Aiwa-NSXSZ17-cs-sm维修电路原理图.pdf
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1、SERVICE MANUALDATACOMPACT DISCSTEREO SYSTEMBASIC TAPE MECHANISM : ZZM-2 PR1NM(10/12/17)BASIC TAPE MECHANISM : ZZM-2 YPR1NM(11)BASIC CD MECHANISM : AZG-1 ZA3RNDM(10/12/17)BASIC CD MECHANISM : AZG-1 YZA3RNDM(11)NSX-SZ10NSX-SZ11NSX-SZ12NSX-SZ17EZ K HRLHEZEZS/M Code No. 09-003-424-8R2REVISION This Servi
2、ce Manual is the Revision Publishing and replaces Simple Manual (S/M Code No. 09-003-424-8T1). If requiring information about the CD mechanism, see Service Manual of AZG-1,(S/M Code No. 09-001-335-3NC).NSXSZ10(EZ/K)SYSTEMCDCASSEIVERREMOTE CONTROLLERCXNSZ10SPEAKERSXNSZ10NSXSZ10(HR)RCZAS02CXNSZ10SXNSZ
3、12NSXSZ11(LH)CXNSZ11SXNSZ15NSXSZ12(EZ)CXNSZ12SXNSZ12NSXSZ17(EZ)RCZAS17CXNSZ17SXNSZ10RadioFans.CN 收音机爱 好者资料库2TABLE OF CONTENTSSPECIFICATIONS . 3, 4PROTECTION OF EYES FROM LASER BEAM DURING SERVICING/Precaution to replace Optical block. 5NOTE ON BEFORE STARTING REPAIR . 6, 7ELECTRICAL MAIN PARTS LIST
4、. 8-13TRANSISTOR ILLUSTRATION . 14WIRING-1 (MAIN: K, EZ) . 15, 16SCHEMATIC DIAGRAM-1 (MAIN 1/2: K, EZ). 17, 18SCHEMATIC DIAGRAM-2 (MAIN 2/2: K, EZ). 19, 20WIRING-2 (MAIN: HR) . 21, 22SCHEMATIC DIAGRAM-3 (MAIN 1/2: HR) . 23, 24SCHEMATIC DIAGRAM-4 (MAIN 2/2: HR) . 25, 26WIRING-3 (MAIN: LH). 27, 28SCHE
5、MATIC DIAGRAM-5 (MAIN 1/2: LH) . 29, 30SCHEMATIC DIAGRAM-6 (MAIN 2/2: LH) . 31, 32WIRING-4 (FRONT). 33, 34SCHEMATIC DIAGRAM-7 (FRONT) . 35, 36WIRING-5 (PT: K, EZ). 37SCHEMATIC DIAGRAM-8 (PT: K, EZ) . 38WIRING-6 (PT: HR) . 39SCHEMATIC DIAGRAM-9 (PT: HR). 40WIRING-7 (PT: LH) . 41SCHEMATIC DIAGRAM-10 (
6、PT: LH) . 42WIRING-8 (DECK) . 43FL (10-BT-224GNK) GRID ASSIGNMENT/ANODE CONNECTION . 44, 45IC BLOCK DIAGRAM. 46, 47ELECTRICAL ADJUSTMENT-1 (K, EZ) . 48, 49ELECTRICAL ADJUSTMENT-2 (HR) . 50, 51ELECTRICAL ADJUSTMENT-3 (LH). 52, 53IC DESCRIPTION . 54, 55MECHANICAL PARTS LIST 1/1 . 56MECHANICAL EXPLODED
7、 VIEW 1/1. 57, 58TAPE MECHANISM EXPLODED VIEW 1/1 (ZZM-2 PR1NM/PR1NO/YPR1NM) . 59, 60TAPE MECHANISM PARTS LIST 1/1 (ZZM-2 PR1NM/PR1NO/YPR1NM) . 61SPEAKER DISASSEMBLY INSTRUCTIONS. 62SPEAKER PARTS LIST 1/1. 63ACCESSORIES/PACKAGE LIST . 63RadioFans.CN 收音机爱 好者资料库3SPECIFICATIONSK, EZ MODELSHR MODELDesig
8、n and specifications are subject to change withoutnotice.Design and specifications are subject to change withoutnotice.RadioFans.CN 收音机爱 好者资料库4LH MODELDesign and specifications are subject to change without notice.RadioFans.CN 收音机爱 好者资料库5PROTECTION OF EYES FROM LASER BEAM DURING SERVICINGVAROITUS!La
9、iteen Kyttminen muulla kuin tss kyttohjeessa mainit-ulla tavalla saattaa altistaa kyt-tjn turvallisuusluokan 1 ylit-tvlle nkymttmlle lasersteilylle.VARNING!Om apparaten anvnds p annat stt n vad som specificeras idenna bruksanvising, kan anvndaren utsttas fr osynlinglaserstrlning, som verskrider grns
10、en fr laserklass 1.Caution: Invisible laser radiation whenopen and interlocks defeated avoid expo-sure to beam.Advarsel:Usynling laserstling ved bning,nr sikkerhedsafbrydere er ude af funktion.Undg udsttelse for strling.CAUTIONUse of controls or adjustments or performance of proceduresother than tho
11、se specified herein may result in hazardousradiation exposure.ATTENTIONLutilisation de commandes, rglages ou procdures autres queceux spcifis peut entraner une dangereuse exposition auxradiations.ADVARSEL!Usynlig laserstling ved bning, nr sikkerhedsafbrydereer udeaf funktion. Undg udsttelse for strl
12、ing.This Compact Disc player is classified as a CLASS 1 LASERproduct.The CLASS 1 LASER PRODUCT label is located on the rearexterior.This set employs laser. Therefore, be sure to follow carefully theinstructions below when servicing.WARNING!WHEN SERVICING, DO NOT APPROACH THE LASER EXITWITH THE EYE T
13、OO CLOSELY. IN CASE IT IS NECESSARY TOCONFIRM LASER BEAM EMISSION. BE SURE TO OBSERVEFROM A DISTANCE OF MORE THAN 30cm FROM THESURFACE OF THE OBJECTIVE LENS ON THE OPTICALPICK-UP BLOCK.CLASS 1KLASSE 1LUOKAN 1KLASS 1LASER PRODUCTLASER PRODUKTLASER LAITELASER APPARATPrecaution to replace Optical block
14、1) After the connection, remove solder shown inthe figure below.Body or clothes electrostatic potential could ruinlaser diode in the optical block. Be sure groundbody and workbench, and use care the clothesdo not touch the diode.SolderZA8 MODELZA3/ZA4 MODEL (KSS-213F)RadioFans.CN 收音机爱 好者资料库6NOTE ON
15、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 t
16、he 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. Rega
17、rding 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 exc
18、hange.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 power
19、.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 cap
20、acitor 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 de
21、fectcan 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 chassis.3
22、Contact 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 V or
23、 less using a multimeter or an oscilloscope.Select a discharging resistor referring to the following table.Fig-1MAIN C.BD101C101C1022234Fig-2-1MICROCOMPUTERFRONT C.BMAIN C.BOVER LOAD DETDC DETQ110POWER AMPPOWER AMPPOWER SUPPLYHOLDHOLD SW(AC DETPIN101 CON6011?2?*?1?2?*?In some models, it is PIN (.PIN
24、 number is different depending upon microprocessor.RadioFans.CN 收音机爱 好者资料库7In 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 rese
25、t 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-r
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