Aiwa-NSXR31-cs-sm 电路图 维修手册.pdf

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1、SERVICE MANUAL DATA CD STEREO SYSTEM NSX-R30 NSX-R31 NSX-R37 S/M Code No. 09-025-454-5R3 REVISION EZ,K EZ EZ BASIC CD MECHANISM : BZG-2 ZD5GNC BASIC TAPE MECHANISM : ZZM-3 YPR4NC This Service Manual is the Revision Publishing and replaces Simple Manual NSX-R30/R31/R37, (S/M Code No. 09-022-454-5T3).

2、 If requiring information about the CD mechanisim, see Service Manual of BZG-2, (S/M Code No. 09-023-353-2N8). NSXR30 SPEAKERSYSTEM CD CASSEIVER SXNR30 CXNR30 REMOTE CONTROLLER RCCAS10 NSXR31CXNR31 NSXR37CXNR37SXNR37 RadioFans.CN 收音机爱 好者资料库 2 SPECIFICATIONS .3 PROTECTION OF EYES FROM LASER BEAM DURI

3、NG SERVICING .4 NOTE BEFORE STARTING REPAIR .5, 6 ELECTRICAL PARTS LIST (CX-NR30/31/37) .7 19 ELECTRICAL PARTS LIST (ZZM-3 YPR4NC) .20 TRANSISTOR ILLUSTRATION.21 WIRING 1 (MAIN).22 SCHEMATIC DIAGRAM 1 (MAIN 1/2) .23 SCHEMATIC DIAGRAM 2 (MAIN 2/2) .24 WIRING 2 (FRONT) .25 SCHEMATIC DIAGRAM 3 (FRONT /

4、 DECK) .26 WIRING 3 (PT) .27 SCHEMATIC DIAGRAM 4 (PT).28 WIRING 4 (HP).29 SCHEMATIC DIAGRAM 5 (HP) .30 WIRING 5 (DECK).31 FL (CNF-8 FL-BJ867GNK) GRID ASSIGNMENT / ANODE CONNECTION.32 IC BLOCK DIAGRAM .33 IC DESCRIPTION .34, 35 ADJUSTMENT .36 41 CD TEST MODE .42 MECHANICAL EXPLODED VIEW . 43 MECHANIC

5、AL PARTS LIST .44 COLOR NAME TABLE.45 TAPE MECHANISM EXPLODED VIEW . 46 TAPE MECHANISM PARTS LIST.47, 48 GENERAL SPEAKER DISASSEMBLY INSTRUCTIONS (FOR REFERENCE) . 49 SPEAKER PARTS LIST.50 ACCESSORIES / PACKAGE LIST.51 OTHER PARTS LIST (CX-NR30/31/37).52 OTHER PARTS LIST (SX-NR30/37) .53 OTHER PARTS

6、 LIST (ZZM-3 YPR4NC) .54 TABLE OF CONTENTS RadioFans.CN 收音机爱 好者资料库 3 SPECIFICATIONS Design and specifications are subject to change without notice. MAIN UNIT CX-NR30/31/37 TUNER FM tuning range87.5 MHz to 108 MHz FM usable sensitivity (IHF)16.8 dBf FM antenna terminal75 ohms (unbalanced) MW tuning r

7、ange531 kHz to 1602 kHz (9 kHz step) 530 kHz to 1710 kHz (10 kHz step) MW usable sensitivity350 V/m LW tuning range144 kHz to 290 kHz LW usable sensitivity1400 V/m MW/LW antennaLoop antenna AMPLIFIER Power outputRated: 32 W + 32 W (6 ohms, T.H.D. 1%, 1 kHz/DIN 45500) Reference: 40 W + 40 W (6 ohms,

8、T.H.D. 10%, 1 kHz/DIN 45324) 10 %, 6 ohms) 30EZ,31EZ,37EZ: DIN MUSIC POWER: 100 W + 100 W Total harmonics distortion0.08 % (16 W, 1 kHz, 6 ohms, DIN AUDIO) InputVIDEO/AUX: 500 mV OutputsSPEAKERS: 6 ohms or more PHONES: 32 ohms or more CASSETTE DECK Track format4 tracks, 2 channels stereo Frequency r

9、esponse50 Hz - 15 kHz Recording systemAC bias HeadsDECK 1: playback x 1 DECK 2: recording/playback x 1, erase x 1 CD PLAYER 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) GENERAL Power requirements230 V AC

10、, 50 Hz Power consumption75 W Power consumptionWith ECO mode on: 0.6 W in standby modeWith ECO mode off: 17 W Dimensions (W x H x D)260 x 324 x 315 mm Weight6.0 kg FRONT SPEAKER SX-R30/R37 Speaker system3 way, bass reflex (magnetic shielded) Speaker unitsWoofer: 160 mm cone Tweeter: 60 mm cone Super

11、 tweeter: 20 mm ceramic x 2 Impedance6 ohms Dimensions (W x H x D)230 x 324 x 227 mm Weight3.5 kg RadioFans.CN 收音机爱 好者资料库 4 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 s

12、ervicing. 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 SURFACE OF THE OBJECTIVE LENS ON THE OPTICAL PICK-UP BLOCK. sCaution: Invisible laser radi

13、ation 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 kuin tss kyttohjeessa mainitulla tavalla saataa altistaa kyt-tjn turvallisuusluokan 1 yl

14、ittvlle 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. PROTECTION OF EYES FROM LASER BEAM DURING SERVICING CAUTION Use of controls or adjustments

15、 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 dangereuse exposition aux radiations. ADVARSEL Usynlig laserstling ved bning, nr sikkerhed

16、safbrydereer 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 Optical block (KSM213RSCM) 1) After the connection, remove solder shown in the right fig

17、ure. 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. SOLDER 5 NOTE ON BEFORE STARTING REPAIR Charging voltage (V)Discharging Rated power (W)Parts number (C101, 102)resistor () 25-

18、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 the reference numbers of the charging capacitors on schematic diagram before starting the discharging work. 2. Check items before

19、 exchanging the MICROCOMPUTER Be sure to check the following items before 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

20、 “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 voltage of the HOLD terminal before exchange. When the MICROCOMPUTER is not defective, the HOLD terminal can also go “L” when the POWER

21、 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 MICROCOMPUTER 11111Turn on the AC main power. 22222Confirm that the main power is turned on and the HOLD terminal of the MICROCOMPUT

22、ER 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 judged to be good. 1. Forced discharge of electrolytic capacitor of power supply block When repair is going to be attempted in the set

23、 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. If repair is attempted in this condition, secondary defect can occur. In order to prevent the secondary trouble, perform the fol

24、lowing 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 at both ends. Connect the other end of the lead wire to metal chassis. 33333Contact the other end of the discharging resistor to t

25、he 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 same way. (For two seconds) 55555Check that voltage across C101 and C102 has decreased to 1 V or less using a multimeter or an oscil

26、loscope. Select a discharging resistor referring to the following table.Fig-1 MAIN C.B D101 C101C102 22 34 6 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 b

27、ecause 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 above described phenomenon occurs, it can lead to wrong judgement as if the MICROCOMPUTER is defective and to exchange the MICROCOMPUTE

28、R. 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 ends of the electrolytic capacitor C113 that is connected to VDD of the MICROCOMPUTER with tweezers. 33333Connect the AC power cord ag

29、ain. If the MICROCOMPUTER returns to the normal operation, the MICROCOMPUTER 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 s

30、tarting the discharging work. 2-3. Confirmation of soldering state of 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 MIC

31、ROCOMPUTER itself. Fig-2-2 MICRO- COMPUTER MICROCOMPUTER FRONT C.B FRONT C.B VSS VDD C113 * % C113 18 15 Short with tweezers. 7 != ! SAFETY PARTS C= Components marked All components used on this model at the production line are shown in this service manual. However, please note that not all componen

32、ts will be available as spare parts for after-sales service. Components marked S and O are designated as spare parts for service and will be stocked at the spare parts centers. Components marked X and R are not designated as spare parts for after sales service, and will not be stocked at the spare p

33、arts centers. UNIT-NAME ! C REF-NO PARTS-NO PARTS-NAME SUFFIX&MODEL ELECTRICAL PARTS LIST (CX-NR30/31/37) CX-NR30 CX-NR30 CX-NR31 CX-NR37 KSC EZSC EZSC EZBC FRONT O C 0108 87-010-785-080 C-CAP,U 0.015-25 K B GRM a b c d FRONT O C 0153 87-010-787-080 C-CAP,U 0.022-25 K B a b c d FRONT O C 0154 87-A12

34、-078-040 CAP,E 47-35 SMG a b c d FRONT O C 0155 87-010-404-040 CAP,E 4.7-50 M 11L SME a b c d FRONT O C 0156 87-010-404-040 CAP,E 4.7-50 M 11L SME a b c d FRONT O C 0301 87-012-278-080 C-CAP,U 2200P-50 K B a b c d FRONT O C 0351 87-A10-353-080 C-CAP,U 0.22-10 K B a b c d FRONT O C 0361 87-012-274-080 C-CAP,U 1000P-50 K B a b c d FRONT O C 0362 87-012-274-080 C-CAP,U 1000P-50 K B a b c d FRONT O C 0371 87-012-274-080 C-CAP,U 1000P-50 K B a b c d FRONT