Aiwa-NSXSZ300-cs-sm维修电路原理图.pdf

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1、SERVICE MANUALDATACOMPACT DISCSTEREO SYSTEMBASIC TAPE MECHANISM : ZZM-3 PR1NMBASIC CD MECHANISM : BZG-5 ZD3NMNSX-AJ300NSX-AJ305NSX-SZ300NSX-SZ305UULH,EZEZS/M Code No. 09-012-440-5R1 This Service Manual is the “Revision Publishing” and replaces “Simple Manual” of NSX-AJ300/SZ300/AJ305, (S/M Code No.

2、09-011-440-5T1)and NSX-SZ305, (S/M Code No. 09-012-440-5T2). If requiring information about the CD mechanism, see Service Manual of BZG-5,(S/M Code No. 09-00C-353-3N2).REVISIONNSX-AJ300SPEAKERSYSTEMCX-NAJ300SX-NAJ302NSX-AJ305NSX-SZ300NSX-SZ305CX-NSZ300RC-ZAS02CX-NAJ305CX-NSZ305SX-NAJ302SX-R145SX-NSZ

3、302CDCASSEIVERREMOTECONTROLLERRadioFans.CN 收音机爱 好者资料库 2 SPECIFICATIONSMain unit CX-NAJ300/CX-NSZ300/CX-NAJ305/CX-NSZ305Tuning range87.5 MHz to 108 MHzUsable sensitivity (IHF)U,LH: 13.2 dBfEZ: 16.8 dBfAntenna terminals75 ohms (unbalanced)Tuning range530 kHz to 1710 kHz (10 kHz step)531 kHz to 1602 kH

4、z (9 kHz step)Usable sensitivity350 V/mAntennaLoop antennaTuning range144 kHz to 290 kHzUsable sensitivity1400 V/mAntennaLoop antennaPower outputRatedU: 60 W + 60 W (50 Hz 20 kHz,THD less than 1%, 6 ohms)LH: 62 W + 62 W(1 kHz, THD 1%, 6 ohms)EZ: 32 W + 32 W(6 ohms, THD 1%, 1 kHz/DIN 45500)ReferenceU

5、: 75 W + 75 W(1 kHz, THD less than 10%, 6 ohms)LH: 80 W + 80 W(1 kHz, THD 10%, 6 ohms)EZ: 40 W + 40 W(6 ohms, THD 10%,1 kHz/DIN 45324)EZ: DIN MUSIC POWER: 120 W + 120 WTotal harmonic distortion U: 0.08 % (30 W, 1 kHz, 6 ohms,DIN AUDIO)LH: 0.08 % (40 W, 1 kHz, 6 ohms,DIN AUDIO)EZ: 0.08 % (20 W, 1 kHz

6、, 6 ohms,DIN AUDIO)InputsVIDEO/AUX: 500 mVOutputsSPEAKERS: 6 ohms or moreSURROUND SPEAKERS 8 ohms to 16 ohmsPHONES: 32 ohms or moreTrack format4 tracks, 2 channels stereoFrequency response50 Hz 15 kHzRecording systemAC biasHeadsDeck 1: Playback x 1Deck 2: Recording/Playback x 1, erase x 1LaserSemico

7、nductor laser ( =780 nm)D-A converter1 bit dualSignal-to-noise ratio85 dB (1 kHz, 0 dB)Harmonic distortion0.05 % (1 kHz, 0 dB)Power requirementsU: 120 V AC, 60 HzLH: 120 V/220-230 V/240 V AC(switchable), 50/60 HzEZ: 230 V AC, 50 HzPower consumption300U: 70 W305U: 85 WLH: 90 WEZ: 75 WPower consumptio

8、nWith ECO mode on: 0.6 W in standby modeWith ECO mode off:U: 20 WLH: 19 WEZ: 17 WDimensions of main unit260 x 324 x 351 mm(W x H x D)(101/4 x 127/8 x 137/8 in.)Weight of main unit300U: 6.4 kg (14 lbs 2 oz.)305U: 6.5 kg (14 lbs 5 oz.)LH: 6.9 kgEZ: 5.8 kgFront Speakers SX-NAJ302/SX-NSZ302Speaker syste

9、m3 way, bass reflex (magneticshielded type)Speaker unitsWoofer: 160 mm (63/8 in.) coneTweeter: 60 mm (23/8 in.) coneSuper tweeter: 20 mm (13/16 in.) ceramicImpedance6 ohmsOutput sound pressure level 87 dB/W/mDimensions (W x H x D)230 x 324 x 235 mm(91/8 x 127/8 x 93/8 in.)WeightU: 3.5 kg (7 lbs 11 o

10、z.)LH: 4.5 kgEZ: 4.3 kgSurround Speakers SX-R145 (NSX-AJ305 only)Speaker system1 way, bass reflexSpeaker unitsFull range: 80 mm (31/4 in.) coneImpedance8 ohmsDimensions (W x H x D)100 x 132 x 116 mm(4 x 51/4 x 45/8 in.)Weight0.5 kg (1 lbs 2 oz.) Design and specifications are subject to change withou

11、t notice. The word BBEand the BBE symbol are trademarks of BBE Sound, Inc. Under license from BBE Sound,Inc.RadioFans.CN 收音机爱 好者资料库 3 CLASS 1LASER PRODUCTKLASSE 1LASER PRODUKTLUOKAN 1LASER LAITEKLASS 1LASER APPARATThis set employs laser. Therefore, be sure to follow carefullythe instructions below w

12、hen servicing.WARNING!WHEN SERVICING, DO NOT APPROACH THE LASEREXIT WITH THE EYE TOO CLOSELY. IN CASE IT ISNECESSARY TO CONFIRM LASER BEAM EMISSION.BE SURE TO OBSERVE FROM A DISTANCE OF MORETHAN 30cm FROM THE SURFACE OF THE OBJEC-TIVE LENS ON THE OPTICAL PICK-UP BLOCK.sCaution: Invisible laser radia

13、tion whenopen and interlocks defeated avoidexposure to beam.sAdvarsel: Usynlig laserstling ved bning,nr sikkerhedsafbrydere er ude af funktion.Undg udsttelse for strling.VAROITUS!Laiteen Kyttminen muulla kuin tss kyttohjeessamainitulla tavalla saataa altistaa kyt-tjnturvallisuusluokan 1 ylittvlle nk

14、ymttmllelasersteilylle.VARNING!Om apparaten anvnds p annat stt n vad somspecificeras i denna bruksanvising, kan anvndarenutsttas fr osynling laserstrlning, som verskridergrnsen fr laserklass 1.PROTECTION OF EYES FROM LASER BEAM DURING SERVICINGCAUTIONUse of controls or adjustments or performance of

15、proce-dures other than those specified herin may result inhazardous radiation exposure.ATTENTIONLutillisation de commandes, rglages ou procduresautres que ceux spcifis peut entraner une dangereuseexposition aux radiations.ADVARSELUsynlig laserstling ved bning, nr sikkerhedsafbrydereerude af funktion

16、. Undg udsttelse for strling.This Compact Disc player is classified as a CLASS 1LASER product.The CLASS 1 LASER PRODUCT label is located on therear exterior.Precaution to replace Optical block(KSS-213F)1) After the connection, remove solder shown inthe right figure.Body or clothes electrostatic pote

17、ntial could ruinlaser diode in the optical block. Be sure groundbody and workbench, and use care the clothesdo not touch the diode.Solder(KSS 213F)PICKUP Assy PWBRadioFans.CN 收音机爱 好者资料库 4 NOTE ON BEFORE STARTING REPAIRCharging voltage (V)Discharging Rated power (W)Parts number(C101, 102)resistor ()2

18、5-48100387-A00-247-09049-140220587-A00-232-090Note: The reference numbers (C101, C102) of the electrolytic capacitors can change depending on the models. Be sure to check thereference numbers of the charging capacitors on schematic diagram before starting the discharging work.2. Check items before e

19、xchanging the MICROCOMPUTERBe sure to check the following items before exchanging the MICROCOMPUTER. Exchange the MICROCOMPUTER after confirmingthat the MICROCOMPUTER is surely defective.2-1. Regarding the HOLD terminal of the MICROCOMPUTERWhen the HOLD terminal (INPUT) of the MICROCOMPUTER is “H”,

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

21、R has anyabnormalities 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 MICROCOMPUTER11111Turn on the AC main power.22222Confirm that the main power is turned on and the HOLD terminal of the MICROCOMPUTER keeps the

22、“H” level or not.33333When the HOLD terminal is “L” level, the abnormality detection circuit is judged to be working correctly and theMICROCOMPUTER is judged to be good.1. Forced discharge of electrolytic capacitor of power supply blockWhen repair is going to be attempted in the set that uses relay

23、circuit in the power supply block, electric potential is kept charged acrossthe electrolytic capacitors (C101, 102) even though AC power cord is removed. If repair is attempted in this condition, secondary defectcan occur.In order to prevent the secondary trouble, perform the following measures befo

24、re starting repair work.Discharge procedure11111Remove the AC power cord.22222Connect a discharging resistor at an end of lead wire thathas clips at both ends. Connect the other end of the leadwire to metal chassis.33333Contact the other end of the discharging resistor to thepositive (+) side (+VH)

25、of C101. (For two seconds)44444Contact the same end of the discharging resistor as step33333 to the negative (-) side (-VH) of C102 in the same way.(For two seconds)55555Check that voltage across C101 and C102 has decreasedto 1 V or less using a multimeter or an oscilloscope.Select a discharging res

26、istor referring to the following table.Fig-1MAIN C.BD101C101C1022234RadioFans.CN 收音机爱 好者资料库 5 In such a case, check also if the POWER AMPLIFIER circuit or power supply circuit has any abnormalities or not.2-2. Regarding resetThere are cases that the machine does not work correctly because the MICROC

27、OMPUTER is not reset even though the AC powercord 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 toexchange the MICROCOMPUTER. In such a case, p

28、erform the forced-reset by the following procedure and check good or nogood 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 MICROCOMPUTE

29、R returns to the normal operation, the MICROCOMPUTER isgood.Note: The reference number or MICROCOMPUTER pin number of transistor (Q110) and electrolytic capacitor (C113) can change dependingon the models. Be sure to check the reference numbers on schematic diagram before starting the discharging wor

30、k.2-3. Confirmation of soldering state of MICROCOMPUTERCheck the soldering state of the MICROCOMPUTER in addition to the above described procedures. Be sure to exchange theMICROCOMPUTER after surely confirming that the trouble is not caused by poor soldering but the MICROCOMPUTER itself.Fig-2-2MICRO

31、-COMPUTERMICROCOMPUTERFRONT C.BFRONT C.BVSSVDDC113*%C1131815Short with tweezers.RadioFans.CN 收音机爱 好者资料库 6 ELECTRICAL MAIN PARTS LISTDESCRIPTIONREF. NO.KANRINO.PART NO.DESCRIPTIONREF. NO.KANRINO.PART NO.IC 87-A21-419-040 C-IC,NJM14558MD-TE2 87-A21-893-040 C-IC,NJM14558V-TE2 87-A21-695-010 IC,LA1845L

32、87-070-127-110 IC,LC72131D 87-A20-440-040 C-IC,BU1920FS 87-A21-218-110 IC,NJL64H380A 87-A21-401-040 C-IC,M61503FP 8B-NF9-602-030 C-IC,UPD780228GF-078-3BA 8B-NF9-601-030 C-IC,UPD780226GF-021-3BA 87-A21-269-010 IC,EW732TRANSISTOR 87-A30-559-010 TR,CSB1370EF 87-A30-492-080 TR,2SC5343G 87-A30-076-080 C-

33、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,KTC3198GR 87-A30-190-080 TR,CC5551 87-A30-106-040 C-TR,CMBT5551 87-A30-162-010 FET,2SK2937 87-A30-091-080 FET,2SJ460 87-A30-090-080 FET,2SK2541 87-A30-062-080 C-TR,KRC104S 87-A30-495-0

34、80 TR,2SA1981Y 87-A30-234-080 TR,CSC4115BC 89-327-143-080 C-TR,2SC2714(O) 87-A30-489-080 C-TR,KRA107S 89-503-602-080 C-FET,2SK360E 87-A30-086-040 C-TR,CSD1306E 87-A30-494-080 TR,2SA1980G 87-A30-528-010 TR,2SB1686 87-A30-529-010 TR,2SD2642 87-A30-087-080 C-FET,2SK2158 87-A30-074-080 C-TR,RT1P141C 87-

35、A30-582-080 TR,CDA1585BC 87-A30-468-080 C-TR,KRC102S-RTK 87-026-213-080 C-TR,DTC114YK 87-A30-288-040 C-TR,DTC114YKADIODE 87-A40-393-090 DIODE,1N5402GW(F20) 87-A40-553-080 DIODE,1N4003 LES 87-A40-776-080 ZENER,UZ27BSD 87-A40-764-080 ZENER,UZ10BSC 87-A40-270-080 C-DIODE,MC2838 87-A40-269-080 C-DIODE,M

36、C2836 87-A40-291-080 DIODE,1N4148M(CPT) 87-A40-749-080 ZENER,UZ5.6BSB 87-017-149-080 ZENER,HZS6A2L 87-A40-454-090 DIODE,1N5393 GW 12.5 87-A40-747-080 ZENER,UZ5.1BSB 87-A40-739-080 ZENER,UZ2.7BSA 87-A40-748-080 ZENER,UZ5.6BSA 87-A40-455-090 DIODE,RL203GWMAIN C.B C3 87-012-368-080 C-CAP,S 0.1-50 Z F C

37、4 87-012-368-080 C-CAP,S 0.1-50 Z F C5 87-012-368-080 C-CAP,S 0.1-50 Z F C6 87-012-368-080 C-CAP,S 0.1-50 Z F C9 87-010-759-080 C-CAP,U 0.1-25 Z F C10 87-010-759-080 C-CAP,U 0.1-25 Z F C11 87-010-759-080 C-CAP,U 0.1-25 Z F C12 87-010-759-080 C-CAP,U 0.1-25 Z F C19 87-A12-036-000 CAP, E 2200-63 M SMG

38、 C19 87-A12-776-090 CAP, E 2200-50 M 85 SKR C20 87-A12-036-000 CAP, E 2200-63 M SMG C20 87-A12-776-090 CAP, E 2200-50 M 85 SKR C21 87-A12-777-090 CAP, E 3300-25 M 85 SKR C22 87-A12-777-090 CAP, E 3300-25 M 85 SKR C25 87-A12-072-080 CAP, E 100-25 SMG C26 87-A12-072-080 CAP, E 100-25 SMG C27 87-A12-07

39、2-080 CAP, E 100-25 SMG C28 87-A12-072-080 CAP, E 100-25 SMG C30 87-A12-095-080 CAP, E 100-50 SMG C31 87-A12-062-080 CAP,E 100-10 SMG C32 87-012-286-080 C-CAP, U 0.01-25 C33 87-A12-062-080 CAP,E 100-10 SMG C34 87-A12-072-080 CAP, E 100-25 SMG C35 87-A12-071-080 CAP, E 47-25 SMG C36 87-A12-067-080 CA

40、P, E 330-16 SMG C38 87-012-286-080 C-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 C83 87-A12-068-080 CAP, E 470-16 SMG C97 87-010-831-080 C-CAP,U 0.1-16 Z F C101 87-012-279-080 C-CAP,U 2700P-50 B C101 87-012-278-080 C-CAP,

41、U 2200P-50 K B C102 87-012-279-080 C-CAP,U 2700P-50 B C102 87-012-278-080 C-CAP,U 2200P-50 K B C103 87-A12-084-080 CAP,E 0.022-50 SMG C104 87-A12-084-080 CAP,E 0.022-50 SMG C105 87-012-277-080 C-CAP,U 1800P-50 K B GRM C106 87-012-277-080 C-CAP,U 1800P-50 K B GRM C107 87-A12-089-080 CAP,E 3.3-50 SMG

42、C108 87-A12-089-080 CAP,E 3.3-50 SMG C109 87-012-195-080 C-CAP,U 100P-50 CH C110 87-012-195-080 C-CAP,U 100P-50 CH C111 87-A12-077-080 CAP,E 33-35 SMG C112 87-A12-077-080 CAP,E 33-35 SMG C113 87-012-195-080 C-CAP,U 100P-50 CH C113 87-A10-596-080 C-CAP,S 100P-100 J CH C114 87-012-195-080 C-CAP,U 100P

43、-50 CH C114 87-A10-596-080 C-CAP,S 100P-100 J CH C117 87-A12-368-080 C-CAP,S 0.1-50 Z F C118 87-A12-368-080 C-CAP,S 0.1-50 Z F C119 87-012-286-080 C-CAP,U 0.01-25 C120 87-012-286-080 C-CAP,U 0.01-25 C123 87-010-177-080 C-CAP,S 820P-25 J SL C2012 C124 87-010-177-080 C-CAP,S 820P-25 J SL C2012 C133 87

44、-012-282-080 C-CAP,U 4700P-50 C140 87-012-278-080 C-CAP,U 2200P-50 C186 87-010-759-080 C-CAP,U, 0.1-25F C187 87-010-866-080 CAP,E 10-63 M VX C187 87-A12-091-080 CAP,E 10-50 SMG C188 87-010-866-080 CAP,E 10-63 M VX C188 87-A12-091-080 CAP,E 10-50 SMG C223 87-012-272-080 C-CAP,U 680P-50 B C224 87-012-

45、272-080 C-CAP,U 680P-50 B C225 87-012-368-080 C-CAP,S 0.1-50 Z F C226 87-012-368-080 C-CAP,S 0.1-50 Z F C227 87-012-368-080 C-CAP,S 0.1-50 Z F C228 87-012-368-080 C-CAP,S 0.1-50 Z F C229 87-012-191-080 C-CAP,U 0.015-50 Z F GRM C230 87-012-191-080 C-CAP,U 0.015-50 Z F GRM C231 87-012-286-080 CAP, U 0

46、.01-25 C232 87-012-286-080 CAP, U 0.01-25 C235 87-A12-094-080 CAP,E 47-50 SMG C236 87-A12-094-080 CAP,E 47-50 SMG C241 87-010-831-080 C-CAP,U 0.1-16 Z F C301 87-012-275-080 C-CAP,U 1200P-50 K B GRM C302 87-012-275-080 C-CAP,U 1200P-50 K B GRM C303 87-012-275-080 C-CAP,U 1200P-50 K B GRMRadioFans.CN

47、收音机爱 好者资料库 7 DESCRIPTIONREF. NO.KANRINO.PART NO.DESCRIPTIONREF. NO.KANRINO.PART NO. C304 87-012-275-080 C-CAP,U 1200P-50 K B GRM C307 87-A12-062-080 CAP,E 100-10 SMG C308 87-A12-062-080 CAP,E 100-10 SMG C309 87-012-188-080 C-CAP,U 47P-50 J CH C310 87-012-188-080 C-CAP,U 47P-50 J CH C313 87-012-284-0

48、80 CAP, U 6800P-50 C314 87-012-284-080 CAP, U 6800P-50 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 87-010-787-080 C-CAP,U 0.022-25 K B C327 87-010-831-080 C-CAP,U 0.1-16 Z F C350 87-012-286-080 C-CAP,U 0.01-25 K B C360 87-A12-

49、087-080 CAP,E 1-50 SMG C399 87-A10-039-080 C-CAP, U 470P-50 J CH 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 87-012-286-080 CAP, U 0.01-25 C406 87-012-286-080 CAP, U 0.01-25 C407 87-012-286

50、-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-A12-069-080 CAP,E 22-25 SMG C453 87-012-279-080 C-CAP,U 2700P-50 B C454 87-012-279-080