Aiwa LCX-MD211 Service Manual
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Aiwa LCX-MD211 Service Manual

Aiwa LCX-MD211 Service Manual

Md/cd stereo system
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SERVICE MANUAL
MD/CD STEREO SYSTEM
MODEL CODE : 8ACJB-0130(S)
8ACJB-0140(D)
8ACJB-0180(L)
• This Service Manual is the “Revision Publishing” and replaces “Simple Manual”
LCX-MD210(D), LCX-MD211(EZ),(S/M Code No. 09-003-429-4T2).
SYSTEM
LCX-MD211
S/M Code No. 09-007-429-4R2
LCX-MD211
BASIC TAPE MECHANISM : TN-21ZSC-2003
BASIC CD MECHANISM : DA11T3C
BASIC MD MECHANISM : AZG-4 A
SPEAKER
SX-MD210
REMOTE
CONTROLLER
RC-AAT11
EZ

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  • Page 1 BASIC MD MECHANISM : AZG-4 A MODEL CODE : 8ACJB-0130(S) 8ACJB-0140(D) 8ACJB-0180(L) REMOTE SYSTEM SPEAKER CONTROLLER LCX-MD211 SX-MD210 RC-AAT11 • This Service Manual is the “Revision Publishing” and replaces “Simple Manual” LCX-MD210(D), LCX-MD211(EZ),(S/M Code No. 09-003-429-4T2). S/M Code No. 09-007-429-4R2...

  • Page 2: Specifications

    SPECIFICATIONS MAIN UNIT Compact disc player section FM tuner section Laser Semiconductor laser (l = 780nm) D-A converter 1 bit linear Tuning range 87.5 MHz to 108 MHz Wow and flutter Unmeasureable Antenna terminals 75 ohms (unbalanced) MD recorder section MW tuner section Scanning method Non-contact optical scanner...

  • Page 3: 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 4 DISASSEMBLY INSTRUCTION 1. Removing CD Mechanism, CHAS, CD 1-1. Remove 12 screws (BVT2+3-10). Pull the panel, L in the rear direction, and press it in the bottom direction to remove it. 1-2. Remove the panel, R in the same way as for L. 1-3.
  • Page 5 1-4. Release the tabs on both sides at the top of front cabinet, and lift the rear of CHAS, CD to remove the CHAS, CD, CD mechanism and CD C.B. in one unit. 2. Removing MD Mechanism 2-1. Remove the panel, rear. –...
  • Page 6 2-2. Remove two screws (BVT2+3-10) that fix the CHAS, MD to the CHAS, MAIN. 2-3. Remove two QT2+3-8 screws at the bottom of both sides of front cabinet. Remove two BVT2+3-10 screws from the bottom of CHAS, MAIN. Remove the BXT2+3-6 screw that fixes the CHAS, MD to the MAIN C.B.
  • Page 7 2-4. Release the tabs of front cabinet, and remove the CHAS, MAIN with the power transformer C.B. 2-5. Remove two screws (BVT2+3-10) that fix the CHAS, MD to the front cabinet. Disconnect the flat cables (14P, 18P) from the MD mechanism, and remove the sheets that hold the cables.

  • Page 8: Electrical Main Parts List

    ELECTRICAL MAIN PARTS LIST REF. NO. PART NO. KANRI DESCRIPTION REF. NO. PART NO. KANRI DESCRIPTION C204 87-010-197-080 CAP, CHIP 0.01 DM C225 87-010-401-080 CAP, ELECT 1-50V C226 87-010-401-080 CAP, ELECT 1-50V 87-A20-459-010 C-IC,LC78622ED 87-A21-213-010 IC,BA17808T C227 87-018-208-080 CAP 0.047-50F C228 87-018-208-080 CAP 0.047-50F...
  • Page 9 REF. NO. PART NO. KANRI DESCRIPTION REF. NO. PART NO. KANRI DESCRIPTION C709 87-012-195-080 C-CAP,U 100P-50CH C862 87-012-199-080 CAP 220P C711 87-010-265-080 CAP, ELECT 33-16V C863 87-012-270-080 CAP, U 470P-50 C712 87-010-831-080 C-CAP,U,0.1-16F C864 87-010-405-080 CAP, ELECT 10-50V C714 87-012-286-080 CAP, U 0.01-25 C865 87-010-196-080...
  • Page 10 REF. NO. PART NO. KANRI DESCRIPTION REF. NO. PART NO. KANRI DESCRIPTION C609 87-010-315-080 C-CAP,S 27P-50 CH C406 87-010-374-080 CAP, ELECT 47-10V C610 87-010-452-080 CAPACITOR,1-16 C407 87-010-178-080 CHIP CAP 1000P C613 87-010-196-080 CHIP CAPACITOR,0.1-25 C408 87-010-198-080 CAP, CHIP 0.022 C614 87-010-196-080 CHIP CAPACITOR,0.1-25 C409...
  • Page 11 REF. NO. PART NO. KANRI DESCRIPTION TRANSISTOR ILLUSTRATION REF. NO. PART NO. KANRI DESCRIPTION C501 87-010-196-080 CHIP CAPACITOR,0.1-25 C502 87-010-322-080 C-CAP,S 100P-50 CH C503 87-010-322-080 C-CAP,S 100P-50 CH C504 87-010-322-080 C-CAP,S 100P-50 CH C505 87-010-322-080 C-CAP,S 100P-50 CH C506 87-010-322-080 C-CAP,S 100P-50 CH C510 87-016-669-080...
  • Page 12 SCHEMATIC DIAGRAM – 1 (MAIN<AMP SECTION> / PT) R246 L204 100UH 180 1/4W R245 L205 100UH 1/4W – 12 –...
  • Page 13 WIRING - 1 (MAIN) - 13 -...
  • Page 14 SCHEMATIC DIAGRAM – 2 (MAIN<TUNER SECTION>) – 14 –...
  • Page 15 WIRING - 2 (PT) - 15 -...
  • Page 16 SCHEMATIC DIAGRAM – 3 (FRONT / KEY / LED) LC877264A-EZ – 16 –...
  • Page 17 WIRING - 3 (FRONT / LED) - 17 -...
  • Page 18 WIRING - 4 (KEY) - 18 -...
  • Page 19 SCHEMATIC DIAGRAM – 4 (CD / CD MOTOR) – 19 –...
  • Page 20 WIRING - 5 (CD) PICK UP ASSY SF-P101NR TO/FROM CD C.B - 20 -...
  • Page 21 WIRING - 6 (CD MOTOR / DECK) CD MOTOR C.B (SLED MOTOR) (INSIDE LIMIT SW) (SPINDLE MOTOR) - 21 -...
  • Page 22 MECHANICAL EXPLODED VIEW 1 / 1 P.W.B P.C.B PLATE, P.W.B DA11T3C DA1173C SHLD PT P.W.B P.W.B P.W.B AZG-4A CHAS,MAIN HLDR,WIRE TN-21ZSC-2003 LCX-MD210,211,S,D,L,EZS (FileName:EXP.EPS) 2000/2/18 – 22 –...

  • Page 23: Color Name Table

    MECHANICAL PARTS LIST 1 / 1 REF. NO. PART NO. KANRI DESCRIPTION REF. NO. PART NO. KANRI DESCRIPTION 1 8A-CJB-044-010 WINDOW,CASS (S) 36 87-036-389-010 SW,PUSH LOCK 2 82-NF7-218-010 SPR-T,CASS 37 8A-CJB-626-010 CONN ASSY,2P CD DOOR 3 8A-CJB-054-010 LID,CASS (S) 38 8A-CJB-211-010 SPR-T,CD 4 8A-CJB-061-010 CUSH,FOOT MAIN...
  • Page 24 TAPE MECHANISM EXPLODED VIEW 1 / 1 LUG PLATE – 24 –...
  • Page 25 TAPE MECHANISM PARTS LIST 1 / 1 REF. NO. PART NO. KANRI DESCRIPTION REF. NO. PART NO. KANRI DESCRIPTION 1 S1-921-030-4A0 HEAD BASE 36 S1-921-140-220 REC BUTTON LEVER 2 S1-821-030-070 AZIMUTH SPRING 37 S1-921-140-170 P.S.LEVER SPRING 3 S1-921-030-090 PANEL P SPRING 38 S1-921-073-040 RF CLUTCH ASSY 4 S1-921-260-050...
  • Page 26 CD MECHANISM EXPLODED VIEW 1 / 1 SHAFT,SLIDE SF-P101NR CHASSIS SPINDLE MOTOR C,B MOTOR(M1) CD MECHANISM PARTS LIST 1 / 1 REF. NO. PART NO. KANRI DESCRIPTION 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...

  • Page 27: Speaker Parts List

    SPEAKER PARTS LIST (SX–MD210) REF. NO. PART NO. KANRI DESCRIPTION 1 8A-CJB-954-010 PANEL ASSY,SPKR(S) 2 8A-CJB-021-110 CABI,SPKR FR 3 87-067-703-010 BVT2+3-10 W/O SLOT 4 87-067-698-010 BVT2+3-18 W/O SLOT 5 8A-CJB-627-010 CORD,SPKR 6 8A-CJB-027-010 CUSH,FOOT 7 8A-CJB-220-110 HLDR,SPKR REAR 8 8A-CJB-204-110 HLDR,SPKR WIRE 9 8A-CJB-632-010 SPKR,100MM 40HM...

  • Page 28: Test Mode

    TEST MODE CD TEST MODE 1-1 How to activate CD Test Mode Insert the AC plug while pressing the "CD function" button. Test mode will be activated and [CD TEST] will be appeared in the LCD display. Note: Test mode can not be activated when CD door switch is opened. 1-2 CD Test Mode Functions Mode Function...
  • Page 29 MD TEST MODE 1-1 How to start up MD Test Mode Insert the AC plug while pressing the "MD function" button. After the MD test mode has started up, [MD TEST] message appears and the test mode becomes operatable. Note: • Disconnect the AC plug immediately if any mechanism abnormalities. •...
  • Page 30 2) Press "s" button to display [ALL SVOFF] after checking • Checking the focus search and spendle kick 2 1) When "TUNER function" button is pressed in the "ALL SVOFF" state regardless disc existence, focus search and spindle kick are executed continuously.
  • Page 31 ADJUSTMENT <TUNER / DECK> MAIN C.B L772 FFE801 TP4 (VT) L771 L941 L942 IC771 TC942 L981 TP7(Rch) IC721 C785 C786 TP8(Lch) IC201 IC202 J201 7. FM Tracking Check < TUNER SECTION > Settings : • Test point : TP7 (RCH), TP8 (LCH) 1.
  • Page 32 <CD> CD C.B CN401 SFR430 IC404 (VREF) CN405 C431 TP(TE) R405 TP(RFSM) IC402 IC401 CN403 Note: • Connect a provbe (10 : 1) of the oscilloscope to adjust. 2. Tracking Balance Adjustment • Connect negative side of the oscilloscope to TP (VREF) for Oscilloscope each adjustment.
  • Page 33 <MD> • Perform 1~3 adjustment when display showing [NO ADJUST]. 1. Temperature Compensation Adjustment Then, confirm the values of [I ** E ] in the display are • Test point: Check on the display. within the following range. • Tool : Thermometer [ ** ] ......
  • Page 34 12) Press "s" button to display [ALL SVOFF]. 6. UTOC Erase To be performed only when erasure is needed with disc that have already been recorded upon. 1) Insert the disc that is to be used to erase the UTOC. 2) Move the pickup to the center track using "g"...

  • Page 35: Service Jig And Tools

    SERVICE JIG AND TOOLS Service jigs and tools for repairing as follows; Usage Parts Name Parts No CD mecha stand JIG, P-CD BY TORIKOSHI SV-J00-018-010 PU extention FFC FFC-CABLE, 16P 1.0 250mm 87-CE1-640-010 S.T.I. G-98-50 FFC, 8P-1.0 SV-J00-043-010 SV-J00-044-010 S.T.I. G-98-50 FFC, 14P-1.0 LCD DISPLAY GRID ASSIGNMENT...
  • Page 36 – 36 –...
  • Page 37 IC DESCRIPTION IC, LC877264A-EZ Pin No. Pin Name Description O-ARDY Output ready signal for MD micro controller communication. L: Enable. O-SREQ Request system micro controller output for MD micro controller communication. L: Enable. O-SOUT Output serial data for MD micro controller communication. I-SIN Input serial data for MD micro controller communication.
  • Page 38 Pin No. Pin Name Description I-DOOR Detect CD door. H: OPEN, L: CLOSE. I-WRQ Sub code Q read standby for CD LSI communication. I-DRF Input RF level detection. COM0 Output COM1. COM1 Output COM2. COM2 Output COM3. COM3 Output COM4. O-CDCONT Control CD power.
  • Page 39 IC, LA9241ML Pin No. Pin Name Description Connect to the pickup's photo diode; adding this pin to pin FIN1 generates RF signal, FIN2 and subtracting it generates FE signal. FIN1 Connect to the pickup's photo diode. Connect to the pickup's photo diode; subtracting this pin from pin F generates TE signal. Connect to the pickup's photo diode.
  • Page 40 Pin No. Pin Name Description CV– Input for CLV error signal from DSP. RFSM Output for RF. RFS– For setting RF gain and 3T compensation constant together with RFSM. SLICE LEVEL CONTROL; output for controlling the data slice level of DSP with RF waveform.
  • Page 41 IC, LC78622ED Pin No. Pin Name Description DEFI Defect detection signal (DEF) input. Test input. A pull-down resistor is built in. (Must be connected to 0V) External VCO control phase comparator output. VVSS – Internal VCO ground. (Must be connected to 0V) ISET PDO output current adjustment resistor connection.
  • Page 42 Pin No. Pin Name Description RVSS – Right channel one-bit DAC R channel ground. (Must be connected to 0V) RCHO Right channel one-bit DAC R channel output. RVDD – Right channel one-bit DAC R channel power supply. MUTER Right channel one-bit DAC R channel mute ouput. (Not connected) XVDD –...
  • Page 43 IC, LC72131D Pin No. Pin Name Description X IN A crystal oscillator (4.5MHz) is connected to X OUT pin. – Not connected. To enable the IC. Active "H". Digital data input from CPU (LC877264A-EZ) when relevant key is operated. Active "H". To clock in the data DI.
  • Page 44 IC BLOCK DIAGRAM - 44 -...
  • Page 45 - 45 -...

  • Page 46: Voltage Chart

    VOLTAGE CHART < CD > Test condition : CD play IC401(LA9241ML) IC402(LC78622ED) – 46 –...
  • Page 47 < CD > < TUNER > Test condition : Tuner function IC403(LA6541D) IC721(LC72131D) IC771(LA1837N) Q771(2SA952) Q773(DTC114Y) – 47 –...
  • Page 48 < TAPE / AMP > Test condition : Tape function(tape stop) IC103(BA4560N) IC202(TA8223K) Q101(2SB1370E) 12.8 12.8 12.1 20.4 10.8 Q102(DTC114Y) 20.7 10.8 20.4 Q103(2SB1370E) 20.7 20.7 10.8 20.1 10.7 IC201(M62495AFP) Q104(KTC3198GR) 10.1 20.1 10.7 Q203(2SA952) IC101(BA17808) 20.7 20.7 20.0 12.8 Q204(KTC3198GR) 12.8 IC102(NJM7806FA)
  • Page 49 2–11, IKENOHATA 1–CHOME, TAITO-KU, TOKYO 110, JAPAN TEL:03 (3827) 3111 912204 Printed in Singapore...

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