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

Aiwa XR-EM70 Service Manual

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All manuals and user guides at all-guides.com
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
SPEAKER
DISC
CX-LEM70
SX-LEM70
CX-LEM71
S/M Code No. 09-019-449-6R1
K
EZ
REMOTE
CONTROLLER
RC-BAT15

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  • 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

    All manuals and user guides at all-guides.com 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 –...

  • Page 3: Specifications

    All manuals and user guides at all-guides.com 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...

  • Page 4: 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 5: 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 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...
  • Page 6 All manuals and user guides at all-guides.com 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...
  • Page 7 All manuals and user guides at all-guides.com 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...
  • Page 8 All manuals and user guides at all-guides.com 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...
  • Page 9 All manuals and user guides at all-guides.com 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)

  • Page 10: Transistor Illustration

    All manuals and user guides at all-guides.com TRANSISTOR ILLUSTRATION E C B B C E B C E E C B 2SA1296GR 2SA1980G 2SB1677 2SB1370E CSC4115BC 2SA1981Y 2SD2619 2SC2240(GR/BL) KTC3198GR 2SD655E G D S 2SK2158 2SK3053 2SK360E 2SA1235F DTA144EKA 2SA1514K(S) DTC144EKA 2SC2620B KRA102S...

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

    All manuals and user guides at all-guides.com WIRING – 1 (MAIN / PHONE / OPTICAL) – 11 –...

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

    All manuals and user guides at all-guides.com SCHEMATIC DIAGRAM – 1 (MAIN 1 / 2 / PHONE / OPTICAL / HEAD) – 12 –...

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

    All manuals and user guides at all-guides.com SCHEMATIC DIAGRAM – 2 (MAIN 2 / 2 : AMP SECTION) – 13 –...

  • Page 14: Wiring – 2 (Front)

    All manuals and user guides at all-guides.com WIRING – 2 (FRONT) – 14 –...

  • Page 15: Wiring – 3 (Fl)

    All manuals and user guides at all-guides.com WIRING – 3 (FL) – 15 –...

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

    All manuals and user guides at all-guides.com SCHEMATIC DIAGRAM – 3 (FRONT / FL / DECK / FRAME / DRIVE) – 16 –...

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

    All manuals and user guides at all-guides.com WIRING – 4 (CD / CD – DRIVE / CD – LOAD) – 17 –...

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

    All manuals and user guides at all-guides.com SCHEMATIC DIAGRAM – 4 (CD / CD – DRIVE / CD – LOAD) – 18 –...

  • Page 19: Wiring – 5 (Tuner)

    All manuals and user guides at all-guides.com WIRING – 5 (TUNER) – 19 –...

  • Page 20: Schematic Diagram – 5 (Tuner)

    All manuals and user guides at all-guides.com SCHEMATIC DIAGRAM – 5 (TUNER) – 20 –...

  • Page 21: Wiring – 6 (Pt)

    All manuals and user guides at all-guides.com WIRING – 6 (PT) – 21 –...

  • Page 22: Schematic Diagram – 6 (Pt)

    All manuals and user guides at all-guides.com SCHEMATIC DIAGRAM – 6 (PT) – 22 –...

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

    All manuals and user guides at all-guides.com WIRING – 7 (DECK / FRAME / DRIVE / HEAD) – 23 –...

  • Page 24: Ic Block Diagram

    All manuals and user guides at all-guides.com IC BLOCK DIAGRAM – 24 –...
  • Page 25 All manuals and user guides at all-guides.com – 25 –...

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

    All manuals and user guides at all-guides.com FL (HNA – 11MS25) GRID ASSIGNMENT / ANODE CONNECTION GRID ASSIGNMENT ANODE CONNECTION – 26 –...

  • Page 27: Ic Description

    All manuals and user guides at all-guides.com IC DESCRIPTION IC, LC78622NE Description Pin No. Pin Name – 27 –...
  • Page 28 All manuals and user guides at all-guides.com Pin Name Description Pin No. – 28 –...
  • Page 29 All manuals and user guides at all-guides.com IC, LA9241ML Description Pin No. Pin Name – 29 –...
  • Page 30 All manuals and user guides at all-guides.com Pin Name Description Pin No. – 30 –...
  • Page 31 All manuals and user guides at all-guides.com IC, LC876564V-5Y22 Pin No. Pin Name Description – 31 –...
  • Page 32 All manuals and user guides at all-guides.com Pin No. Pin Name Description – 32 –...

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

    All manuals and user guides at all-guides.com 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...
  • Page 34 All manuals and user guides at all-guides.com <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 All manuals and user guides at all-guides.com <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 All manuals and user guides at all-guides.com <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).
  • Page 37 All manuals and user guides at all-guides.com 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 All manuals and user guides at all-guides.com <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)
  • Page 39 All manuals and user guides at all-guides.com 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

    All manuals and user guides at all-guides.com 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.

  • Page 41: Mechanical Exploded View 1 / 1

    All manuals and user guides at all-guides.com 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

    All manuals and user guides at all-guides.com 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...

  • Page 43: Tape Mechanism Exploded View 1 / 2

    All manuals and user guides at all-guides.com TAPE MECHANISM EXPLODED VIEW 1 / 2 6ZM-4 – 43 –...

  • Page 44: Tape Mechanism Parts List 1 / 2

    All manuals and user guides at all-guides.com 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...

  • Page 45: Tape Mechanism Exploded View 2 / 2

    All manuals and user guides at all-guides.com 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

    All manuals and user guides at all-guides.com TAPE MECHANISM PARTLIST 2 / 2 REF. NO. PART NO. KANRI DESCRIPTION REF. NO. PART NO. KANRI DESCRIPTION 82-ZM1-358-010 CHAS ASSY,FPC 82-ZM1-224-410 LVR,FR 82-ZM3-333-310 SLIP DISK ASSY 2 82-ZM1-258-210 SPR-T,PINCH L 82-ZM1-363-010 LEVER,ASSY PINCH LD 82-ZM1-338-110 BELT,FR 4 82-ZM1-266-310...

  • Page 47: Cd Mechanism Exploded View 1 / 2

    All manuals and user guides at all-guides.com CD MECHANISM EXPLODED VIEW 1 / 2 3ZG-2 E3NM – 47 –...

  • Page 48: Cd Mechanism Parts List 1 / 2

    All manuals and user guides at all-guides.com 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...

  • Page 49: Cd Mechanism Exploded View 2 / 2

    All manuals and user guides at all-guides.com 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(*)

  • Page 50: 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 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 All manuals and user guides at all-guides.com 2–11, IKENOHATA 1–CHOME, TAITO-KU, TOKYO 110, JAPAN TEL:03 (3827) 3111 Printed in Singapore 9301978 921338...

This manual is also suitable for:

Xr-em71Cx-lem70Cx-lem71Sx-lem70Rc-bat15

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