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: Owner's Manual
QQ
3 7 63 1515 0
SERVICE MANUAL
TE
L 13942296513
COMPACT DISC
STEREO SYSTEM
XR-EM70
• This Service Manual is the “Revision Publishing” and replaces
“Simple Manual” of XR-EM70 <U,LH>, (S/M Code No. 09-01B-449-6T2).
www
.
http://www.xiaoyu163.com
COMPACT
SYSTEM
DISC
CX-LEM70
x
ao
y
i
S/M Code No. 09-022-449-6R2
http://www.xiaoyu163.com
XR-EM70
8
Q Q
3
6 7
1 3
BASIC TAPE MECHANISM : AZM-1 A4NM
BASIC CD MECHANISM : 3ZG-3 E13NM
SPEAKER
SX-LEM70
u163
.
U(S), LH(S)
2 9
9 4
2 8
1 5
0 5
8
2 9
9 4
REMOTE
CONTROLLER
RC-BAT15
m
co
9 9
2 8
9 9

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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 XR-EM70 CX-LEM70 SX-LEM70 RC-BAT15 • This Service Manual is the “Revision Publishing” and replaces “Simple Manual” of XR-EM70 <U,LH>, (S/M Code No. 09-01B-449-6T2). u163 S/M Code No. 09-022-449-6R2 http://www.xiaoyu163.com...

  • Page 2: Table Of Contents

    http://www.xiaoyu163.com TABLE OF CONTENTS 3 7 63 1515 0 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

    http://www.xiaoyu163.com SPECIFICATIONS 3 7 63 1515 0 MAIN UNIT CX-LEM70 CD PLAYER Laser Semiconductor laser (λ = 780 nm) TUNER D/A converter 1 bit dual FM tuning range 87.5 MHz to 108 MHz Signal-to-noise ratio 88 dB (1 kHz, 0 dB) FM usable sensitivity (IHF) 13.2 dBf Harmonic distortion...

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

    http://www.xiaoyu163.com PROTECTION OF EYES FROM LASER BEAM DURING SERVICING 3 7 63 1515 0 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

    http://www.xiaoyu163.com ELECTRICAL MAIN PARTS LIST 3 7 63 1515 0 REF. NO. PART NO. KANRI DESCRIPTION REF. NO. PART NO. KANRI DESCRIPTION C109 87-012-195-080 C-CAP,U 100P-50 J CH C110 87-012-195-080 C-CAP,U 100P-50 J CH 87-020-454-010 IC,DN6851 C111 87-A12-092-080 CAP,E 22-50 SMG 87-A21-831-010 IC,SPS-422-1-F1 C112...
  • Page 6 http://www.xiaoyu163.com 3 7 63 1515 0 REF. NO. PART NO. KANRI DESCRIPTION REF. NO. PART NO. KANRI DESCRIPTION C426 87-A12-088-080 CAP,E 2.2-50 SMG C873 87-012-280-080 C-CAP,U 3300P-50 K B C427 87-A12-088-080 CAP,E 2.2-50 SMG CN230 84-722-638-010 CONN,5P H WHT EH C439 87-A10-304-080 CAP,M 0.056-50 J...
  • Page 7 http://www.xiaoyu163.com 3 7 63 1515 0 REF. NO. PART NO. KANRI DESCRIPTION REF. NO. PART NO. KANRI DESCRIPTION 87-A91-687-010 SW,RTRY RE012104PV-VOL C659 87-010-831-080 C-CAP,U 0.1-16 Z F 87-A91-687-010 SW,RTRY RE012104PV-VOL C660 87-010-831-080 C-CAP,U 0.1-16 Z F 87-A92-291-010 SW,RTRY RE121PVB25FINB1-24E C661 87-012-266-080 C-CAP,U 220P-50 K B C662...
  • Page 8 http://www.xiaoyu163.com 3 7 63 1515 0 REF. NO. PART NO. KANRI DESCRIPTION REF. NO. PART NO. KANRI DESCRIPTION C772 87-012-286-080 C-CAP,U 0.01-25 K B C995 87-012-274-080 CHIP CAP,U 1000P-50 K B C784 87-012-286-080 C-CAP,U 0.01-25 K B C996 87-012-195-080 C-CAP,U 100P-50 J CH C785 87-012-286-080 C-CAP,U 0.01-25 K B...
  • Page 9 http://www.xiaoyu163.com 3 7 63 1515 0 REF. NO. PART NO. KANRI DESCRIPTION SFR1 87-024-581-010 SFR,3.3K H KVSF637A SOL2 82-ZM3-628-010 SOL ASSY,23SO 87-A90-248-010 SW,MICRO ESE11SH2CXQ 87-A90-248-010 SW,MICRO ESE11SH2CXQ 87-A90-248-010 SW,MICRO ESE11SH2CXQ 87-A90-248-010 SW,MICRO ESE11SH2CXQ 87-A90-248-010 SW,MICRO ESE11SH2CXQ 86-ZM4-601-110 RBN-CORD,4P-300MM FRAME C.B 87-A90-948-010 SW,LVR 2-1-2 MPU11263MLB0 DRIVE C.B...

  • Page 10: Transistor Illustration

    http://www.xiaoyu163.com TRANSISTOR ILLUSTRATION 3 7 63 1515 0 E C B E C B B C E B C E 2SA1296GR 2SA1980G 2SB1677 2SB1370E KTC3198GR 2SA1981Y 2SD2619 2SC2240(GR/BL) 2SD655E G D S E C B 2SC4115SRS 2SK2158 2SK3053 2SK360E L 13942296513 2SA1235F DTC144EKA 2SA1514K(S)

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

    http://www.xiaoyu163.com WIRING – 1 (MAIN / PHONE / OPTICAL) 3 7 6 3 1 5 1 5 0 1 3 9 4 2 2 9 6 5 1 3 w w w u 1 6 3 – 11 – http://www.xiaoyu163.com...

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

    http://www.xiaoyu163.com SCHEMATIC DIAGRAM – 1 (MAIN 1 / 2 / PHONE / OPTICAL / HEAD) 3 7 6 3 1 5 1 5 0 1 3 9 4 2 2 9 6 5 1 3 w w w u 1 6 3 –...

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

    http://www.xiaoyu163.com SCHEMATIC DIAGRAM – 2 (MAIN 2 / 2 : AMP SECTION) 3 7 6 3 1 5 1 5 0 1 3 9 4 2 2 9 6 5 1 3 w w w u 1 6 3 – 13 – http://www.xiaoyu163.com...

  • Page 14: Wiring – 2 (Front)

    http://www.xiaoyu163.com WIRING – 2 (FRONT) 3 7 6 3 1 5 1 5 0 1 3 9 4 2 2 9 6 5 1 3 w w w u 1 6 3 – 14 – http://www.xiaoyu163.com...

  • Page 15: Wiring – 3 (Fl)

    http://www.xiaoyu163.com WIRING – 3 (FL) 3 7 6 3 1 5 1 5 0 1 3 9 4 2 2 9 6 5 1 3 w w w u 1 6 3 – 15 – http://www.xiaoyu163.com...

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

    http://www.xiaoyu163.com SCHEMATIC DIAGRAM – 3 (FRONT / FL / DECK / FRAME / DRIVE) 3 7 6 3 1 5 1 5 0 1 3 9 4 2 2 9 6 5 1 3 w w w u 1 6 3 –...

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

    http://www.xiaoyu163.com WIRING – 4 (CD / CD-DRIVE / CD-LOAD) 3 7 6 3 1 5 1 5 0 1 3 9 4 2 2 9 6 5 1 3 w w w u 1 6 3 – 17 – http://www.xiaoyu163.com...

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

    http://www.xiaoyu163.com SCHEMATIC DIAGRAM – 4 (CD / CD – DRIVE / CD – LOAD) 3 7 6 3 1 5 1 5 0 1 3 9 4 2 2 9 6 5 1 3 w w w u 1 6 3 –...

  • Page 19: Wiring – 5 (Tuner)

    http://www.xiaoyu163.com WIRING – 5 (TUNER) 3 7 63 1515 0 L 13942296513 u163 – 19 – http://www.xiaoyu163.com...

  • Page 20: Schematic Diagram – 5 (Tuner)

    http://www.xiaoyu163.com SCHEMATIC DIAGRAM – 5 (TUNER) 3 7 6 3 1 5 1 5 0 1 3 9 4 2 2 9 6 5 1 3 w w w u 1 6 3 – 20 – http://www.xiaoyu163.com...

  • Page 21: Wiring – 6 (Pt)

    http://www.xiaoyu163.com WIRING – 6 (PT) 3 7 63 1515 0 L 13942296513 u163 – 21 – http://www.xiaoyu163.com...

  • Page 22: Schematic Diagram – 6 (Pt)

    http://www.xiaoyu163.com SCHEMATIC DIAGRAM – 6 (PT) 3 7 63 1515 0 L 13942296513 u163 – 22 – http://www.xiaoyu163.com...

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

    http://www.xiaoyu163.com WIRING –7 (DECK / FRAME /DRIVE / HEAD) 3 7 63 1515 0 L 13942296513 u163 – 23 – http://www.xiaoyu163.com...

  • Page 24: Ic Block Diagram

    http://www.xiaoyu163.com IC BLOCK DIAGRAM 3 7 6 3 1 5 1 5 0 1 3 9 4 2 2 9 6 5 1 3 w w w u 1 6 3 – 24 – http://www.xiaoyu163.com...
  • Page 25 http://www.xiaoyu163.com 3 7 63 1515 0 L 13942296513 u163 – 25 – http://www.xiaoyu163.com...

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

    http://www.xiaoyu163.com FL (HNA – 11MS25) GRID ASSIGNMENT / ANODE CONNECTION GRID ASSIGNMENT 3 7 63 1515 0 L 13942296513 ANODE CONNECTION u163 – 26 – http://www.xiaoyu163.com...

  • Page 27: Ic Description

    http://www.xiaoyu163.com IC DESCRIPTION IC, LC78622NE 3 7 63 1515 0 Description Pin No. Pin Name DEFI Defect detection signal (DEF) input. ("L" is applied when not used.) For PLL/Test input. (Connected to 0V) Phase comparison output to control the external VCO. VVSS –...
  • Page 28 http://www.xiaoyu163.com 3 7 63 1515 0 Pin Name Description Pin No. O-RCH Rch output. RVDD – Rch power supply. MUTE-R Rch muting output. (Not used) XVDD – Power supply of crystal oscillator. XOUT For the connection of a 16.934MHz crystal oscillator. XVSS –...
  • Page 29 http://www.xiaoyu163.com IC, LA9241ML 3 7 63 1515 0 Description Pin No. Pin Name For the connection of the pickup photodiode. Addition to the FIN1 pin creates an RF FIN2 signal and subtraction from it create an EF signal. FIN1 For the connection of the pickup photodiode. For the connection of the pickup photodiode.
  • Page 30 http://www.xiaoyu163.com 3 7 63 1515 0 Pin No. Pin Name Description SLOF Sled servo off control input. CV– CLV error signal input from the DSP. RFSM RF output. RFS– Sets the RF gain and the EFM signal's 3T compensation constant together with the RFSM pin. The SLC (slice level control) signal is output to control the DSP's data slice level of the RF waveform.
  • Page 31 http://www.xiaoyu163.com IC, LC876564V-5Y22 3 7 63 1515 0 Pin No. Pin Name Description O-COIN CD IC control data output. O-CDCONT CD block power ON / OFF control output. O-OPEN (CD) CD tray open data output. O-CLOSE (CD) CD tray close data output. O-OPEN (CT) Deck open / close output.
  • Page 32 http://www.xiaoyu163.com 3 7 63 1515 0 Pin No. Pin Name Description O-LED (TU) Tuner function LED ON / OFF. O-LED (AU) AUX function LED ON / OFF. O-LED (TA) Tape function LED ON / OFF. O-LED (PW) Power function LED ON / OFF. (Light up : ECO standby) O-ECO Relay switch ON / OFF output.

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

    http://www.xiaoyu163.com ADJUSTMENT (TUNER / DECK / CD / FL) <TUNER SECTION> 3 7 63 1515 0 PWB TUNER PARTS SIDE PATTERN SIDE L807 L804 JW970 IC991 L801 L802 L951 IC801 CN991 12 11 CN991 1. VT Check (AM) Requirement DIGITAL MULTIMETER Measuring Device: Digital Multimeter Test Point: VT, GND (1) Adjust the reception frequency of the set to 1710 kHz.
  • Page 34 http://www.xiaoyu163.com <AM Adjustment> 3 7 63 1515 0 For AM adjustment, do wiring and connection as in the following. 60cm Standard Signal Generator Connect to the respective measuring device Fig. 2 4. IF adjustment (AM) 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 1000 kHz of 30 % variation.
  • Page 35 http://www.xiaoyu163.com <FM Adjustment> 3 7 63 1515 0 For adjusting FM, do wiring and connection as in the following. Standard Signal Generator Connect to the respective measuring device 7. Tracking Adjustment (FM) AC MILLIVOLTMETER Requirement Measuring device: Millivoltmeter Test Point: Lch, Rch, GND Adjustment Point: L904 (1) Adjust the S.S.G setting to 98.0 MHz, 75 kHz variation and reduce the output level all the way.
  • Page 36 http://www.xiaoyu163.com <DECK SECTION> 3 7 63 1515 0 PWB MAIN PATTERN SIDE SFR352 SFR351 SP OUT L 13942296513 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 http://www.xiaoyu163.com 1. Checking Tape Speed 3 7 63 1515 0 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 http://www.xiaoyu163.com <CD SECTION> 3 7 63 1515 0 PWB CD R546 RIOP SFR501 FE IC501 IC651 L 13942296513 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 http://www.xiaoyu163.com 4. Tracking Balance Check OSCILLOSCOPE 3 7 63 1515 0 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

    http://www.xiaoyu163.com CD TEST MODE 3 7 63 1515 0 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

    http://www.xiaoyu163.com MECHANICAL EXPLODED VIEW 3 7 6 3 1 5 1 5 0 1 3 9 4 2 2 9 6 5 1 3 w w w u 1 6 3 – 41 – http://www.xiaoyu163.com...

  • Page 42: Mechanical Parts List 1 / 1

    http://www.xiaoyu163.com MECHANICAL PARTS LIST = ! SAFTY PARTS = Components marked All components used on this model at the production line are shown in this service manual. 3 7 63 1515 0 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 43: Color Name Table

    http://www.xiaoyu163.com COLOR NAME TABLE 3 7 63 1515 0 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...

  • Page 44: Tape Mechanism Exploded View 1 / 2

    http://www.xiaoyu163.com TAPE MECHANISM EXPLODED VIEW 1 / 2 3 7 63 1515 0 L 13942296513 6ZM-4 u163 – 44 – http://www.xiaoyu163.com...

  • Page 45: Tape Mechanism Parts List 1 / 2

    http://www.xiaoyu163.com TAPE MECHANISM PARTS LIST 1 / 2 3 7 63 1515 0 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 46: Tape Mechanism Exploded View 2 / 2

    http://www.xiaoyu163.com TAPE MECHANISM EXPLODED VIEW 2 / 2 3 7 6 3 1 5 1 5 0 1 3 9 4 2 2 9 6 5 1 3 w w w u 1 6 3 R7NM – 46 – http://www.xiaoyu163.com...

  • Page 47: Tape Mechanism Parts List 2 / 2

    http://www.xiaoyu163.com TAPE MECHANISM PARTS LIST 2 / 2 = ! SAFTY PARTS = Components marked All components used on this model at the production line are shown in this service manual. 3 7 63 1515 0 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 http://www.xiaoyu163.com = ! SAFTY PARTS = Components marked All components used on this model at the production line are shown in this service manual. 3 7 63 1515 0 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 49: Cd Mechanism Exploded View 1 / 2

    http://www.xiaoyu163.com CD MECHANISM EXPLODED VIEW 1 / 2 3 7 63 1515 0 L 13942296513 u163 – 49 – http://www.xiaoyu163.com...

  • Page 50: Cd Mechanism Parts List 1 / 2

    http://www.xiaoyu163.com CD MECHANISM PARTS LIST 1 / 2 = ! SAFTY PARTS = Components marked All components used on this model at the production line are shown in this service manual. 3 7 63 1515 0 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: Cd Mechanism Exploded View 2 / 2

    http://www.xiaoyu163.com CD MECHANISM EXPLODED VIEW 2 / 2 3 7 63 1515 0 L 13942296513 u163 – 51 – http://www.xiaoyu163.com...

  • Page 52: Cd Mechanism Parts List 2 / 2

    http://www.xiaoyu163.com CD MECHANISM PARTS LIST 2 / 2 = ! SAFTY PARTS = Components marked All components used on this model at the production line are shown in this service manual. 3 7 63 1515 0 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 53: General Speaker Disassembly Instructions (For Reference)

    http://www.xiaoyu163.com GENERAL SPEAKER DISASSEMBLY INSTRUCTIONS (FOR REFERENCE) 3 7 63 1515 0 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 54: Speaker Parts List

    http://www.xiaoyu163.com SPEAKER PARTS LIST <SX – LEM70 (YJMN)> 3 7 63 1515 0 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-606-010 SPKR,TW 25 5 8B-CPX-602-010 SPKR,W 130 25/2 6 8A-CJ5-415-010 TERMINAL 7 8B-CP5-610-010 CORD,SPKR...
  • Page 55 http://www.xiaoyu163.com 3 7 63 1515 0 L 13942296513 u163 2-11, IKENOHATA 1-CHOME, TAITO-KU, TOKYO 110-8710, JAPAN TEL:03 (3827) 3111 9301978 921338 http://www.xiaoyu163.com...

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