Aiwa-NSXRV25-cs-sm 电路图 维修手册.pdf

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1、SERVICE MANUAL DATA NSX-RV25 NSX-RV28 HR(S) HR(S) CD STEREO SYSTEM BASIC TAPE MECHANISM : CMAT6Z2(1+1)ALPS BASIC CD MECHANISM : BZG-2 MVSD5GNM S/M Code No. 09-024-360-0R1 REVISION SYSTEM NSX-RV25 NSX-RV28 CD CASSEIVER CX-SNRV25 CX-SNRV28 SPEAKER SX-SNR20 SX-SNR20 REMOTE CONTROLLER RC-CAS13(VS) SPEAK

2、ER SX-SNR161 This Service Manual is the “Revision Publishing” and replaces “Simple Manual” NSX-RV25, RV28 (RH) (S/MCode 09-024-360-0T1). If requiring information about the CD mechanism, see Service Manual of BZG-2 (S/M Code No. 09-023-353-2NC). RadioFans.CN 收音机爱 好者资料库 -2- TABLE OF CONTENTS -1/1 SPEC

3、IFICATIONS.3 PROTECTION OF EYES FROM LASER BEAM DURING SERVICING.4 NOTE ON BEFORE STARTING REPAIR.5 ACCESSORIES PARTS LIST .7 ELECTRICAL PARTS LIST.8-23 TRANSISTOR ILLUSTRATION .24 SCHEMATIC DIAGRAM-1/6 (MAIN 1/2) .25 SCHEMATIC DIAGRAM-2/6 (MAIN 2/2 ) .26 WIRING-1/5 (MAIN) .27 SCHEMATIC DIAGRAM-3/6

4、(FRONT) .28 WIRING-2/5 (FRONT) .29 SCHEMATIC DIAGRAM-4/6(PT) .30 WIRING-3/5 (PT).31 SCHEMATIC DIAGRAM-5/6 (VM) .32 SCHEMATIC DIAGRAM-6/6 (HP) .33 WIRING-4/5 (VM/HP).34 WIRING-5/5 (DECK) .35 FL (HAU-11MM42T).36 ELECTRICAL ADJUSTMENT .37-42 CD TEST MODE.43 IC BLOCK DIAGRAM . 44, 45 IC DESCRIPTION . 46

5、, 47 MECHANICAL EXPLODED VIEW-1/1 .48 MECHANICAL PARTS LIST . 49, 50 COLOR NAME TABLE.51 TAPE MECHANISM EXPLODED VIEW (CMAT6Z(1+1)ALPS) .52 TAPE MECHANISM PARTS LIST (CMAT6Z(1+1)ALPS).53 SPEAKER DISASSEMBLY INSTRUCTIONS.54 SPEAKER PARTS LIST (SX-SNR20).55 SPEAKER PARTS LIST (SX-SR160) .56 OTHERS LIS

6、T.57 RadioFans.CN 收音机爱 好者资料库 -3- SPECIFICATIONS -1/1 Design and specifications are subject to change without notice. RadioFans.CN 收音机爱 好者资料库 -4- PROTECTION OF EYES FROM LASER BEAM DURING SERVICING-1/1 VAROITUS! Laiteen Kyttminen muulla kuin tss kyttohjeessa mainit- ulla tavalla saattaa altistaa kyt-

7、tjn turvallisuusluokan 1 ylit- tvlle nkymttmlle lasersteilylle. VARNING! Om apparaten anvnds p annat stt n vad som specificeras i denna bruksanvising, kan anvndaren utsttas fr osynling laserstrlning, som verskrider grnsen fr laserklass 1. Caution: Invisible laser radiation when open and interlocks d

8、efeated avoid expo- sure to beam. Advarsel:Usynling laserstling ved bning, nr sikkerhedsafbrydere er ude af funktion. Undg udsttelse for strling. CAUTION Use of controls or adjustments or performance of procedures other than those specified herein may result in hazardous radiation exposure. ATTENTIO

9、N Lutilisation de commandes, rglages ou procdures autres que ceux spcifis peut entraner une dangereuse exposition aux radiations. ADVARSEL! Usynlig laserstling ved bning, nr sikkerhedsafbrydereer ude af funktion. Undg udsttelse for strling. This Compact Disc player is classified as a CLASS 1 LASER p

10、roduct. The CLASS 1 LASER PRODUCT label is located on the rear exterior. This set employs laser. Therefore, be sure to follow carefully the instructions below when servicing. WARNING! WHEN SERVICING, DO NOT APPROACH THE LASER EXIT WITH THE EYE TOO CLOSELY. IN CASE IT IS NECESSARY TO CONFIRM LASER BE

11、AM EMISSION. BE SURE TO OBSERVE FROM A DISTANCE OF MORE THAN 30cm FROM THE SURFACE OF THE OBJECTIVE LENS ON THE OPTICAL PICK-UP BLOCK. CLASS 1 KLASSE 1 LUOKAN 1 KLASS 1 LASER PRODUCT LASER PRODUKT LASER LAITE LASER APPARAT Precaution to replace Optical block (BZG-2) (KSM-213RSCM) 1) After the connec

12、tion, remove solder shown in the right figure. Body or clothes electrostatic potential could ruin laser diode in the optical block. Be sure ground body and workbench, and use care the clothes do not touch the diode. Solder -5- Charging voltage (V)Discharging Rated power (W)Parts number (C101, 102)re

13、sistor ( ) 25-48100387-A00-247-090 49-140220587-A00-232-090 Note: The reference numbers (C101, C102) of the electrolytic capacitors can change depending on the models. Be sure to check the reference numbers of the charging capacitors on schematic diagram before starting the discharging work. 2. Chec

14、k items before exchanging the MICROCOMPUTER Be sure to check the following items before exchanging the MICROCOMPUTER. Exchange the MICROCOMPUTER after confirming that the MICROCOMPUTER is surely defective. 2-1. Regarding the HOLD terminal of the MICROCOMPUTER When the HOLD terminal (INPUT) of the MI

15、CROCOMPUTER 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 HOLD terminal before exchange. When the MICROCOMPUTER is not defective, the HOLD terminal can also go L when

16、 the POWER AMPLIFIER has any abnormalities 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 MICROCOMPUTER Turn on the AC main power. Confirm that the main power is turned on and the HOLD terminal of the MICROCOMPUTE

17、R keeps the H level or not. When the HOLD terminal is L level, the abnormality detection circuit is judged to be working correctly and the MICROCOMPUTER is judged to be good. 1. Forced discharge of electrolytic capacitor of power supply block When repair is going to be attempted in the set that uses

18、 relay circuit in the power supply block, electric potential is kept charged across the electrolytic capacitors (C101, 102) even though AC power cord is removed. If repair is attempted in this condition, secondary defect can occur. In order to prevent the secondary trouble, perform the following mea

19、sures before starting repair work. Discharge procedure Remove the AC power cord. Connect a discharging resistor at an end of lead wire that has clips at both ends. Connect the other end of the lead wire to metal chassis. Contact the other end of the discharging resistor to the positive (+) side (+VH

20、) of C101. (For two seconds) Contact the same end of the discharging resistor as step to the negative (-) side (-VH) of C102 in the same way. (For two seconds) Check that voltage across C101 and C102 has decreased to 1 V or less using a multimeter or an oscilloscope. Select a discharging resistor re

21、ferring to the following table.Fig-1 MAIN C.B D101 C101C102 NOTE ON BEFORE STARTING REPAIR -1/2 -6- In such a case, check also if the POWER AMPLIFIER circuit or power supply circuit has any abnormalities or not. 2-2. Regarding reset There are cases that the machine does not work correctly because th

22、e MICROCOMPUTER is not reset even though the AC power cord 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 to exchange the MICROCOMPUTER. In suc

23、h a case, perform the forced-reset by the following procedure and check good or no good of the MICROCOMPUTER. Remove the AC power cord. Short both ends of the electrolytic capacitor C113 that is connected to VDD of the MICROCOMPUTER with tweezers. Connect the AC power cord again. If the MICROCOMPUTE

24、R returns to the normal operation, the MICROCOMPUTER is good. Note: The reference number or MICROCOMPUTER pin number of transistor (Q110) and electrolytic capacitor (C113) can change depending on the models. Be sure to check the reference numbers on schematic diagram before starting the discharging

25、work. 2-3. Confirmation of soldering state of MICROCOMPUTER Check the soldering state of the MICROCOMPUTER in addition to the above described procedures. Be sure to exchange the MICROCOMPUTER after surely confirming that the trouble is not caused by poor soldering but the MICROCOMPUTER itself. Fig-2

26、-2 MICRO- COMPUTER MICROCOMPUTER FRONT C.B FRONT C.B VSS VDD C113 C113 18 15 Short with tweezers. NOTE ON BEFORE STARTING REPAIR -2/2 != ! SAFTY PARTS C= Components marked All components used on this model at the production line are shown in this service manual. However, please note that not all com

27、ponents will be available as spare parts for after-sales service. Components marked S and O are designated as spare parts for service and will be stocked at the spare parts centers. Components marked X and R are not designated as spare parts for after sales service, and will not be stocked at the sp

28、are parts centers. UNIT-NAME ! C REF-NO PARTS-NO PARTS-NAME SUFFIX&MODEL -7- ACCESSORIES PARTS LIST -1/1 CX-SNRV25 CX-SNRV28 HR7SM HRSM O AS1001 87-006-226-010 ANT,LOOP AM a b O AS1002 87-A80-167-010 CORD,PIN 1PY 150CM a b O AS1003 87-A90-119-010 ANT,WIRE SW(5M) a b O AS1004 87-A90-173-010 F-BEAD,9-

29、20-21 ZCAT2017-0930-M a b X AS1005 87-A90-230-010 CABLE TIE,CV100(N) a b ! O AS1006 87-A91-017-010 PLUG,CONVERSION JT-0476 . b O AS1007 87-A92-345-010 ANT,WIRE FM(SEMI-ST) a b O AS1008 8C-NH8-702-010 RC UNIT,RC-CAS13(VS) a b X AS1009 87-B50-079-010 LIST,FACILITY(B)-0007 a b O AS1010 8C-NH9-911-110 I

30、B,HR(ECAIT)M RV25/RV28 a b != ! SAFTY PARTS C= Components marked All components used on this model at the production line are shown in this service manual. However, please note that not all components will be available as spare parts for after-sales service. Components marked S and O are designated

31、as spare parts for service and will be stocked at the spare parts centers. Components marked X and R are not designated as spare parts for after sales service, and will not be stocked at the spare parts centers. UNIT-NAME ! C REF-NO PARTS-NO PARTS-NAME SUFFIX&MODEL -8- ELECTRICAL PARTS LIST -1/16 CX

32、-SNRV25 CX-SNRV28 HR7SM HRSM FRONT C.B O C 0108 87-010-785-080 C-CAP,U 0.015-25 K B GRM a b FRONT C.B O C 0153 87-010-787-080 C-CAP,U 0.022-25 K B GRM a b FRONT C.B O C 0154 87-A12-078-040 CAP,E 47-35 SMG a b FRONT C.B O C 0155 87-A12-090-040 CAP,E 4.7-50 SMG a b FRONT C.B O C 0156 87-A12-090-040 CA

33、P,E 4.7-50 SMG a b FRONT C.B O C 0301 87-012-278-080 C-CAP,U 2200P-50 K B GRM a b FRONT C.B O C 0351 87-A11-058-080 C-CAP,U 0.22-10 K B a b FRONT C.B O C 0361 87-012-274-080 C-CAP,U 1000P-50 K B GRM a b FRONT C.B O C 0362 87-012-274-080 C-CAP,U 1000P-50 K B GRM a b FRONT C.B O C 0371 87-012-274-080

34、C-CAP,U 1000P-50 K B GRM a b FRONT C.B O C 0372 87-012-274-080 C-CAP,U 1000P-50 K B GRM a b FRONT C.B X C 0451 88-108-000-080 C-JUMPER,U a b FRONT C.B O C 0601 87-A12-069-040 CAP,E 22-25 SMG a b FRONT C.B O C 0801 87-A11-058-080 C-CAP,U 0.22-10 K B a b FRONT C.B O C 0803 87-012-280-080 C-CAP,U 3300P-50 K B GRM a b FRONT C.B O C 0804 87-016-116-080 C-CAP,U 0.015-25 J B CB a b FRONT C.B O C 0806 87-012-273-080 C-CAP,U 820P-50 K B GRM a b FRONT C.B O C 0808 87-A12-083-040 CAP,E 0.1-50 SMG a b FRONT C.B O C 0809 87-A12-090-040 CAP,E 4.7-50 SMG a b FRONT C.B