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Aiwa NSX-R50 Service Manual

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All manuals and user guides at all-guides.com
SERVICE MANUAL
COMPACT DISC
STEREO SYSTEM
SYSTEM
NSX-R50
NSX-R51
• If requiring information about the CD mechanism, see Service Manual of
BZG-5, (S/M Code No. 09-00C-353-3N6).
NSX-R50
NSX-R51
BASIC TAPE MECHANISM : ZZM-3 PR3NM
BASIC CD MECHANISM : BZG-5 ZD3GNM
CD
SPEAKER
CASSEIVER
CX-NR50
SX-NR50
CX-NR51
S/M Code No. 09-01A-449-7N1
K
EZ
REMOTE
CONTROLLER
RC-CAS01

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  • Page 1 All manuals and user guides at all-guides.com NSX-R50 NSX-R51 SERVICE MANUAL COMPACT DISC BASIC TAPE MECHANISM : ZZM-3 PR3NM STEREO SYSTEM BASIC CD MECHANISM : BZG-5 ZD3GNM REMOTE SYSTEM SPEAKER CASSEIVER CONTROLLER NSX-R50 CX-NR50 SX-NR50 RC-CAS01 NSX-R51 CX-NR51 • If requiring information about the CD mechanism, see Service Manual of BZG-5, (S/M Code No.

  • Page 2: Specifications

    All manuals and user guides at all-guides.com SPECIFICATIONS MAIN UNIT CX-NR50 (K) / CX-NR51 (EZ) CD PLAYER TUNER Laser λ FM tuning range D/A converter FM usable sensitivity (IHF) Signal-to-noise ratio FM antenna terminal Harmonic distortion MW tuning range GENERAL µ...

  • Page 3: Protection Of Eyes From Laser Beam During Servicing

    All manuals and user guides at all-guides.com PROTECTION OF EYES FROM LASER BEAM DURING SERVICING 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 4: Note On Before Starting Repair

    All manuals and user guides at all-guides.com NOTE ON BEFORE STARTING REPAIR 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 5 All manuals and user guides at all-guides.com 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 6: Electrical Main Parts List

    All manuals and user guides at all-guides.com ELECTRICAL MAIN PARTS LIST REF. NO. PART NO. KANRI DESCRIPTION REF. NO. PART NO. KANRI DESCRIPTION 87-A12-826-000 CAP,E 3300-35 M 85 GS 87-A12-826-000 CAP,E 3300-35 M 85 GS 87-A21-419-040 C-IC,NJM14558MD-TE2 87-A12-072-080 CAP,E 100-25 SMG 87-A22-112-040 C-IC,BD3861FS 87-A12-072-080...
  • Page 7 All manuals and user guides at all-guides.com REF. NO. PART NO. KANRI DESCRIPTION REF. NO. PART NO. KANRI DESCRIPTION C403 87-012-193-080 C-CAP,U 82P-50 CH C793 87-A12-090-080 CAP,E 4.7-50 SMG C404 87-012-193-080 C-CAP,U 82P-50 CH C795 87-012-286-080 CAP, U 0.01-25 C405 87-012-286-080 CAP, U 0.01-25 C796...
  • Page 8 All manuals and user guides at all-guides.com REF. NO. PART NO. KANRI DESCRIPTION REF. NO. PART NO. KANRI DESCRIPTION C942 87-012-165-080 CAP 3P R995 87-012-195-080 C-CAP,U 100P-50CH C947 87-012-286-080 CAP, U 0.01-25 SFR451 87-A90-432-080 SFR,30K H NVZ6TLTA C948 87-A10-039-080 C-CAP,U 470P-50 J CH SFR452 87-A90-432-080 SFR,30K H NVZ6TLTA...

  • Page 9: Chip Resistor Part Code

    All manuals and user guides at all-guides.com REF. NO. PART NO. KANRI DESCRIPTION REF. NO. PART NO. KANRI DESCRIPTION C963 87-010-759-080 C-CAP,U, 0.1-25F PT C.B CN104 87-A60-057-010 CONN,11P V 9604S-11C CN202 87-099-209-010 CONN,4P 6216H 87-010-831-080 C-CAP,U,0.1-16F CN701 87-099-720-010 CONN,30P TYK-B(P) 8B-NF1-601-010 PT,BNF-1 EZ CN731...

  • Page 10: Transistor Illustration

    All manuals and user guides at all-guides.com TRANSISTOR ILLUSTRATION E C B E C B G D S B C E 2SB1370 2SC2240(GR/BL) 2SA1980G 2SK3053 2SA1981Y CDA1585BC CSC4115BC KTC3198GR B C E S D G 2SB1686 2SA1235F 2SJ460 2SK360E KRA102S 2SC2620B 2SD2642 2SK2541...
  • Page 11 All manuals and user guides at all-guides.com WIRING – 1 (MAIN / HP) – 11 –...
  • Page 12 All manuals and user guides at all-guides.com SCHEMATIC DIAGRAM – 1 (MAIN 1 / 2) – 12 –...
  • Page 13 All manuals and user guides at all-guides.com SCHEMATIC DIAGRAM – 2 (MAIN 2 / 2 : TUNER) – 13 –...

  • Page 14: Schematic Diagram - 3 (Hp)

    All manuals and user guides at all-guides.com SCHEMATIC DIAGRAM – 3 (HP) – 14 –...
  • Page 15 All manuals and user guides at all-guides.com WIRING – 2 (FRONT / LED) – 15 –...
  • Page 16 All manuals and user guides at all-guides.com SCHEMATIC DIAGRAM – 4 (FRONT / LED / DECK) – 16 –...
  • Page 17 All manuals and user guides at all-guides.com WIRING – 3 (PT) – 17 –...

  • Page 18: Schematic Diagram - 5 (Pt)

    All manuals and user guides at all-guides.com SCHEMATIC DIAGRAM – 5 (PT) – 18 –...
  • Page 19 All manuals and user guides at all-guides.com WIRING – 4 (DECK) TO FRONT C.B CN104 F DECK C.B (FC104) 11 9 7 5 3 1 10 8 6 4 2 (CAM1) (CAM2) (REA) (CST2) (CST1) SOL2 SOL1 SFR1 TAPE MOTOR –...

  • Page 20: Ic Block Diagram

    All manuals and user guides at all-guides.com IC BLOCK DIAGRAM – 20 –...
  • Page 21 All manuals and user guides at all-guides.com – 21 –...
  • Page 22 All manuals and user guides at all-guides.com FL (BJ854GNK BNF – 1) GRID ASSIGNMENT / ANODE CONNECTION GRID ASSIGNMENT ANODE CONNECTION – 22 –...
  • Page 23 All manuals and user guides at all-guides.com IC DESCRIPTION PD780228-061-3BA µ Pin Name Pin No. Description O-MOTOR DECK MOTOR ON/OFF output. O-SOL1 DECK1 solenoid ON/OFF output. O-SOL2 DECK2 solenoid ON/OFF output. O-LED_STB STB signal make clock and data effective. O-MUTE System MUTE ON/OFF output.
  • Page 24 All manuals and user guides at all-guides.com 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 25 All manuals and user guides at all-guides.com ADJUSTMENT (TUNER / DECK / FRONT) A MAIN C.B PARTS SIDE TC942 L941 L802 L951 L942 SFR451SFR452 L901 L902 A MAIN C.B PATTERN SIDE IC801 SFR452SFR451 R962 RPH/PH G DECK C.B SFR1 – 25 –...
  • Page 26 All manuals and user guides at all-guides.com <TUNER Adjustment> 1. VT Adjustment and Check (LW) Requirements Measuring instrument: Digital multimeter Test point: VT, GND Adjustment point: L942 (1) Connect a digital multimeter to VT and GND. DIGITAL MULTIMETER (2) Set the unit function to LW, and adjust the receiving frequency at 144 kHz. (3) Adjust L942 so that the digital multimeter indicates 1.3 ±...
  • Page 27 All manuals and user guides at all-guides.com <MW/LW Adjustment> Make sure that the following settings are done before adjustment. Preparation Measuring instruments: Standard Signal Generator (S.S.G.) / Loop antenna / Oscilloscope / Millivoltmeter / Dummy resistor (6Ω) (1) Connect the measuring instruments as shown in the diagram below. (2) Keep a distance of 60cm between the loop antenna of signal generator and the one connected to the unit.
  • Page 28 All manuals and user guides at all-guides.com <FM Adjustment> Make sure that the following settings are done before adjustment. Preparation * Measuring instruments: Standard Signal Generator (S.S.G.) / Oscilloscope / Millivoltmeter / Dummy resistor (6Ω) (1) Connect the measuring instruments as shown in the diagram below. (2) Connect the output terminal of signal generator to the antenna input terminal of the unit.
  • Page 29 All manuals and user guides at all-guides.com <Deck Section> 12. Tape Speed Adjustment (DECK 2) Requirements Measuring instruments: Wow-flutter meter (frequency counter) Test tape: TTA-100 (3 kHz) Test point: HP OUT WOW&FLUTTER METER Adjustment point: SFR1 (1) Connect the HP OUT terminal of the unit to the wow-flutter meter. INPUT (2) Insert the test tape (TTA-100) to DECK 2.
  • Page 30 All manuals and user guides at all-guides.com 17. Playback Sensitivity Check (DECK 1, DECK 2) Requirements Measuring instrument: Millivoltmeter Test tape: TTA-200 (400 Hz) Test point: TP8 (Lch), TP9 (Rch) (1) Connect the CH1 of millivoltmeter to TP8 (Lch) and the CH2 to TP9 (Rch). (2) Insert the test tape (TTA-200) to DECK 1 to playback.
  • Page 31 All manuals and user guides at all-guides.com <Front Section> B FRONT C.B PATTERN SIDE CLOCK B FRONT C.B PARTS SIDE L951 FREQUENCY COUNTER 20. Clock Adjustment Requirement CLOCK Measuring instrument: Frequency counter Test point: CLOCK, GND (1) While pressing and holding down the POWER button and the UP button, insert the AC plug. (2) Adjust L951 so that the frequency counter indicates 84.804 ±...

  • Page 32: Cd Test Mode

    All manuals and user guides at all-guides.com CD TEST MODE 1. Starting CD Test Mode Insert the AC plug while pressing and holding down the CD OPEN/CLOSE button. When the test mode is activated, the display appears “TEST”. 2. Exiting CD Test Mode Press the POWER button or unplug the AC plug.

  • Page 33: Mechanical Exploded View

    All manuals and user guides at all-guides.com MECHANICAL EXPLODED VIEW 1 / 1 BZG-5 REFLECTOR, CD 51EZSM HLDR, TR HT-SINK,ASSY PLATE, BOX MAGNET, BOX ZZM-3 COVER, MAGNET PLATE, EARTH MECH CHAS,MAIN PLATE, BOX MAGNET, BOX COVER, MAGNET – 33 –...

  • Page 34: Mechanical Parts List

    10 8B-NF1-023-010 PANEL,VOL 37 8A-NF8-206-010 HLDR,PWB M 11 8B-NF1-001-010 CABI,FR EZ<51EZSM> 38 8B-NF1-013-010 PANEL,TRAY 11 8B-NF1-041-010 CABI,FR K<50KSM> 39 87-CE3-023-010 BADGE,AIWA 30N SILV 12 8B-NF1-015-010 KEY,POWER 40 88-906-251-110 FF-CABLE,6P 1.25(RVS-FACE) 13 8B-NF1-028-010 REFLECTOR,FUN 41 8B-NF1-004-010 CABI,REAR EZSM<51EZSM> 14 8B-NF1-011-010 PANEL,FR EZ<51EZSM>...

  • Page 35: Tape Mechanism Exploded View

    All manuals and user guides at all-guides.com TAPE MECHANISM EXPLODED VIEW 1 / 1 TERMINAL, TERMINAL,LB1 IC, EW732 IC, EW732 – 35 –...

  • Page 36: Tape Mechanism Parts List

    All manuals and user guides at all-guides.com TAPE MECHANISM PARTS LIST 1 / 1 REF. NO. PART NO. KANRI DESCRIPTION REF. NO. PART NO. KANRI DESCRIPTION 8Z-ZM3-227-010 BELT,MAIN M3 8Z-ZM3-233-010 SPR-T,BRG M3 8Z-ZM3-235-010 BELT,MAIN L 84-ZM2-227-310 SPR-C,AZIMUTH 8Z-ZM1-235-010 PULLEY,MOT 87-A92-198-010 HEAD,PH HASVH 2504A 87-045-347-010 MOT,SHU2L 70...

  • Page 37: General Speaker Disassembly Instructions (For Reference)

    All manuals and user guides at all-guides.com GENERAL SPEAKER DISASSEMBLY INSTRUCTIONS (FOR REFERENCE) 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 38: Accessories / Package List

    All manuals and user guides at all-guides.com SPEAKER PARTS LIST SX-NR50 (YSL) REF. NO. PART NO. KANRI DESCRIPTION 1 8B-NSA-001-010 PANEL,FR R 2 8B-NSA-002-010 PANEL,FR L 3 8B-NSA-003-010 PANEL,BA R 4 8B-NSA-004-010 PANEL,BA L 5 8B-NSA-005-010 GRILLE,FRAME ASSY 6 8B-NSA-602-010 SPKR, W 160 30/4 7 8B-NSK-604-010 SPKR, T 60...
  • Page 39 All manuals and user guides at all-guides.com 2–11, IKENOHATA 1–CHOME, TAITO-KU, TOKYO 110, JAPAN TEL:03 (3827) 3111 9301978 9720501 921338 Printed in Singapore...

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