Aiwa-ZHT730-cs-sm维修电路原理图.pdf

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1、SERVICE MANUALDATACOMPACT DISC STEREOCASSETTE RECEIVERBASIC TAPE MECHANISM : 2ZM-3MK2 PR5NMBASIC CD MECHANISM : 6ZG-1 ZRDMZ-HT730K, EZS/M Code No. 09-006-433-9R1REVISION This Service Manual is the Revision Publishing and replaces Simple ManualZ-HT730, (S/M Code No. 09-003-422-7T3). If requiring info

2、rmation about the CD mechanism, see Service Manual of 6ZG-1, (S/M Code No. 09-001-338-7N2).ZHT730SPEAKERSYSTEMCDCASSEIVERSXZHT730SXCR677CXZHT730REMOTECONTROLLERRCZAS05RadioFans.CN 收音机爱 好者资料库 2 SPECIFICATIONSFM tuner sectionTuning range87.5 MHz to 108 MHzUsable sensitivity (IHF)13.2 dBfAntenna termin

3、als75 ohms (unbalanced)MW tuner sectionTuning range530 kHz to 1710 kHz (10 kHz step)531 kHz to 1602 kHz (9 kHz step)Usable sensitivity350 V/mAntennaLoop antennaLW tuner sectionTuning range144 kHz to 290 kHzUsable sensitivity1400 V/mAntennaLoop antennaAmplifier sectionPower outputFrontRated: 120 W +

4、120 W(6 ohms, T.H.D. 1 %, 1 kHz)Reference: 150 W + 150 W(6 ohms, T.H.D. 10 %, 1 kHz)DIN MUSIC POWER:260 W + 260 WRear (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)DIN MUSIC POWER:85 W + 85 WCentreRated: 34 W(8 ohms, T.H.D. 1 %, 1 kHz)Refere

5、nce: 40 W(8 ohms, T.H.D. 10 %, 1 kHz)DIN MUSIC POWER: 85 WTotal harmonic distortion 0.15 % (60 W, 1 kHz, 6 ohms,DIN AUDIO/Front)InputsVIDEO/AUX: 310 mV(adjustable)PHONO: 400 mV (47 kohms)5.1CH INPUT (adjustable)FRONT: 240 mVSURROUND: 240 mVCENTER: 600 mVSUB WOOFER: 240 mVMIC1, MIC2: 1.4mV (20 kohms)

6、OutputsCD DIGITAL OUT (OPTICAL)SUB WOOFER: 1VSPEAKERS:accept speakers of 6 ohms or moreSURROUND SPEAKERS:accept speakers of 8-16 ohmsCENTER SPEAKERS:accept speakers of 8 ohms or morePHONES (stereo jack):accepts headphones of 32 ohms ormoreCassette deck sectionTrack format4 tracks, 2 channels stereoF

7、requency responseCrO2: tape: 50 Hz - 16000 HzNormal tape: 50 Hz - 15000 HzSignal-to-noise ratio50 dB (CrO2 tape peak level,above 400 Hz)Recording systemAC biasHeadsDeck 1: Playback head x 1Deck 2: Recording/playback/erase head x 1Compact disc player sectionLaserSemiconductor laser ( =780 nm)D-A conv

8、erter1 bit dualSignal-to-noise ratio85 dB (1 kHz, 0 dB)Harmonic distortion0.05 % (1 kHz, 0 dB)Wow and flutterUnmeasurableGeneralPower requirements230 V AC, 50 HzPower consumption240 WDimensions of main unit360 x 395.3 x 402.3 mm(W x H x D)(141/4 x 155/8 x 157/8 in)Weight of main unit12.8 kg (28 lbs.

9、 4 oz)Speaker system SXZHT730Cabinet type3 way, bass reflexSpeakersWoofer:220 mm (83/4 in.) cone typeTweeter:60 mm (23/8 in.) cone typeSuper tweeter:20 mm (13/16 in.) ceramic typeImpedance6 ohmsOutput sound pressure level 89 dB/W/mDimensions (W x H x D)260 x 495 x 314 mm(101/4 x 191/2 x 123/8 in.)We

10、ight6.3 kg (13 lbs. 14 oz.) The word BBEand the BBE symbol are trademarks of BBE Sound, Inc. Under license from BBE Sound,Inc. Manufactured under license from Dolby Laboratories Licensing Corporation. “DOLBY”, the double-D symbol and PRO LOGIC are trademarks of Dolby Laboratories Licensing Corporati

11、on. Design and specifications are subject to change without notice.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 when servicing.WARNING!WHEN SERVICING, DO

12、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 radiation whenopen and interlocks defeated avo

13、idexposure 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 nkymttmllelasersteilylle.VARNING!Om apparat

14、en 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 proce-dures other than those specified he

15、rin 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. Undg udsttelse for strling.This Compact

16、 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)Body or clothes electrostatic potential couldruin laser diode in the optical block. Be sureground body and workbench, and use care thecloth

17、es do not touch the diode.1) After the connection, remove solder shown inright figure.PICK-UP Assy P.C.BSolderRadioFans.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 ()25-48100387-A00-247-09049-140220587-A00-232-090Note:

18、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 exchanging the MICROCOMPUTERBe sure to check the foll

19、owing 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”, the MICROCOMPUTER is judged to be operating correctl

20、y.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 AMPLIFIER has anyabnormalities that triggers the abnormality

21、 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 “H” level or not.33333When the HOLD terminal is “L”

22、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 circuit in the power supply block, electric potentia

23、l 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 before starting repair work.Discharge procedure11111Remo

24、ve 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) of C101. (For two seconds)44444Contact the same end

25、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 resistor referring to the following table.Fig-1MAIN C.B

26、D101C101C1022234RadioFans.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 MICROCOMPUTER is not reset even though the AC powercord is

27、 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, perform the forced-reset by the following procedure a

28、nd 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 MICROCOMPUTER returns to the normal operation, the MICROCOMPUTER

29、 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 work.2-3. Confirmation of soldering state of MICROCOMPU

30、TERCheck 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-COMPUTERMICROCOMPUTERFRONT C.BFRONT C.BVSSVDDC113*%

31、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-A21-397-010 IC,STK490-070 87-A21-021-040 C-IC,BU2099FV 87-A20-783-040 C-IC,BA7762AFS 87-A21-577-040 C-IC,M61506FP 87-A21-097-040 C-IC,M62463AFP

32、87-A21-482-010 IC,RPM6938-H4 87-A21-015-040 C-IC,M62491FP 87-A21-452-040 C-IC,BD3876KS2 87-A21-415-010 IC,LA1843 87-A20-440-040 C-IC,BU1920FS 8A-MA3-656-010 C-IC,LC876580W-5P55 87-070-127-110 IC,LC72131 D 87-070-289-040 C-IC,BU2092F 87-020-454-010 IC,DN6851TRANSISTOR 87-026-609-080 TR,KTA1266GR 87-0

33、26-610-080 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,2SB1237Q 87-A30-097-010 TR,FN1016 87-A30-098-010 TR,FP1016 87-A30-186-010 FET,2SK3053 89-213-702-010 TR,2SB1370 (1.8W) 87-A30-107-070 C-TR,CMBT5401 87-026-245-080 TR,DTC114ES

34、 87-A30-198-080 TR,KTC3199GR 87-A30-484-080 C-TR,KRA102S 87-A30-257-080 C-TR,2SD1306E 87-A30-087-080 C-FET,2SK2158 87-A30-468-080 C-TR,KRC102S-RTK 87-A30-106-070 C-TR,CMBT5551 87-A30-106-040 C-TR,CMBT5551 87-A30-190-080 TR,CC5551 87-A30-256-010 TR,2SD1933 87-A30-255-010 TR,2SB1342 87-A30-074-080 C-T

35、R,RT1P 141C 87-A30-329-080 TR,CD1585BC 87-A30-063-080 C-TR,KRA104S 89-327-143-080 TR,2SC2714 (0.1W) 87-A30-489-080 C-TR,KRA107S 87-A30-086-070 C-TR,CSD1306E 89-503-602-080 C-FET,2SK360E 87-A30-234-080 TR,CSC4115BC 87-026-463-080 TR,2SA933SRSDIODE 87-020-465-080 DIODE,1SS133 (110MA) 87-A40-673-090 DI

36、ODE,D10XB20 87-A40-553-080 DIODE,1N4003 LES 87-A40-780-080 ZENER,UZ33BSD 87-A40-764-080 ZENER,UZ10BSC 87-A40-313-080 C-DIODE,MC 2840 87-A40-455-080 DIODE,RL203 GM 87-A40-646-010 DIODE,FMB-G16L 87-A40-270-080 C-DIODE,MC2838 87-A40-269-080 C-DIODE,MC2836 87-A40-768-080 ZENER,UZ16BSA 87-017-447-010 DIO

37、DE,GBU4DL-6419 87-017-931-080 ZENER,MTZJ5.6B 87-017-154-080 ZENER,HZS6C3L 87-020-331-080 CHIP-DIODE,DAN202K 87-017-654-060 DIODE,GBU6JL-6131 87-A40-488-080 DIODE,1SS244 87-A40-751-080 ZENER,UZ6.2BSB 87-A40-760-080 ZENER,UZ9.1BSA 87-A40-747-080 ZENER,UZ5.1BSB 87-A40-438-080 ZENER,MTZJ4.7A 87-017-149-

38、080 ZENER,HZS6A2LMAIN C.B C3 87-A10-712-080 C-CAP,S 0.22-50 Z F C4 87-A10-712-080 C-CAP,S 0.22-50 Z F C21 87-016-035-090 CAP,E 6800-35 M VR C22 87-016-035-090 CAP,E 6800-35 M VR C25 87-016-300-080 CAP, ELECT 22-100 C26 87-016-300-080 CAP, ELECT 22-100 C27 87-016-300-080 CAP, ELECT 22-100 C28 87-016-

39、300-080 CAP, ELECT 22-100 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, ELECT 22-50V C36 87-010-381-080 CAP, ELECT 330-16V C38 87-010-394-080 CAP, ELECT 220-35V C39 87-010-394-080 CAP, ELECT 220-35V C40 87-010

40、-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 87-010-380-080 CAP, ELECT 47-16V C115 87-010-405-080 CAP, ELECT 10-50V C116 87-010-405-080 CAP, ELECT 10-50V C117 87-010-196-080 CHIP CAPACITOR,0.1-25 C160 87

41、-010-196-080 CHIP CAPACITOR,0.1-25 C161 87-012-280-080 C-CAP,U 3300P-50 KB C162 87-012-280-080 C-CAP,U 3300P-50 KB 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 87-012-280-080 C-CAP,U 3300P-50

42、KB C176 87-012-280-080 C-CAP,U 3300P-50 KB 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

43、CAPACITOR,0.1-25 C309 87-010-196-080 C-CAP,S 0.1-25 ZF C310 87-010-196-080 CHIP CAPACITOR,0.1-25 C311 87-010-198-080 CAP, CHIP 0.022 C312 87-010-198-080 CAP, CHIP 0.022 C313 87-010-178-080 C-CAP,S 1000P-50KB C314 87-010-178-080 C-CAP,S 1000P-50KB C315 87-010-178-080 C-CAP,S 1000P-50KB C316 87-010-17

44、8-080 C-CAP,S 1000P-50KB C321 87-012-142-080 CAP, S 0.33-16 C322 87-012-142-080 CAP, S 0.33-16 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 4.7-50V C332 87-010-196-080 CHIP CAPACITOR,0.1-25 C335 87-0

45、10-401-080 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 470P C354 87-010-175-080 CAP 560PRadioFans.CN 收音机爱 好者资料库

46、 7 DESCRIPTIONREF. NO.KANRINO.PART NO.DESCRIPTIONREF. NO.KANRINO.PART NO. C355 87-010-178-080 CHIP CAP 1000P 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

47、B C370 87-010-196-080 CHIP CAPACITOR,0.1-25 C373 87-A11-177-080 C-CAP,S 0.15-16 K B C374 87-A11-177-080 C-CAP,S 0.15-16 K B C378 87-010-196-080 CHIP CAPACITOR,0.1-25 C379 87-010-406-080 CAP, ELECT 22-50 C380 87-010-406-080 CAP, ELECT 22-50 C386 87-010-196-080 CHIP CAPACITOR,0.1-25 C388 87-012-156-08

48、0 C-CAP,S 220P-50 CH C391 87-010-319-080 C-CAP,S 56P-50 CH C392 87-010-319-080 C-CAP,S 56P-50 CH C393 87-010-319-080 C-CAP,S 56P-50 CH C394 87-010-319-080 C-CAP,S 56P-50 CH C395 87-010-197-080 C-CAP,S 0.01-25 K B C401 87-010-176-080 C-CAP,S 680P-50 SL C402 87-010-176-080 C-CAP,S 680P-50 SL C403 87-0

49、10-958-080 CHIP -CAP,S 0.01-25BJ C404 87-010-958-080 CHIP -CAP,S 0.01-25BJ C405 87-010-958-080 CHIP -CAP,S 0.01-25BJ C406 87-010-958-080 CHIP -CAP,S 0.01-25BJ C407 87-010-401-080 CAP, ELECT 1-50V C408 87-010-401-080 CAP, ELECT 1-50V C409 87-010-196-080 CHIP CAPACITOR,0.1-25 C410 87-010-384-080 CAP,

50、ELECT 100-25V C411 87-010-402-080 CAP, ELECT 2.2-50V C412 87-010-402-080 CAP, ELECT 2.2-50V C413 87-010-401-080 CAP, ELECT 1-50V C414 87-010-401-080 CAP, ELECT 1-50V C415 87-010-546-080 CAP, ELECT 0.33-50V C416 87-010-546-080 CAP, ELECT 0.33-50V C417 87-010-221-080 CAP, ELECT 470-10V C418 87-A10-891