Aiwa NSX-R20 Service Manual
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Aiwa NSX-R20 Service Manual

Aiwa NSX-R20 Service Manual

Cd stereo system
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3 7 63 1515 0
SERVICE MANUAL
TE
L 13942296513
CD STEREO SYSTEM
SYSTEM
NSX–D20
NSX–R20
• This Service Manual is the "Revision Publishing" and replaces "Simple Manual"
(S/M Code No. 09-01C-454-0T1).
• If requiring information about the CD mechanism, see Service Manual of
www
BZG-2, (S/M Code No. 09-023-353-2N8).
.
http://www.xiaoyu163.com
CD
CASSEIVER
CX–ND20
CX–NR20
x
ao
u163
y
i
S/M Code No. 09-024-454-0R1
http://www.xiaoyu163.com
NSX-D20
2 9
8
NSX-R20
Q Q
3
6 7
1 3
1 5
BASIC CD MECHANISM : BZG-2 ZD9GNC1
BASIC TAPE MECHANISM : CMAT6Z2(1+1)ALPS
SPEAKER
SX–ND20
SX–NR20
co
.
U(S)
9 4
2 8
LH(S)
0 5
8
2 9
9 4
2 8
REMOTE
CONTROLLER
RC–CAS03(VS)
m
9 9
9 9

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Summary of Contents for Aiwa NSX-R20

  • Page 1 NSX-D20 U(S) 3 7 63 1515 0 NSX-R20 LH(S) SERVICE MANUAL L 13942296513 BASIC CD MECHANISM : BZG-2 ZD9GNC1 CD STEREO SYSTEM BASIC TAPE MECHANISM : CMAT6Z2(1+1)ALPS REMOTE SYSTEM SPEAKER CASSEIVER CONTROLLER NSX–D20 CX–ND20 SX–ND20 RC–CAS03(VS) NSX–R20 CX–NR20 SX–NR20 •...

  • Page 2: Table Of Contents

    http://www.xiaoyu163.com TABLE OF CONTENTS 3 7 63 1515 0 SPECIFICATIONS ................................3 PROTECTION OF EYES FROM LASER BEAM DURING SERVICING ..............4 NOTE ON BEFORE STARTING REPAIR ........................5, 6 ELECTRICAL PARTS LIST (CX – ND20 / NR20) ....................7 ~ 20 CHIP RESISTOR PART CODE ............................

  • Page 3: Specifications

    http://www.xiaoyu163.com SPECIFICATIONS 3 7 63 1515 0 MAIN UNIT CX-ND20 / NR20 CD PLAYER Laser Semiconductor laser (l = 780 nm) TUNER D/A converter 1 bit dual FM tuning range 87.5 MHz to 108 MHz Signal - to - noise ratio 85 dB (1 kHz, 0 dB) FM usable sensitivity (IHF) 13.2 dBf...

  • Page 4: Protection Of Eyes From Laser Beam During Servicing

    http://www.xiaoyu163.com PROTECTION OF EYES FROM LASER BEAM DURING SERVICING 3 7 63 1515 0 CAUTION This set employs laser. Therefore, be sure to follow carefully the instructions below when servicing. Use of controls or adjustments or performance of proce- dures other than those specified herin may result in WARNING!! hazardous radiation exposure.

  • Page 5: Note On Before Starting Repair

    http://www.xiaoyu163.com NOTE ON BEFORE STARTING REPAIR 1. Forced discharge of electrolytic capacitor of power supply block 3 7 63 1515 0 When repair is going to be attempted in the set that uses 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.
  • Page 6 http://www.xiaoyu163.com 3 7 63 1515 0 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 the 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.

  • Page 7: Electrical Parts List (Cx - Nd20 / Nr20)

    http://www.xiaoyu163.com ELECTRICAL PARTS LIST (CX – ND20 / NR20) = ! SAFTY PARTS = Components marked All components used on this model at the production line are shown in this service manual. 3 7 63 1515 0 However, please note that not all components 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.
  • Page 8 http://www.xiaoyu163.com = ! SAFTY PARTS = Components marked All components used on this model at the production line are shown in this service manual. 3 7 63 1515 0 However, please note that not all components 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.
  • Page 9 http://www.xiaoyu163.com = ! SAFTY PARTS = Components marked All components used on this model at the production line are shown in this service manual. 3 7 63 1515 0 However, please note that not all components 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.
  • Page 10 http://www.xiaoyu163.com = ! SAFTY PARTS = Components marked All components used on this model at the production line are shown in this service manual. 3 7 63 1515 0 However, please note that not all components 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.
  • Page 11 http://www.xiaoyu163.com = ! SAFTY PARTS = Components marked All components used on this model at the production line are shown in this service manual. 3 7 63 1515 0 However, please note that not all components 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.
  • Page 12 http://www.xiaoyu163.com = ! SAFTY PARTS = Components marked All components used on this model at the production line are shown in this service manual. 3 7 63 1515 0 However, please note that not all components 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.
  • Page 13 http://www.xiaoyu163.com = ! SAFTY PARTS = Components marked All components used on this model at the production line are shown in this service manual. 3 7 63 1515 0 However, please note that not all components 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.
  • Page 14 http://www.xiaoyu163.com = ! SAFTY PARTS = Components marked All components used on this model at the production line are shown in this service manual. 3 7 63 1515 0 However, please note that not all components 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.
  • Page 15 http://www.xiaoyu163.com = ! SAFTY PARTS = Components marked All components used on this model at the production line are shown in this service manual. 3 7 63 1515 0 However, please note that not all components 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.
  • Page 16 http://www.xiaoyu163.com = ! SAFTY PARTS = Components marked All components used on this model at the production line are shown in this service manual. 3 7 63 1515 0 However, please note that not all components 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.
  • Page 17 http://www.xiaoyu163.com = ! SAFTY PARTS = Components marked All components used on this model at the production line are shown in this service manual. 3 7 63 1515 0 However, please note that not all components 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.
  • Page 18 http://www.xiaoyu163.com = ! SAFTY PARTS = Components marked All components used on this model at the production line are shown in this service manual. 3 7 63 1515 0 However, please note that not all components 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.
  • Page 19 http://www.xiaoyu163.com = ! SAFTY PARTS = Components marked All components used on this model at the production line are shown in this service manual. 3 7 63 1515 0 However, please note that not all components 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.
  • Page 20 http://www.xiaoyu163.com = ! SAFTY PARTS = Components marked All components used on this model at the production line are shown in this service manual. 3 7 63 1515 0 However, please note that not all components 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.

  • Page 21: Chip Resistor Part Code

    http://www.xiaoyu163.com 3 7 63 1515 0 CHIP RESISTOR PART CODE Chip Resistor Part Coding Figure Resistor Code Value of resistor Chip resistor Dimensions (mm) Wattage Type Tolerance Symbol Resistor Code Form 1/16W 1005 0.35 1/16W 1608 0.45 1/10W 2125 1.25 0.45 1/8W 3216...

  • Page 22: Wiring - 1 (Main / Hp)

    http://www.xiaoyu163.com WIRING – 1 (MAIN / HP) 3 7 6 3 1 5 1 5 0 1 3 9 4 2 2 9 6 5 1 3 w w w u 1 6 3 – 22 – http://www.xiaoyu163.com...

  • Page 23: Schematic Diagram - 1 (Main 1 / 2)

    http://www.xiaoyu163.com SCHEMATIC DIAGRAM – 1 (MAIN : 1 / 2) 3 7 6 3 1 5 1 5 0 1 3 9 4 2 2 9 6 5 1 3 w w w u 1 6 3 – 23 – http://www.xiaoyu163.com...

  • Page 24: Schematic Diagram - 2 (Main 2 / 2)

    http://www.xiaoyu163.com SCHEMATIC DIAGRAM – 2 (MAIN : 2 / 2) 3 7 6 3 1 5 1 5 0 1 3 9 4 2 2 9 6 5 1 3 w w w u 1 6 3 – 24 – http://www.xiaoyu163.com...

  • Page 25: Schematic Diagram - 3 (U : Hp)

    http://www.xiaoyu163.com SCHEMATIC DIAGRAM – 3 (U : HP) 3 7 63 1515 0 L 13942296513 u163 – 25 – http://www.xiaoyu163.com...

  • Page 26: Schematic Diagram - 4 (Lh : Hp)

    http://www.xiaoyu163.com SCHEMATIC DIAGRAM – 4 (LH : HP) 3 7 63 1515 0 L 13942296513 u163 – 26 – http://www.xiaoyu163.com...

  • Page 27: Wiring - 2 (Front)

    http://www.xiaoyu163.com WIRING – 2 (FRONT) 3 7 6 3 1 5 1 5 0 1 3 9 4 2 2 9 6 5 1 3 w w w u 1 6 3 – 27 – http://www.xiaoyu163.com...

  • Page 28: Schematic Diagram -5 (Front / Deck)

    http://www.xiaoyu163.com SCHEMATIC DIAGRAM – 5 (FRONT / DECK) 3 7 6 3 1 5 1 5 0 1 3 9 4 2 2 9 6 5 1 3 w w w u 1 6 3 – 28 – http://www.xiaoyu163.com...

  • Page 29: Wiring - 3 (U : Pt)

    http://www.xiaoyu163.com WIRING – 3 (U : PT) 3 7 63 1515 0 L 13942296513 u163 – 29 – http://www.xiaoyu163.com...

  • Page 30: Schematic Diagram - 6 (U : Pt)

    http://www.xiaoyu163.com SCHEMATIC DIAGRAM – 6 (U : PT) 3 7 63 1515 0 L 13942296513 u163 – 30 – http://www.xiaoyu163.com...

  • Page 31: Wiring - 4 (Lh : Pt)

    http://www.xiaoyu163.com WIRING – 4 (LH : PT) 3 7 63 1515 0 L 13942296513 u163 – 31 – http://www.xiaoyu163.com...

  • Page 32: Schematic Diagram - 7 (Lh : Pt)

    http://www.xiaoyu163.com SCHEMATIC DIAGRAM – 7 (LH : PT) 3 7 63 1515 0 L 13942296513 u163 – 32 – http://www.xiaoyu163.com...

  • Page 33: Wiring - 5 (Deck)

    http://www.xiaoyu163.com WIRING – 5 (DECK) 3 7 6 3 1 5 1 5 0 DECK 1 DECK 2 1 3 9 4 2 2 9 6 5 1 3 P HEAD E / RP HEAD CNA301 CNA302 TO MAIN C.B TO MAIN C.B CN301 CN302...

  • Page 34: Ic Block Diagram

    http://www.xiaoyu163.com IC BLOCK DIAGRAM 3 7 6 3 1 5 1 5 0 1 3 9 4 2 2 9 6 5 1 3 w w w u 1 6 3 – 34 – http://www.xiaoyu163.com...

  • Page 35: Fl (Hua - 13Ss09T) Grid Assignment / Pin Connection / Anode Connection

    http://www.xiaoyu163.com FL (HUA – 13SS09T) GRID ASSIGNMENT / PIN CONNECTION / ANODE CONNECTION GRID ASSIGNMENT ANODE CONNECTION 3 7 6 3 1 5 1 5 0 1 3 9 4 2 2 9 6 5 1 3 PIN CONNECTION w w w u 1 6 3 –...

  • Page 36: Ic Description

    http://www.xiaoyu163.com IC DESCRIPTION PD780226GF-033-3BA µ 3 7 63 1515 0 Pin Name Pin No. Description O-MOTOR DECK motor output. O-SOL1 DECK1 solenoid output. O-SOL2 DECK2 solenoid output. O-STBY LED Standby LED output. O-MUTE System mute ON/OFF output. O-KSCAN Key scan timing output. O-PLL_CE PLL chip enable output for LC72131D-N.
  • Page 37 http://www.xiaoyu163.com 3 7 63 1515 0 Pin Name Description Pin No. I-SPEANA_1 A/D input for spectrum analyser level display. I-SPEANA_2 A/D input for spectrum analyser level display. I-SPEANA_3 A/D input for spectrum analyser level display. I-KEY 1 Key A/D input 1. I-KEY 2 Key A/D input 2.

  • Page 38: Adjustment (Tuner / Deck / Front)

    http://www.xiaoyu163.com ADJUSTMENT (TUNER / DECK / FRONT) 3 7 63 1515 0 MAIN C.B PARTS SIDE L802 L953 L952 L907 SFR451 L904 SFR452 MAIN C.B PATTERN SIDE L 13942296513 IC801 DECK C.B MOTOR u163 – 38 – http://www.xiaoyu163.com...
  • Page 39 http://www.xiaoyu163.com <TUNER Adjustment> 3 7 63 1515 0 1. VT Check (AM) Requirements • Measuring instrument: Digital multimeter Test points: VT, GND 1) Connect the digital multimeter between VT and GND. 2) Set the function to AM, and tune the receiving frequency of the unit at 1710kHz. 3) Check that the digital multimeter ranges under 9V.
  • Page 40 http://www.xiaoyu163.com <AM Adjustment> 3 7 63 1515 0 Make the following preparations for AM adjustment. Preparations • Standard Signal Generator (S.S.G.) / Loop antenna / Oscilloscope / Millivoltmeter / Dummy resistance (6ý) 1) Connect the unit and measuring instruments as shown in the diagram below. 2) Position the loop antenna connected to S.S.G.
  • Page 41 http://www.xiaoyu163.com <FM Adjustment> 3 7 63 1515 0 Make the following preparations for FM adjustment. Preparations • Standard Signal Generator (S.S.G.) / Loop antenna / Oscilloscope / Millivoltmeter / Dummy resistance (6ý) 1) Connect the unit and measuring instruments as shown in the diagram below. 2) Connect the output of S.S.G.
  • Page 42 http://www.xiaoyu163.com <DECK Section> 3 7 63 1515 0 10. Tape Speed Adjustment (DECK 2) Requirements • Measuring instrument: Wow and flutter meter (frequency counter) Test tape: TTA-100 (3kHz) Test point: HP OUT Adjustment point: DECK MOTOR SFR 1) Connect the wow and flutter meter to HP OUT of the unit. 2) Insert the test tape (TTA-100) to DECK 2.
  • Page 43 http://www.xiaoyu163.com 15. Playback Sensitivity Check (DECK 1 and DECK 2) 3 7 63 1515 0 Requirements • Measuring instrument: Millivoltmeter Test tape: TTA-200 (400Hz) Test points: TP8 (Lch), TP9 (Rch) 1) Connect CH1 of the millivoltmeter to TP8 (Lch) and CH2 to TP9 (Rch). 2) Insert the test tape (TTA-200) to DECK 1 and play back.
  • Page 44 http://www.xiaoyu163.com <FRONT Section> 3 7 63 1515 0 FRONT C.B PATTERN SIDE CLOCK FRONT C.B PARTS SIDE L951 L 13942296513 18. Clock Adjustment Requirements • Measuring instrument: Frequency counter Test tape: CLOCK, GND Adjustment point: L951 1) While pressing the UP and POWER button, insert the AC plug to the outlet.

  • Page 45: Cd Test Mode

    http://www.xiaoyu163.com CD TEST MODE 3 7 63 1515 0 CD TEST MODE Ver. 3.0 1. Starting CD Test Mode While pressing and holding down the CD OPEN/CLOSE button, insert the AC plug to outlet. When test mode starts, the message, “ TEST” appears on the display. 2.

  • Page 46: Mechanical Exploded View

    http://www.xiaoyu163.com MECHANICAL EXPLODED VIEW 3 7 6 3 1 5 1 5 0 CX-SND20 CX-SNR20 CX-SNR20 1 3 9 4 2 2 9 6 5 1 3 SND20 SND20 SNR20 w w w u 1 6 3 – 46 – http://www.xiaoyu163.com...

  • Page 47: Mechanical Parts List

    8A-NFA-208-010 GUIDE,FL 100-25 ANFA X MC1032 8C-NF9-621-010 PWB,FRONT CNF-9 CX-ND20 CX-NR20 USC1 LHSC1 O MC1033 87-B00-002-010 BADGE,AIWA 30 ABS SIL O MC1034 8C-NF8-008-010 PANEL,TRAY X MC1035 M8-BZG-29J-070 BZG-2 ZD9GNC1 O MC1036 8A-NF8-206-010 HLDR,PWB M O MC1037 8C-NF9-606-010 CONN ASSY,8P -RPB...
  • Page 48 http://www.xiaoyu163.com = ! SAFTY PARTS = Components marked All components used on this model at the production line are shown in this service manual. 3 7 63 1515 0 However, please note that not all components 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.

  • Page 49: Color Name Table

    http://www.xiaoyu163.com 3 7 63 1515 0 COLOR NAME TABLE Basic color symbol Color Basic color symbol Color Basic color symbol Color Black Cream Orange Green Gray Blue Transparent Blue Gold Pink Silver Titan Silver Brown Violet White Transparent White Yellow Transparent Yellow Metallic Blue Light Blue...

  • Page 50: Tape Mechanism Exploded View

    http://www.xiaoyu163.com TAPE MECHANISM EXPLODED VIEW 3 7 6 3 1 5 1 5 0 1 3 9 4 2 2 9 6 5 1 3 w w w u 1 6 3 – 50 – http://www.xiaoyu163.com...

  • Page 51: Tape Mechanism Parts List

    http://www.xiaoyu163.com TAPE MECHANISM PARTS LIST = ! SAFTY PARTS = Components marked All components used on this model at the production line are shown in this service manual. 3 7 63 1515 0 However, please note that not all components 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.

  • Page 52: General Speaker Disassembly Instructions (For Reference)

    http://www.xiaoyu163.com GENERAL SPEAKER DISASSEMBLY INSTRUCTIONS (FOR REFERENCE) 3 7 63 1515 0 Type.1 Type.4 Insert a flat-bladed screwdriver into the position indicated by the TOOLS arrows and remove the panel. Remove the screws of each speaker 1 Plastic head hammer unit and then remove the speaker units.

  • Page 53: Speaker Parts List (Sx - Nr20 / Nd20)

    UNIT-NAME ! C REF-NO PARTS-NO PARTS-NAME SUFFIX&MODEL SX-NR20 SX-ND20 YLS1N YUS1N OTHERS 88-NSK-610-010 SPKR, CERAMIC ASSY OTHERS 8A-NSJ-006-010 BADGE,AIWA S35 OTHERS 8B-NSK-610-010 SPKR, T 60 L OTHERS 8C-NS9-001-010 PANEL,FR L OTHERS 8C-NS9-002-010 PANEL,FR R OTHERS 8C-NS9-003-010 GRILLE,FRAME OTHERS 8C-NS9-011-010 PANEL,DUCT...

  • Page 54: Accessories Parts List

    PARTS-NAME SUFFIX&MODEL CX-ND20 CX-NR20 USC1 LHSC1 ACCESSORY 87-A92-150-010 ANT,LOOP AM NO-CONT ACCESSORY 87-A92-262-010 PLUG,CONVERSION WT01011 ACCESSORY 87-A92-345-010 ANT,WIRE FM(SEMI-ST) ACCESSORY 8C-NF8-702-010 RC UNIT,RC-CAS03(VS) PRINTED DU 8C-NF9-902-010 IB,LH(ESP)S NSX-R20 PRINTED DU 8C-NF9-903-010 IB,U(ESF)S NSX-D20 L 13942296513 u163 – 54 – http://www.xiaoyu163.com...

  • Page 55: Other Parts List (Cx - Nd20 / Nr20)

    http://www.xiaoyu163.com OTHER PARTS LIST (CX – ND20 / NR20) = ! SAFTY PARTS = Components marked All components used on this model at the production line are shown in this service manual. 3 7 63 1515 0 However, please note that not all components 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.
  • Page 56 http://www.xiaoyu163.com 3 7 63 1515 0 L 13942296513 u163 2-11, IKENOHATA 1-CHOME, TAITO-KU, TOKYO 110-8710, JAPAN TEL:03 (3827) 3111 9301978 921388 http://www.xiaoyu163.com...

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