Aiwa XR-EM70 Service Manual
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Aiwa XR-EM70 Service Manual

Aiwa XR-EM70 Service Manual

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See also: Service Manual , Owner's Manual
SERVICE MANUAL
COMPACT DISC
STEREO SYSTEM
SYSTEM
XR-EM70
XR-EM71
• This Service Manual is the “Revision Publishing” and replaces
“Simple Manual” of XR-EM70 <K>/ 71 <EZ>, (S/M Code No. 09-018-449-6T1).
XR-EM70
XR-EM71
BASIC TAPE MECHANISM : AZM-1 A4NM
BASIC CD MECHANISM : 3ZG-3 E13NM
COMPACT
DISC
CX-LEM70
CX-LEM71
S/M Code No. 09-019-449-6R1
REMOTE
SPEAKER
CONTROLLER
SX-LEM70
RC-BAT15
K
EZ

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Summary of Contents for Aiwa XR-EM70

  • Page 1 BASIC CD MECHANISM : 3ZG-3 E13NM COMPACT REMOTE SYSTEM SPEAKER DISC CONTROLLER CX-LEM70 XR-EM70 SX-LEM70 RC-BAT15 CX-LEM71 XR-EM71 • This Service Manual is the “Revision Publishing” and replaces “Simple Manual” of XR-EM70 <K>/ 71 <EZ>, (S/M Code No. 09-018-449-6T1). S/M Code No. 09-019-449-6R1...

  • Page 2: Table Of Contents

    TABLE OF CONTENTS SPECIFICATIONS ................................3 PROTECTION OF EYES FROM LASER BEAM DURING SERVICING ..............4 ELECTRICAL MAIN PARTS LIST ..........................5 ~ 9 TRANSISTOR ILLUSTRATION ............................10 WIRING – 1 (MAIN / PHONE / OPTICAL) ......................... 11 SCHEMATIC DIAGRAM – 1 (MAIN 1 / 2 / PHONE / OPTICAL / HEAD) ................12 SCHEMATIC DIAGRAM –...

  • Page 3: Specifications

    SPECIFICATIONS MAIN UNIT CX-LEM70 (K) / CX-LEM71 (EZ) CD PLAYER Laser λ TUNER D/A converter FM tuning range Signal-to-noise ratio FM usable sensitivity (IHF) Harmonic distortion FM antenna terminal Wow and flutter MW tuning range GENERAL µ MW usable sensitivity Power requirements LW tuning range Power consumption...

  • 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: Electrical Main Parts List

    ELECTRICAL MAIN PARTS LIST REF. NO. PART NO. KANRI DESCRIPTION REF. NO. PART NO. KANRI DESCRIPTION C103 87-A12-091-080 CAP,E 10-50 SMG C104 87-A12-091-080 CAP,E 10-50 SMG 87-020-454-010 IC,DN6851 C107 87-A12-091-080 CAP,E 10-50 SMG 87-A21-831-010 IC,SPS-422-1-F1 C108 87-A12-091-080 CAP,E 10-50 SMG 8B-CLX-610-010 C-IC,LC876564V-5Y22 C109...
  • Page 6 REF. NO. PART NO. KANRI DESCRIPTION REF. NO. PART NO. KANRI DESCRIPTION C391 87-010-787-080 C-CAP,U 0.022-25 KB C560 87-A12-089-080 CAP,E 3.3-50 SMG C403 87-010-759-080 C-CAP,U, 0.1-25F C561 87-A12-071-080 CAP,E 47-25 SMG C409 87-012-282-080 CAP, U 4700P-50 C861 87-010-405-080 CAP, ELECT 10-50V<EZ> C422 87-016-459-080 CAP,E 470-10 M SMG...
  • Page 7 REF. NO. PART NO. KANRI DESCRIPTION REF. NO. PART NO. KANRI DESCRIPTION 87-A91-024-180 SW-TACT KSHG611BT C605 87-012-195-080 C-CAP,U 100P-50CH 87-A91-024-180 SW-TACT KSHG611BT C606 87-012-195-080 C-CAP,U 100P-50CH 87-A91-024-180 SW-TACT KSHG611BT C611 87-010-831-080 C-CAP,U,0.1-16F 87-A91-024-180 SW-TACT KSHG611BT C612 87-010-831-080 C-CAP,U,0.1-16F 87-A91-024-180 SW-TACT KSHG611BT C613 87-010-831-080 C-CAP,U,0.1-16F...
  • Page 8 REF. NO. PART NO. KANRI DESCRIPTION REF. NO. PART NO. KANRI DESCRIPTION C110 87-010-831-080 C-CAP,U,0.1-16F C919 87-012-184-080 C-CAP,U 33P-50 CH C111 87-A12-063-040 CAP,E 220-10 SMG C920 87-012-184-080 C-CAP,U 33P-50 CH C112 87-A10-353-080 C-CAP,U0.22-10KB C921 87-012-180-080 C-CAP,U 22P-50 CH C113 87-010-831-080 C-CAP,U,0.1-16F C922 87-012-174-080...
  • Page 9 REF. NO. PART NO. KANRI DESCRIPTION REF. NO. PART NO. KANRI DESCRIPTION C251 87-A12-074-080 CAP,E 470-25 SMG DECK C.B CN201 87-A61-110-010 CONN,9P V TID-A PT250 8B-CLX-615-010 PT,EZ BCL-30 CON1 87-009-352-010 CONN,9P H WHT PH PT251 8B-MA6-675-010 PT,SUB BMA E (VRK) SFR1 87-024-581-010 SFR,3.3K H KVSF637A...

  • Page 10: Transistor Illustration

    TRANSISTOR ILLUSTRATION E C B B C E E C B B C E 2SA1980G 2SA1296GR 2SB1677 2SB1370E CSC4115BC 2SA1981Y 2SD2619 KTC3198GR 2SC2240(GR/BL) 2SD655E G D S 2SK2158 2SK3053 2SA1235F DTA144EKA 2SK360E 2SA1514K(S) DTC144EKA 2SC2620B KRA102S 2SC3052F KRA107S 2SC3906KR KTC3875GR 2SC5345SF/S(O) RT1N141C CSD1306E...

  • Page 11: Wiring – 1 (Main / Phone / Optical)

    WIRING – 1 (MAIN / PHONE / OPTICAL) – 11 –...

  • Page 12: Schematic Diagram – 1 (Main 1 / 2 / Phone / Optical / Head)

    SCHEMATIC DIAGRAM – 1 (MAIN 1 / 2 / PHONE / OPTICAL / HEAD) – 12 –...

  • Page 13: Schematic Diagram – 2 (Main 2 / 2 : Amp Section)

    SCHEMATIC DIAGRAM – 2 (MAIN 2 / 2 : AMP SECTION) – 13 –...

  • Page 14: Wiring – 2 (Front)

    WIRING – 2 (FRONT) – 14 –...

  • Page 15: Wiring – 3 (Fl)

    WIRING – 3 (FL) – 15 –...

  • Page 16: Schematic Diagram – 3 (Front / Fl / Deck / Frame / Drive)

    SCHEMATIC DIAGRAM – 3 (FRONT / FL / DECK / FRAME / DRIVE) – 16 –...

  • Page 17: Wiring – 4 (Cd / Cd – Drive / Cd – Load)

    WIRING – 4 (CD / CD – DRIVE / CD – LOAD) – 17 –...

  • Page 18: Schematic Diagram – 4 (Cd / Cd – Drive / Cd – Load)

    SCHEMATIC DIAGRAM – 4 (CD / CD – DRIVE / CD – LOAD) – 18 –...

  • Page 19: Wiring – 5 (Tuner)

    WIRING – 5 (TUNER) – 19 –...

  • Page 20: Schematic Diagram – 5 (Tuner)

    SCHEMATIC DIAGRAM – 5 (TUNER) – 20 –...

  • Page 21: Wiring – 6 (Pt)

    WIRING – 6 (PT) – 21 –...

  • Page 22: Schematic Diagram – 6 (Pt)

    SCHEMATIC DIAGRAM – 6 (PT) – 22 –...

  • Page 23: Wiring – 7 (Deck / Frame / Drive / Head)

    WIRING – 7 (DECK / FRAME / DRIVE / HEAD) – 23 –...

  • Page 24: Ic Block Diagram

    IC BLOCK DIAGRAM – 24 –...
  • Page 25 – 25 –...

  • Page 26: Fl (Hna – 11Ms25) Grid Assignment And Anode Connection

    FL (HNA – 11MS25) GRID ASSIGNMENT / ANODE CONNECTION GRID ASSIGNMENT ANODE CONNECTION – 26 –...

  • Page 27: Ic Description

    IC DESCRIPTION IC, LC78622NE Description Pin No. Pin Name – 27 –...
  • Page 28 Pin Name Description Pin No. – 28 –...
  • Page 29 IC, LA9241ML Description Pin No. Pin Name – 29 –...
  • Page 30 Pin Name Description Pin No. – 30 –...
  • Page 31 IC, LC876564V-5Y22 Pin No. Pin Name Description – 31 –...
  • Page 32 Pin No. Pin Name Description – 32 –...

  • Page 33: Adjustment (Tuner / Deck / Cd / Fl)

    ADJUSTMENT (TUNER / DECK / CD / FL) <TUNER SECTION> PWB TUNER PATTERN SIDE PARTS SIDE JW970 L902 IC991 L901 L908 L801 L802 L942 TC942 IC801 L941 CN991 L951 12 11 CN991 1. VT Adjustment (LW) DIGITAL MULTIMETER Requirement Measuring Device: Digital Multimeter Test Point: VT, GND Adjustment Point: L942 (1) Adjust the reception frequency of the set to 144 kHz.
  • Page 34 <MW/LW Adjustment> For MW/LW adjustment, do wiring and connection as in the following. 60cm Standard Signal Generator Connect to the respective measuring device 5. IF adjustment (MW) OSCILLOSCOPE Requirement Measuring Device: Oscilloscope and Millivoltmeter Test Point: Lch, Rch, GND Adjustment Point: L802 (1) Adjust the setting of Standard Signal Generator (hereinafter S.S.G) to 450 kHz of 30 % variation.
  • Page 35 <FM Adjustment> For adjusting FM, do wiring and connection as in the following. Standard Signal Generator Connect to the respective measuring device 9. Tracking Adjustment (FM) AC MILLIVOLTMETER Requirement Measuring device: Millivoltmeter Test Point: Lch, Rch, GND Adjustment Point: L901, L902, L904, L905 (1) Adjust the S.S.G setting to 108.0 MHz, 75 kHz variation and reduce the output level all the way.

  • Page 36: Deck Section

    <DECK SECTION> PWB MAIN PATTERN SIDE SFR352 SFR351 SP OUT Prepare the following before adjusting the deck. Preparation • Measuring Device: Audio Signal Generator / Attenuator / Wow & Flutter Meter (Frequency Counter) / Oscilloscope / Millivolmeter / Dummy Load (6 ohm). 1) Connect the set to the measuring device as shown in the following diagram.
  • Page 37 1. Checking Tape Speed Requirements Test Tape: TTA-100 (3 kHz) Test Point: Lch, Rch, GND Adjustment Point: SFR1 1) Insert the test tape (TTA-100), FWD play back the centre of the tape and check that the speed is 3,000 Hz ± 45 Hz. 2) RVS playback and check that ±...
  • Page 38 <CD SECTION> PWB CD R546 RIOP SFR501 FE IC501 IC651 CD Adjustment Method •Perform the adjustments after the machine enters the test mode. •Place the CD mechanism on level ground. •Equipment and tools required Measuring equipment: Oscilloscope (Use the probe of 10:1) Digital Multimeter (Use it in the DC Volt range) Jitter meter (Kikusui 6235) Test Disc:...
  • Page 39 4. Tracking Balance Check OSCILLOSCOPE 1) Connect the test point (TE), (VC) to the oscilloscope. 2) Playback the second track of TCD-782 and press the PAUSE button. OUTPUT 3) Check that the traverse waveforms of the oscilloscope are up and down symmetrical.

  • Page 40: Cd Test Mode

    CD TEST MODE 1. How to Start the CD Test Mode While pressing the CD FUNCTION button, insert the AC plug to the power outlet. When the test mode started, the message [CD TEST] is displayed. 2. How to Exit the CD Test Mode Press the POWER button or disconnect the AC plug.

  • Page 41: Mechanical Exploded View 1 / 1

    MECHANICAL EXPLODED VIEW 1 / 1 3ZG-3 HT-SINK, SUB B HT-SINK, ASSY MAIN 2 HT-SINK, SUB A AZM-1 CHAS,MAIN – 41 –...

  • Page 42: Mechanical Parts List 1 / 1

    MECHANICAL PARTS LIST 1 / 1 REF. NO. PART NO. KANRI DESCRIPTION REF. NO. PART NO. KANRI DESCRIPTION 8B-CLX-001-010 CABI,FR<EZ[S]> 88-910-171-110 FF-CABLE,10P 1.25 170MM 8B-CLX-022-010 CABI,FR K<K[S]> 8B-CLX-618-010 FF-CABLE,16P 1.0 150MM CD-PICK 8B-CLX-008-010 PANEL,TRAY CASS 88-906-081-110 FF-CABLE,6P 1.25 80MM 8B-CLX-010-010 KNOB,RTRY VOL 88-907-211-110 FF-CABLE,7P 1.25 210MM...

  • Page 43: Tape Mechanism Exploded View 1 / 2

    TAPE MECHANISM EXPLODED VIEW 1 / 2 6ZM-4 – 43 –...

  • Page 44: Tape Mechanism Parts List 1 / 2

    TAPE MECHANISM PARTLIST 1 / 2 REF. NO. PART NO. KANRI DESCRIPTION 8A-ZM1-214-010 PLATE,F STOPPER 8A-ZM1-223-010 SPR-T,LOCK F 8A-ZM1-209-010 GEAR,SLIDE B 8A-ZM1-233-010 FRAME,MAIN BL 8A-ZM1-215-210 LEVER ASSY,SLIDE L 8A-ZM1-217-010 LEVER ASSY,SLIDE R 8A-ZM1-212-010 LEVER,LOCK F 8A-ZM1-208-110 GEAR,SLIDE A 8A-ZM1-230-210 BELT,BASE 8A-ZM1-220-010 SPR-E,CLAMP 8A-ZM1-216-310...

  • Page 45: Tape Mechanism Exploded View 2 / 2

    TAPE MECHANISM EXPLODED VIEW 2 / 2 HEAD C.B DECK C.B PLATE,SHLD DECK HLDR,MOT L CUSH-G R7NM – 45 –...

  • Page 46: Tape Mechanism Parts List 2 / 2

    TAPE MECHANISM PARTLIST 2 / 2 REF. NO. PART NO. KANRI DESCRIPTION REF. NO. PART NO. KANRI DESCRIPTION 82-ZM1-224-410 LVR,FR 82-ZM1-358-010 CHAS ASSY,FPC 82-ZM1-258-210 SPR-T,PINCH L 82-ZM3-333-310 SLIP DISK ASSY 2 82-ZM1-338-110 BELT,FR 4 82-ZM1-363-010 LEVER,ASSY PINCH LD 82-ZM1-266-310 LVR,DIR 82-ZM1-305-210 SPR-E,TRIG 2 82-ZM1-227-310...

  • Page 47: Cd Mechanism Exploded View 1 / 2

    CD MECHANISM EXPLODED VIEW 1 / 2 3ZG-2 E3NM – 47 –...

  • Page 48: Cd Mechanism Parts List 1 / 2

    CD MECHANISM PARTS LIST 1 / 2 REF. NO. PART NO. KANRI DESCRIPTION 83-ZG3-224-510 HLDR M2 83-ZG3-228-610 CHAS,L6 83-ZG3-208-010 PULLEY,MOTOR 83-ZG3-213-010 LVR,SW 83-ZG3-209-610 CAM,SLIDE 83-ZG3-207-010 GEAR,TRAY 83-ZG3-204-210 GEAR,C 83-ZG3-205-010 GEAR,D 83-ZG3-219-010 PLATE,CLAMP 83-ZG3-220-210 GEAR,PULLEY 2 83-ZG3-214-010 BELT,L 83-ZG3-231-210 TRAY,CD 3 83-ZG3-230-110 HLDR,CHUCK 2(*) 86-ZG1-239-110...

  • Page 49: Cd Mechanism Exploded View 2 / 2

    CD MECHANISM EXPLODED VIEW 2 / 2 CD MECHANISM PARTS LIST 2 / 2 REF. NO. PART NO. KANRI DESCRIPTION 83-ZG2-262-010 CHAS ASSY,E3 87-A90-836-010 PICKUP,KSS-213F 83-ZG2-235-010 GEAR,A3 83-ZG2-236-010 GEAR,MOTOR 3 83-ZG2-205-310 GEAR,B 83-ZG2-253-010 SHAFT,SLIDE 5 83-ZG2-245-510 LEVER,SHUTTER(*) 83-ZG2-250-210 SPR-E,SHT 2 87-261-032-210 V+2-3 –...

  • Page 50: General Speaker Disassembly Instructions (For Reference)

    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. 2 (() flat head screwdriver 3 Cut chisel How to Remove the PANEL, FR...

  • Page 51: Speaker Parts List

    REF. NO. PART NO. KANRI DESCRIPTION 1 8B-CPX-002-010 RING,W 2 8B-CPX-003-010 RING,TW 3 8B-CPX-004-010 GRILLE,FRAME ASSY 4 8B-CPX-016-010 BADGE,AIWA 27.5 5 8B-CPX-602-010 SPKR,W 130 25/2 6 8A-CJ5-415-010 TERMINAL 7 8B-CP5-610-010 CORD,SPKR ACCESSORIES / PACKAGE LIST REF. NO. PART NO. KANRI...
  • Page 52 2–11, IKENOHATA 1–CHOME, TAITO-KU, TOKYO 110, JAPAN TEL:03 (3827) 3111 Printed in Singapore 9301978 921338...

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