Aiwa CX-NSZ20 Service Manual Download Page 1

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SERVICE MANUAL

COMPACT DISC

STEREO SYSTEM

BASIC TAPE MECHANISM : ZZM-3 PR1NM / YPR1NF
BASIC CD MECHANISM : AZG-1 ZD8RDM / YZD8RDM

NSX-SZ20
NSX-SZ22
NSX-SZ27

EZ, K

S/M Code No. 09-003-423-4R2

REVISION

• This Service Manual is the “Revision Publishing” and replaces “Simple Manual”

NSX-SZ20/22 (EZ), (S/M Code No. 09-99C-423-4T2) and NSX-SZ27 (EZ),

(S/M Code No. 09-001-423-4T3).

• If requiring information about the CD mechanism, see Service Manual
of AZG-1, (S/M Code No. 09-001-335-3N6).

NSX-SZ20

SPEAKER

SYSTEM

CASSEIVER

REMOTE

CONTROLLER

NSX-SZ22

CX-NSZ20

SX-NSZ20

CX-NSZ22

SX-NSZ22

RC-ZAS02

NSX-SZ27

CX-NSZ27

SX-NSZ20

RC-ZAS17

SYSTEM

TAPE MECHANISM

CD MECHANISM

ZZM-3 PR1NM

AZG-1 ZD8RDM

NSX-SZ20<K>

NSX-SZ20<EZ>
NSX-SZ22<EZ>
NSX-SZ27<EZ>

ZZM-3 YPR1NF

AZG-1 YZD8RDM

Summary of Contents for CX-NSZ20

Page 1: ...le Manual NSX SZ20 22 EZ S M Code No 09 99C 423 4T2 and NSX SZ27 EZ S M Code No 09 001 423 4T3 If requiring information about the CD mechanism see Service Manual of AZG 1 S M Code No 09 001 335 3N6 NSX SZ20 SPEAKER SYSTEM CD CASSEIVER REMOTE CONTROLLER NSX SZ22 CX NSZ20 SX NSZ20 CX NSZ22 SX NSZ22 RC ZAS02 NSX SZ27 CX NSZ27 SX NSZ20 RC ZAS17 SYSTEM TAPE MECHANISM CD MECHANISM ZZM 3 PR1NM AZG 1 ZD8R...

Page 2: ...15 kHz Recording system AC bias Heads Deck 1 Playback head x 1 Deck 2 Recording Playback head x 1 erase head x 1 Compact disc player section Laser Semiconductor laser λ 780 nm D A converter 1 bit dual Signal to noise ratio 85 dB 1 kHz 0 dB Harmonic distortion 0 05 1 kHz 0 dB Speaker system 20EZ 20K 27EZ SX NSZ20 22EZ SX NSZ22 Speaker System 3 way bass reflex magnetic shielded type Speaker units Wo...

Page 3: ...n används på annat sätt än vad som specificeras i denna bruksanvising kan användaren utsättas för osynling laserstrålning som överskrider gränsen för laserklass 1 PROTECTION OF EYES FROM LASER BEAM DURING SERVICING CAUTION Use of controls or adjustments or performance of proce dures other than those specified herin may result in hazardous radiation exposure ATTENTION L utillisation de commandes ré...

Page 4: ...COMPUTER 1 Turn on the AC main power 2 Confirm that the main power is turned on and the HOLD terminal of the MICROCOMPUTER keeps the H level or not 3 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 i...

Page 5: ...s of the electrolytic capacitor C113 that is connected to VDD of the MICROCOMPUTER with tweezers 3 Connect the AC power cord again If the MICROCOMPUTER 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 schemati...

Page 6: ...0V C35 87 010 380 080 CAP ELECT 47 16V M 11L C36 87 010 381 080 CAP ELECT 330 16V C38 87 010 197 080 CAP CHIP 0 01 25 K B C60 87 010 403 080 CAP ELECT 3 3 50V C61 87 010 260 080 CAP ELECT 47 25V C97 87 010 196 080 CHIP CAPACITOR 0 1 25 C99 87 010 196 080 CHIP CAPACITOR 0 1 25 C101 87 010 185 080 C CAP S 3900P 50 B C102 87 010 185 080 C CAP S 3900P 50 B C103 87 010 545 080 CAP ELECT 0 22 50V SME C1...

Page 7: ...ECT 0 47 50V C818 87 010 180 080 C CAP S 1000P 50 J CH C821 87 010 405 080 CAP ELECT 10 50V C823 87 012 349 080 C CAP S 1000P 50 J CH C824 87 010 405 080 CAP ELECT 10 50V C825 87 010 596 080 CAP S 0 047 16 C831 87 010 406 080 CAP ELECT 22 50 M SME C842 87 010 197 080 CAP CHIP 0 01 25 K B C844 87 010 197 080 CAP CHIP 0 01 25 K B C850 87 010 260 080 CAP ELECT 47 25V C851 87 010 197 080 CAP CHIP 0 01...

Page 8: ... 180P 50CH C953 87 012 140 080 CAP 470P 50 CH C961 87 010 378 040 CAP E 10 16 M SME C962 87 012 157 080 C CAP S 330P 50 CH C963 87 010 196 080 CHIP CAPACITOR 0 1 25 CN104 87 A60 057 010 CONN 11P V 9604S 11C CN701 87 099 720 010 CONN 30P BLK TYK B P CN731 87 099 015 010 CONN 13P V BLK 6216V FC104 88 911 101 110 FF CABLE 11P 1 25 FC731 88 913 301 110 FF CABLE 13P 1 25 FL901 8A NF9 605 010 FL HNA 10S...

Page 9: ...C T182 87 A60 317 010 TERMINAL 1P MSC WH181 87 A90 510 010 HLDR WIRE 2 5 9P DECK C B HL1 8Z ZM3 214 010 HLDR IC CN1 87 099 753 010 CONN 11P H 9604 SFR1 87 024 581 010 SFR 3 3K DIA6V K0A SW1 87 A90 673 010 SW MICRO ESE11SH1C SW2 87 A91 500 010 SW MICRO MPU11470MLB0 SW3 87 A91 500 010 SW MICRO MPU11470MLB0 SW4 87 A91 500 010 SW MICRO MPU11470MLB0 SW5 87 A90 673 010 SW MICRO ESE11SH1C 8 8 A Resistor ...

Page 10: ...A1266GR KTC3198GR E C B 2SC3331 2SB1370 DTC114ES KTC3199GR CSC4115BC E C B B C E E B C 2SA1235F 2SC2714 2SC3052F CMBT5401 CMBT5551 CSD1306E S G D 2SK2158 E C B 2SJ460 2SK2541 S D G DTC114EK KRC102S KRC104S RT1N141C RT1N441C RT1P141C RT1P144C G D S 2SK360E ...

Page 11: ... 11 GRID ASSIGNMENT ANODE CONNECTION FL HNA 10SS12 GRID ASSIGNMENT AND ANODE CONNECTION ...

Page 12: ...WIRING 1 MAIN 12 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 A B C D E F G H I J K L M N O P Q R S T U 1 2 3 4 5 6 7 8 9 25 26 27 28 29 30 31 32 ...

Page 13: ... 13 SCHEMATIC DIAGRAM 1 MAIN 1 2 AMP ...

Page 14: ... 14 SCHEMATIC DIAGRAM 2 MAIN 2 2 TUNER ...

Page 15: ...WIRING 2 FRONT 15 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 A B C D E F G H I J K L M N O P Q R S T U 1 2 3 4 5 6 7 8 9 25 26 27 28 29 30 31 32 ...

Page 16: ... 16 SCHEMATIC DIAGRAM 3 FRONT ...

Page 17: ...WIRING 3 PT 17 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 A B C D E F G H I J K L M N O P Q R S T U ...

Page 18: ... 18 SCHEMATIC DIAGRAM 4 PT ...

Page 19: ... 19 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 A B C D E F G H I J K L M N O P Q R S T U 1 2 3 4 5 6 7 8 9 25 26 27 28 29 30 31 32 WIRING 4 DECK 1 3 5 7 9 11 FC104 D DECK C B FROM B FRONT C B CN104 ...

Page 20: ... 20 IC BLOCK DIAGRAM IC LA1843 IC LC72131D ...

Page 21: ... 21 IC BU1920FS 22EZ ONLY IC M61503FP ...

Page 22: ...put 21 O OPEN O CD tray open data output 22 O CLOSE O CD tray close data output 23 O DISH_F O CD turntable forward rotation output 24 O DISH_R O CD turntable reverse rotation output 25 NC Not connected 26 NC Not connected 27 I REA I Volume jog AD input 28 I RDS_CLK I Tuner RDS clock input 22EZ 29 I SUBQ I RDS_DATA I CD SUBQ data input Tuner RDS data input 22EZ 30 RESET System reset 31 O DATA O Dat...

Page 23: ...E I Base input for clock 65 I CAM2 I DECK2 CAM switch data input 66 I CAM1 I DECK1 CAM STOP switch data input 67 P1 I AUTO2 O I FL segment P1 output DECK2 AUTO STOP switch data input 68 P2 I AUTO1 O I FL segment P2 output DECK1 AUTO STOP switch data input 69 P3 I CST2 O I FL segment P3 output DECK2 cassette detect switch data input 70 P4 I CST1 O I FL segment P4 output DECK1 cassette detect switch...

Page 24: ...1000kHz and adjust L951 1 3 to MAX 6 LW Tracking Adjustment Settings Test point TP8 Lch TP9 Rch Adjustment location L941 144kHz TC942 290kHz Method Set up TC942 to center before adjustment Adjust L941 so that the level at 144kHz becomes maximum Then adjust TC942 so that the level at 290kHz becomes maximum 7 FM Tracking Check Settings Test point TP8 Lch TP9 Rch Method Set to FM 98 0MHz and check th...

Page 25: ...output level of the test point is 110mV 3dB 14 REC PB Frequency Response Adjustment DECK 2 Settings Test tape TTA 602 Test point TP8 Lch TP9 Rch Input signal 1kHz 8kHz LINE IN Adjustment location SFR451 Lch SFR452 Rch Method Apply a 1kHz signal and REC mode Then adjust OSC attenuator so that the output level at the TP8 TP9 becomes 20VU 26dBV Record and play back the 1kHz and 8kHz signals and adjus...

Page 26: ...21 22 23 24 26 27 36 PLATE EARTH MIC 37 38 37 39 38 2 3 1 FL901 D I I P C B CHAS MAIN ZZM 3 PR1NM EZ ZZM 3 YPR1NF K 25 29 34 35 PT 41 42 43 28 A A A A A A A H H F G P C B 31 32 33 12 44 G WIRE BINDER A A C A B AZG 1 ZD8RDM EZ AZG 1 YZD8RDM K 17 18 19 20 30 45 A A A A E G A 40 HT SINK ...

Page 27: ...A NF8 007 010 PANEL LEFT V 2 EXCEPT 27 17 8A NF9 092 010 PANEL LEFT V 2 B 27 18 8A NF8 005 010 PANEL TOP EXCEPT 27 18 8A NF9 090 010 PANEL TOP B 27 19 8A NF8 006 010 WINDOW TOP EXCEPT 27 19 8A NF9 091 010 WINDOW TOP B 27 20 8A NF9 014 010 PANEL TRAY EXCEPT 27 20 8A NF9 088 010 PANEL TRAY B 27 21 8A NF9 008 010 KEY POWER EXCEPT 27 21 8A NF9 087 010 KEY POWER B 27 22 8A NF9 009 010 KEY FUN 23 8A NF9...

Page 28: ... 10 11 10 11 12 12 13 13 14 14 15 15 16 16 17 18 18 19 19 20 20 21 21 30 22 23 24 25 26 27 28 22 23 24 25 26 27 28 29 31 32 33 34 35 36 37 37 38 38 39 39 40 41 42 43 44 51 52 45 46 47 48 49 50 53 54 54 56 55 30 35 29 31 32 33 52 51 44 45 43 42 IC EW732 IC EW732 b a a b c c 40 41 46 47 48 49 P C B ...

Page 29: ...8Z ZM3 250 010 0E GEAR SLIP F R A M3 27 8Z ZM1 269 010 0E FELT FF REW 2 28 8Z ZM1 238 110 0E GEAR SLIP FF REW B 2 29 8Z ZM3 220 010 0E LEVER FR M3 30 8Z ZM3 205 010 0E LEVER PLAY M3 31 8Z ZM3 233 010 0E SPR T BRG M3 32 84 ZM2 227 310 0E SPR C AZIMUTH 33 87 A90 403 110 1B HEAD RPH MS15R 34 87 A90 404 010 1B HEAD EH LE15B 35 8Z ZM3 239 010 0E SPR E FR 36 8Z ZM3 211 010 0E LEVER EJECT R 37 8Z ZM3 225...

Page 30: ...rning to clockwise direction until click sound comes out Remove the grill frame and four pieces of rubber caps by pulling out with a flat bladed screwdriver Remove the screws from hole where installed rubber caps Insert a flat bladed screwdriver into the position indicated by the arrows and remove the panel Re move the screws of each speaker unit and then remove the speaker units TOOLS 1 Plastic h...

Page 31: ...701 210 RC UNIT ZAS02 20EZ 20K 22EZ 4 8Z NF9 703 110 RC UNIT ZAS17 27EZ SPEAKER PARTS LIST SX NSZ20 YBC9 YBY1 YBY2 YSL YSC9 YSY1 YSY2 SX NSZ22 YSC9 YSY1 YSY2 1 8A NSK 001 010 PANEL FR EXCEPT YBC9 YBY1 YBY2 2 8A NSK 003 010 GRILLE FRAME ASSY 3 8A NSK 007 010 PROTECTOR TWA 4 8A NSK 602 010 SPKR W 140 EXCEPT 22YSC9 4 8A NSJ 602 010 SPKR W 130 22YSC9 5 88 NS5 605 010 SPKR T 60 EXCEPT 22YSC9 5 8A NSK 6...

Page 32: ...2 11 IKENOHATA 1 CHOME TAITO KU TOKYO 110 JAPAN TEL 03 3827 3111 Printed in Singapore 9820543 0251431 ...

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