Aiwa-ZL100-cs-sm维修电路原理图.pdf
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1、SERVICE MANUALDATACOMPACT DISC STEREOCASSETTE RECEIVERBASIC TAPE MECHANISM : ZZM-2 PR1NMBASIC CD MECHANISM : AZG-1 ZD8RN1DMZ-L100EZ,KS/M Code No. 09-004-422-5R2REVISION If requiring information about the CD mechanism, see Service Manual of AZG-1,(S/M Code No. 09-001-335-3N6). This Service Manual is
2、the “Revision Publishing” and replaces “Simple Manual”Z-L100 (EZ,K), (S/M Code No. 09-002-422-5T2).Z-L100SPEAKERSYSTEMCDCASSEIVERSX-ZL100CX-ZL100(TYPE : EZ) RC-ZAS02STEREOTURNTABLECX-ZL100(TYPE : K)REMOTE CONTROLLER-PX-E860 If requiring information about the Stereo Turntable, see Service Manual of P
3、X-E860 (K), (S/M Code No. 09-993-322-0R4).RadioFans.CN 收音机爱 好者资料库 2 Tuning 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 outputRated : 30 W + 30 W(1 kHz, T.H.D. 1 %, 6 ohms)Reference : 37 W + 37 W (6 ohms,T.H.D. 10 %, 1 kHz)DIN MUSIC POWER :54 W + 54 WTotal harmonic distortion0.1 % (6 W, 1 kHz, 6 ohms, DINAUDIO)InputsVIDEO / AUX / PHONO IN : 500 mVO
5、utputsCD DIGITAL OUT (OPTICAL)SPEAKERS : accept speakers of 6ohms or morePHONES (stereo jack): acceptsheadphones of 32 ohms or moreLaserSemiconductor laser ( = 780 nm)D-A converter1 bit dualSignal-to-noise ratio85 dB (1 kHz, 0 dB)Harmonic distortion0.05 % (1 kHz, 0 dB)Wow and flutterUnmeasurableTrac
6、k format4 tracks, 2 channels stereoFrequency response50 Hz 16000 HzRecording systemAC biasHeadsDeck 1 : Recording / Playback / erase head x 1Deck 2 : Playback head x 1SPECIFICATIONSCabinet type3 way, bass reflexSpeakersWoofer :130 mm (51/8 in.) cone typeTweeter:60 mm (23/8 in.) cone typeSuper tweete
7、r:20 mm (13/16 in.) ceramic typeImpedance6 ohmsOutput sound pressure level 87 dB/W/mDimensions260 x 496 x 220 mm(W x H x D)(101/4 x 195/8 x 83/4 in.)Weight3.7 kg (8 lbs 3 oz.)Power requirements230 V AC, 50 HzPower consumption70 WDimensions of main unit360 x 393 x 342 mm(W x H x D)(141/4 x 151/2 x 13
8、1/2 in.)Weight of main unit7.7 kg (17 lbs)Standby power consumptionIf the power-economizing mode is OFF : 17 WIf the power-economizing mode is AUTO or ON : 0.9 W 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 1
9、LASER LAITEKLASS 1LASER APPARATThis set employs laser. Therefore, 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
10、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 avoidexposure to beam.sAdvarsel: Usynlig laserstling ved bning,nr sikkerhedsafbrydere er ude af funktion.Undg udsttelse for strling.VAROITUS!Lait
11、een Kyttminen muulla kuin tss kyttohjeessamainitulla tavalla saataa 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 las
12、erklass 1.PROTECTION OF EYES FROM LASER BEAM DURING SERVICINGCAUTIONUse 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 u
13、ne dangereuseexposition aux radiations.ADVARSELUsynlig laserstling 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 Opti
14、cal block(KSM-880CAB)Body or clothes electrostatic potential couldruin 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.solderPICK-UP Assy P.C.BRadioFans.CN 收音机爱 好者资料库 4 NOTE
15、 ON BEFORE STARTING REPAIRCharging voltage (V)Discharging Rated power (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
16、of the charging capacitors on schematic diagram before starting the 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.
17、Regarding the HOLD terminal of the MICROCOMPUTERWhen 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 voltage of the HOLDterminal before
18、 exchange.When the MICROCOMPUTER is not defective, the HOLD terminal 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 MICROCOMPUTER1Turn on the AC main p
19、ower.2Confirm that the main power is turned on and the HOLD terminal of the MICROCOMPUTER keeps the “H” level or not.3When 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
20、 capacitor of power supply blockWhen repair is going 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, secondar
21、y defectcan occur.In order to prevent the secondary trouble, perform the following measures before starting repair work.Discharge procedure1Remove the AC power cord.2Connect a discharging resistor at an end of lead wire thathas clips at both ends. Connect the other end of the leadwire to metal chass
22、is.3Contact the other end of the discharging resistor to thepositive (+) side (+VH) of C101. (For two seconds)4Contact the same end of the discharging resistor as step 3to the negative (-) side (-VH) of C102 in the same way.(For two seconds)5Check that voltage across C101 and C102 has decreasedto 1
23、V or less using a multimeter 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 resetThe
24、re are cases that the machine does not work correctly because the MICROCOMPUTER 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 MICROC
25、OMPUTER is defective and toexchange the MICROCOMPUTER. In such a case, perform the forced-reset by the following procedure and check good or nogood of the MICROCOMPUTER.1Remove the AC power cord.2Short both ends of the electrolytic capacitor C113 that is connected to VDD of the MICROCOMPUTER with tw
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