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Aiwa MSX-R14 Service Manual

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SERVICE MANUAL
CD STEREO SYSTEM
SYSTEM
NSX-R14
If requiring information about the CD mechanism, see Service Manual of
BZG-2 ZD9GNC2, (S/M Code No. 09-023-353-2NA).
NSX-R14
BASIC CD MECHANISM : BZG-2 ZD9GNC2
BASIC TAPE MECHANISM : CMAT6Z2(1+1)ALPS
CD
CASSEIVER
CX-NR14
S/M Code No. 09-028-455-6N5
SPEAKER
CONTROLLER
SX-NR22
RC-CAS03(VS)
LH(S)
REMOTE

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Summary of Contents for Aiwa MSX-R14

  • Page 1 NSX-R14 LH(S) SERVICE MANUAL BASIC CD MECHANISM : BZG-2 ZD9GNC2 CD STEREO SYSTEM BASIC TAPE MECHANISM : CMAT6Z2(1+1)ALPS REMOTE SYSTEM SPEAKER CASSEIVER CONTROLLER NSX-R14 CX-NR14 SX-NR22 RC-CAS03(VS) If requiring information about the CD mechanism, see Service Manual of BZG-2 ZD9GNC2, (S/M Code No. 09-023-353-2NA). S/M Code No.

  • 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 ~ 20 TRANSISTOR ILLUSTRATION ............................21 SCHEMATIC DIAGRAM -1/5 (MAIN-1/2, AMP SECTION) ....................

  • Page 3: Specifications

    SPECIFICATIONS -1/1 MAIN UNIT CX-NR14 TUNER FM tuning range 87.5 MHz to 108 MHz FM usable sensitivity (IHF) 13.2 dBf FM antenna terminal 75 ohms (unbalanced) AM tuning range 530 kHz to 1710 kHz (10 kHz step) 531 kHz to 1602 kHz (9 kHz step) 350 µV/m AM usable sensitivity AM antenna...

  • 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

    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

    ACCESSORIES PARTS LIST -1/1 = ! 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 8: Electrical Parts List - 1/13

    ELECTRICAL PARTS LIST - 1/13 = ! 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 - 2/13 = ! 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 - 3/13 = ! 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 - 4/13 = ! 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 - 5/13 = ! 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 - 6/13 = ! 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 - 7/13 = ! 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 - 8/13 = ! 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 - 9/13 = ! 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 - 10/13 = ! 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 - 11/13 = ! 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 - 12/13 = ! 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

    ELECTRICAL PARTS LIST - 13/13 • 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 21: Transistor Illustration

    TRANSISTOR ILLUSTRATION -1/1 B C E E C B E C B 2SB1342 2SA1980G 2SC5343GL 2SB1370E 2SA1981Y 2SD1933 2SC3331(T/U) S D G E C B 2SJ460 2SK360E 2SA1585SR 2SK2541 2SA1235F 2SC5477 2SC2620B 2SD1306E 2SK2158 2SC3052F SRA2202S SRA2207S 2SC5345SF/S(O) -21-...

  • Page 22: Schematic Diagram -1/5 (Main-1/2, Amp Section)

    SCHEMATIC DIAGRAM - 1/5 (MAIN -1/2, AMP SECTION) MAIN C.B 1/2 (AMP SECTION) TO MAIN C.B (TUNER SECTION) 1A-12A 0.33/50 0.33/50 11.4V 12.0V Q111,112 12.0V -23.5V Q113,114 4.7V 220/10 47/25 -4.7V 2SC3052F R173 11.4V 1/50 1.8K 0.33/50 L CH 33/25 Q101,102,131 R CH Q111...

  • Page 23: Schematic Diagram -2/5 (Main-2/2, Tuner Section)

    SCHEMATIC DIAGRAM - 2/5 (MAIN -2/2, TUNER SECTION) L904 Q901 Q902 MAIN C.B 2/2 (TUNER SECTION) Q904 2SC5477 Q904 L802 Q835 Q836 AM IF ADJ. FM IF AMP FM BAND SW 7.81V 5.62V C852 ANTENNA 0.01 FM75 11.4V C802 FLTR, 0.047 LOOP PCFJZH-450L...

  • Page 24: Schematic Diagram -3/5 (Hp Section)

    SCHEMATIC DIAGRAM -3/5 (HP SECTION) HP C.B -24-...

  • Page 25: Wiring -1/4 (Main C.b, Hp C.b)

    WIRING - 1/4 (MAIN C.B/HP C.B) C952 R302 C961 L953 L952 J831 J831 R963 C789 Q304 C603 C988 Q305 C612 CLP301 CF831 LOOP C971 D903 R632 R914 C906 Q904 Q901 L901 C911 FM75 C998 C931 C922 IC991 R669 R904 R905 D902 C901 R997...

  • Page 26: Schematic Diagram -4/5 (Front/Mic/Deck Section)

    SCHEMATIC DIAGRAM - 4/5 (FRONT/MIC/DECK SECTION) FRONT C.B (NC) (NC) (NC) MULTIPLEX 100/16 MIC C.B (FFC103) 33/16 0.22/50 0.22/50 0.22/50 MIC MIXING DECK C.B Q401-406 100K 10/50 : MIC SIGNAL -26-...

  • Page 27: Wiring -2/4 (Front C.b/Mic C.b)

    WIRING - 2/4 (FRONT C.B/MIC C.B) R720 R324 C406 C414 MIC C.B VR401 J401 MULTIPLEX MIC MIXING -27-...

  • Page 28: Wiring -3/4 (Deck C.b)

    WIRING - 3/4 (DECK C.B) DECK C.B DECK 1 DECK 2 P HEAD E / RP HEAD CNA301 CNA302 TO MAIN C.B TO MAIN C.B CN301 CN302 -28-...

  • Page 29: Schematic Diagram -5/5 (Pt Section)

    SCHEMATIC DIAGRAM -5/5 (PT SECTION) PT C.B PT,HR/HT CNH-A SW,SL 1-2-3 AC VOLTAGE FUSE CLAMP 1.25A 250V FUSE CLAMP AC120V/220-230V/240V 50/60Hz -29-...

  • Page 30: Wiring -4/4 (Pt C.b)

    WIRING - 4/4 (PT C.B) AC120V/220-230V/240V, 50/60Hz PT C.B FC091 F090 FC092 S001 S001 AC VOLTAGE 120V 220-230V 240V -30-...

  • Page 31: Electrical Adjustment

    ELECTRICAL ADJUSTMENT -1/6 PARTS SIDE MAIN C.B L802 L953 L952 SFR451 L907 L904 SFR452 MAIN C.B PATTERN SIDE IC801 DECK C.B MOTOR -31-...
  • Page 32 ELECTRICAL ADJUSTMENT -2/6 <TUNER Adjustment> 1. VT Check (AM) Requirements Measuring instrument: Digital multimeter Test point: VT, GND (1) Connect the digital multimeter to VT and GND. (2) Set the unit function to AM, and adjust the receiving frequency to 1,710 kHz. (3) Check that the digital multimeter indicates 9.0 V or below.
  • Page 33 ELECTRICAL ADJUSTMENT -3/6 5. Tracking Adjustment Requirements: Same as Item 4. Adjustment point: L952 / L953 (1) Adjust the S.S.G. setting to AM; carrier at 1000 kHz with 30% modulation, and source at 1 kHz, position output at maximum. (2) Adjust the unit to AM 1000 kHz. (3) While monitoring the 1 kHz waveform through oscilloscope, decrease the S.S.G.
  • Page 34 ELECTRICAL ADJUSTMENT -4/6 <Deck Section> 10.Tape Speed Adjustment (DECK 2) Requirements Measuring instruments: Wow-flutter meter (frequency counter) Test tape: TTA-100 (3 kHz) Test point: HP OUT Adjustment point: DECK MOTOR SFR (1) Connect the HP OUT terminal of the unit to the wow-flutter meter. (2) Insert the test tape (TTA-100) to DECK 2.
  • Page 35 ELECTRICAL ADJUSTMENT -5/6 15.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 36 ELECTRICAL ADJUSTMENT -6/6 <Front Section> FRONT C.B PA TTERN SIDE KSCAN FRONT C.B PA RTS SIDE L951 18. Clock Adjustment Requirement FREQUENCY CO UNTER Measuring instrument: Frequency counter Test point: CLOCK, GND Adjustment point: L951 CLOCK (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 72.743 ±...

  • Page 37: Cd Test Mode

    CD TEST MODE -1/1 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. Exiting CD Test Mode Press the other function button, POWER button or remove the AC plug from outlet.

  • Page 38: Fl Display (Hua-13Ss09T)

    FL DISPLAY - 1/1 (HUA-13SS09T) GRID ASSIGNMENT ANODE CONNECTION PIN CONNECTION -38-...

  • Page 39: Ic Block Diagram

    IC BLOCK DIAGRAM -1/2 IC, LC72131D-N IC, BD3881FV -39-...
  • Page 40 IC BLOCK DIAGRAM -2/2 IC, LA1845N-A -40-...

  • Page 41: Ic Description

    IC DESCRIPTION -1/1 (µPD780226GF-033-3BA) -1/2 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. (Not used) O-MUTE System mute ON/OFF output. O-KSCAN Key scan timing output. O-PLL_CE PLL chip enable output for LC72131D-N.

  • Page 42: Ic Description

    IC DESCRIPTION -1/1 (µPD780226GF-033-3BA) -2/2 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 43: Mechanical Exploded View

    MECHANICAL EXPLODED VIEW -1/1 -43-...

  • Page 44: Mechanical Parts List

    O MC1030 88-911-101-110 FF-CABLE,11P 1.25 100MM O MC1031 8A-NFA-208-010 GUIDE,FL 100-25 ANFA X MC1032 8C-NFA-621-010 PWB,FRONT CNF-A B/F O MC1033 87-B00-002-010 BADGE,AIWA 30 ABS SIL O MC1034 8C-NFA-009-010 PANEL,TRAY X MC1035 M8-BZG-29R-070 BZG-2 ZD9GNC2 O MC1036 8A-NF8-206-010 HLDR,PWB M O MC1037...

  • Page 45: 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 46: Tape Mechanism Exploded View

    TAPE MECHANISM EXPLODED VIEW -1/1 <CMAT6Z2(1+1)ALPS> -46-...

  • Page 47: Tape Mechanism Parts List

    TAPE MECHANISM PARTS LIST -1/1 <CMAT6Z2(1+1)ALPS> = ! 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 48: 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 49: Speaker Parts List (Sx-Nr22)

    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-SNR22 YLS1N O SP1001 8A-NSJ-006-010 BADGE,AIWA S35 O SP1002 8C-CP5-007-010 CORD,SPKR O O SP1003 8C-CP5-008-010 CORD,BUSH O O SP1004 8C-NS9-007-010 PANEL,DUCT O O SP1005...

  • Page 50: Other Parts List

    OTHER PARTS LIST -1/1 = ! 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 51 2-11, IKENOHATA 1-CHOME, TAITO-KU, TOKYO 110-8710, JAPAN TEL:03 (3827) 3111 0251431...

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