Aiwa LCX-157 EZ Service Manual
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Aiwa LCX-157 EZ Service Manual

Aiwa LCX-157 EZ Service Manual

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SERVICE MANUAL
COMPACT DISC STEREO
SYSTEM
This Service Manual is the "Revision Publishing" and replaces "Simple Manual"
(S/M Code No. 09-003-340-1T1).
All manuals and user guides at all-guides.com
LCX-157
BASIC TAPE MECHANISM : TN-21ZSC-2003
BASIC CD MECHANISM : DA11T3C
S/M Code No. 09-003-340-1R1
EZ(S)

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  • Page 1 All manuals and user guides at all-guides.com LCX-157 EZ(S) SERVICE MANUAL COMPACT DISC STEREO BASIC TAPE MECHANISM : TN-21ZSC-2003 SYSTEM BASIC CD MECHANISM : DA11T3C This Service Manual is the "Revision Publishing" and replaces "Simple Manual" (S/M Code No. 09-003-340-1T1). S/M Code No.

  • Page 2: Specifications

    All manuals and user guides at all-guides.com SPECIFICATIONS • Design and specifications are subject to change without notice.

  • Page 3: 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 This set employs laser. Therefore, be sure to follow carefully the CAUTION instructions below when servicing. Use of controls or adjustments or performance of procedures other than those specified herein may result in hazardous WARNING! radiation exposure.

  • Page 4: 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 C115 87-010-112-080 CAP, ELECT 100-16V C116 87-010-101-080 CAP, ELECT 220-16 87-A20-734-010 IC,TDA2007A C118 87-010-263-080 CAP, ELECT 100-10V 87-A21-443-040 C-IC,M62495AFP C119...
  • Page 5 All manuals and user guides at all-guides.com REF. NO PART NO. KANRI DESCRIPTION REF. NO PART NO. KANRI DESCRIPTION C712 87-010-196-080 CHIP CAPACITOR,0.1-25 C910 87-012-286-080 CAP, U 0.01-25 C713 87-012-286-080 CAP, U 0.01-25 C940 87-012-286-080 CAP, U 0.01-25 C714 87-012-286-080 CAP, U 0.01-25 C942 87-012-172-080...
  • Page 6 All manuals and user guides at all-guides.com REF. NO PART NO. KANRI DESCRIPTION REF. NO PART NO. KANRI DESCRIPTION S216 87-A90-095-080 SW,TACT EVQ11G04M C568 87-010-197-080 CAP, CHIP 0.01 DM S217 87-A90-095-080 SW,TACT EVQ11G04M C571 87-010-248-080 CAP, ELECT 220-10V S218 87-A90-095-080 SW,TACT EVQ11G04M C572 87-010-196-080...

  • Page 7: Transistor Illustration

    All manuals and user guides at all-guides.com FL (13-ST-36GNAK) GRID ASSIGNMENT/ANODE CONNECTION GRID ASSIGNMENT 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...
  • Page 8 All manuals and user guides at all-guides.com WIRING-1 (MAIN) MAIN C.B MAIN C.B (INSERTED PARTS) (CHIP PARTS) DC JACK J103 PHONES J102 SPEAKERS J101 J801 ANTENNA MW/LW LOOP (DECK MOTOR) (MOTOR SW) 75Ω (PLAY SW) (COXIAL) NOTE AC C.B AC C.B (INSERTED PARTS) (CHIP PARTS) PT101...
  • Page 9 All manuals and user guides at all-guides.com IC BLOCK DIAGRAM IC, M62495AFP IC, LA6541D IC, LA1837NL IC, LC72131D...
  • Page 10 All manuals and user guides at all-guides.com SCHEMATIC DIAGRAM-1 (MAIN 1/2) TO MAIN C.B 2/2 MAIN C.B (1/2) J101 JACK. PIN 3P MSP J105 INV. SPEAKERS IC102 FUNCTION SWITCH HOLD DET HOLD DET POWER AMP J101 JACK. 3.5 ST PHONES IC301 CASSETTE F101...
  • Page 11 All manuals and user guides at all-guides.com SCHEMATIC DIAGRAM-2 (MAIN 2/2) MAIN C.B (2/2) DC BALANCE 2.2µH AM IF ADJ BAND TUNER ON//OFF SWITCH FM IF J801 ANTENNA FM 75Ω MW/LW LOOP BEAT AM RF AMP MW/LW SW IC771 FM/AM IF/STEREO L773 TUNER SYSTEM D944...
  • Page 12 All manuals and user guides at all-guides.com WIRING-2 (CD/FRONT: INSERTED PARTS) FRONT C.B (INSERTED PARTS) LCD201 (DISPLAY) CD C.B (INSERTED PARTS) REMOTE SENSOR POWER S101 (DOOR SW) TIMER/ PLAY/CLEAR SLEEP /PAUSE ROCK TUNER/BAND JAZZ STOP/START LED C.B (INSERTED PARTS) NOTE Cxxx Rxxx E C B...
  • Page 13 All manuals and user guides at all-guides.com WIRING-3 (CD/FRONT: CHIP PARTS) FRONT C.B (CHIP PARTS) CD C.B (CHIP PARTS) LED C.B (CHIP PARTS) MOTOR C.B (SLED MOTOR) CN510 (INSIDE LIMIT SW) OPTICAL PICK UP (SPINDLE MOTOR) SF-P101NR...
  • Page 14 All manuals and user guides at all-guides.com SCHEMATIC DIAGRAM-3 (FRONT)
  • Page 15 All manuals and user guides at all-guides.com SCHEMATIC DIAGRAM-4 (CD)

  • Page 16: Voltage Chart

    All manuals and user guides at all-guides.com VOLTAGE CHART...
  • Page 17 All manuals and user guides at all-guides.com...

  • Page 18: Electrical Adjustment

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

  • Page 19: Practical Service Figure

    All manuals and user guides at all-guides.com PRACTICAL SERVICE FIGURE < TUNER SECTION > < LW SECTION > < FM SECTION > IHF Sensitivity: 15dB±5dB (at 90MHz) Sensitivity: 58±5dB (at 144kHz) 55±5dB (at 198kHz) (THD 3%) 14dB±5dB (at 98.0/108.0MHz) 52±5dB (at 290kHz) Signal to noise ratio: More than 55dB (Input 54dB)
  • Page 20 All manuals and user guides at all-guides.com IC DESCRIPTION IC, LC867240A-5P15 Pin No. Pin Name Description O-SCONTM M62439SP control. open drain output. O-SCONTL O-DATA Tuner control. CMOS output. ___________ I-TUNE/IFC Tuner control. O-TUCL Tuner control. CMOS output. O-COIN CD control. open drain output. I-SQOUT CD control.
  • Page 21 All manuals and user guides at all-guides.com Pin No. Pin Name Description __________ I-STOP Tape stop input. 83-86 COM0-COM3 LCD common output. I-INIT Initial setting input. ______ I-AC/DC Beat selector output. “H” during selection. CMOS output . VSS3 — GND. VDD3 —...
  • Page 22 All manuals and user guides at all-guides.com IC, LA9241ML Pin No. Pin Name Description Pin to which external pickup photo diode is connected. RF signal is created by adding FIN2 with the FIN1 pin signal. FE signal is created by subtracting from the FIN1 pin signal. FIN1 Pin to which external pickup photo diode is connected.
  • Page 23 All manuals and user guides at all-guides.com Pin No. Pin Name Description Pin from which TES signal is output to DSP. “High Frequency Level” is used to judge whether the main beam position is on top of bit or on top of mirror. SLOF Sled servo off control input pin.
  • Page 24 All manuals and user guides at all-guides.com IC, LC78622E Pin No. Pin Name Description DEFI Defect sense signal (DEF) input pin. (Connect to 0V when not used). Test signal input pin with built-in pull-down resistor. Be sure to connect to 0V. Phase comparator output pin to control external VCO.
  • Page 25 All manuals and user guides at all-guides.com Pin No. Pin Name Description XVDD — Crystal oscillator power supply pin. XOUT Pin to which external 16.9344 MHz crystal oscillator is connected. XVSS — Crystal oscillator GND pin. Be sure to connect to 0V. SBSY Subcode block sync signal output pin.

  • Page 26: Mechanical Parts List

    AC CORD ASSY,E BLK SUN FAI 4 8Z-CL8-209-010 SPR-T,CASS 29 8A-CLA-626-010 PT,EZ ACL-A 5 8A-CLB-017-010 WINDOW,DISP RDS 30 8Z-CDB-169-010 PANEL,CD SANYO 6 87-B00-002-010 BADGE,AIWA 30 ABS SIL 31 8Z-CL8-206-010 SPR-P,REC 7 8Z-CL8-204-010 CUSH,FOOT 32 8Z-CL8-214-010 DMPR,HLDR BE 8 8A-CLB-021-010 CABI,FR EZ 33 84-CD5-215-010...

  • Page 27: Mechanical Exploded View

    All manuals and user guides at all-guides.com MECHANICAL EXPLODED VIEW 1/1 P.C.B HT-SINK P.C.B TN-21ZSC CHAS, MAIN P.C.B...

  • Page 28: Tape Mechanism Exploded View

    All manuals and user guides at all-guides.com TAPE MECHANISM EXPLODED VIEW 1/1 TAPE MECHANISM PARTS LIST 1/1 LUG PLATE REF. NO PART NO. KANRI DESCRIPTION REF. NO PART NO. KANRI DESCRIPTION 1 S1-921-030-4A0 HEAD BASE 36 S1-921-140-220V REC BUTTON LEVER 2 S1-821-030-070 AZIMUTH SPRING 37 S1-921-140-170...

  • Page 29: Cd Mechanism Exploded View

    All manuals and user guides at all-guides.com CD MECHANISM EXPLODED VIEW 1/1 SHAFT,SLIDE SF-P101NR CHASSIS SPINDLE MOTOR C,B MOTOR(M3) CD MECHANISM PARTS LIST 1/1 REF. NO PART NO. KANRI DESCRIPTION 1 S2-121-A28-400 COVER GEAR 2 S2-511-A21-000 GEAR MIDDLE 3 S2-511-A21-100 GEAR,DRIVE A S1-PN2-03R-OSE SCR PAN PCS 2-3...

  • Page 30: Speaker Parts List

    FRAME,SPKR 4 86-CL9-214-010 HLDR,CORD(SPKR) 5 8Z-CL7-107-010 BADGE,AIWA SILVER 6 8Z-CL8-904-110 CORD,SPKR GRY • The speakers that are supplied with the following models, are dedicated speakers for their respective models. Speakers of LCX-137 and those of LCX-157 have completely the same outside appearance but have no compatibility each other.

  • Page 31: Accessories/Package List

    All manuals and user guides at all-guides.com ACCESSORIES/PACKAGE LIST REF. NO PART NO. KANRI DESCRIPTION 1 8A-CLB-906-010 IB,EZ(9L)B 2 87-A90-030-010 ANT,LOOP AM-NC C 3 87-A90-118-010 ANT,WIRE FM (Z) 4 87-A91-017-010 PLUG,CONVERSION JT-0476 5 8A-CLB-961-010 RC UNIT,RC-AAT11...
  • Page 32 All manuals and user guides at all-guides.com 2–11, IKENOHATA 1–CHOME, TAITO-KU, TOKYO 110, JAPAN TEL:03 (3827) 3111 737004 Printed in Singapore...

This manual is also suitable for:

Lcx-157ezs

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