Aiwa-XRHG5MD-cs-sm维修电路原理图.pdf

SERVICE MANUALDATAMD / CD STEREO SYSTEMBASIC TAPE MECHANISM : 2ZM-3MK2 PR4NMBASIC CD MECHANISM : AZG-1 ZD8RMDMBASIC MD MECHANISM : AZG-7 DMXR-HG5MDK, EZS/M Code No. 09-004-423-9R2REVISION This Service Manual is the Revision Publishing and replaces Simple ManualXR-HG5MD (K, EZ), (S/M Code No. 09-002-423-9T2). If requiring information about the CD mechanism, see Service Manual of AZG-1 ZD8RMDM, (S/M Code No. 09-001-335-3NA). If requiring information about the MD mechanism, see Service Manual of AZG-7 DM, (S/M Code No. 09-001-338-4N2).XRHG5MDSPEAKERSYSTEMCDCASSEIVERSXWNHG5CXNHG5MD RCZAS16REMOTE CONTROLLERRadioFans.CN 收音机爱 好者资料库 2 SPECIFICATIONSTuning range87.5 MHz to 108 MHzUsable sensitivity (IHF)16.8 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 range144 kHz to 290 kHzUsable sensitivity1400 V/mAntennaLoop antennaMid-high frequency amplifierPower output*Rated: 15 W + 15 W(8 ohms, T.H.D. 1 %, 200 Hz to 20 kHz/DIN 45500)Reference: 18 W + 18 W(8 ohms, T.H.D. 10 %, 200 Hz to 20 kHz/DIN 45324)EZ:DIN MUSIC POWER: 32 W + 32 WTotal harmonic distortion0.06 % (8 W, 1 kHz, 8 ohms, DINAUDIO)Low frequency amplifierPower output*Rated: 45 W + 45 W(6 ohms, T.H.D. 1 %, 50 Hz to 200 Hz/DIN 45500)Reference : 54 W + 54 W(6 ohms, T.H.D. 10 %, 50 Hz to 200 HZ/DIN 45324)EZ:DIN MUSIC POWER: 74 W + 74 WTotal harmonic distortion0.06 % (20 W, 130 Hz, 6 ohms, DINAUDIO)* without connecting to the SURROUND SPEAKERSInputsVIDEO/AUX: 500 mVDIGITAL INOutputsSPEAKERS HIGH FREQ:accept speakers of 8 ohms or moreSPEAKERS LOW FREQ:accept speakers of 6 ohms or moreSURROUND SPEAKERS:accept speakers of 8 to 16 ohmsPHONES (stereo jack):accepts headphones of 32 ohms or moreCD DIGITAL OUT (OPTICAL) jackTrack format4 tracks, 2 channels stereoFrequency response50 Hz 15000 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 and flutterUnmeasurableScanning methodNon-contact optical scanner(Semiconductor laser application)Recording sectionMagnetic polarity modulationoverwrite systemRotation speedApprox. 400 - 900 rpm (CLV)Sampling frequency44.1 kHzNo. of channelsStereo: 2 channelsMonaural: 1 channelsA-D, D-A converter1 bitFrequency20 to 20000 Hz +0.5 - 1.5dBWow and flutterUnmeasurableCabinet type3 way, built-in subwoofer (magneticshielded type)SpeakersSubwoofer:160 mm cone typeFull range:100 mm cone typeSuper tweeter:20 mm ceramic typeImpedanceLOW FREQ.: 6 ohmsHIGH FREQ.: 8 ohmsOutput sound pressure level 87 dB/W/mDimensions (W x H x D)240 x 324 x 270 mmWeight4.8 kgPower requirements230 V AC, 50 HzPower consumptionEZ: 150 WK: 160 WPower consumption in standby modeIf the power-economizing modeis ECO OFF: 21 WIf the power-economizing modeis ECO ON or ECO AUTO: 0.9 WDimensions of main unit260 x 326.5 x 348 mm(W x H x D)Weight of main unit8.4 kg 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 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 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!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 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. 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(KMS-260B / 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.MD PICK-UP Assy P.C.B (KMS-260B)1 VEE21 TRK SolderPattern sidesolderCD PICK-UP Assy P.C.B (KSM-880CAB)RadioFans.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: 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 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 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 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 HOLD 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 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 trouble, 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 discharging 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 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 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 MICROCOMPUTER 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.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 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 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-COMPUTERMICROCOMPUTERFRONT C.BFRONT C.BVSSVDDC113*%C1131815Short with tweezers.RadioFans.CN 收音机爱 好者资料库 6 CAUTIONS WHEN ASSEMBLY1.Assembling the CAM, LOADMove the LEVER ASSY, CAM in the direction of the arrow as far as it can go.Rotate the CAM, LOAD so that its positioning hole is moved as close as possible to the shaft of the LEVER, SW H.Attach the CAM, LOAD so that it engages with the teeth of the GEAR, IDLER2.2.Assembling the PLATE ASSY, SLIDE LAlign the shaft of the PLATE ASSY, SLIDE L with the arrow-marked position of the CAM, LOAD.CAM, LOAD positioning holeShaft of LEVER, SW HCAM, LOADLEVER ASSY, CAMCAM, LOADRadioFans.CN 收音机爱 好者资料库 7 1.Remove the four screws (BVT2+3-10 W/O SLOT) of A.Remove AZG-4 in the direction of the arrow.DISASSEMBLY INSTRUCTIONSAAAA2.Remove the four screws (VTT+3-4) of B.Set the mechanism in the PLAY state.Remove the HLDR, SHIELD TOP in the direction of thearrow.HLDR, SHIELD TOPBBBBCCDDMD MECHANISMHLDR, SHIELD BOTFFCABBHEAD, OWHPLATE, SLIDE RPLATE ASSY,SLIDE LBOSSZZG-D(b)(a)(c)CAM, LOAD3.Remove the two screws (S-SCREW, MD TF) of C.Remove the two screws (S-SCREW MD T) of D.Remove the four FFCs and remove the MDMECHANISM.4.Remove the screw (VW+1.7-5) of A.Remove the HEAD, OWH.Remove the two screws (VTT+2-3) of B.Remove the PLATE ASSY, SLIDE L and the PLATE, SLIDER. in the direction of the arrow.5.Move the ZZG-D in the direction of arrow (a). Whilepushing the BOSS in the direction of arrow (b), removeit in the direction of arrow (c).6.Remove the CAM, LOAD in the direction of the arrow.Disassembly ProcedureRadioFans.CN 收音机爱 好者资料库 8 ELECTRICAL MAIN PARTS LISTDESCRIPTIONREF. NO.KANRINO.PART NO.DESCRIPTIONREF. NO.KANRINO.PART NO.IC 8A-DB8-616-010 C-IC,LC876580W-5N90 87-A21-482-010 IC,RPM6938-H 87-017-888-080 IC,NJM4558MD 87-A21-021-040 C-IC,BU2099FV 87-070-289-040 IC,BU 2092F 87-A21-031-040 C-IC,BU4551BF 87-A21-416-040 C-IC,M61500FP 87-A21-023-040 C-IC,BA3835F 87-070-127-110 IC,LC72131 D 87-A20-440-040 C-IC,BU1920FS 87-A20-913-010 IC,LA1837NL 87-020-454-010 IC,DN 6851 87-A21-419-040 C-IC,NJM14558MD-TE2TRANSISTOR 87-026-245-080 TR,DTC114ES 87-026-609-080 TR,KTA1266GR 87-A30-198-080 TR,KTC3199GR 89-213-702-010 TR,2SB1370 (1.8W) 87-026-610-080 TR,KTC3198GR 87-A30-076-080 C-TR,2SC3052F 87-A30-075-080 C-TR,2SA1235F 87-A30-234-080 TR,CSC4115BC 87-A30-073-080 C-TR,RT1N 141C 87-A30-186-010 FET,2SK3053 87-A30-074-080 C-TR,RT1P 141C 87-026-210-080 CHIP-TR,DTC144EK 87-A30-190-080 TR,CC5551 87-A30-137-010 TR,2SD2494 87-A30-138-010 TR,2SB1625 87-A30-106-070 C-TR,CMBT5551 87-A30-107-070 C-TR,CMBT5401 87-A30-087-080 C-FET,2SK2158 87-A30-071-080 C-TR,RT1N 144C 87-A30-256-010 TR,2SD1933 87-A30-255-010 TR,2SB1342 87-A30-329-080 TR,CD1585BC 87-A30-318-080 TR,CSA952K 87-A30-091-080 FET,2SJ460 87-A30-090-080 FET,2SK2541 87-A30-104-080 C-TR,RT1N 441C 87-A30-085-040 C-TR,CSA1362GR 87-A30-086-070 C-TR,CSD1306E 89-327-143-080 C-TR,2SC2714 (0.1W) 87-A30-072-080 C-TR,RT1P 144C 87-026-463-080 TR,2SA933S 89-503-602-080 C-FET,2SK360EDIODE 87-A40-736-080 DIODE,1N4148M(SEM) 87-A40-547-090 DIODE,D5SBA20 87-070-274-080 DIODE,1N4003 SEM 87-A40-777-080 ZENER,UZ30BSB 87-A40-548-090 DIODE,D3SBA20 87-A40-764-080 ZENER,UZ10BSC 87-A40-270-080 C-DIODE,MC2838 87-A40-269-080 C-DIODE,MC2836 87-A40-749-080 ZENER,UZ5.6BSB 87-A40-393-090 DIODE,1N5402GW(F20) 87-A40-767-080 ZENER,UZ12BSC 87-A40-766-080 ZENER,UZ11BSC 87-A40-752-080 ZENER,UZ6.2BSC 87-A40-739-080 ZENER,UZ2.7BSA 87-A40-802-080 ZENER,UZ5.1BSC 87-017-149-080 ZENER,HZS6A2L 87-A40-335-080 ZENER,MTZJ11C T-72MAIN C.B C1 87-012-369-080 C-CAP,S 0.047-50F C2 87-012-369-080 C-CAP,S 0.047-50F C3 87-012-368-080 C-CAP,S 0.1-50 F C4 87-012-368-080 C-CAP,S 0.1-50 F C5 87-012-368-080 C-CAP,S 0.1-50 F C6 87-012-368-080 C-CAP,S 0.1-50 F C9 87-016-658-000 CAP,E 4700-35 M SMG C10 87-A10-520-000 CAP,E 3300-35 M SMG C11 87-012-368-080 C-CAP,S 0.1-50 F C12 87-012-368-080 C-CAP,S 0.1-50 F C13 87-012-368-080 C-CAP,S 0.1-50 F C21 87-010-385-080 CAP, ELECT 220-25V C22 87-010-385-080 CAP, ELECT 220-25V C23 87-010-247-080 CAP, ELECT 100-50V C24 87-010-247-080 CAP, ELECT 100-50V C25 87-010-430-080 CAP, ELECT 100-63 C26 87-010-263-080 CAP, ELECT 100-10V C27 87-010-197-080 CAP, CHIP 0.01 DM C29 87-010-247-080 CAP, ELECT 100-50V C30 87-010-381-080 CAP, ELECT 330-16V C31 87-010-235-080 CAP,E 470-16 SME C32 87-010-405-080 CAP, ELECT 10-50V C33 87-010-405-080 CAP, ELECT 10-50V C34 87-012-368-080 C-CAP,S 0.1-50 F C35 87-010-198-080 CAP, CHIP 0.022 C36 87-010-198-080 CAP, CHIP 0.022 C40 87-010-112-080 CAP, ELECT 100-16V C50 87-010-182-080 C-CAP,S 2200P-50 B C51 87-010-180-080 C-CER 1500P C61 87-010-260-080 CAP, ELECT 47-25V C62 87-010-403-080 CAP, ELECT 3.3-50V C91 87-010-401-080 CAP, ELECT 1-50V C92 87-010-374-080 CAP, ELECT 47-10V C93 87-010-380-080 CAP, ELECT 47-16V C101 87-010-178-080 CHIP CAP 1000P C102 87-010-178-080 CHIP CAP 1000P C103 87-010-402-080 CAP, ELECT 2.2-50V C104 87-010-402-080 CAP, ELECT 2.2-50V C107 87-010-406-080 CAP, ELECT 22-50V C108 87-010-406-080 CAP, ELECT 22-50V C109 87-010-322-080 C-CAP,S 100P-50 CH C110 87-010-322-080 C-CAP,S 100P-50 CH C111 87-010-260-080 CAP, ELECT 47-25V C112 87-010-260-080 CAP, ELECT 47-25V C113 87-A10-946-080 C-CAP,S 220P-100 J CH C114 87-A10-946-080 C-CAP,S 220P-100 J CH C117 87-010-400-080 CAP, ELECT 0.47-50V C118 87-010-400-080 CAP, ELECT 0.47-50V C121 87-010-178-080 CHIP CAP 1000P C122 87-010-178-080 CHIP CAP 1000P C123 87-010-176-080 C-CAP,S 680P-50 SL C124 87-010-176-080 C-CAP,S 680P-50 SL C125 87-012-368-080 C-CAP,S 0.1-50 F C126 87-012-368-080 C-CAP,S 0.1-50 F C127 87-012-368-080 C-CAP,S 0.1-50 F C128 87-012-368-080 C-CAP,S 0.1-50 F C129 87-010-191-080 C-CAP,S 0.015-50 F C130 87-010-191-080 C-CAP,S 0.015-50 F C131 87-010-197-080 CAP, CHIP 0.01 DM C132 87-010-197-080 CAP, CHIP 0.01 DM C133 87-010-197-080 CAP, CHIP 0.01 DM C140 87-012-141-080 C-CAP,S 0.22-16 ZF C203 87-010-178-080 C-CAP,S 1000P-50 KB C204 87-010-178-080 C-CAP,S 1000P-50 KB C2