Aiwa-NSXR51-cs-sm维修电路原理图.pdf

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Aiwa-NSXR51-cs-sm维修电路原理图.pdf

SERVICE MANUALDATACOMPACT DISCSTEREO SYSTEMBASIC TAPE MECHANISM : ZZM-3 PR3NMBASIC CD MECHANISM : BZG-5 ZD3GNMNSX-R50NSX-R51KEZS/M Code No. 09-01A-449-7N1 If requiring information about the CD mechanism, see Service Manual of BZG-5, (S/M Code No. 09-00C-353-3N6).SPEAKERSYSTEMCX-NR50RC-CAS01CDCASSEIVERREMOTECONTROLLERSX-NR50NSX-R50NSX-R51CX-NR51RadioFans.CN 收音机爱好者资料库? ?!?#?$?%?&?&?(?&?$?%?&?&?&?$?%?)*!?+?&?(?&?+?)*!?,? !? ?-?.?+?/?0?+?/?!?1?2?31?&?*?45?+?$-?.?/?0?/?!?1?2?31?&?*?45?+?%+$67.?45?894:?;/6-.?/?0?/? ? ?#?$? ? ?3?%?/1?&?1?!?1?45?=8?4$?)4?6.?!)%?9;6=?6-9.?!?!?;?6:?.?*?#?A?&?1?B?&(?-?9?!?#? C?!$(?# ?#?.? .? ? ? ?&?1? $? ?#?$? ? ?3?&?1? $/? !?,?%?)?=:1? !?# ? ?/? !?# ? ?$? $?/?6:?!?.?/?6:?$?#?!?(? ?B?B?(?B?%+?B?!?0?+?&?RadioFans.CN 收音机爱好者资料库? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ?!?!#$%?&#&?%$%?()!?*(%?#&+&?*&#,-./$+!?!%#()!?#!0!)!?+!#!?!)#+#!?*&# #&/&%#(10!)+(+)(-*!%? 2? )#&0&)$? %&*?&#,?&)$)!+$1+&#$)$? !33!1!#$%? !%0&%4+? 35? !%!#? +&#? &%? 0!4? +-?+3$?6?$1!+? ? 4$%!? 71(*+!%0+%8? *!%? !%0&%4!1$%(#+&#!+? 6,1? -+%)%8? )!+$1+#15)%8? +-? ,0$1+*14$181&%+$%?6,1?)!+$1*)!+?2?+$?-6?-%#1-)+?-1?!4/(+#?$%#+?-1?3$16-1?!%?$?-6?31-?$ 4(1$+? -#.$1? #.!%? #.-+$? +3$?6$4? .$1%? ?!? 1$+()#? %.!9!14-(+?1!4!#-%?$:3-+(1$?;(#)+!#-%? 4$? ?-?!%4$+? 18)!8$+? -(? 31-?4(1$+!(#1$+?=($?$(:?+3?6%$1?(%$?4!%8$1$(+$:3-+#-%?!(:?1!4!#-%+?+%)8?)!+$1+#5)%8?0$4?57%8?%51?+*$1.$4+!6714$1$1(4$?!6?6(%*#-%?%485?(4+?#$)+$?6-1?+#15)%8?.+?-?3!?#?+?3)!$1?+?)!+6$4?!+?!?2?31-4(?#?.$?2?)!7$)?+?)-?!#$4?-%?#.$1$!1?$:#$1-1?2?2?2?2? ?#$ ? ? ? ? ? ? ? ?%?&?(?&?&)*?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? ?!?!?!?#?!?!?$?#!?!?!?!?!?$!?!?!?!?!?$!?!?$?!?%#!&?!?!?!?$?$?!?$!?!?(?!?!?($?!?%?!?$!?$?!?!?!?!?# ?!?%?!?# %?!?)?!?)?!?)?!?)?!?*?)?)?)?)?)?)?)?)?)?#?#?#?#?#?#?#?#?#?#?)?#?#?#?)?)?#?#?#?)?*?$?*?$?)?#?)?#?#?#?*?*?#?#?*?*?)?)?)?)?)?+!?+!?)?)?)?)?)?)?)?)?#?#?*?*?#?)?#?)?#?*?)?)?#?*?)?#?)?#RadioFans.CN 收音机爱好者资料库?*?*?)?)?)?)?#?#?#?)?*?)?*?*?)?$?)?$?)?$?)?$?)?#?)?#?)?#?)?#?)?#?)?#?+?#?#?)?#?)?#?)?$?#?#?#?#?#?#?)?#?)?#?#?#?*?*?)?)?#?)?)?)?)?)?)?*?)?)?)?)?)?#?)?)?#?)?#?)?)?#?)?)?#?)?#?#?#?)?)?)?#?)?#?*?$?#?*?)?#?)?#?)?#?)?)?)?)?)?)?*?*?#?)?#?)?*?*?$?$?*?$?!?*?*?*?*?$?*?*?)?$?%?!?)?$?%?!?)?$?%?!?)?$?%?!?*?!?*?*?*?*?*?*?!?*?)?$?%?!?$?$?)?$?%?!?)?$?)?RadioFans.CN 收音机爱好者资料库?)?*?)?*?!?*?)?)?)?#?)?#?)?#?)?)?*?#?)?)?)?*?)?)?*?*?)?#?)?!?!?)?#?#*(?!?+?+?($?%,?+?+?!?*+?+?!?*+?+?!?*+?)?%!+?!?%?$?+?!?*?+?!?*?!?*?*?$%?*?$%?$?%?$?!?*?%?$?)?*%?)?*%?)?*%?&!?&!?)?*%?&!?&!?)?*%?)?%? %? %?$?%?$?!?!?&?)? ?!?!?&?)? ?!?!?&?)? ?!?!?&?)? ?!?)?!?*?!?*?!?*?!?!?$?*?+?!?!?$?*?+?!?!?(?)?,?)?(?*?*?$?*?*?$? ?)? ?)? *?*?!? ?!?)? *?*?!? ?!?)?,?+?,?)?*?,?+?,?)?*?!?)?)?$?)?#?)?#?)?#?)?*?*?*?)?$?*?*?*?*?*?*?#?)?$?)?)?)?)?)?#?)?#?)?)?*?*?*?*?*?*?*?*?*?*?*?)?)?)?)?)?)?*?!?*?*?*?*?#?RadioFans.CN 收音机爱好者资料库?!?)?+?*?($?%?+?)?)?)?#?$?$?)?*?%?$?$?(?*?!?*?!?*?!?*?!?*?!? ?$?*#? ?$?*#? ?$?*#? ?$?*#? ?$?*#? ?$?*#? ?$?*#? ?$?*#? ?$?*#? ?$?*#? ?$?*#? ?$?*#? ?$?*#? ?$?*#? ?$?*#? ?$?*#? ?$?*#? ?$?*#? ?$?*#? ?$?*#? ?$?*#? ?$?*#? ?$?*#? ?!?!(? ?!?!(? ?!?!(?)?)?%+!$?!(?!?(?+?#?!?!? *?*?!? ?!?)?$?(?)?+?*?)?$?)?!?!?&? ?!?!?&? ?!?!?&? ?!?!?&? ? *?*?!? ?!?)?$?)?*?(?!?!?!?)?$?*?$+?(?(? ? ?!?*? ? ?!?*? ? ?!?*? ? ?!?*? ? ?!?*?8 8AResistor CodeChip Resistor Part CodingFigureValue of resistorChip resistorWattageTypeTolerance1/16W1/10W1/8W1608212532165%5%5%CJCJCJFormLWt1.60.80.4521.250.453.21.6108118128 : A : ACHIP RESISTOR PART CODE0.55Resistor CodeDimensions (mm)Symbol1/16W10055%CJ1.00.50.35104LtW!RadioFans.CN 收音机爱好者资料库?RadioFans.CN 收音机爱好者资料库 11 WIRING 1 (MAIN / HP)3231302928272625242322212019181716151413121110987654321ABCDEFGHIJKLMNOPQRSTURadioFans.CN 收音机爱好者资料库 12 SCHEMATIC DIAGRAM 1 (MAIN 1 / 2)RadioFans.CN 收音机爱好者资料库 13 SCHEMATIC DIAGRAM 2 (MAIN 2 / 2 : TUNER)RadioFans.CN 收音机爱好者资料库 14 SCHEMATIC DIAGRAM 3 (HP)RadioFans.CN 收音机爱好者资料库 15 WIRING 2 (FRONT / LED)3231302928272625242322212019181716151413121110987654321ABCDEFGHIJKLMNOPQRSTURadioFans.CN 收音机爱好者资料库 16 SCHEMATIC DIAGRAM 4 (FRONT / LED / DECK)RadioFans.CN 收音机爱好者资料库 17 WIRING 3 (PT)151413121110987654321ABCDEFGHIJKLMNOPQRSTURadioFans.CN 收音机爱好者资料库 18 SCHEMATIC DIAGRAM 5 (PT)RadioFans.CN 收音机爱好者资料库?SW5(CAM2)SW1(CAM1)SOL1SOL2SW2(CST1)SW3(REA)SW4(CST2)IC213IC113L H+R1SFR1TO FRONT C.B CN104(FC104)CN111 9 7 5 3 1 10 8 6 4 2W1M1TAPEMOTORL H+F DECK C.BRadioFans.CN 收音机爱好者资料库 20 IC BLOCK DIAGRAMRadioFans.CN 收音机爱好者资料库 21 RadioFans.CN 收音机爱好者资料库?2?RadioFans.CN 收音机爱好者资料库 23 IC DESCRIPTIONIC, PD780228-061-3BAPin NameI/ODescriptionPin No.1O-MOTORODECK MOTOR ON/OFF output.2O-SOL1ODECK1 solenoid ON/OFF output.3O-SOL2ODECK2 solenoid ON/OFF output.4O-LED_STBOSTB signal make clock and data effective.5O-MUTEOSystem MUTE ON/OFF output.6O-KSCANOSwitch SCAN timing output.7O-BIASODeck 2 BIAS ON/OFF output.8I-TM_BASEIBase input for clock.9I-FUNC_AIFunction rotary encoder input A.10I-FUNC_BIFunction rotary encoder input B.11CAM2IDeck 2 CAM STOP switch data input.12CAM1IDeck 1 CAM STOP switch data input.13AUTO2IDeck 2 AUTO STOP switch data input14AUTO1IDeck 1 AUTO STOP switch data input15CST2IDeck 2 cassette detect switch data input.16CST1IDeck 1 cassette detect switch data input.17ICInternal connection (connected to GND).18VSS0GND.19VDD0Power supply.20O-POWEROSystem power supply ON/OFF output.21I-JOG_AIDial jog rotary encoder input A22I-JOG_BIDial jog ratary encoder input B.23I-VOL_AIVolume rotary encoder input A.24I-VOL_BIVolume rotary encoder input B25I-SUBQICD SUBQ data input.26I-WRQICD interrupt signal input.27I-DRFICD focus ON detect data input.28I-RDS_CLKITuner RDS clock input. (EZ only)29I-RDS_DATAITuner RDS data input. (EZ only)30RESETSystem reset input (ON/OFF).31O-DSC/O-DATAOFunction IC / Tuner IC, data output.32O-CLK_SFTOMICON clock shift output.33I-IFCITune IF count serial data input.34I-RMCISystem remote control signal input.35I-DISHICD turntable photo sensor input A/D converter input.36I-STEREOITuner STEREO detect input.37VDD1-Power supply.38X2-4.19MHz oscillator circuit.39X1-4.19MHz oscillator circuit.40VSS1GND.41AVDDPower supply.42I-HOLDIPower failure detected input.43I-CDSWICD mecha switch A/D converter input.RadioFans.CN 收音机爱好者资料库 24 Pin NameI/ODescriptionPin No.44I-SPEANA_1IA/D input for spectrum analyser level display.45I-SPEANA_2IA/D input for spectrum analyser level display.46I-SPEANA_3IA/D input for spectrum analyser level display.47I-KEY 1IKey A/D input 1.48I-KEY 2IKey A/D input 2.49I-TU_SIGITuner signal input. (EZ only)50AVSSGND.51O-PLL_CLKOPLL IC clock enable output.52O-CD_CEOCD chip enable output.53O-CD_CLKOCD clock output.54O-CD_DATAOCD data output.55O-CLKOClock output for MAIN PWB and shift register IC.56 62P32 P26OFL segment P32 P26 output.63P25/I-REAO/IFL segment P25 output / Deck 2 side A record OK switch data input.64 70P24 P18OFL segment P24 P18 output.71P17/AM10KO/IFL segment P17 output / AM10K input to diode (not used).72P16/AMSTO/IFL segment P16 output / AMST input to diode (not used).73 P15/LW O/I FL segment P15 output / LW input to diode.74 P14/SW O/I FL segment P14 output / SW input to diode (not used).75P13/OIRTO/IFL segment P13 output / OIRT input to diode (not used).76P12/RDSO/IFL segment P12 output / RDS input to diode (EZ only).77P11/R+1O/IFL segment P11 output / R+1 input to diode (not used).78P10/DEMOO/IFL segment P10 output / DEMO input to diode (not used).79VDD2Power supply.80VLOADPower supply for FL display.81P9/ECO-OFFO/IFL segment P9 output / ECO-OFF input to diode (not used).82 89P8 P1OFL segment P8 P1 output.90 100G1 G11OFL grid G1 G11 output.RadioFans.CN 收音机爱好者资料库?SFR112G DECK C.BA MAIN C.B15RVSFWDRPH/PHA MAIN C.BPATTERN SIDETC942RLGSFR452SFR451SFR451SFR452IC80124517L942L951L802L901L902L907L905L904L94169155PARTS SIDE1423R962VTGNDTP8TP91635?RO?RadioFans.CN 收音机爱好者资料库? ? ?!? ?#? ?$?%?#?&?&? ?(?$?)?*?%?(?$?+,-? ?(?#?&?&? ?(?*?%?-? .?/?(?(?)? ?0?#?/ ?1?,?23?4? ?+,-?(?#?&?&? ?4?5?6?67?,? ? ?0?#?/ ?1?(/?(?-+6?23?7? ?#?&?&? ?8?6?( ?9?&(:?-? ? ?$?.?;? ?(?#?&?&? ?(?*?%?-? .?/?(?(?)? ?0?#?/ ?1?(?)6-?23?4? ?#?&?&? ?8?6?( ?9?&(:?,? ? ?0?#?/ ?1?(/?(?74?23?7? ?#?&?&? ?6?(?#?&?&? ?6?5?6?67?,? ? ?0?#?/ ?1?(/?(?8?7?23?7? ?#?&?&? ?6?7?( ?9(0?,? ?&(? ?!? ?#? ?$?= ?1?(? ?(?$?)?*?%? ?(?/ ?1?(? ?(?*?%?-? .?/?(?(?)? ?0?#?/ ?1?(?)6-?23?4? ?/ ?1?(? ?-)67-?23?5?,7?23?VDIGITAL MULTIMETERVTGNDHzFREQUENCY COUNTERCLOCKGNDRadioFans.CN 收音机爱好者资料库?A? ?/(&(:?#?#? ?(?9?/( ?B ? ?(?!? ?#? ?$.? ?.?#?&?*? ?( ?.?.?*?A?(?A?&(?(?A?&?0(&? ?A?%?1? ?( ? ?(? ?#? ?(:?# ?9?&(:?-? ?(/?6?9?:?&(?(/?#?&?#? ?( ?(?(?(?DUMMYSPOUT(L)AC MILLIVOLTMETERCH2CH16OUTPUTOSCILLOSCOPECH2CH1LOAD60cmSETStanderd Signal GenertaorSPOUT(R)7? ;=? ?!?(?$?.B?)? ?.?.?*?#?(?C? ? ?+?23)?( ?(? ?46?D)?(? ?23?-? ?(?+?23?4? ?&?(?( ?#?23?:?0?/( ? 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