Aiwa XR-MD811 Service Manual
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Aiwa XR-MD811 Service Manual

Aiwa XR-MD811 Service Manual

Audio system aiwa md / cd stereo system
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SERVICE MANUAL
MD / CD
STEREO SYSTEM
STEREO
SYSTEM
RECEIVER
XR-MD811
RX-LMD811
• This Service Manual is the "Revision" and replaces "Simple Manual"
XR-MD811(EZ), (S/M Code No. 09-008-438-0T1).
• If requiring information about the MD mechanism, see Service Manual of
AZG-H, (S/M Code No. 09-005-346-5N2).
XR-MD811
BASIC CD MECHANISM : DA23L
BASIC MD MECHANISM : AZG-H YA
STEREO MD RECORD/
COMPACT DISC PLAYER
FM-LMD811
S/M Code No. 09-00C-438-0R1
EZ
REMOTE
SPEAKER
CONTROLLER
SX-LM810
RC-AAT21

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Summary of Contents for Aiwa XR-MD811

  • Page 1 RC-AAT21 RX-LMD811 FM-LMD811 • This Service Manual is the “Revision” and replaces “Simple Manual” XR-MD811(EZ), (S/M Code No. 09-008-438-0T1). • If requiring information about the MD mechanism, see Service Manual of AZG-H, (S/M Code No. 09-005-346-5N2). S/M Code No. 09-00C-438-0R1...

  • Page 2: Table Of Contents

    TABLE OF CONTENTS SPECIFICATIONS ..............................3 PROTECTION OF EYES FROM LASER BEAM DURING SERVICING ............4 DISASSEMBLY INSTRUCTIONS ........................5 ~ 6 MODEL NO. RX-LMD811 ELECTRICAL MAIN PARTS LIST ........................ 7 ~ 9 TRANSISTOR ILLUSTRATION .......................... 10 WIRING – 1 (POWER) ............................11 WIRING –...

  • Page 3: Specifications

    SPECIFICATIONS STEREO RECEIVER RX-LMD811 <MD recorder section> <FM tuner section> Scanning method Non-contact optical scanner Tuning range 87.5 MHz to 108 MHz (Semiconductor laser application) Usable sensitivity (IHF) 16.8 dBf Recording system Magnetic polarity modulation Antenna terminals 75 ohms (unbalanced) overwrite system Rotation speed Approx.

  • Page 4: 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 5: Disassembly Instructions

    DISASSEMBLY INSTRUCTIONS FM BLOCK DISASSEMBLY 1. Removing the Ornament Parts Remove the two screws. Remove the two screws. Remove the eight screws and remove PANEL, REAR. Remove the FFC from the connector 1 and remove PANEL, TOP 2. – 5 –...
  • Page 6 2. Removing the CD Block Remove the two screws and remove the entire CD block. The figure shows the states after the CD block is removed. 3. Removing the MD Block Remove the four screws and remove the MD block. –...

  • Page 7: Electrical Main Parts List

    MODEL NO. RX-LMD811 ELECTRICAL MAIN PARTS LIST REF. NO. PART NO. KANRI DESCRIPTION REF. NO. PART NO. KANRI DESCRIPTION C219 87-010-184-080 CHIP CAPACITOR 3300P-50 87-070-127-110 IC,LC72131D C220 87-010-184-080 CHIP CAPACITOR 3300P-50 87-A20-913-010 IC,LA1837NL C281 87-010-401-080 CAP, ELECT 1-50V 87-A20-440-040 C-IC,BU1920FS C282 87-010-263-080 CAP, ELECT 100-10V...
  • Page 8 REF. NO. PART NO. KANRI DESCRIPTION REF. NO. PART NO. KANRI DESCRIPTION R218 87-A00-258-080 RES,M/F 0.22-1W J C709 87-012-195-080 C-CAP,U 100P-50CH R219 87-A00-258-080 RES,M/F 0.22-1W J C711 87-010-260-080 CAP,ELECT 47-25V R220 87-A00-258-080 RES,M/F 0.22-1W J C712 87-010-831-080 C-CAP,U,0.1-16F TH201 87-A91-042-080 C-THMS,100K 55001 C713 87-012-286-080...
  • Page 9 REF. NO. PART NO. KANRI DESCRIPTION REF. NO. PART NO. KANRI DESCRIPTION C861 87-012-199-080 C-CAP,U 220P-50 J CH CN701 87-A60-650-010 CONN,16P H GRY TUC-P16X-C1 C862 87-012-199-080 C-CAP,U 220P-50 J CH FFE801 A8-6ZA-191-130 6ZA-1 FEENM C863 87-012-270-080 C-CAP,U 470P-50 KB J801 87-033-241-010 TERMINAL,ANT 2P AJ-2039 C864...

  • Page 10: Transistor Illustration

    TRANSISTOR ILLUSTRATION E C B E C B B C E E C B CSC4115 CSD655 2SB1370 CSD1489 KTA1266 CC5551 KTC3198 B C E 2SK2158 2SK543 2SD2495 2SA1235 DTA123JK 2SB1626 2SC2714 DTC124EK 2SC3052 RT1N141C 2SC3906 RT1P141C CMBT5401 RT1P144C CSD1306 – 10 –...

  • Page 11: Wiring - 1 (Power)

    WIRING – 1 (POWER) – 11 –...

  • Page 12: Wiring - 2 (Pwr-Amp)

    WIRING – 2 (PWR – AMP) – 12 –...

  • Page 13: Wiring - 3 (Pt-Main / Pt-Sub)

    WIRING – 3 (PT – MAIN / PT – SUB) – 13 –...

  • Page 14: Wiring - 4 (Tu-Inf / Jack)

    WIRING – 4 (TU – INF / JACK) – 14 –...

  • Page 15: Schematic Diagram - 1 (Power / Pwr-Amp / Pt-Main / Pt-Sub / Tu-Inf / Jack)

    SCHEMATIC DIAGRAM – 1 (POWER / PWR-AMP / PT-MAIN / PT-SUB / TU-INF / JACK) – 15 –...

  • Page 16: Wiring - 5 (Front / Led-1~3)

    WIRING – 5 (FRONT / LED 1 ~ 3) – 16 –...

  • Page 17: Schematic Diagram - 2 (Front / Led-1~3)

    SCHEMATIC DIAGRAM – 2 (FRONT / LED-1 / LED-2 / LED-3) – 17 –...

  • Page 18: Wiring - 6 (Tuner)

    WIRING – 6 (TUNER) – 18 –...

  • Page 19: Schematic Diagram - 3 (Tuner)

    SCHEMATIC DIAGRAM – 3 (TUNER) – 19 –...

  • Page 20: Ic Block Diagram

    IC BLOCK DIAGRAM – 20 –...

  • Page 21: Lcd Diagram

    LCD DIAGRAM LCD ASSY, ACJ-6 – 21 –...

  • Page 22: Adjustment

    ADJUSTMENT TUNER SECTION 1. Clock Frequency Check 6. AM IF Adjustment Settings : • Test point : TP2 (CLK) Settings : • Test point : TP8 (Lch), TP9 (Rch) Method : Set to MW 1602kHz and check that the test •...

  • Page 23: Mechanical Exploded View 1 / 1

    MECHANICAL EXPLODED VIEW 1 / 1 ZZA-1 HT-SINK, PLATE,SUB-PT PLATE,SHLD PT HT-SINK, ASSY CHAS MAIN SH,SUB PT (AMP) TUBU,UL 12-140 SH,LCD – 23 –...

  • Page 24: Mechanical Parts List 1 / 1

    MECHANICAL PARTS LIST 1 / 1 REF. NO. PART NO. KANRI DESCRIPTION 1 8A-CU2-006-010 PANEL,TOP(AMP) 2 8A-CU2-003-010 CABI,TOP(AMP) 3 8A-CU2-206-010 GUIDE,LED B 4 8A-CU2-205-010 GUIDE,LED A 5 8A-NF7-226-110 HLDR,IC2-T2 6 8A-CU2-001-010 CABI,FR(AMP) 7 8A-CU2-005-010 PANEL,FR(AMP) 8 8A-CU2-009-010 WINDOW,ST-BY 9 8A-CJ6-212-010 HLDR,LCD 10 8A-CU2-008-010 REFLECTOR,FR...

  • Page 25: Electrical Main Parts List

    MODEL NO. FM-LMD811 ELECTRICAL MAIN PARTS LIST REF. NO. PART NO. KANRI DESCRIPTION REF. NO. PART NO. KANRI DESCRIPTION C553 87-010-553-040 CAP,E 47-16 GAS C554 87-010-498-040 CAP,E 10-16 GAS 87-A20-547-010 C-IC,CXA1992AR C555 87-010-196-080 CHIP CAPACITOR,0.1-25 87-017-917-080 IC,BU4066BCF C556 87-016-044-040 CAP,E 100-16 GAS 87-A20-546-010 C-IC,CXD2589Q C557...
  • Page 26 REF. NO. PART NO. KANRI DESCRIPTION REF. NO. PART NO. KANRI DESCRIPTION C142 87-A10-207-080 CAP,TCS 0.01-50KBUP050 87-010-176-080 C-CAP,S 680P-50 SL C143 87-010-382-080 CAP, ELECT 22-25V 87-010-176-080 C-CAP,S 680P-50 SL C320 87-010-235-080 CAP,E 470-16 SME 87-012-154-080 C-CAP,S 150P-50 CH C321 87-018-209-080 CAP, CER 0.1-50V 87-012-154-080 C-CAP,S 150P-50 CH...
  • Page 27 REF. NO. PART NO. KANRI DESCRIPTION REF. NO. PART NO. KANRI DESCRIPTION L201 87-A50-333-010 COIL,OSC 9.43MHZ L204 87-A50-190-080 C-COIL,S BLM21A102S L401 87-A50-189-080 C-COIL,S BLM21B272S 87-A50-190-080 C-COIL,S BLM21A102S 87-005-906-080 C-COIL,S 10.0UH K R120 87-A91-935-080 PROTECTOR,1A 20P 60V W201 8A-CR2-661-010 F-CABLE,19P 1.5MM 400MM W202 8A-CR2-660-010 F-CABLE,15P 1.5MM 400MM...

  • Page 28: Transistor Illustration

    TRANSISTOR ILLUSTRATION E C B B C E E C B E C B 2SB1370 CSD655 2SA1015 2SC5395 KTC3198 2SA1979 2SK2158 DTA144TKA RT1N141C RT1P141C RT1N144C – 28 –...

  • Page 29: Wiring - 1 (Func / Key / Motor / Door Sw)

    WIRING – 1 (FUNC / KEY / MOTOR / DOOR SW) – 29 –...

  • Page 30: Wiring - 2 (Front / Power / Led-L / Led-R)

    WIRING – 2 (FRONT / POWER / LED – L / LED – R) – 30 –...

  • Page 31: Schematic Diagram - 1 (Func / Front / Power / Key / Motor / Door Sw / Led-L / Led-R)

    SCHEMATIC DIAGRAM – 1 (FUNC / FRONT / POWER / KEY / MOTOR / DOOR SW / LED-L / LED-R) – 31 –...

  • Page 32: Wiring - 3 (Cd) <1/2

    WIRING – 3 (CD) <1 / 2> – 32 –...

  • Page 33: Wiring - 3 (Cd) <2/2

    WIRING – 3 (CD) <2 / 2> – 33 –...

  • Page 34: Schematic Diagram - 2 (Cd) <1/2

    SCHEMATIC DIAGRAM – 2 (CD) <1/2> – 34 –...

  • Page 35: Schematic Diagram - 3 (Cd) <2/2

    SCHEMATIC DIAGRAM – 3 (CD) <2/2> – 35 –...

  • Page 36: Ic Block Diagram

    IC BLOCK DIAGRAM – 36 –...

  • Page 37: Ic Description

    IC DESCRIPTION IC, CXA1992AR Pin No. Pin Name Description Output terminal for focus error amplifier. Internally connected to window comparator input for bias condition. Input terminal for focus error. FDFCT Capacitor connection terminal for time constant used when there is defect. This pin is connected to GND via capacitor when high frequency gain of the focus servo is attenuated.
  • Page 38 Pin No. Pin Name Description RF I Input terminal by capacity combination of RF summing amplifier. RF O Output terminal of RF summing amplifier. Checkpoint of Eye pattern. Anti-reverse input terminal for RF summing amplifier. RF M The gain of RF amplifier is decided by the connection resistance between RF M and RF O terminals.
  • Page 39 IC, CXD2589Q Pin No. Pin Name Description 1, 20, 45, 60 — GND. LMUTE Lch-“0” detect flag. (Not used) RMUTE Rch-“0” detect flag. (Not used) SQCK Clock input for SQSO read out. SQSO SubQ 80 bit serial output. SENSE SENSE signal output to CPU. DATA Serial data input from CPU.
  • Page 40 Pin No. Pin Name Description BCKI D/A interface bit clock input. XUGF XUGF output, MNT1 or RPCK output by switching command. (Not used) XPCK XPLCK output, MNT0 output by switching command. (Not used) GFS output, MNT3 or XRAOF output by switching command. (Not used) C2PO C2PO output, GTOP output by switching command.
  • Page 41 IC, LC876580W-5S53 Pin No. Pin Name Description O-CD-CE CD IC control chip enable output. I-CD-SENSE CD IC sense input. O-CD-SQCK CD IC control data bus clock output. O-AON AMP ON/OFF control output. O-TUNER-ON TUNER ON/OFF control output. O-PLL-CLK PLL IC control clock output. O-PLL-DATA PLL IC control data output.
  • Page 42 Pin No. Pin Name Description I-SW CLS DECK close switch input. 60 ~ 61 – Not connected. MD select input. DEMO DEMO select input. BBE select input. ECO OFF ECO select input. AM10K AM10K select input. FM WIDE&AMST FM WIDE & AM ST select input. LW select input.

  • Page 43: Adjustment

    ADJUSTMENT <MD> All adjustments and checking of the MD block must be carried out in the test mode. When the message “NO Adjust” is displayed, all adjustments must be performed. With regard to the key operations, see the section headed “Regarding the test mode and key operations for electrical adjustment” for the test mode at the top of this section on the MD Test Mode in this manual.
  • Page 44 START Start the TEST MODE While pressing “MD EJECT” on the main unit, connect the AC plug to the power outlet “STOP” EEPROM initialization “CD OPEN/CLOSE” on the main unit To be continued – 44 –...
  • Page 45 This adjustment is important, to ensure that the temperature of the circuit boards Temperature compensation adjustment is equal to that of the room. “DISPLAY” on the remote control unit “PAUSE” Adjust temperature compensation Measure the ambient temperature of the MD mechanism using the thermometer, compare it with the display temperature, and adjust the display temperature to make it equal to the ambient...
  • Page 46 LASER power check Check read power Check the light power Press VOLUME “-” on the main unit twice VOLUME “-” on the main unit “PAUSE” Check the preset value for the light power “PAUSE” Ensure that “LSR = 9F” is set Check the preset value for the read power “DISPLAY COLOR”...
  • Page 47 AUTO SEQUENCE ADJ Adjust MO DISC “STOP” Loading MDW-74 Press “DISPLAY” on the remote control unit twice “MD MARK” on the remote control unit Check the adjustment value (IVR, EF balance) “AUTO MARK” lights up Check the EF balance value: Within 09 to 15 (hexadecimal) Check the IVR value: Within 04 to 0A (hexadecimal)
  • Page 48 Continuation of AUTO SEQUENCE ADJ Adjust PIT DISC Check the adjustment of PIT DISC “STOP” Loading TGYS-1 Press “DISPLAY” on the remote control unit twice “MD MARK” on the remote control unit Check the adjustment value (IVR, EF balance) “TIME MARK” lights up Check the EF balance value: Within 09 to 15 (hexadecimal) “MD”...
  • Page 49 Error rate check Check the playback error rate Check the playback error rate Loading TGYS-1 0030 or less “MD MARK” on the remote control unit “TIME MARK” lights up “STOP” “B.SKIP F.SKIP” “MD EJECT” on the main unit Move the pickup to the intermediate position between the innermost and outermost tracks on the disc Eject the disc “AUX/D-IN”...
  • Page 50 Address display Error rate check Continuation of Recording starts automatically from a position of 600C Checking the record/playback error rate A recording time of about 15 to 30 seconds is required “STOP” Loading an MDW-74 disc “MD MARK” on the remote control unit “AUX/D-IN”...
  • Page 51 Checks after completing the adjustment procedure Press “POWER” twice to confirm that “No Adjust” is not displayed on POWER ON Remove the 3.3 kΩ resistor connected to the laser power switch – 51 –...

  • Page 52: Cd Test Mode

    CD TEST MODE 1. How to Start the CD Test Mode 2. How to Exit the CD Test Mode While pressing the function CD button, insert the AC plug to the Disconnect the AC plug. wall outlet. All the indicators on the display light, which means that the test mode starts up.

  • Page 53: Md Test Mode

    MD TEST MODE Regarding the test mode and key operations for electrical adjustment: It is not possible to operate in test mode using the keys only on the main unit alone. It is mainly the keys on the remote control unit that are used. Laser power select key: The following preparatory step is necessary to enable laser power selection in test mode: Connect the land between R304 (1.2 k ohms) and R305 (10 k ohms) near S304, S305 on the KEY board of the main unit and the land at S311 on...
  • Page 54 1. How to start the MD test mode While pressing the “MD EJECT” key, connect the AC plug to the power outlet. * Notes: 1) Ignore the mechanical abnormality and continue the required MD test mode operations while the test mode is on. 2) Playback and recording operations are not possible while the test mode is in progress.
  • Page 55 6. Checking the laser power 1) The laser power is switched each time the VOLUME “-” key on the main unit is pressed in the “ALL SV OFF” state. The displays are switched as follows: “ALL SV OFF”: Laser off “LASER READ”: Laser read power (approx.
  • Page 56 8. Checking the servo operation 8-1. Checking the focus search and spindle kick no. 1 1) The focus search operation and spindle kick can be checked at the same time when the “PLAY” key is pressed in the “ALL SV OFF” state while a disc is not inserted.
  • Page 57 9. Checking the address and the error rate 1) The address and the error rate can be checked by pressing the “DISPLAY” on the remote control unit in the “ALL SV ON” state. Address display: The address that is being read in “all servo on” (ALL SV ON) is displayed.

  • Page 58: Mechanical Exploded View 1 / 1

    MECHANICAL EXPLODED VIEW 1 / 1 DA23L AZG-H YA – 58 –...

  • Page 59: Mechanical Parts List 1 / 1

    MECHANICAL PARTS LIST 1 / 1 REF. NO. PART NO. KANRI DESCRIPTION REF. NO. PART NO. KANRI DESCRIPTION 1 8A-CV2-008-010 WINDOW,CD 2 8A-CR2-012-010 LID,CD(MD) 3 8A-CR2-007-010 CABI,TOP (MD) 4 8A-CR2-006-010 KEY,FUNC(MD) 5 88-CE2-209-010 SPR-T,MD 6 8A-CJ6-029-010 PANEL,FLAP MD 7 8A-CR2-013-010 KEY,BAND 8 8A-CR2-008-010 KEY,POWER...

  • Page 60: Cd Mechanism Exploded View 1 / 1

    CD MECHANISM EXPLODED VIEW 1 / 1 – 60 –...

  • Page 61: Cd Mechanism Parts List 1 / 1

    CD MECHANISM PARTS LIST 1 / 1 REF. NO. PART NO. KANRI DESCRIPTION 1 S0-A41-A20-603 PICKUP ASSY LASER P200L 2 SM-10A-108-001 MOTOR ASSY SPINDLE 3 S0-M10-A10-900 MOTOR SLED ASSY 4 S2-311-A12-200 CHASSIS 5 S2-511-A23-200 GEAR MIDDLE 6 S2-511-A23-100 GEAR,SCREW 7 S2-511-A23-400 GEAR,RACK 8 S2-511-A07-901 SPINDLE SCREW...

  • Page 62: 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 63: Speaker Parts List

    SPEAKER PARTS LIST ( SX-SLM810 <YJT1N>) REF. NO. PART NO. KANRI DESCRIPTION 1 8A-CP2-004-010 GRILLE,FRAME ASSY 2 8A-CJ5-415-010 TERMINAL 3 8A-CP2-010-010 PANEL,TW B 4 8A-CP2-604-010 SPKR, TW 25 5 8A-CP2-602-010 SPKR, W 100 6 8A-CP2-002-010 PANEL,TW 7 8A-CP2-001-010 PANEL,W 8 8Z-CL5-543-010 CORD,SP ACCESSORIES / PACKAGE LIST REF.
  • Page 64 2–11, IKENOHATA 1–CHOME, TAITO-KU, TOKYO 110, JAPAN TEL:03 (3827) 3111 9820572 0251431 Printed in Singapore...

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Rx-lmd811Fm-lmd811Sx-lm810

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