Aiwa NSX-R71 Service Manual
Aiwa NSX-R71 Service Manual

Aiwa NSX-R71 Service Manual

Basic tape mechanism : 6zm-3 pr4nm basic cd mechanism : bzg-5 zd5gndm
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SERVICE MANUAL
CD STEREO SYSTEM
SYSTEM
NSX-R71
If requiring information about the CD mechanism, see Service Manual of
BZG-5 ZD5GNDM, (S/M Code No. 09-023-353-3NC).
NSX-R71
BASIC TAPE MECHANISM : 6ZM-3 PR4NM
BASIC CD MECHANISM : BZG-5 ZD5GNDM
CD
CASSEIVER
CX-NR71
S/M Code No. 09-026-452-3N3
REMOTE
SPEAKER
CONTROLLER
RC-CAS01
SX-NR70
EZ(S)

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Summary of Contents for Aiwa NSX-R71

  • Page 1 NSX-R71 EZ(S) SERVICE MANUAL BASIC TAPE MECHANISM : 6ZM-3 PR4NM CD STEREO SYSTEM BASIC CD MECHANISM : BZG-5 ZD5GNDM REMOTE SYSTEM SPEAKER CASSEIVER CONTROLLER RC-CAS01 NSX-R71 CX-NR71 SX-NR70 If requiring information about the CD mechanism, see Service Manual of BZG-5 ZD5GNDM, (S/M Code No. 09-023-353-3NC).
  • Page 2: Table Of Contents

    TABLE OF CONTENTS -1/1 SPECIFICATIONS ................................3 PROTECTION OF EYES FROM LASER BEAM DURING SERVICING ..............4 NOTE ON BEFORE STARTING REPAIR ........................5, 6 ACCESSORIES PARTS LIST .............................. 7 ELECTRICAL PARTS LIST ............................8 ~ 23 TRANSISTOR ILLUSTRATION ............................24 SCHEMATIC DIAGRAM -1/5 (MAIN-1/2, AMP SECTION) ....................
  • Page 3: Specifications

    SPECIFICATIONS -1/1 MAIN UNIT CX-NR71 TUNER FM tuning range 87.5 MHz to 108 MHz FM usable sensitivity (IHF) 16.8 dBf FM antenna terminal 75 ohms (unbalanced) MW tuning range 531 kHz to 1602 kHz (9 kHz step) 530 kHz to 1710 kHz (10 kHz step) MW usable sensitivity 350 V/m LW tuning range...
  • Page 4: Protection Of Eyes From Laser Beam During Servicing

    PROTECTION OF EYES FROM LASER BEAM DURING SERVICING -1/1 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

    NOTE ON BEFORE STARTING REPAIR -1/2 1. Forced discharge of electrolytic capacitor of power supply block 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 NOTE ON BEFORE STARTING REPAIR -2/2 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: Accessories Parts List

    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 CX-SNR71 EZSM O AS1001 8C-NF6-906-010 IB,EZ(9L)M NSX-R71 X AS1002 8B-NF1-701-110 RC UNIT,CAS01 X AS1003 87-006-225-010 ANT,LOOP ANT NC2 X AS1004 87-A92-346-010 ANT,WIRE FM(FASTEN)
  • Page 8: Electrical Parts List - 1/16

    ELECTRICAL PARTS LIST - 1/16 = ! SAFTY PARTS = 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 as spare parts for service and will be stocked at the spare parts centers.
  • Page 9 ELECTRICAL PARTS LIST - 2/16 = ! SAFTY PARTS = 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 as spare parts for service and will be stocked at the spare parts centers.
  • Page 10 ELECTRICAL PARTS LIST - 3/16 = ! SAFTY PARTS = 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 as spare parts for service and will be stocked at the spare parts centers.
  • Page 11 ELECTRICAL PARTS LIST - 4/16 = ! SAFTY PARTS = 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 as spare parts for service and will be stocked at the spare parts centers.
  • Page 12 ELECTRICAL PARTS LIST - 5/16 = ! SAFTY PARTS = 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 as spare parts for service and will be stocked at the spare parts centers.
  • Page 13 ELECTRICAL PARTS LIST - 6/16 = ! SAFTY PARTS = 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 as spare parts for service and will be stocked at the spare parts centers.
  • Page 14 ELECTRICAL PARTS LIST - 7/16 = ! SAFTY PARTS = 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 as spare parts for service and will be stocked at the spare parts centers.
  • Page 15 ELECTRICAL PARTS LIST - 8/16 = ! SAFTY PARTS = 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 as spare parts for service and will be stocked at the spare parts centers.
  • Page 16 ELECTRICAL PARTS LIST - 9/16 = ! SAFTY PARTS = 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 as spare parts for service and will be stocked at the spare parts centers.
  • Page 17 ELECTRICAL PARTS LIST - 10/16 = ! SAFTY PARTS = 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 as spare parts for service and will be stocked at the spare parts centers.
  • Page 18 ELECTRICAL PARTS LIST - 11/16 = ! SAFTY PARTS = 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 as spare parts for service and will be stocked at the spare parts centers.
  • Page 19 ELECTRICAL PARTS LIST - 12/16 = ! SAFTY PARTS = 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 as spare parts for service and will be stocked at the spare parts centers.
  • Page 20 ELECTRICAL PARTS LIST - 13/16 = ! SAFTY PARTS = 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 as spare parts for service and will be stocked at the spare parts centers.
  • Page 21 ELECTRICAL PARTS LIST - 14/16 = ! SAFTY PARTS = 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 as spare parts for service and will be stocked at the spare parts centers.
  • Page 22 ELECTRICAL PARTS LIST - 15/16 = ! SAFTY PARTS = 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 as spare parts for service and will be stocked at the spare parts centers.
  • Page 23 ELECTRICAL PARTS LIST - 16/16 • Regarding connectors, they are not stocked as they are not the initial order items. The connectors are available after they are supplied from connector manufacturers upon the order is received. CHIP RESISTOR PART CODE Chip Resistor Part Coding Figure Resistor Code...
  • Page 24: Transistor Illustration

    TRANSISTOR ILLUSTRATION -1/1 E C B B C E E C B E C B 2SC5343GL 2SB1548 2SA1980G 2SA1296GR 2SB1686 2SA1981Y 2SD2642 2SC3331(T/U) E C B G D S S D G 2N5551C 2SK3053 2SJ460 2SK2541 2SK360E 2SK2158 DTC114YKA 2SA1235F KRA102S 2SC2620B SBT5401...
  • Page 25: Schematic Diagram -1/5 (Main-1/2, Amp Section)

    SCHEMATIC DIAGRAM - 1/5 (MAIN -1/2, AMP SECTION) -25-...
  • Page 26: Schematic Diagram -2/5 (Main-2/2, Tuner Section)

    SCHEMATIC DIAGRAM - 2/5 (MAIN -2/2, TUNER SECTION) Q902 L901,902,904,905 Q901 MAIN C.B 2/2 (TUNER SECTION) C916 0.01 Q903-905 L801 L802 Q835 Q836 AM IF ADJ. FM IF AMP FM BAND SW 7.81V ON:7.68V OFF:0V 5.62V ANTENNA MS2 GH-A 1N4148M SFE10.7 6.9V 0.01...
  • Page 27: Schematic Diagram -3/5 (Hp Section)

    SCHEMATIC DIAGRAM -3/5 (HP SECTION) WH201 J201 -27-...
  • Page 28: Wiring -1/4 (Main C.b, Hp C.b)

    WIRING - 1/4 (MAIN C.B / HP C.B) R969 C869 C875 Q948 TC942 C797 C952 C874 R871 L941 C870 IC861 Q951 R870 C876 Q946 L942 R821 R952 C786 R802 C879 C942 Q861 R677 R945 C877 C878 R958 R865 C873 C948 X862 J832 L861...
  • Page 29: Schematic Diagram -4/5 (Front/Deck/Cd-Led Section)

    SCHEMATIC DIAGRAM - 4/5 (FRONT/DECK/CD-LED SECTION) FRONT C.B -26.3 -26.3 DC:-17.26 AC:2.01VAC -26.3 -26.3 -26.3 R701 R702 R703 D701 5.15 1N4148M S350 S349 S348 R350 R349 R348 5.15 3.3K 2.7K 1.8K 10.8/0 SKQNAB(N) S350 10.8/0 10.8/0 12.04 DC:-17.26 AC:2.01VAC 12.04 -26.3 5.15 12.04...
  • Page 30: Wiring -2/4 (Front C.b/Cd-Led C.b)

    WIRING - 2/4 (FRONT C.B / CD-LED C.B) R703 JR609 S348 R349 S349 R350 S350 CN104 (FFC104) S348 S349 S350 -30-...
  • Page 31: Wiring -3/4 (Deck C.b/Head-1 C.b)

    WIRING - 3/4 (DECK C.B / HEAD-1 C.B) DECK C.B TO FRONT C.B CN104 (CAM2) (CST2) (REA) (CAM1) (CST1) (FFC104) CRD1 HEAD-1 DECK-2 TO MAIN CB CN301 CNA302 DECK 1 TO MAIN C.B CN302 -31-...
  • Page 32: Schematic Diagram -5/5 (Pt Section)

    SCHEMATIC DIAGRAM -5/5 (PT SECTION) PT C.B PT,CNF-6 EZ WH081 AC36.4V AC17.5V AC2.3V C085 RY081 RELAY,AC12V D083 PT081 PT,SUB BMA E (VRK) D082 T081 AC230V, 50Hz T082 AC CORD ASSY, E BLK CC -32-...
  • Page 33: Wiring -4/4 (Pt C.b)

    WIRING - 4/4 (PT C.B) PT C.B C085 PT001 WH081 (W099) D082 D083 RY081 PT081 T081 T082 AC230V 50Hz AC CORD ASSY, E BLK CC -33-...
  • Page 34: Electrical Adjustment

    ELECTRICAL ADJUSTMENT -1/7 <TUNER/DECK Section> AIN C.B (PARTS SIDE) TC942 L941 L802 L942 L953 L952 L901 L907 SFR452 SFR451 L902 L905 L904 J203 MAIN C.B (PATTERN SIDE) IC801 R962 DECK C.B SFR1 -34-...
  • Page 35 ELECTRICAL ADJUSTMENT -2/7 <TUNER Adjustment> 1. VT Check (MW) Requirements • Measuring instrument: Digital multimeter Test points: VT, GND 1) Connect the digital multimeter between VT and GND. 2) Set the function to MW, and tune the receiving frequency of the unit at 1,602 kHz. 3) Check that the digital multimeter ranges under 8 V.
  • Page 36 ELECTRICAL ADJUSTMENT -3/7 <MW/LW Adjustment> Make the following preparations for MW/LW adjustment. Preparations • Standard Signal Generator (S.S.G.) / Loop antenna / Oscilloscope / Millivoltmeter / Dummy resistance (6 ) 1) Connect the unit and measuring instruments as shown in the diagram below. 2) Position the loop antenna connected to S.S.G.
  • Page 37 ELECTRICAL ADJUSTMENT -4/7 <FM Adjustment> Make the following preparations for FM adjustment. Preparations • Standard Signal Generator (S.S.G.) / Loop antenna / Oscilloscope / Millivoltmeter / Dummy resistance (6 ) 1) Connect the unit and measuring instruments as shown in the diagram below. 2) Connect the output of S.S.G.
  • Page 38 ELECTRICAL ADJUSTMENT -5/7 <DECK Section> 12. Tape Speed Adjustment (DECK 2) Requirements • Measuring instrument: Wow and flutter meter (frequency counter) Test tape: TTA-100 (3 kHz) Test point: HP OUT Adjustment point: SFR1 1) Connect the wow and flutter meter to HP OUT of the unit. 2) Insert the test tape (TTA-100) to DECK 2.
  • Page 39 ELECTRICAL ADJUSTMENT -6/7 17. Playback Sensitivity Check (DECK 1 and DECK 2) Requirements • Measuring instrument: Millivoltmeter Test tape: TTA-200 (400 kHz) 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 40 ELECTRICAL ADJUSTMENT -7/7 <FRONT Section> FRONT C.B PATTERN SIDE CLOCK FRONT C.B PARTS SIDE L951 20. Clock Adjustment Requirements • Measuring instrument: Frequency counter Test point: CLOCK, GND Adjustment point: L951 1) While pressing the FF and POWER button, insert the AC plug to the outlet. 2) Adjust L951 so that the frequency counter indicates the frequency level within 84.804 0.085 Hz.
  • Page 41: Cd Test Mode

    CD TEST MODE -1/1 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 42: Lcd Display

    LCD DISPLAY -1/2 <HUA-11MM42T> GRID ASSIGNMENT -42-...
  • Page 43 LCD DISPLAY -2/2 <HUA-11MM42T> ANODE CONNECTION PIN CONNECTION -43-...
  • Page 45: Ic Description

    IC DESCRIPTION -1/1 ( PD780228-081-3BA) -1/2 Pin No. Pin Name Description O-MOTOR DECK MOTOR output. O-SOL1 DECK SOL1 output. O-SOL2 DECK SOL2 output. O-LED_STB STB output for shift registor. O-MUTE MUTE output. O-KSCAN Initial scan output. O-PLL_CE TUNER chip enable output. I-TM_BASE Reference clock input for clock.
  • Page 46: Ic Description

    IC DESCRIPTION -1/1 ( PD780228-081-3BA) -2/2 Pin No. Pin Name Description I-CDSW CD mechanism SW input. I-SPEANA_1 Input spectrum analyzer DATA (Low Frequency). I-SPEANA_2 Input spectrum analyzer DATA (Middle Frequency). I-SPEANA_3 Input spectrum analyzer DATA (High Frequency). I-KEY1 Key input 1. I-KEY2 Key input 2.
  • Page 47: Mechanical Exploded View

    MECHANICAL EXPLODED VIEW -1/1 -47-...
  • Page 48: Mechanical Parts List

    88-904-201-110 FF-CABLE,4P 1.25 O MC1036 8B-NF9-207-010 GUIDE,FL 90.2-20 O MC1037 8A-NF8-206-010 HLDR,PWB M O MC1038 8B-NF1-013-010 PANEL,TRAY O MC1039 87-CE3-023-010 BADGE,AIWA 30N SILV O MC1040 88-906-251-110 FF-CABLE,6P 1.25 CX-SNR71 EZSM O MC1041 8C-NF6-016-010 CABI,REAR EZSM O MC1042 8B-NF1-203-010 HLDR,PWB PT...
  • Page 49: Color Name Table

    COLOR NAME TABLE -1/1 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 Transparent Green Dark Blue Transparent Orange...
  • Page 50: Tape Mechanism Exploded View <6Zm-3 Pr4Nm

    TAPE MECHANISM EXPLODED VIEW -1/1 <6ZM-3 PR4NM> LVR EJECT L LVR EJECT R GEAR PLAY GEAR PLAY -50-...
  • Page 51: Tape Mechanism Parts List <6Zm-3 Pr4Nm

    TAPE MECHANISM PARTS LIST -1/2 <6ZM-3 PR4NM> = ! SAFTY PARTS = 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 as spare parts for service and will be stocked at the spare parts centers.
  • Page 52 TAPE MECHANISM PARTS LIST -2/2 <6ZM-3 PR4NM> = ! SAFTY PARTS = 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 as spare parts for service and will be stocked at the spare parts centers.
  • Page 53: General Speaker Disassembly Instructions (For Reference)

    GENERAL SPEAKER DISASSEMBLY INSTRUCTIONS (FOR REFERENCE) -1/1 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 Plastic head hammer unit and then remove the speaker units. ) flat head screwdriver Cut chisel How to Remove the PANEL, FR...
  • Page 54: Speaker Parts List (Sx-Nr70)

    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 SX-SNR70 O SP1001 88-NSK-610-010 SPKR, CERAMIC ASSY X SP1002 8A-NSJ-006-010 BADGE,AIWA S35 X SP1003 8B-NSA-003-010 PANEL,BA R X SP1004 8B-NSA-004-010 PANEL,BA L X SP1005 8B-NSH-612-010 CORD,SPKR O SP1006 8B-NSK-604-010 SPKR, T 60...
  • Page 55: Other Parts List

    OTHER PARTS LIST -1/2 = ! SAFTY PARTS = 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 as spare parts for service and will be stocked at the spare parts centers.
  • Page 56 OTHER PARTS LIST -2/2 <TAPE MECHANISM 6ZM-3 PR4NM> = ! SAFTY PARTS = 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 as spare parts for service and will be stocked at the spare parts centers.
  • Page 57 2-11, IKENOHATA 1-CHOME, TAITO-KU, TOKYO 110-8710, JAPAN TEL:03 (3827) 3111 0251431...

This manual is also suitable for:

Cx-nr71Sx-nr70Rc-cas01

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