Aiwa NSX-AJ24 Service Manual
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Aiwa NSX-AJ24 Service Manual

Aiwa NSX-AJ24 Service Manual

Compact disc stereo system
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SERVICE MANUAL
COMPACT DISC STEREO SYSTEM
• This Service Manual is the "Revision Publishing" and replaces "Simple Manual".
NSX-AJ24 <U> / BL24 <LH>
NSX-BL23 <LH> / BL34 <LH>
NSX-BL24 <HS>
• If requiring information about the CD mechanism, see Service Manual of AZG-1.
AZG-1 ZD8RDC
AZG-1 YZD8RDM
AZG-1 ZD4RDC
NSX-AJ24
NSX-BL23
NSX-BL24
NSX-BL34
NSX-BL24E
NSX-BL34E
BASIC TAPE MECHANISM : ZZM-3
BASIC CD MECHANISM : AZG-1
(S/M Code No. 09-003-426-1T1)
(S/M Code No. 09-004-426-1T4)
(S/M Code No. 09-004-426-1T5)
(S/M Code No. 09-001-335-3NA)
(S/M Code No. 09-001-335-3N6)
(S/M Code No. 09-001-335-3N8)
S/M Code No. 09-005-426-1R1
U
LH
LH, HS
LH
HA
HA

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Summary of Contents for Aiwa NSX-AJ24

  • Page 1 BASIC TAPE MECHANISM : ZZM-3 COMPACT DISC STEREO SYSTEM BASIC CD MECHANISM : AZG-1 • This Service Manual is the "Revision Publishing" and replaces "Simple Manual". NSX-AJ24 <U> / BL24 <LH> (S/M Code No. 09-003-426-1T1) NSX-BL23 <LH> / BL34 <LH> (S/M Code No. 09-004-426-1T4) NSX-BL24 <HS>...
  • Page 2 SYSTEM COMBINATION TABLE TAPE REMOTE SYSTEM SPEAKER CASSEIVER MECHANISM MECHANISM CONTROLLER SX–NAJ25 NSX–AJ24 CX–NAJ24 ZZM–3 YPR1NC AZG–1 ZD8RDC SX–R140 NSX–BL23 CX–NBL23 ZZM–3 YPR1NM AZG–1 YZD8RDM SX–NBL25 NSX–BL24 CX–NBL24 AZG–1 ZD8RDC RC–ZAS02 NSX–BL34 CX–NBL34 SX–NBL42 ZZM–3 YPR1NC NSX–BL24E CX–NBL24E SX–NBL25 AZG–1 ZD4RDC NSX–BL34E CX–NBL34E SX–NBL42...

  • Page 3: Specifications

    Weight 6.3 kg (6 ohms, T.H.D. 1 %, 1 kHz) Reference: 80 W + 80 W Speaker system SX-NAJ25 <NSX-AJ24> (6 ohms, T.H.D. 10 %, 1 kHz). Total harmonic distortion 0.05 % Speaker system SX-NBL25 <NSX-BL23/BL24/BL24E> (40 W, 1 kHz, 6 ohms, DIN AUDIO) Speaker system SX-NBL42 <NSX-BL34/BL34E>...

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

    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 5: Note On Before Starting Repair

    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 6 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 Main Parts List

    ELECTRICAL MAIN PARTS LIST REF. NO. PART NO. KANRI DESCRIPTION REF. NO. PART NO. KANRI DESCRIPTION 87-016-495-000 CAP,E 3300-25 M SMG<24U> 87-A12-183-090 CAP,E 3300-25 M 85<24HS> 87-A21-269-010 IC,EW732 87-A10-520-000 CAP,E 3300-35 M SMG<23LH,24LH> 87-A21-396-010 IC,STK490-040<24HS> 87-A12-182-090 CAP,E 3300-35 M85<24EHA,34LH,34EHA> 87-A21-398-010 IC,STK490-110<EXCEPT 24HS>...
  • Page 8 REF. NO. PART NO. KANRI DESCRIPTION REF. NO. PART NO. KANRI DESCRIPTION C318 87-010-546-080 CAP,ELECT 0.33-50V C800 87-012-369-080 C-CAP,S 0.047-50F C326 87-010-198-080 CAP,CHIP 0.022 C801 87-010-403-080 CAP,ELECT 3.3-50V C327 87-012-368-080 C-CAP,S 0.1-50 F C802 87-010-194-080 CAP,CHIP 0.047 C360 87-010-401-080 CAP,ELECT 1-50V C803 87-010-198-080 CAP,CHIP 0.022...
  • Page 9 REF. NO. PART NO. KANRI DESCRIPTION REF. NO. PART NO. KANRI DESCRIPTION R129 87-A00-669-080 RES,M/F 0.22-2W JRA<24U,34LH,34EHA> C913 87-010-248-040 CAP,E 220-10 SME R130 87-A00-669-080 RES,M/F 0.22-2W JRA<24U,34LH,34EHA> C914 87-010-248-040 CAP,E 220-10 SME R131 87-A00-669-080 RES,M/F 0.22-2W JRA<24U,34LH,34EHA> C915 87-010-196-080 CHIP CAPACITOR,0.1-25 R131 87-A00-257-080 RES,M/F 0.15-1W J<23LH,24LH,24EHA>...

  • Page 10: Chip Resistor Part Code

    REF. NO. PART NO. KANRI DESCRIPTION PT C.B <EXCEPT 24U> 87-010-387-080 CAP,E 470-25 M SME 87-010-403-080 CAP,E 3.3-50 M 11L SME 87-A61-110-010 CPNN,9P V TID-A 8A-NF9-614-010 PT,ANF-9 HR-HI<23LH,24LH,24EHA> 8A-NF9-613-010 PT,ANF-9 HR<24HS> 8A-NF9-616-010 PT,ANF-9 LH-H<34LH,34EHA> 8A-NF8-673-010 PT,SUB ANF-8(H)KAMI 87-A91-339-010 RELAY,AC DC12V GSPA-2 87-A90-165-010 SW,SL 1-2-3 SWS2301<23LH,24LH,24EHA,34LH,34EHA>...

  • Page 11: Transistor Illustration

    TRANSISTOR ILLUSTRATION E C B E C B E C B B C E CD1585 DTC114ES 2SC3331 2SB1370 CSA952 KTC3199 CSC4115 KTA1266 KTC3198 S D G 2SJ460 2SA1235 2SK2158 2SK2541 2SC2714 2SC3052 CMBT5401 CMBT5551 DTC114EK KRA102S KRC102S KRC104S RT1P141C RT1P144C –...

  • Page 12: Pin Connection

    FL (HNA–10SS12) GRID ASSIGNMENT / ANODE CONNECTION / PIN CONNECTION GRID ASSIGNMENT ANODE CONNECTION PIN CONNECTION – 12 –...

  • Page 13: Wiring - 1 (Main)

    WIRING – 1 (MAIN) – 13 –...

  • Page 14: Schematic Diagram - 1 (Main : 1 / 2 )

    SCHEMATIC DIAGRAM – 1 (MAIN : 1 / 2 <AMP SECTION>) – 14 –...

  • Page 15: Schematic Diagram - 2 (Main : 2 / 2 )

    SCHEMATIC DIAGRAM – 2 (MAIN : 2 / 2 <TUNER SECTION>) – 15 –...

  • Page 16: Wiring - 2 (Front)

    WIRING – 2 (FRONT) – 16 –...

  • Page 17: Schematic Diagram - 3 (Front / Deck)

    SCHEMATIC DIAGRAM – 3 (FRONT / DECK) – 17 –...
  • Page 18 WIRING – 3 (PT) <24U ONLY> – 18 –...

  • Page 19: Schematic Diagram - 4 (Pt)

    SCHEMATIC DIAGRAM – 4 (PT) <24U ONLY> – 19 –...
  • Page 20 WIRING – 4 (PT) <EXCEPT 24U> – 20 –...

  • Page 21: Schematic Diagram - 5 (Pt)

    SCHEMATIC DIAGRAM – 5 (PT) <EXCEPT 24U> – 21 –...

  • Page 22: Wiring - 5 (Deck)

    WIRING – 5 (DECK) FROM B FRONT C. B CN104 FFC104 D DECK C . B 1 3 5 7 9 11 2 4 6 8 10 – 22 –...

  • Page 23: Ic Block Diagram

    IC BLOCK DIAGRAM – 23 –...
  • Page 24 IC DESCRIPTION µ PD780226GF-014-3BA Pin No. Pin Name Description O-MOTOR DECK MOTOR ON/OFF output. O-SOL1 DECK1 solenoid output. O-SOL2 DECK2 solenoid output. – Not connected. – Not connected. O-SET_LED SET LED ON/OFF output. O-CLEAR_LED CLEAR LED ON/OFF output. O-PRESET_LED PRESET LED ON/OFF output. O-DOWN_LED DOWN LED ON/OFF output.
  • Page 25 Pin No. Pin Name Description I-HOLD Power failure detected input. I-CDSW CD mecha switch input. I-SPEANA_L A/D L-input for spectrum analyser level display. I-SPEANA_R A/D R-input for spectrum analyser level display. I-KEY1 Key1 input. I-KEY2 Key2 input. I-KEY3 Key3 input. I-TU_SIG Tuner signal input.
  • Page 26 IC, LC72131D Pin No. Pin Name Description X-IN A crystal oscillator (4.5MHz) is connected between these pins. X-OUT – Not connected. To enable the IC. Active "H". Digital data input from CPU (µPD780226GF-014-3BA) when relevant key is operated. Active "H". To clock in the data DI.
  • Page 27 ADJUSTMENT – 1 <TUNER / DECK> MAIN C.B 15 14 13 12 11 10 9 L802 L801 TP4(DC) IC801 L951 SFR451 SFR452 TP3(DC) TP8(LCH) (CLK) (3/3) (1/3) (GND) IC301 TP9(RCH) TP1(VT) FFE831 DECK–1 P HEAD DECK–2 R/P/E HEAD DECK C.B SFR1 <...
  • Page 28 < DECK SECTION > 7. DC Balance / Mono Distortion Adjustment 10. Tape Speed Adjustment (DECK 2) Settings : • Test point : TP3, TP4 (DC) Settings : • Test tape : TTA–100 • Test point : TP8 (Lch), TP9 (Rch) •...
  • Page 29 ADJUSTMENT – 2 <FRONT> FRONT C.B FL901 TP11 (KEY-SCAN) IC901 (GND) L951 C913 < FRONT SECTION > µ -CON OSC Adjustment Settings : • Test point : TP11 (KEY-SCAN), (GND) • Adjustment location : L951 Method : Connect a frequency counter across TP11 and GND via a CR network filter as shown below.
  • Page 30 MECHANICAL EXPLODED VIEW 1 / 1 (NSX–AJ24) <U>, (NSX–BL24) <LH> AZG-1 ZD8RDC WIRE,BINDER P.C.B 24LH ONLY 24U ONLY P.C.B FL901 HT-SINK P.C.B CHAS,MAIN ZZM-3 YPR1NC PLATE,EARTH – 30 –...

  • Page 31: Color Name Table

    MECHANICAL PARTS LIST 1 / 1 (NSX–AJ24) <U>, (NSX–BL24) <LH> REF. NO. PART NO. KANRI DESCRIPTION REF. NO. PART NO. KANRI DESCRIPTION 1 8A-NF0-007-010 WINDOW,CASS 2 30 82-NF7-210-110 GUIDE,FL(*) 2 8A-NF0-006-010 WINDOW,CASS 1 31 8A-NF8-007-010 PANEL,LEFT V-2 3 8A-NF0-004-010 BOX,CASS 2 32 8A-NF8-005-010 PANEL,TOP 4 8A-NF0-003-010...
  • Page 32 MECHANICAL EXPLODED VIEW 1 / 1 (NSX–BL23 / BL34) <LH> AZG-1 YZD8RDM <23LH> AZG-1 ZD8RDC <34LH> WIRE,BINDER P.C.B 23LH ONLY 34LH ONLY P.C.B FL901 HT-SINK P.C.B CHAS,MAIN ZZM-3 YPR1NM <23LH> PLATE,EARTH ZZM-3 YPR1NC <34LH> – 32 –...
  • Page 33 MECHANICAL PARTS LIST 1 / 1 (NSX–BL23 / BL34) <LH> REF. NO. PART NO. KANRI DESCRIPTION REF. NO. PART NO. KANRI DESCRIPTION 1 8A-NF0-007-010 WINDOW,CASS 2 30 8A-NF8-007-010 PANEL,LEFT V-2 2 8A-NF0-006-010 WINDOW,CASS 1 31 8A-NF8-005-010 PANEL,TOP 3 8A-NF0-004-010 BOX,CASS 2 32 8A-NF8-006-010 WINDOW,TOP 4 8A-NF0-003-010...
  • Page 34 MECHANICAL EXPLODED VIEW 1 / 1 (NSX–BL24) <HS> AZG-1 ZD8RDC WIRE,BINDER P.C.B P.C.B FL901 HT-SINK P.C.B PLATE,EARTH MIC CHAS,MAIN ZZM-3 YPR1NC PLATE,EARTH MECHA C – 34 –...
  • Page 35 MECHANICAL PARTS LIST 1 / 1 (NSX–BL24) <HS> REF. NO. PART NO. KANRI DESCRIPTION REF. NO. PART NO. KANRI DESCRIPTION 1 8A-NF0-007-010 WINDOW,CASS 2 31 82-NF7-210-110 GUIDE,FL(*) 2 8A-NF0-006-010 WINDOW,CASS 1 32 8A-NF8-007-010 PANEL,LEFT V-2 3 8A-NF0-004-010 BOX,CASS 2 33 8A-NF8-005-010 PANEL,TOP 4 8A-NF0-003-010 BOX,CASS 1...
  • Page 36 MECHANICAL EXPLODED VIEW 1 / 1 (NSX–BL24E / BL34E) <HA> AZG-1 ZD4RDC WIRE,BINDER P.C.B P.C.B FL901 HT-SINK P.C.B CHAS,MAIN ZZM-3 YPR1NC PLATE,EARTH MECHA C – 36 –...
  • Page 37 MECHANICAL PARTS LIST 1 / 1 (NSX–BL24E / BL34E) <HA> REF. NO. PART NO. KANRI DESCRIPTION REF. NO. PART NO. KANRI DESCRIPTION 1 8A-NF0-007-010 WINDOW,CASS 2 29 88-911-101-110 FF-CABLE,11P 1.25 2 8A-NF0-006-010 WINDOW,CASS 1 30 8A-NF0-201-010 GUIDE,OPE 1 WAY 3 8A-NF0-004-010 BOX,CASS 2 31 82-NF7-210-110 GUIDE,FL(*)

  • Page 38: Tape Mechanism Exploded View

    TAPE MECHANISM EXPLODED VIEW 1 / 1 TERMINAL, TERMINAL,LB1 IC, EW732 IC, EW732 P.C.B – 38 –...

  • Page 39: Tape Mechanism Parts List

    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-A90-403-110 HEAD,RPH MS15R 87-045-347-010 MOT,SHU2L 70 87-A90-404-010 HEAD,EH LE15B 8Z-ZM1-232-010 GEAR,IDL FF/REW 8Z-ZM3-239-010...

  • Page 40: Speaker Disassembly Instructions

    SPEAKER DISASSEMBLY INSTRUCTIONS Type.1 Type.4 TOOLS Insert a flat-bladed screwdriver into the position indicated by the arrows and remove the panel. Remove the screws of each speaker 1 Plastic head hammer unit and then remove the speaker units. 2 (() flat head screwdriver 3 Cut chisel How to Remove the PANEL, FR Type.2...

  • Page 41: Speaker Parts List

    SPEAKER PARTS LIST (SX–NAJ25) <YUSL, YUSC9> (SX–NBL25) <Y1SL, YLSL, YLSC9, YLSC3M, YUSC9> REF. NO. PART NO. KANRI DESCRIPTION 1 8A-NSA-001-010 PANEL,FR 2 8A-NSA-003-010 GRILLE,FRAME ASSY 3 8A-NSK-602-010 SPKR,W 140 4 8A-NSK-606-010 SPKR,T 60 5 87-NSH-612-010 SPKR,CERAMIC ASSY 6 87-NS7-611-010 CORD,SPKR 7 8A-NSA-014-010 PANEL,DUCT 8 8Z-NSY-003-010...
  • Page 42 2–11, IKENOHATA 1–CHOME, TAITO-KU, TOKYO 110, JAPAN TEL:03 (3827) 3111 9420025 0251431 Printed in Singapore...

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