Aiwa-ZHT530-cs-sm维修电路原理图.pdf
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1、SERVICE MANUALDATACOMPACT DISC STEREOCASSETTE RECEIVERBASIC TAPE MECHANISM : ZZM-3 PR1NMBASIC CD MECHANISM : 6ZG-1 ZRDMZ-HT530K, EZS/M Code No. 09-004-428-1R1REVISION This Service Manual is the Revision Publishing and replaces Simple ManualZ-HT530 (K, EZ), (S/M Code No. 09-002-428-1T1). If requiring
2、 information about the CD mechanism, see Service Manual of 6ZG-1, (S/M Code No. 09-001-338-7N2). If requiring information about the Stereo Turntable, see Service Manual of PX-E860 (K), (S/M Code No. 09-993-322-0R4).ZHT530 (EZ)SPEAKERSYSTEMCDCASSEIVERSXZHT530SXCR677CXZHT530REMOTECONTROLLERZHT530 (K)R
3、CZAS10PXE860STEREO TURNTABLERadioFans.CN 收音机爱 好者资料库 2 SPECIFICATIONSTuning range87.5 MHz to 108 MHzUsable sensitivity (IHF)13.2 dBfAntenna terminals75 ohms (unbalanced)Tuning range530 kHz to 1710 kHz (10 kHz step)531 kHz to 1602 kHz (9 kHz step)Usable sensitivity350 V/mAntennaLoop antennaTuning rang
4、e144 kHz to 290 kHzUsable sensitivity1400 V/mAntennaLoop antennaPower outputFrontRated: 80 W + 80 W (6 ohms,T.H.D. 1 %, 1 kHz)Reference: 100 W + 100 W (6 ohms,T.H.D. 10 %, 1 kHz)EZ:DIN MUSIC POWER: 180 W + 180 WRear (Surround)Rated: 20 W + 20 W (8 ohms,T.H.D. 1 %, 1 kHz)Reference: 25 W + 25 W (8 ohm
5、s,T.H.D. 10 %, 1 kHz)EZ:DIN MUSIC POWER: 50 W + 50 WCentreRated: 20 W (8 ohms, T.H.D. 1 %,1 kHz)Reference: 25 W (8 ohms, T.H.D. 10 %,1 kHz)EZ:DIN MUSIC POWER: 50 WTotal harmonic distortion 0.1 % (40 W, 1 kHz, 6 ohms, DINAUDIO/Front)InputsVIDEO/AUX/PHONO: 300 mV5.1CH INPUT:FRONT: 240 mVSURROUND: 240
6、mVCENTER: 600 mVSUB WOOFER: 240 mVOutputsCD DIGITAL OUT (OPTICAL)SUB WOOFER: 1VSPEAKERS:accept speakers of 6 ohms or moreSURROUND SPEAKERS:accept speakers of 8-16 ohms or moreCENTER SPEAKERS:accept speakers of 8 ohms or morePHONES (stereo jack):accepts headphones of 32 ohms ormoreTrack format4 track
7、s, 2 channels stereoFrequency response50 Hz 12500 HzRecording systemAC biasHeadsDeck 1 : Playback head x 1Deck 2 : Recording/Playback head x 1, erase head x 1LaserSemiconductor laser ( =780 nm)D-A converter1 bit dualSignal-to-noise ratio85 dB (1 kHz, 0 dB)Harmonic distortion0.05 % (1 kHz, 0 dB)Wow a
8、nd flutterUnmeasurableCabinet type3 way, bass reflexSpeakersWoofer:220 mm cone typeTweeter:60 mm cone typeSuper tweeter:20 mm ceramic typeImpedance6 ohmsOutput sound pressure level 89 dB/W/mDimensions (W x H x D)260 x 495 x 314 mmWeight6.1 kgPower requirements230 V AC, 50 HzPower consumption210 WDim
9、ensions of main unitK: 360 x 395.3 x 385.1 mm(W x H x D)EZ: 360 x 395.3 x 402.3 mmWeight of main unitK: 11.7 kgEZ: 11.9 kg Design and specifications are subject to change without notice. Manufactured under license from Dolby Laboratories Licensing Corporation. “DOLBY”, the double-D symbol and PRO LO
10、GIC 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.RadioFans.CN 收音机爱 好者资料库 3 CLASS 1LASER PRODUCTKLASSE 1LASER PRODUKTLUOKAN 1LASER LAITEKLASS 1LASER APPARATThis set employs laser. Therefor
11、e, be sure to follow carefullythe instructions below when 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
12、 OPTICAL PICK-UP BLOCK.sCaution: Invisible laser radiation 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 sa
13、ataa altistaa kyt-tjnturvallisuusluokan 1 ylittvlle nkymttmllelasersteilylle.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 SERVICINGCA
14、UTIONUse of controls or adjustments or performance of 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 laserstl
15、ing ved bning, nr sikkerhedsafbrydereerude af funktion. 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)Body or clothes electrostatic potential coul
16、druin laser diode in the optical block. Be sureground body and workbench, and use care theclothes 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 p
17、ower (W)Parts number(C101, 102)resistor ()25-48100387-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 t
18、he discharging work.2. Check items before exchanging 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 ter
19、minal (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 voltage of the HOLDterminal before exchange.When the MICROCOMPUTER is not defective, the HOLD termi
20、nal can also go “L” when the POWER AMPLIFIER 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 HO
21、LD 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 theMICROCOMPUTER is judged to be good.1. Forced discharge of electrolytic capacitor of power supply blockWhen repair is going
22、to be attempted in the set that uses relay 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 t
23、rouble, perform the following measures before 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 discharg
24、ing resistor to thepositive (+) side (+VH) 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
25、or an oscilloscope.Select a discharging resistor 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
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