Aiwa XR-EM52 Service Manual
Aiwa XR-EM52 Service Manual

Aiwa XR-EM52 Service Manual

Cd stereo system

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SERVICE MANUAL
CD STEREO SYSTEM
t
SYSTEM
XR–EM52
• This Service Manual is the "Revision Publishing" and replaces "Simple Manual"
of XR-EM52 <EZ(S)>, (S/M Code No. 09-022-455-9T1).
XR-EM52
BASIC TAPE MECHANISM : CMAL1Z223A
BASIC CD MECHANISM : 3ZG-3 E2NC
CD
CASSEIVER
CX–LEM52
r
S/M Code No. 09-023-455-9R1
u
a
o
REMOTE
SPEAKER
CONTROLLER
SX–LEM52
RC–CAS06
EZ(S)

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Table of Contents
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Summary of Contents for Aiwa XR-EM52

  • Page 1 CD STEREO SYSTEM BASIC CD MECHANISM : 3ZG-3 E2NC REMOTE SYSTEM SPEAKER CASSEIVER CONTROLLER XR–EM52 CX–LEM52 SX–LEM52 RC–CAS06 • This Service Manual is the “Revision Publishing” and replaces “Simple Manual” of XR-EM52 <EZ(S)>, (S/M Code No. 09-022-455-9T1). S/M Code No. 09-023-455-9R1...
  • Page 2: Table Of Contents

    TABLE OF CONTENTS SPECIFICATIONS ................................3 PROTECTION OF EYES FROM LASER BEAM DURING SERVICING ................ 4 ELECTRICAL PARTS LIST (CX – LEM52) ........................ 5 ~ 14 ELECTRICAL PARTS LIST (CZA – 3) ........................15 ~ 17 ELECTRICAL PARTS LIST (3ZG – 3) ..........................18 ELECTRICAL PARTS LIST (3ZG –...
  • Page 3: Specifications

    SPECIFICATIONS TUNER GENERAL FM tuning range 87.5 MHz to 108 MHz Power requirements 230 V AC, 50 Hz FM usable sensitivity (IHF) 16.8 dBf Power consumption 60 W FM antenna terminal 75 ohms (unbalanced) Power consumption in standby mode MW tuning range 531 kHz to 1602 kHz (9 kHz step) With ECO mode on: 0.7 W 530 kHz to 1710 kHz (10 kHz step)
  • 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 Parts List (Cx - Lem52)

    ELECTRICAL PARTS LIST (CX – LEM52) = ! SAFETY 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 6 = ! SAFETY 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. 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.
  • Page 7 = ! SAFETY 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. 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.
  • Page 8 = ! SAFETY 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. 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.
  • Page 9 = ! SAFETY 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. 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.
  • Page 10 = ! SAFETY 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. 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.
  • Page 11 = ! SAFETY 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. 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.
  • Page 12 = ! SAFETY 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. 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.
  • Page 13 = ! SAFETY 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. 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.
  • Page 14 = ! SAFETY 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. 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.
  • Page 15: Electrical Parts List (Cza - 3)

    ELECTRICAL PARTS LIST (CZA – 3) = ! SAFETY 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 = ! SAFETY 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. 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.
  • Page 17 = ! SAFETY 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. 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.
  • Page 18: Electrical Parts List (3Zg - 3)

    ELECTRICAL PARTS LIST (3ZG - 3) = ! 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 (3Zg - 2)

    ELECTRICAL PARTS LIST (3ZG - 2) = ! 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: Chip Resistor Part Code

    CHIP RESISTOR PART CODE Chip Resistor Part Coding Figure Resistor Code Value of resistor Chip resistor Dimensions (mm) Wattage Type Tolerance Symbol Resistor Code Form 1/16W 1005 0.35 1/16W 1608 0.45 1/10W 2125 1.25 0.45 1/8W 3216 0.55 TRANSISTOR ILLUSTRATION B C E 2SA1162GR 2SK2158...
  • Page 21: Wiring - 1 (Main) <1 / 2

    WIRING – 1 (MAIN) <1 / 2> J603 J601 AUDIO IN SUB WOOFER MAIN C.B (COMPONENT SIDE) NOTE : TO CD C.B CN301A RXXX LXXX (FFC601) FBXXX CXXX CXXX J241 SPEAKERS 1 3 5 CXXX SPEAKER IMP : 6 LXXX XXXX E C B QXXX...
  • Page 22: Wiring - 1 (Main) <2 / 2

    WIRING – 1 (MAIN) <2 / 2> MAIN C.B (CONDUCTOR SIDE) NOTE : RXXX CXXX JRXXX FBXXX QXXX DXXX DXXX QXXX – 22 –...
  • Page 23: Schematic Diagram - 1 (Main / Key (1 / 2))

    SCHEMATIC DIAGRAM – 1 (MAIN / KEY (1 / 2)) KEY C.B (1/2) TO TUNER C.B CN991 MAIN PHONES 2SC2712GR 1000p (FFC502) J601 1000p 0.01 AUDIO IN J241 F-BEAD 843556 SPEAKERS SPEAKER IMP : 6 4700p J603 8.2K SUB WOOFER Q261 ~ 263 2.7K Q4, Q202 ~ 210,...
  • Page 24: Wiring - 2 (Front) <1 / 2

    WIRING – 2 (FRONT) <1 / 2> FRONT C.B (COMPONENT SIDE) FL301 IC303 (DISPLAY) REMOTE SENSOR NOTE : RXXX JWXXX CXXX CXXX E C B QXXX DXXX – 24 –...
  • Page 25: Wiring - 2 (Front) <2 / 2

    WIRING – 2 (FRONT) <2 / 2> FRONT C.B (CONDUCTOR SIDE) R337 R338 (KSCAN) NOTE : RXXX CXXX JRXXX FBXXX QXXX DXXX – 25 –...
  • Page 26: Schematic Diagram - 2 (Front / Deck)

    SCHEMATIC DIAGRAM – 2 (FRONT / DECK) FRONT FL301 IC,RPM6938-V4 FL,11-BT-193GNK (DISPLAY) (FFC502) 100/16W J 100/16W J 100/16W J R9 NM 100/16W J R8 NM PULLCE 100/16W J R7 22K TUON R6 NM RDS- TMPASE R5 22K 0.0012 (KSCAN) NOTE: NM: NO MOUNT 15K/16W RXXX...
  • Page 27: Wiring - 3 (Cd) <1 / 2

    WIRING – 3 (CD) <1 / 2> CD C.B NOTE : RXXX (COMPONENT SIDE) LXXX CXXX XXXX E C B QXXX 2 4 6 1214 8 10 3 5 7 9 1113 15 (FFC1) TO CD MECHANISM 3ZG-3 E2NC – 27 –...
  • Page 28: Wiring - 3 (Cd) <2 / 2

    WIRING – 3 (CD) <2 / 2> CD C.B (CONDUCTOR SIDE) NOTE: RXXX CXXX – 28 –...
  • Page 29: Schematic Diagram - 3 (Cd / Drive / Load)

    SCHEMATIC DIAGRAM – 3 (CD / DRIVE / LOAD) JW205 F-BEAD 843556 JW207 JW206 JW126 100 JW127 CD-R F-BEAD 843556 F-BEAD 843556 CD-L (FFC601) JW128 0.01 Q101 SUPPLY SWITCH (CONT3) (FSEQ) (V/P) (DEFECT) F-BEAD 843556 (FFC401) CON402 (CLOSE) (OPEN) (LOADING MOTOR) CN402 (FFC402) LOAD...
  • Page 30: Wiring - 4 (Tuner)

    WIRING – 4 (TUNER) (COAXIAL) – 30 –...
  • Page 31: Schematic Diagram - 4 (Tuner)

    SCHEMATIC DIAGRAM – 4 (TUNER) – 31 –...
  • Page 32: Wiring - 5 (Pt)

    WIRING – 5 (PT) PT C.B NOTE : AC 230V 50HZ RXXX CXXX – 32 –...
  • Page 33: Schematic Diagram - 5 (Pt)

    SCHEMATIC DIAGRAM – 5 (PT) PT C.B PT101 (CNA101) PT, EZ RY102 AC 12V CN101 G5PA-1-M PR101 R102 PT,SUB BNF E (TAM) AC 230V 50 HZ NOTE: NM: NO MOUNT RXXX – 33 –...
  • Page 34: Wiring - 6 (Key) <1 / 2

    WIRING – 6 (KEY) <1 / 2> KEY C.B S307 S305 S303 J231 (COMPONENT SIDE) TONE PHONES JW64 J231 LED301 STANDBY / ON S308 S314 S301 S313 S311 S312 S351 POWER ( TUNING ) CLEAR ( TUNING ) REC / REC PAUSE VOLUME SYNCHRO REC STANDBY / ON...
  • Page 35: Wiring - 6 (Key) <2 / 2

    WIRING – 6 (KEY) <2 / 2> KEY C.B (CONDUCTOR SIDE) NOTE : RXXX CXXX – 35 –...
  • Page 36: Schematic Diagram - 6 (Key (2 / 2))

    SCHEMATIC DIAGRAM – 6 (KEY (2 / 2)) KEY C.B (2/2) REC / TAPE TUNER / SYNCHRO REC REC PAUSE CLEAR (REC MUTE) BAND CD OPEN / POWER CLOSE TONE STANDBY / ON CN3 (FFC303) S313 ( TUNING ) ECO-LED S311 ( TUNING ) KEY1...
  • Page 37: Wiring - 7 (Deck / Drive / Load)

    WIRING – 7 (DECK / DRIVE / LOAD) LOAD C.B CON402 (FFC402) TO CD C.B CN402 TO CD C.B CN201 (FFC201) CON201 DECK C.B DRIVE C.B – 37 –...
  • Page 38: Ic Block Diagram

    IC BLOCK DIAGRAM – 38 –...
  • Page 39 – 39 –...
  • Page 40: Fl (11 - Bt - 193Gnk) Grid Assignment And Anode Connection

    FL (11 – BT – 193GNK) GRID ASSIGNMENT AND ANODE CONNECTION GRID ASSIGNMENT ANODE CONNECTION – 40 –...
  • Page 41: Ic Description

    IC DESCRIPTION IC, LC876764A-5Z31 Pin No. Pin Name Description O-COCK CD control Q code clock signal output. O-RWC CD control command LAT signal output. O-CDIN CD control command data signal output. I-WRQ CD control SCOR signal input. I-DRF CD control focus OK input. I-SQOUT CD control Q code input.
  • Page 42 Pin No. Pin Name Description O-G9 VFD driver control data signal output. O-G10 VFD driver control data signal output. O-G11 VFD driver control data signal output. O-P1 VFD driver control data signal output. VDD3 Digital power supply pin. O-P2 VFD driver control data signal output. O-P3 VFD driver control data signal output.
  • Page 43 Pin No. Pin Name Description Not connected. Not connected. KSCAN Initial scan input. O-MUTE Mute signal output. O-BIAS Bias ON/OFF output. O-TU_ON Tuner power supply ON/OFF output. AVSS Connected to GND. VDD2 Digital power supply pin. I-RDDA RDS data input. I-ST Stereo/Mono control signal input.
  • Page 44 Pin No. Pin Name Description Focus control output terminal. D/A output. SPDO Spindle control output terminal. D/A output. SLDO Sled control ouput terminal. D/A output. GPDAC Servo D/A common output terminal. (Not used) CONT4 Common input/output terminal 4. (Used as a CD driver mute pin) CONT5 Common input/output terminal 5.
  • Page 45 Pin No. Pin Name Description LRSY L/R clock output terminal. (Not used) DATACK Bit clock output terminal. (Not used) DATA L/R channel data output terminal. (Not used) Chip enable signal input terminal. Data transfer clock input terminal. Data input terminal. Data output terminal.
  • Page 46: Voltage Chart

    VOLTAGE CHART – 46 –...
  • Page 47 – 47 –...
  • Page 48 – 48 –...
  • Page 49: Adjustment

    ADJUSTMENT < FRONT SECTION > FRONT C.B (COMPONENT SIDE) FRONT C.B (CONDUCTOR SIDE) IC301 FL301 IC301 85pin L301 1. CLOCK ADJUSTMENT Requirements Test point: TP1(IC301 85pin), GND Adjustment point: L301 1) While pressing and holding down the POWER button and the TUNER / BAND button, insert the AC plug to outlet.
  • Page 50 < DECK SECTION > MAIN C.B (CONDUCTOR SIDE) L451 JW38 C652+(Rch) C651+(Lch) TAPE MECHANISM DECK C.B MOTOR R/P HEAD – 50 –...
  • Page 51 1.TAPE SPEED ADJUSTMENT Requirements Measuring equipments : Wow & flutter meter (frequency counter ) Test Tape: TTA-100 (3kHz) Test point: C651(Lch),C652(Rch),GND WOW&FLUTTER METER Adjustment point : Tape speed adjustment point (motor) INPUT 1) Connect Test point to the Wow & flutter meter. 2) Insert the test tape (TTA-100), play back center of the tape and adjust the motor adjustment point until it becomes 3,000Hz +3 / -2%.
  • Page 52 < TUNER SECTION > TUNER C.B (COMPONENT SIDE) TUNER C.B (CONDUCTOR SIDE) CN991 L952 GND 8pin CN991 L953 TP8 11pin TP9 12pin IC991 L941 L942 TC942 L905 R962 TP1(24pin) L902 R815 L904 IC801 IC801 L802 L901 L907 1.CLOCK CHECK Requirement Measuring equipment: Frequency counter FREQUENCY COUNTER Test point: TP1 (CLK), GND...
  • Page 53 5.DC BALANCE CHECK (FM) Requirement Measuring equipment: Digital multi-meter DIGITAL MULTIMETER Test point: TP2, 3 (1) Adjust the reception frequency of the main unit to 98.0MHz. (2) Check that the test point voltage difference between TP2 and TP3 is 0mV 500mV. <LW / MW ADJUSTMENT>...
  • Page 54 8.TRACKING ADJUSTMENT (LW) Requirement AC MILLIVOLTMETER Measuring equipment: Millivoltmeter Test point: TP8(Lch), TP9(Rch), GND Adjustment point: L941, TC942 (1) Adjust the S.S.G. setting to 144kHz of 30% variation and reduce the output level all the way (till a certain degree of is monitored through the oscilloscope). (2) Adjust the reception frequency of the main unit to 144kHz.
  • Page 55 < CD SECTION > CD C.B (PATTERN SIDE) IC202 Vref JW103 JW102 IC101 CD CHECK Perform the adjustments after the main unit enters the test mode. Place the CD mechanism on level ground. Equipment and tools required Measuring equipment Digital multi-meter Jitter meter (KIKUSUI 6235) Test disc: TCD-782 ATD-001...
  • Page 56 3.TRACKING BALANCE CHECK 1) Connect the TE and Vref to the oscilloscope. OSCILLOSCOPE 2) Playback the second track of TCD-782 and press the PAUSE button. 3) Check that the traverse waveforms of oscilloscope are up and down symmetrical. OUTPUT Vref A = B VOLT / DIV: 100mV TIME / DIV: 1ms...
  • Page 57: 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 58: Mechanical Exploded View

    MECHANICAL EXPLODED VIEW – 58 –...
  • Page 59: Mechanical Parts List

    87-067-703-010 RH/TS 3 x L10mm (B-TYPE) (BRI CX-LEM52 EZSC 0 MC1B 87-581-170-410 BH/ MS 4 x L8mm SCREW 0 MC1C 87-B10-230-010 RH/TS 3xL10mm,PLATING:NICKEL 0 MC1D 87-B10-118-010 KH/TS 3 x L12 mm (A133012003) 0 MC1E 87-067-579-010 RH/TS 3xL8mm (B-TYPE) (AIWA : – 59 –...
  • Page 60: Color Name Table

    COLOR NAME TABLE 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 61: Tape Mechanism Exploded View

    TAPE MECHANISM EXPLODED VIEW 34 36 – 61 –...
  • Page 62: Tape Mechanism Parts List

    TAPE MECHANISM PARTS LIST = ! SAFETY 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 63: Cd Mechanism Exploded View 1 / 2 <3Zg - 3

    CD MECHANISM EXPLODED VIEW 1 / 2 <3ZG – 3> – 63 –...
  • Page 64: Cd Mechanism Parts List 1 / 2 (3Zg - 3)

    CD MECHANISM PARTS LIST 1 / 2 (3ZG – 3) = ! SAFETY 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 65: Cd Mechanism Exploded View 2 / 2 <3Zg - 2

    CD MECHANISM EXPLODED VIEW 2 / 2 <3ZG – 2> – 65 –...
  • Page 66: Cd Mechanism Parts List 2 / 2 (3Zg - 2)

    CD MECHANISM PARTS LIST 2 / 2 (3ZG – 2) = ! SAFETY 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 67: 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 68: Speaker Parts List (Sx - Lem52)

    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-LEM52 YJMN 8B-CPX-016-010 BADGE,AIWA 27.5 8C-CP5-005-010 TUBE, 8C-CP5-007-010 CORD,SPKR O 8C-CP5-008-010 CORD,BUSH O 8C-CPS-001-010 LBL,SPEC YJ 8C-CPS-002-010 RING,SP 8C-CPS-003-010 CABI,M...
  • Page 69: Accessories Parts List (Cx - Lem52)

    ACCESSORIES PARTS LIST (CX – LEM52) = ! SAFETY 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 70: Other Parts List (Cx - Lem52)

    OTHER PARTS LIST (CX – LEM52) = ! SAFETY 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 71: Other Parts List (Cza - 3)

    OTHER PARTS LIST (CZA – 3) = ! SAFETY 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 72: Other Parts List (3Zg - 3)

    OTHER PARTS LIST (3ZG – 3) = ! SAFETY 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 73 2-11, IKENOHATA 1-CHOME, TAITO-KU, TOKYO 110-8710, JAPAN TEL:03 (3827) 3111 9301944 9430209 921338...

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