 Kyttminen muulla

18、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 fr laserklass 1. PR

19、OTECTION 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 peut entraner une da

20、ngereuse 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. Precaution to replace

21、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 P.C.B Solder RadioFans.CN 收音机爱

22、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 sure to check

23、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 MICROCOMPUTER

24、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 terminal voltag

25、e 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 judgement of the MIC

26、ROCOMPUTER 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 MICROCOMPUTER is judge

27、d 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 is removed.

28、 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 has clips a

29、t 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 C102 in the sam

30、e 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 circuit

31、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. When the ab

32、ove 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. 22222Short both e

33、nds 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 (Q110) and e

34、lectrolytic 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 described p

35、rocedures. 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. KANRI NO. REF. NO.DESCRIPTIONPART NO.KANR

36、I 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,STK490-110 87-A21-397-010 IC,STK490-070 87-A20-355-010 IC,CXA1553P 87-A20-783-040 C-IC,BA7762AFS 87-A21-577-040 C-IC,M61

37、506FP 87-070-289-040 IC,BU 2092F 87-A21-021-040 C-IC,BU2099FV 87-A21-018-040 C-IC,M65849BFP631D 87-A21-452-030 C-IC,BD3876KS2 87-A21-051-040 C-IC,BU9990-03FS 87-A21-560-010 IC,LA1844L-A 87-070-127-110 IC,LC72131D 87-020-454-010 IC,DN6851 TRANSISTOR 87-A30-217-010 TR,2SB1436(R) 87-026-245-080 TR,DTC1

38、14ES 87-A30-198-080 TR,KTC3199GR 89-213-702-010 TR,2SB1370 (1.8W) 87-026-610-080 TR,KTC3198GR 87-A30-105-080 C-TR,RT1P441C 87-A30-489-040 C-TR,KRA107S 87-A30-468-080 C-TR,KRC102S-RTK 87-A30-484-080 C-TR,KRA102S 87-A30-076-080 C-TR,2SC3052F 87-A30-075-080 C-TR,2SA1235F 87-A30-318-080 TR,CSA952K 87-A3

39、0-218-080 TR,2SB1237(Q) 87-A30-087-080 C-FET,2SK2158 87-A30-269-040 C-FET,2SJ461-T1 87-A30-073-080 C-TR,RT1N 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,

40、KRA104S 87-026-609-080 TR,KTA1266GR 87-A30-107-070 C-TR,CMBT5401 87-A30-186-010 FET,2SK3053 87-A30-086-070 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 87-026-463-080 TR,2SA933SRS DIODE 87-A40-673-090 DIODE,D10XB2

41、0 87-A40-553-080 DIODE,1N4003 LES 87-A40-784-080 ZENER,UZ39BSB 87-020-465-080 DIODE,1SS133 87-A40-764-080 ZENER,UZ10BSC 87-A40-781-080 ZENER,UZ36BSA 87-A40-438-080 ZENER,MTZJ4.7A 87-017-447-010 DIODE,GBU4DL-6419 87-017-654-060 DIODE,GBU6JL6131 87-070-274-080 DIODE,1N4003 SEM 87-A40-313-080 C-DIODE,M

42、C 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-A40-646-010 DIODE,FMB-G16L 87-A40-745-080 ZENER,UZ

43、4.7BSA 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 87-010-990-080 CAP,E 33-100 M SME C26 87-016-300-080 CAP,E 22-100 M SME C27 87-

44、010-990-080 CAP,E 33-100 M SME C28 87-016-300-080 CAP,E 22-100 M 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 87-010-406-080 CAP,E 22-50 M 11L SME C36 87-010-381-080 CAP, ELECT 330-16V C38 87-010-393-080 CAP,E 100-35 M SME C

45、39 87-010-393-080 CAP,E 100-35 M SME C40 87-010-190-080 C-CAP,S 0.01-50 Z F C2012 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,0.1-25 C105 87-010-196-080 CHIP CAP

46、ACITOR,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 C117 87-012-142-080 C-CAP,S 0.33-16 Z F GRM C118 87-012-142-080 C-CAP,S 0.33-16 Z F GRM C121 87-010-406-080 CAP, ELECT 22-50 C122 87-010-4

47、06-080 CAP, ELECT 22-50 C151 87-010-405-080 CAP,E 10-50 M 11L SME C152 87-010-260-080 CAP,E 47-25 M 11L SME C163 87-010-196-080 CHIP CAPACITOR,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 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 87-01