Aiwa-XRG3-cs-sm维修电路原理图.pdf
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1、SERVICE MANUALDATACOMPACT DISCSTEREO SYSTEMBASIC TAPE MECHANISM : BZM-1 R1NMBASIC CD MECHANISM : BZG-5 ZD3NMXS-G3XS-G4XS-G5U,LH,EZ,KEZEZ,KS/M Code No. 09-013-441-5R1REVISIONSPEAKERSYSTEMCDCASSEIVERREMOTECONTROLLERXSG3(U,LH)RCBAS11CXG3SXG3RCBAS03XSG3(EZ,K)CXG3SXG3RCBAS11XSG4(EZ)CXG4SXG4RCBAS11XSG5(EZ
2、)CXG5SXG5RCBAS03XSG5(K)CXG5SXG5 This Service Manual is the Revision Publishing and replaces Simple ManualXS-G3 (U,LH,EZ,K) / XS-G4 (EZ) / XS-G5 (EZ,K), (S/M Code No. 09-012-441-5T1). If requiring information about the CD mechanisim, see Service Manual of BZG-5,(S/M Code No. 09-00C-353-3N2)RadioFans.
3、CN 收音机爱 好者资料库 2 SPECIFICATIONSTuning range87.5 MHz to 108 MHzUsable sensitivity (IHF)EZ,K: 16.8 dBfU,LH: 13.2 dBfAntenna terminal75 ohms (unbalanced)Tuning range531 kHz to 1602 kHz (9 kHz step)530 kHz to 1710 kHz (10 kHz step)Usable sensitivity350 V/mAntennaLoop antennaTuning range144 kHz to 290 kHz
4、Usable sensitivity1400 V/mAntennaLoop antennaPower outputEZ,K:Rated: 40 W + 40 W (6 ohms,T.H.D. 1 %, 1 kHz/DIN45500)Reference: 50 W + 50 W (6 ohms,T.H.D. 10 %, 1 kHz/DIN45324)EZ:DIN MUSIC POWER: 121 W + 121 WU: 60 W + 60 W (50 Hz 20 kHz,T.H.D. less than 1 %, 6 ohms)75 W + 75 W (1 kHz, T.H.D. less th
5、an10 %, 6 ohms)LH:Rated: 60 W + 60 W (6 ohms,T.H.D. 1 %, 1 kHz)Reference: 75 W + 75 W (6 ohms,T.H.D. 10 %, 1 kHz)Total harmonic distortion EZ,K:0.08 % (25 W, 1 kHz, 6 ohms, DINAUDIO)U,LH:0.08 % (30 W, 1 kHz, 6 ohms, DINAUDIO)InputsVIDEO/AUX: 500 mVLH ONLY: MIC: 1.7mV (10 kohms)OutputSPEAKERS: 6 ohms
6、 or morePHONES: 32 ohms or moreTrack format4 tracks, 2 channels stereoFrequency response50 Hz 15000 HzRecording systemAC biasHeadsRecording/playback x 1, erase 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)
7、Speaker system2 way, bass reflex (magnetic shielded)Speaker unitsWoofer: 140 mm coneTweeter: 60 mm coneImpedance6 ohmsDimensions (W x H x D)165 x 328 x 225 mmWeight3.5 kgSpeaker system2 way, bass reflex (magnetic shielded)Speaker unitsWoofer: 140 mm coneTweeter: 60 mm coneImpedance6 ohmsDimensions (
8、W x H x D)170 x 328 x 268 mmWeight3.8 kgPower requirementsEZ,K: 230 V AC, 50 HzU: 120 V AC, 60 HzLH: 120 V / 220 230 V / 240 VAC(Switchable), 50 Hz / 60 HzPower consumptionU: 65 WLH: 85 WEZ: 70 WK: 78 WPower consumption With ECO mode on: 0.6 W in standby mode U,EZ,K: With ECO mode off: 17 WLH: With
9、ECO mode off: 18 WDimensions of main unitU,EZ,K: 260 x 271.5 x 355 mm(W x H x D) (101/4 x 103/4 x 14 in.)LH: 260 x 271.5 x 364 mmDimensions (W x H x D)260 x 301 x 292 mmWeightU,EZ,K: 6.5 kg (14 lbs 5 oz)LH: 6.8 kg Design and specifications are subject to change without notice. The word BBEand the BB
10、E 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 when servicing.WARNING!WHEN SERVI
11、CING, 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 radiation whenopen and interlocks def
12、eated 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 nkymttmllelasersteilylle.VARNING!O
13、m 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 proce-dures other than those spe
14、cified 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. Undg udsttelse for strling.Thi
15、s 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 couldruin laser diode in the optical block. Be sureground body and workbench, and use care
16、 theclothes do not touch the diode.1) After the connection, remove solder shown inright figure.PICK-UP Assy PWBSolderRadioFans.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-A00-232-09
17、0Note: 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 t
18、he 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”, the MICROCOMPUTER is judged to be operating c
19、orrectly.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 abno
20、rmality 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
21、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 circuit in the power supply block, electric p
22、otential 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 procedure11
23、111Remove 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 sa
24、me 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 resistor referring to the following table.Fig-1M
25、AIN 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 MICROCOMPUTER is not reset even though the AC power
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