Aiwa XR-MD201 Service Manual
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Aiwa XR-MD201 Service Manual

Aiwa XR-MD201 Service Manual

Md/cd stereo system
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SERVICE MANUAL
MD/CD STEREO SYSTEM
SYSTEM
XR-MD201
XR-MD200
This Service Manual is the "Revision Publishing" and replaces "Simple Manual"
(S/M Code No.09-995-329-3T1).
• BASIC MD MECHANISM : 7ZG-9B
• BASIC CD MECHANISM : KSM-620AAA
RECEIVER
RX-LMD201
RX-LMD200
S/M Code No. 09-995-329-3R1
XR-MD201
XR-MD200
SPEAKER
MD/CD
FD-LMD201
SX-LM200
FD-LMD200
SX-LM200
EZ(S)
K(S)

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Summary of Contents for Aiwa XR-MD201

  • Page 1 XR-MD201 EZ(S) XR-MD200 K(S) SERVICE MANUAL • BASIC MD MECHANISM : 7ZG-9B MD/CD STEREO SYSTEM • BASIC CD MECHANISM : KSM-620AAA SYSTEM RECEIVER SPEAKER MD/CD XR-MD201 RX-LMD201 FD-LMD201 SX-LM200 XR-MD200 RX-LMD200 FD-LMD200 SX-LM200 This Service Manual is the “Revision Publishing” and replaces “Simple Manual”...

  • Page 2: Table Of Contents

    TABLE OF CONTENTS SPECIFICATIONS ............................... 3, 4 ACCESSORIES/PACKAGE LIST ..........................3 PROTECTION OF EYES FROM LASER BEAM DURING SERVICING/ Precaution to replace Optical block.......................... 5 DISASSEMBLY INSTRUCTIONS ......................... 6-9 MODEL NO. RX-LMD200/LMD201 ELECTRICAL MAIN PARTS LIST ........................10-12 TRANSISTOR ILLUSTRATION ..........................12 BLOCK DIAGRAM ............................

  • Page 3: Specifications

    SPECIFICATIONS K MODEL • Design and specifications are subject to change without notice. • Dolby noise reduction manufactured under license from Dolby Laboratories Licensing Corporation. “DOLBY” and the double-D symbol are trademarks of Dolby Laboratories Licensing Corporation. • The word “BBE” and the “BBE symbol” are trademarks of BBE Sound,Inc.
  • Page 4 EZ MODEL • Design and specifications are subject to change without notice. • Dolby noise reduction manufactured under license from Dolby Laboratories Licensing Corporation. “DOLBY” and the double-D symbol are trademarks of Dolby Laboratories Licensing Corporation. • The word “BBE” and the “BBE symbol” are trademarks of BBE Sound,Inc.

  • Page 5: Protection Of Eyes From Laser Beam During Servicing

    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 6: Disassembly Instructions

    DISASSEMBLY INSTRUCTIONS Remove the two screws. Remove the two screws.
  • Page 7 Remove the screw. While moving up the rear in the direction as shown, remove the PANEL, TOP together with the entire CD MECA.
  • Page 8 Remove the seven screws and remove the PANEL, REAR FD. The CD MECA can be removed when the two screws are removed.
  • Page 9 Remove the seven screws. The CABI, FR FD can be removed when the claws on both sides are removed and are pulled to the front.

  • Page 10: Model No. Rx-Lmd200/Lmd201

    MODEL NO. RX-LMD200/LMD201 ELECTRICAL MAIN PARTS LIST REF. NO PART NO. KANRI DESCRIPTION REF. NO PART NO. KANRI DESCRIPTION C183 87-010-322-080 C-CAP,S 100P-50 J CH C184 87-010-322-080 C-CAP,S 100P-50 J CH 87-070-127-110 IC,LC72131 D C185 87-010-322-080 C-CAP,S 100P-50 J CH 87-A20-913-010 IC,LA1837NL C186...
  • Page 11 REF. NO PART NO. KANRI DESCRIPTION REF. NO PART NO. KANRI DESCRIPTION C225 87-012-157-080 C-CAP,S 330P-50 J CH C755 87-012-286-080 CAP, U 0.01-25 C226 87-012-157-080 C-CAP,S 330P-50 J CH C756 87-012-286-080 CAP, U 0.01-25 C265 87-010-546-080 CAP, ELECT 0.33-50V C757 87-012-188-080 C-CAP,U 47P-50 CH C266...

  • Page 12: Transistor Illustration

    REF. NO PART NO. KANRI DESCRIPTION REF. NO PART NO. KANRI DESCRIPTION CN701 87-A60-650-010 CONN,16P H GRY TUC-P16X-C1<EZ> L941 87-A50-020-010 COIL,ANT LW(COI) FFE801 A8-6ZA-191-130 6ZA-1 FEENM L942 87-A50-019-010 COIL,OSC LW(COI) J801 87-033-241-010 TERMINAL,ANT AJ-2039 L981 8Z-ZA1-665-010 COIL,AM PACK 2(TOK) L771 87-A50-266-010 COIL,FM DET-2N(TOK) TC942...

  • Page 13: Block Diagram

    BLOCK DIAGRAM IC301 LC866532A...

  • Page 14: Wiring-1 (Power Amp)

    WIRING-1 (POWER AMP) AC 230V 50Hz...

  • Page 15: Schematic Diagram-1 (Power Amp)

    SCHEMATIC DIAGRAM-1 (POWER AMP) R261 Q261,262 MUTE R262...

  • Page 16: Wiring-2 (Front)

    WIRING-2 (FRONT)

  • Page 17: Schematic Diagram-2 (Front)

    SCHEMATIC DIAGRAM-2 (FRONT) IC301 LC866532A-5L31...

  • Page 18: Wiring-3 (Tuner)

    WIRING-3 (TUNER) TO TU INF C.B CN114 (K MODEL) CN117 (EZ MODEL) MW / LW...

  • Page 19: Schematic Diagram-3 (Tuner)

    SCHEMATIC DIAGRAM-3 (TUNER) BAND BUFFER LOOP BAND SW TU+B MW TRACKING BAND EZ MODEL LW TRACKING L941,TC942 L772 L771 MW IF ADJ DC BALLANCE / MONO DISTORTION SIGNAL : FM :MW/LW TUNER C.B...

  • Page 20: Electrical Adjustment

    ELECTRICAL ADJUSTMENT PRACTICAL SERVICE FIGURE < TUNER SECTION > < TUNER SECTION > < FM SECTION > 1. Clock Frequency Check IHF Sensitiviy: Less than 13dB Settings: • Test point: TP2 (CLK IC770 pin30) (THD 3%) (at 108.0/98.0MHz) Method: Set to MW 1602kHz and check that the test Less than 14dB point becomes 2052kHz±45Hz (EZ).

  • Page 21: Ic Description

    IC DESCRIPTION IC, LC866532A-5L31RX Pin No. Pin Name Description ________________ I-MACMD Command input from master microprocessor. O-SCMD Serial data output to master microprocessor. 1-RDSDATA RDS data input. ___________ O-PAMP Power supply control output (power supply ON/OFF of POWER AMP). — O-CLK Connected to TUNER PLL IC LC72131 pin-5 CL.
  • Page 22 Pin No. Pin Name Description VDD2 — Microprocessor power supply. (µ-com 5V). 91, 92 P04, P05 — O-MUTE Main mute output. — 95-97 P10-12 — O-MASI Serial data output to master microprocessor. ____________ I-MASO Serial data input from master microprocessor. I-MACLK Transfer clock input from master microprocessor.

  • Page 23: Ic Block Diagram

    IC BLOCK DIAGRAM FL (13-ST-36GNAK) GRID ASSIGNMENT/ANODE CONNECTION IC, BU1920FS GRID ASSIGNMENT IC, LA1837 ANODE CONNECTION IC, LC72131...

  • Page 24: Mechanical Exploded View 1/1

    MECHANICAL EXPLODED VIEW 1/1 P.C.B MECHANICAL PARTS LIST 1/1 REF. NO PART NO. KANRI DESCRIPTION REF. NO PART NO. KANRI DESCRIPTION 1 8Z-CL1-056-010 WINDOW,DISP EX<200KS> 18 8Z-CL1-654-010 F-CABLE,2P 2.5 170MM SUBPT 1 8Z-CL1-055-010 WINDOW,DISP EZ<201EZS> 19 87-A90-460-010 HLDR,WIRE 2.5-7P 2 8Z-CL1-031-010 PLATE,FL 20 8Z-CL1-623-010 PT,E...

  • Page 25: Model No. Fm-Lmd200/Lmd201

    MODEL NO. FM-LMD200/LMD201 ELECTRICAL MAIN PARTS LIST REF. NO PART NO. KANRI DESCRIPTION REF. NO PART NO. KANRI DESCRIPTION 87-010-553-040 CAP,E 47-16 GAS 87-012-349-080 C-CAP,S 1000P-50 CH 87-A20-707-010 C-IC,CXA2523AR 87-010-198-080 CAP, CHIP 0.022 87-A20-708-010 C-IC,CXD2652AR 87-010-264-040 CAP,E 100-10 87-A20-709-040 C-IC,BD7910FV 87-010-264-040 CAP,E 100-10 87-ZG9-607-010...
  • Page 26 REF. NO PART NO. KANRI DESCRIPTION REF. NO PART NO. KANRI DESCRIPTION C221 87-010-235-080 CAP,E 470-16 SME C612 87-010-197-080 CAP, CHIP 0.01 DM C222 87-010-101-080 CAP, ELECT 220-16 C621 87-010-401-080 CAP, ELECT 1-50V C223 87-010-381-080 CAP, ELECT 330-16V C622 87-010-401-080 CAP, ELECT 1-50V C241 87-010-493-040...

  • Page 27: Transistor Illustration

    REF. NO PART NO. KANRI DESCRIPTION REF. NO PART NO. KANRI DESCRIPTION REF. NO PART NO. KANRI DESCRIPTION REF. NO PART NO. KANRI DESCRIPTION CNA101 88-802-051-290 CONN ASSY,5P C307 87-010-831-080 C-CAP,U,0.1-16F L100 87-A50-117-080 C-COIL,10UHLQH3C R424 87-025-564-080 C-RES,U M/F 47K D M101 87-A91-069-010 MOT,RF-370CA15370...

  • Page 28: Block Diagram-1 (Cd)

    BLOCK DIAGRAM-1 (CD)

  • Page 29: Block Diagram-2 (Md)

    BLOCK DIAGRAM-2 (MD)

  • Page 30: Wiring-1 (Cd)

    WIRING-1 (CD) CD C.B (COMPONENT SIDE)
  • Page 31 CD C.B (CONDUCTOR SIDE)

  • Page 32: Schematic Diagram-1 (Cd 1/2)

    SCHEMATIC DIAGRAM-1 (CD 1/2)

  • Page 33: Schematic Diagram-2 (Cd 2/2)

    SCHEMATIC DIAGRAM-2 (CD 2/2) -5M36 RESET...

  • Page 34: Wiring-2 (Function)

    WIRING-2 (FUNCTION)

  • Page 35: Schematic Diagram-3 (Function)

    SCHEMATIC DIAGRAM-3 (FUNCTION)

  • Page 36: Wiring-3 (Md)

    WIRING-3 (MD) (COMPONENT SIDE) (CONDUCTOR SIDE) TO/FROM MAIN C.B TO/FROM CD C.B CN502...

  • Page 37: Schematic Diagram-4 (Md)

    SCHEMATIC DIAGRAM-4 (MD) FC400 FC401 LOAD...

  • Page 38: Test Mode

    WIRING-4 (MECHANISM) TEST MODE 1. CD Test Mode 1-1. How to Start Up the CD Test Mode While pressing the “CD OPEN/CLOSE” button, connect the AC plug to the power outlet. When the CD test mode is started up, When the CD test mode starts up, all displays turn on. Note: When the PANEL, TOP has been removed for each CHAS, GEAR, be sure to short pin-4 and pin-5 of the connector CN3 on the CD board in order to recognize that the CD lid is closed.
  • Page 39 Note: 1. If operation of the mechanism shows any abnormality during the test mode, disconnect the AC plug immediately. 2. The playback and recording operations are not possible during the test mode. 3. There can be a case that a disc cannot be inserted. In such a case, insert the disc a little and press the “CD ™ MD DIRECT REC”...
  • Page 40 2-7. Checking Operation of OWH (Over Write Head) The OWH can be moved up and down by pressing the “CD ™ MD DIRECT REC” and the “EJECT” buttons in the state of loading-completed. “CD ™ MD DIRECT REC” button ......OWH DOWN “EJECT”...
  • Page 41 2-9. Adjustment Mode Name of adjustment: Temperature compensation adjustment Test point: Check the indication on the display. Jig: Thermometer Adjustment procedure: 1) Start up the MD test mode and press the 9 button to show the message “ALL SV OFF” on display. 2) Press the “DISPLAY”...

  • Page 42: Service Jig And Tools

    When using the PIT disc for adjustment: Insert the test disc TGYS-1. Press the 9 button to show “ALL SV OFF” on display. When the “MD function” button is pressed, “AUTO ADJ” is shown on display. When adjustment is completed, “DONE” is displayed.

  • Page 43: Electrical Adjustment

    ELECTRICAL ADJUSTMENT CD C.B (VREF) (RF) SFR130 (TE) Note: • Connect a probe (10: 1) of the oscilloscope test point 2. Tracking Balance Check for adjustment. Oscilloscope (DC range) • Connect ground (-) terminal of oscilloscope probe to TP3 (VREF) for all adjustment. 1.

  • Page 44: Ic Description

    IC DESCRIPTION IC, LC866548V-5M36 Pin No. Pin Name Description O-MACMD Command output to slave microprocessor. ____________ I-SCMD Command input from slave microprocessor. Serial data send/receive preparation completion output for MD UNIT control. (TAPE O-ARDY REC MUTE output). Serial data transfer request for MD UNIT control. (FWD/RWD switching output O-SREQ during TAPE PLAY/REC).
  • Page 45 Pin No. Pin Name Description I-OIRT I-RDS _________ I-BBE INITIAL DIODE MATRIX input. _______________ I-DOLBY _______ I-TAPE/MD _____________ I-DEMO 66-71 PE2-PE7 VDD4 — Microprocessor power supply. (µ-com 5V). DECK MECA MAIN MOTOR control output. 74, 75 PF1, PF2 DECK MECA SUB control output. 76, 77 PF3, PF4 —...
  • Page 46 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 47 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. 39, 40 CV–, CV+ CLV error signal input pin from DSP.
  • Page 48 IC, LC78622ED 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. VVSS —...
  • Page 49 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. EFLG C1, C2, single and dual correction monitoring pin.
  • Page 50 IC, CXD2652AR Pin No. Pin Name Description MNT0 Monitor output terminal. MNT1 Monitor output terminal. MNT2 Monitor output terminal. MNT3 Monitor output terminal. SWDT Microprocessor serial interface data input. SCLK Microprocessor serial interface shift clock input. XLAT Microprocessor serial interface latch input. Latched at falling down edge. SRDT Microprocessor serial interface data output.
  • Page 51 Pin No. Pin Name Description Address output to external DRAM. Address output to external DRAM. (Not used). DVSS — Digital GND. External DRAM output enable. ________ XCAS CAS output to external DRAM. Address output to external DRAM. ________ XRAS RAS output to external DRAM. Write enable for external DRAM.
  • Page 52 Pin No. Pin Name Description DCHG Connected to the low impedance power supply. Error signal input to the laser digital APC. ADFG ADIP2 binary-converted FM signal (22.05±1 kHz) input. F0CNT Current source setting output terminal to CXA2523. XLRF Latch output for CXA2523 control. Latched at rise-up. CKRF Shift clock output for CXA2523 control.
  • Page 53 IC, CXA2523AR Pin No. Pin Name Description Input “I” RF signal converted to I-V. Input “J” RF signal converted to I-V. Output voltage for VCC/2. Input current for main beam servo signal A. Input current for main beam servo signal B. Input currentt for main beam servo signal C.
  • Page 54 Pin No. Pin Name Description COMPP User comparator non-inverted input pin. (Connected to GND) ADDC Capacitor connection pin for ADIP amplifier on return circuit. Output pin for user operational amplifier. (Not used) Non-inverted input pin for user operational amplifier. RF amplifier output pin. Check point for eye pattern. MORFI Input pin where Groove RF signal is AC coupled.
  • Page 55 IC, CXP81952M Pin No. Pin Name Description MCAS — MRAS — Not used. — AMUTE Audio mute signal output. Serial clock output for EEPROM interface. Serial data output for EEPROM interface. Serial data input for EEPROM interface. EEPROM interface chip select signal output. —...
  • Page 56 Pin No. Pin Name Description ARDY Ready signal input for system control interface. Serial data input for system control interface. SOUT Serial data output for system control interface. ACLK Serial clock output for system control interface. XLAT CXD2652 interface latch signal output. XRST CXD2652 reset signal output.
  • Page 57 Pin No. Pin Name Description — — Not used. — Connected to VSS. — Open. (Not used) — Connected to VSS. — Connected to VDD. — — — Not used. DRVMUTE BA5970FP mute signal output. — — — — Not used. —...

  • Page 58: Ic Block Diagram

    IC BLOCK DIAGRAM IC, BA3880FS IC, MM1454XFBE VREF – QSurround BIAS – ROUT LOUT IC, M62495FP...
  • Page 59 IC, BA5936 Rog CURRENT DETECTOR TERMINAL IC, BA5970FP IC, BA6417F...
  • Page 60 IC, BD7910FV IC, AK4519VF...
  • Page 61 IC, CXA2523AR ADIP AMP TE/SE AMP PEAK 3TADJ EQADJ FE AMP RF AGC VREF AGC I FOCNT XSTBY COMPO COMPP XLAT ADDC SCLK COMMAND I/F SWDT TEMP R TEMP AMP TEMP 1 MORFI MORFO I-V AMP 11 12...

  • Page 62: Mechanical Exploded View 1/1

    MECHANICAL EXPLODED VIEW 1/1 P.C.B P.C.B P.C.B P.C.B PANEL,REAR FD P.C.B KSM-620AAA 7ZG-9B HT-SINK,MD P.C.B P.C.B CHAS,MAIN FD...

  • Page 63: Mechanical Parts List 1/1

    MECHANICAL PARTS LIST 1/1 REF. NO PART NO. KANRI DESCRIPTION REF. NO PART NO. KANRI DESCRIPTION 1 8Z-CL1-014-010 PANEL,CD 26 8Z-CL1-020-010 CAP, STOP 2 8Z-CL1-012-010 WINDOW,CD 27 8Z-CL1-021-010 CAP, PLAY 3 8Z-CL1-004-010 CABI,TOP FD 28 8Z-CL1-022-010 CAP, REW 4 8Z-CL1-007-010 BOX,CD 29 8Z-CL1-023-010 CAP, FF...

  • Page 64: Cd Mechanism Exploded View 1/1

    CD MECHANISM EXPLODED VIEW 1/1 CD MECHANISM PARTS LIST 1/1 REF. NO PART NO. KANRI DESCRIPTION 1 98-820-063-030 KSS-620A(RP) 2 9X-264-638-910 SLED SCREW ASSY 3 9A-491-219-9A0 SLED MOTOR ASSY 4 9X-264-648-210 MD ASSY 5 92-627-751-020 GEAR BN 6 92-646-914-010 LACK SPRING 7 92-646-913-010 HOLDER A 92-646-352-010...

  • Page 65: Md Mechanism Exploded View 1/3

    MD MECHANISM EXPLODED VIEW 1/3 HLDR,SHLD TOP CUSH-R,MECHA RE 7ZG-8 A2 CUSH-R,MECHA FR CUSH-R,MECHA RE CUSH-R,MECHA FR P.C.B HLDR,SHLD BOT MD MECHANISM PARTS LIST 1/3 REF. NO PART NO. KANRI DESCRIPTION 1 87-ZG9-602-010 FF-CABLE,21P 0.5 90MM 2 87-ZG9-603-010 FF-CABLE,8P 1.0 120MM 3 87-ZG9-604-010 FF-CABLE,5P 1.25 100MM A 87-ZG9-209-010...

  • Page 66: Md Mechanism Exploded View 2/3

    MD MECHANISM EXPLODED VIEW 2/3 7ZG-3 A2...

  • Page 67: Md Mechanism Parts List 2/3

    MD MECHANISM PARTS LIST 2/3 REF. NO PART NO. KANRI DESCRIPTION REF. NO PART NO. KANRI DESCRIPTION 1 87-ZG8-220-110 PLATE ASSY,LATCH 16 87-ZG8-225-310 LEVER ASSY,CAM 2 87-ZG8-259-010 SPR-T,LATCH 17 87-ZG8-239-110 CAM,LOAD 3 87-ZG8-230-110 LEVER,LATCH 18 87-ZG8-257-210 LEVER ASSY,REC 4 87-ZG8-224-110 SPR-E,LATCH 19 87-ZG8-213-210 PLATE,SLIDE R...

  • Page 68: Md Mechanism Exploded View 3/3

    MD MECHANISM EXPLODED VIEW 3/3 PLATE,YOKE HLDR LED GEAR, LEAD P.C.B...

  • Page 69: Md Mechanism Parts List 3/3

    MD MECHANISM PARTS LIST 3/3 REF. NO PART NO. KANRI DESCRIPTION REF. NO PART NO. KANRI DESCRIPTION 1 87-ZG3-202-510 CHAS ASSY,OUT-SERT 16 87-A90-616-010 MOT,FF-N30VA 2 87-ZG3-214-210 SPR-T,SPINDLE-A 17 87-A90-611-010 SW,PUSH 3-2-2 MPU20300MLB0 3 83-ZG5-308-010 BRG,1.5-2 A 87-261-547-310 V+2-3 BLK (1) 4 83-ZG5-302-110 TURN TABLE,MD1 B 87-263-523-310...

  • Page 70: Model No. Sx-Lmd200

    MODEL NO. SX-LMD200 SPEAKER DISASSEMBLY INSTRUCTIONS 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 andthen remove the speaker units. 2 (-) flat head screwdriver 3 Cut chisel Type.2...

  • Page 71: Speaker Parts List 1/1

    SPEAKER PARTS LIST 1/1 REF. NO PART NO. KANRI DESCRIPTION 1 8Z-CP1-012-010 CORD,SP 2 8Z-CP1-006-010 GRILLE,FRAME ASSY<YJTN> 2 8Z-CP1-017-010 GRILLE,FRAME ASSY B<YJBN> 3 8Z-CP1-003-010 PANEL,FR<YJTN> 3 8Z-CP1-015-010 PANEL,FR B<YJBN> 4 8Z-CP1-005-010 PANEL,TW<YJTN> 4 8Z-CP1-016-010 PANEL,TW B<YJBN> 5 8Z-CP1-601-010 SPKR, W 100 6 88-CL1-937-010 SPKR,TW 25...
  • Page 72 2–11, IKENOHATA 1–CHOME, TAITO-KU, TOKYO 110, JAPAN TEL:03 (3827) 3111 Printed in Singapore 931196...

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