Sony MDX-66XLP Service Manual
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Sony MDX-66XLP Service Manual

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SERVICE MANUAL
Ver 1.1 2002. 04
SPECIFICATIONS
System
Mini disc digital audio system
Frequency response
10 – 20,000 Hz
Wow and flutter
Below measurable limit
Signal-to-noise ratio
95 dB
Outputs
Bus control output (8 PIN)
Analog audio output (RCA PIN)
Current drain
300 mA (MD playback)
600 mA (during loading or
ejecting a disc)
Approx. 176 × 83.5 × 142 mm
Dimensions
(7 × 3
× 5
3/8
18/32
not incl.
projecting parts and controls
Mass
Approx. 1.1 kg (2 lb. 7 oz.)
Power requirement
12 V DC car battery (negative
ground)
Supplied accessories
Mounting hardware (1 set)
Bus cable 5.5 m (1)
RCA pin cord 5.5 m (1)
• U.S. and foreign patents licensed from Dolby
Laboratories.
• Design and specifications are subject to change without
notice.
Sony Corporation
9-873-582-02
2002D0400-1
e Vehicle Company
© 2002. 04
Published by Sony Engineering Corporation
MDX-66XLP
in.) (w/h/d)
Model Name Using Similar Mechanism
Mini Disc Mechanism Type
Optical Pick-up Name
FEATURES
• MDLP (MiniDisc Long Play) playback.
• Sony BUS system compatible with mobile MD
changers.
• Direct-in system for inserting and removing
MDs easily.
• The MD changer compartment has a built in light
for easy use even in the dark.
• 1 bit Digital/Analog converter for high quality
sound reproduction.
MINIDISC CHANGER
US Model
Canadian Model
AEP Model
UK Model
NEW
MG-798LP-133
KMS-241C/J1N
1

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Summary of Contents for Sony MDX-66XLP

  • Page 1 FEATURES System Mini disc digital audio system • MDLP (MiniDisc Long Play) playback. Frequency response 10 – 20,000 Hz • Sony BUS system compatible with mobile MD Wow and flutter Below measurable limit changers. Signal-to-noise ratio 95 dB • Direct-in system for inserting and removing...

  • Page 2: Table Of Contents

    DIAGRAMMES SCHÉMATIQUES ET LA LISTE DES PIÈCES SONT CRITIQUES POUR LA SÉCURITÉ DE FONCTIONNEMENT. NE REMPLACER CES COMPOSANTS QUE PAR DES PIÈCES OPTICAL PICK-UP FLEXIBLE BOARD SONY DONT LES NUMÉROS SONT DONNÉS DANS CE MANUEL OU DANS LES SUPPLÉMENTS PUBLIÉS PAR SONY.

  • Page 3: Service Note

    For key control, the this set is controlled through serial communication with a master unit (car audio player, TV tuner or source selector compatible with the Sony BUS system.) To service the this set, the set should be connected as given below:...

  • Page 4: General

    MDX-66XLP SECTION 2 GENERAL This section is extracted from instruction manual. PREPARATIONS (US, Canadian Model) CONNECTIONS (US, Canadian Model)

  • Page 5: Preparations (Aep, Uk Model)

    MDX-66XLP PREPARATIONS (AEP, UK Model) CONNECTIONS (AEP, UK Model)

  • Page 6: Disassembly

    MDX-66XLP SECTION 3 DISASSEMBLY Note : This set can be disassemble according to the following sequence. 3-1. PANEL (REAR) ASSY 3-5. MAIN BOARD (Page 6) (Page 8) 3-2. CASE (UPPER) 3-6. CHASSIS (OP) BLOCK (Page 7) (Page 9) 3-3. PANEL (FRONT) ASSY 3-7.

  • Page 7: Case (Upper)

    MDX-66XLP 3-2. CASE (UPPER) 3 case (upper) 1 BVTT 2.6x6 2 BVTT 2.6x6 3-3. PANEL (FRONT) ASSY 3 panel (front) assy 1 claw 2 claw 4 CN620...

  • Page 8: Md Block

    MDX-66XLP 3-4. MD BLOCK 4 tension spring (FL) 6 MD block 1 damper (798) 5 tension spring (FL) 2 damper (798) 3 tension spring (FL) 3-5. MAIN BOARD 3 escutcheon 6 chassis (front) 0 CN600 7 collar (EHS) qa CN601...

  • Page 9: Chassis (Op) Block

    MDX-66XLP 3-6. CHASSIS (OP) BLOCK 9 worm wheel (ELV2) 7 bearing (ELV) 8 bearing (ELV) 6 chassis (OP) block 5 bearing (ELV) 4 bearing (ELV) 3 chassis (bottom) assy 2 precision 1 precision screw three screws (P 1.7x1.8) (P 1.7x1.8) 3-7.

  • Page 10: Optical Pick-Up

    MDX-66XLP 3-8. OPTICAL PICK-UP 1 two screws (K1.7x3.5) 2 optical pick-up...

  • Page 11: Note On Assembly For The Chassis (Op) Block

    MDX-66XLP 3-9. NOTE ON ASSEMBLY FOR THE CHASSIS (OP) BLOCK 1 worm wheel (ELV2) 3 bearing (ELV) 4 bearing (ELV) 5 chassis (OP) block 2 Turn the three feed screw (ELV) assy fully in the direction of arrows A .

  • Page 12: Diagrams

    MDX-66XLP SECTION 4 DIAGRAMS 4-1. IC PIN DESCRIPTIONS • IC100 CXA2523AR (RF AMP) Pin No. Pin Name Pin Description I-V converted RF signal input (I) from detector of optical pick-up I-V converted RF signal input (J) from detector of optical pick-up Center voltage (+1.65 V) generation output...
  • Page 13 MDX-66XLP • SERVO BOARD IC200 CXD2662R (DIGITAL SERVO SIGNAL PROCESSOR, DIGITAL SIGNAL PROCESSOR) Pin No. Pin Name Pin Description Focus OK signal output to the MD mechanism controller (IC600) MNT0 (FOK) “H” is output when focus is on (“L”: NG)
  • Page 14 MDX-66XLP Pin No. Pin Name Pin Description XRAS Row address strobe signal output to the D-RAM (IC201) “L” active Write enable signal output to the D-RAM (IC201) “L” active Two-way data bus with the D-RAM (IC201) MDDT1 I (S) Digital in PLL oscillation input from the external VCO Not used (fixed at “L”.).
  • Page 15 MDX-66XLP Pin No. Pin Name Pin Description SRDR Sled servo drive PWM signal (–) output to the MPC17A36VMEL (IC300) SFDR Sled servo drive PWM signal (+) output to the MPC17A36VMEL (IC300) SPRD Spindle servo drive PWM signal (–) output to the MPC17A36VMEL (IC300)
  • Page 16 UNISO Serial data output for SONY BUS UNI CKI Serial clock input for SONY BUS LINKOFF Link control signal output for SONY BUS (“H” : Link OFF) (Not used in this set.) — Not used. — Not used. 51, 52 D-BASS1, 2 Digital D-BASS select output 1, 2 (Not used in this set.)
  • Page 17 MDX-66XLP Pin No. Pin Name Pin Description — Not used. EE CS Chip select output to EEPROM (Not used in this set.) EE CKO Serial clock output to EEPROM (Not used in this set.) EE SIO Data input/output to EEPROM (Not used in this set.)

  • Page 18: Block Diagram

    MDX-66XLP 4-2. BLOCK DIAGRAM OPTICAL PICK-UP BLOCK RF AMP SYSTEM CONTROL BUS INTERFACE IC601 DETECTOR IC100 IC600 IC900 CN900 RESET (BUS CONTROL OUT) RESET SYS RST XRST 71 MD RST RESET 15 SWDT XLAT 70 MD LAT SWDT SWDT 41 MD SO...

  • Page 19: Circuit Boards Location

    MDX-66XLP 4-3. CIRCUIT BOARDS LOCATION THIS NOTE IS COMMON FOR PRINTED WIRING BOARDS AND SCHEMATIC DIAGRAMS. (In addition to this, the necessary note is printed in each block.) for schematic diagram: SENSOR board • All capacitors are in µF unless otherwise noted. pF: µµF 50 WV or less are not indicated except for electrolytics and tantalums.

  • Page 20: Printed Wiring Boards -Servo Section

    MDX-66XLP 4-4. PRINTED WIRING BOARD — SERVO SECTION — • Refer to page 19 for Circuit Boards Location. SERVO BOARD ( SIDE B ) • Waveforms — Servo Board — 400mVp-p Approx. 150mVp-p 200mV/DIV, 0.5msec/DIV IC100 (FE) PLAY MODE 200mV/DIV, 10µsec/DIV...
  • Page 21 MDX-66XLP SERVO BOARD ( SIDE A ) • Semiconductor Location Ref. No. Location D300 IC100 IC200 IC201 IC203 IC300 SERVO FLEXIBLE Q100 Q200 BOARD MAIN BOARD CN500 (Page 25) EHS FLEXIBLE BOARD S901 HOME POSITION DET RV901 (ELEVATOR HEIGHT SENSOR)

  • Page 22: Schematic Diagram -Servo Section

    MDX-66XLP • Refer to page 20 for Waveforms. 4-5. SCHEMATIC DIAGRAM — SERVO SECTION — • Refer to page 28 for IC Block Diagrams. CL126 CL134 C111 C112 C113 C210 Q200 C102 C208 IC201 IC B/D CL119 C101 CN100 C212...

  • Page 23: Schematic Diagram -Main Section

    MDX-66XLP • Refer to page 24 for Waveforms. 4-6. SCHEMATIC DIAGRAM — MAIN SECTION — • Refer to page 28 for IC Block Diagrams. CN500 CN600 C610 IC B/D Q500 R541 D500 R542 R540 IC500 IC602 C510 RB609 C500 C501...

  • Page 24: Printed Wiring Boards -Main Section

    MDX-66XLP 4-7. PRINTED WIRING BOARDS — MAIN SECTION — • Refer to page 19 for Circuit Boards Location. MAIN BOARD (SIDE B) • Waveforms — Main Board — 2.7Vp-p 71nsec (X2) IC600 2.6Vp-p 30.4µsec IC600 (XT1) 2.8Vp-p 22.7µsec IC500 (LRCR) 2.8Vp-p...
  • Page 25 MDX-66XLP • Semiconductor MAIN FLEXIBLE BOARD Location Ref. No. Location D500 POWER BOARD D501 CN901 D600 (Page 26) D601 D602 D800 D801 1-668-438 SENSOR BOARD IC500 IC600 MAIN BOARD (SIDE A) IC601 IC602 IC603 IC700 CN601 CN610 IC701 S902 Q801...

  • Page 26: Printed Wiring Board -Power Section

    MDX-66XLP 4-8. PRINTED WIRING BOARD — POWER SECTION — • Refer to page 19 for Circuit Boards Location. • Semiconductor CN901 Location C906 Ref. No. Location D900 C901 D901 D902 IC900 C903 D903 D904 (Page 25) D905 R900 D930 NF900...

  • Page 27: Schematic Diagram -Power Section

    MDX-66XLP 4-9. SCHEMATIC DIAGRAM — POWER SECTION — • Refer to page 29 for IC Block Diagrams. Q932 C912 R912 R933 R931 R913 R911 C911 R910 R914 C913 C910 Q910 IC930 R932 CN902 C934 C920 R920 CN901 R923 R924 C923...
  • Page 28 MDX-66XLP IC200 CXA2662R • IC BLOCK DIAGRAMS IC100 CXA2523AR 100 99 98 97 96 95 94 93 92 91 90 89 88 87 86 85 84 83 82 81 80 79 78 77 76 SPINDLE 43 42 SERVO GENERATOR USROP 75 TE –...
  • Page 29 MDX-66XLP IC300 MPC17A36VMEL 18 17 CONTROL CONTROL CONTROL CONTROL DETECTOR CLOCK PRE-DRIVER PRE-DRIVER PRE-DRIVER PRE-DRIVER DC/DC CONVERTER DRIVER DRIVER DRIVER DRIVER DRIVER IC900 BA8272F-E2 IC970 TL5001CPSR BONO BONI B.ON L.OFF U.V.L.O DEAD-TIME REFERENCE COMPARATOR B.CLK CLK.O VOLTAGE VREF – –...

  • Page 30: Exploded Views

    MDX-66XLP SECTION 5 EXPLODED VIEWS NOTE: The components identified by • The mechanical parts with no reference • Color Indication of Appearance Parts mark 0 or dotted line with mark number in the exploded views are not supplied. Example : 0 are critical for safety.

  • Page 31: Main Board Section

    MDX-66XLP 5-2. MAIN BOARD SECTION MG-798LP-133 Ref. No. Part No. Description Remark Ref. No. Part No. Description Remark * 51 3-931-149-02 SHEET (MAIN PC BOARD) 3-931-699-01 CUSHION (ROLL H) A-3283-298-A MAIN BOARD, COMPLETE * 59 3-931-025-21 SHEET (MECHANICAL DECK) 1-776-474-11 CABLE, FLAT 7P...

  • Page 32: Md Section (1)

    MDX-66XLP 5-3. MD SECTION (1) (MG-798LP-133) S903 S902 M903 M904 Ref. No. Part No. Description Remark Ref. No. Part No. Description Remark 3-317-552-71 SCREW (M1.7) * 114 X-3374-670-1 CHASSIS (BOTTOM) ASSY 3-930-314-01 ESCUTCHEON 3-930-313-01 GEAR (ELVC) 3-930-319-01 BUTTON (STOP) 3-020-386-01 GEAR (ELVA2)

  • Page 33: Md Section (2)

    MDX-66XLP 5-4. MD SECTION (2) (MG-798LP-133) Ref. No. Part No. Description Remark Ref. No. Part No. Description Remark * 151 X-3371-209-3 CHASSIS (TOP) ASSY X-3378-169-1 HOLDER (CADDIE) ASSY * 152 3-020-388-01 GUIDE (HOLDER 2) 3-930-352-01 SPRING (D LOCK), TENSION 3-930-318-01 BUTTON (EJECT)

  • Page 34: Md Section (3)

    MDX-66XLP 5-5. MD SECTION (3) (MG-798LP-133) RV901 M902 S901 M901 The components identified by Les composants identifiés par une mark 0 or dotted line with mark marque 0 sont critiques pour 0 are critical for safety. la sécurité. Replace only with part number Ne les remplacer que par une piéce...

  • Page 35: Electrical Parts List

    MDX-66XLP SECTION 6 LAMP MAIN ELECTRICAL PARTS LIST NOTE: • Due to standardization, replacements in • Items marked “*” are not stocked since The components identified by mark 0 or dotted line with mark the parts list may be different from the they are seldom required for routine service.
  • Page 36 MDX-66XLP MAIN POWER Ref. No. Part No. Description Remark Ref. No. Part No. Description Remark IC700 8-759-823-87 IC LB1638M < NETWORK RESISTOR > IC701 8-759-823-87 IC LB1638M RB601 1-233-412-11 RES, CHIP NETWORK 1.0KX4 (3216) < RESISTOR > RB602 1-233-810-21 RES, CHIP NETWORK 100KX4 (3216) RB603 1-233-412-11 RES, CHIP NETWORK 1.0KX4 (3216)
  • Page 37 MDX-66XLP POWER SENSOR Ref. No. Part No. Description Remark Ref. No. Part No. Description Remark C973 1-164-004-11 CERAMIC CHIP 0.1uF < TRANSISTOR > C974 1-164-004-11 CERAMIC CHIP 0.1uF C975 1-126-204-11 ELECT CHIP 47uF Q910 8-729-920-21 TRANSISTOR DTC314TK-T-146 C976 1-128-590-11 ELECT CHIP 100uF 6.3V...
  • Page 38 MDX-66XLP SERVO Ref. No. Part No. Description Remark Ref. No. Part No. Description Remark A-3283-295-A SERVO BOARD, COMPLETE < DIODE > ********************** D300 8-719-988-61 DIODE 1SS355TE-17 < CAPACITOR > < FERRITE BEAD > C100 1-107-685-11 TANTAL. CHIP 15uF 6.3V C101...
  • Page 39 MDX-66XLP SERVO Ref. No. Part No. Description Remark Ref. No. Part No. Description Remark < NETWORK RESISTOR > PARTS FOR INSTALLATION AND CONNECTIONS *************************************** RB200 1-233-576-11 RES, CHIP NETWORK 100X4 RB300 1-233-600-11 RES, CHIP NETWORK 2.2X4 (3216) 3-930-163-21 BASE (FITTING) RB301 1-233-600-11 RES, CHIP NETWORK 2.2X4 (3216)
  • Page 40 MDX-66XLP REVISION HISTORY Clicking the version allows you to jump to the revised page. Also, clicking the version at the upper on the revised page allows you to jump to the next revised page. Ver. Date Description of Revision 2002. 02 2002.

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