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Sony MDX-65 manual

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Table of contents for the manual

  • Page 1

    – 1 – MICROFILM Model Name Using Similar Mechanism MDX-62 Mini Disc Mechanism T ype MG-798K-133 Optical Pick-up Name KMS-241A/J2N SERVICE MANUAL US Model Canadian Model AEP Model UK Model E Model MDX-65 MINIDISC CHANGER System Mini disc digital audio system Laser Diode Properties Material: GaAlAs W a velength: 780 nm Emission Duration: Continuo[...]

  • Page 2

    – 2 – T ABLE OF CONTENTS 1. SER VICE NO TE 1-1. T o Place the Set into Playback Mode ................................. 3 1-2. How to Check the Serv o Board W a veforms ...................... 3 2. GENERAL Preparations ............................................................................ 4 Listening MDs ....................................[...]

  • Page 3

    – 3 – BP1 BP2 MDX-65 Master unit (CDX-C880, C880R, etc.) BUS CONTROL IN BUS CONTROL OUT SECTION 1 SER VICE NO TE 1-1. T O PLA CE THE SET INT O PLA YB A CK MODE The this set has no ke y control function and cannot be placed into the Playback mode alone. For k ey control, the this set is controlled through serial communication with a master unit [...]

  • Page 4

    – 4 – SECTION 2 GENERAL This section extracted from US, Canadian, E model’ s instruction manual.[...]

  • Page 5

    – 5 –[...]

  • Page 6

    – 6 – 1 BVTT 2.6x 6 3 case (upper) 2 BVTT 2.6x6 2 PTT 2.6x8 4 BVTT 2.6x6 3 BVTT 2.6x6 6 panel (rear) assy 5 CN901 1 cover SECTION 3 DISASSEMBL Y Note : F ollow the disassembly procedure in the n umerical order given. 3-1. P ANEL (REAR) ASSY 3-2. CASE (UPPER)[...]

  • Page 7

    – 7 – 1 damper (798) 2 damper (798) 3 tension spring (FL) 4 tension spring (FL) 5 tension spring (FL) 6 MD block 1 claw 2 claw 3 panel (front) assy 4 CN620 3-3. P ANEL (FRONT) ASSY 3-4. MD BLOCK[...]

  • Page 8

    – 8 – 4 bearing (ELV) 7 bearing (ELV) 9 worm wheel (ELV2) 6 chassis (OP) block 3 chassis (bottom) assy 1 precision screws ( P 1.7x1.8 ) 2 precision screws (P 1.7x1.8) 5 bearing (ELV) 8 bearing (ELV) 1 cushion 3 escutcheon 6 chassis (front) 7 collar (EHS) 5 lead stopper !∞ CN700 !¢ CN701 !£ CN603 !¡ CN601 0 CN600 !™ CN500 9 CN602 !• MAI[...]

  • Page 9

    – 9 – 1 screws (K1.7x3.5 ) 2 optical pick-up 1 CN200 6 CN100 5 CN300 4 CN400 3 screws (M1.7x2.2) 7 SERVO board 2 Unsolder the motor lead wires. 3-7. SER V O BO ARD 3-8. OPTICAL PICK-UP[...]

  • Page 10

    – 10 – A B B B A A 2 Turn the three feed screw (ELV) assy fully in the direction of arrows A . !¡ Turn the three gear (ELVB) fully in the direction of arrows B . 6 bearing (ELV) 7 bearing (ELV) 0 precision screws (P1.7x1.8) 9 precision screw (P1.7x1.8) 8 chassis (bottom) assy 5 chassis (OP) block 3 bearing (ELV) 4 bearing (ELV) 1 worm wheel (E[...]

  • Page 11

    – 11 – 4-1. IC PIN DESCRIPTIONS • IC100 CXA2523AR (RF AMP) Pin No . Pin Name I/O Pin Description 1 I I I-V con verted RF signal input (I) from detector of optical pick-up. 2 J I I-V con verted RF signal input (J) from detector of optical pick-up. 3 VC O Center voltage (+1.65 V) generation output 4 – 9 A – F I Signal input (A to F) from de[...]

  • Page 12

    – 12 – • IC600 µ PD784216GC-027-8EU (SYSTEM CONTR OLLER) Pin No . Pin Name I/O Pin Descr iption 1 M1 O Elev ator motor (M904) drive signal output 2 M1 O Elev ator motor (M904) drive signal output 3 M2 O Loading motor (M903) driv e signal output 4 M2 O Loading motor (M903) driv e signal output 5 MDMON O Mechanism deck system po wer control ou[...]

  • Page 13

    – 13 – Pin No . Pin Name I/O Pin Description 63 — O Not used. 64 EE CS O Chip select output to EEPROM. (Not used in this set.) 65 EE CK O O Serial clock output to EEPR OM. (Not used in this set.) 66 EE SIO I/O Data input from/output to EEPR OM. (Not used in this set.) 67 SENS I Internal status input from CXD2652AR (IC200). 68 LIMIT SW I Optic[...]

  • Page 14

    – 14 – SENSOR board POWER board SERVO board LAMP board MAIN board 4-2. CIRCUIT BO ARDS LOCA TION[...]

  • Page 15

    – 15 – – 16 – 4-3. BLOCK DIAGRAM MDX-65 +9V DCS6 DCS1 11 FOCUS 8 DRIVER CONTROL 5 6 IC300 SLED/SPINDLE MOTOR DRIVE, FOCUS/TRACKING COIL DRIVE 26 TRACKING 29 DRIVER CONTROL 32 31 24 M902 (SLED) 04 22 DRIVER CONTROL 19 20 M 15 M901 (SPINDLE) 13 DRIVER CONTROL 17 18 M 7 4 6 9 11 APC 10 PD LD AUTOMATIC POWER CONTROL Q100 IC100 RF AMP SWDT SCLK [...]

  • Page 16

    – 17 – – 18 – MDX-65 4-4. PRINTED WIRING BO ARDS — SER V O SECTION — THIS NOTE IS COMMON FOR PRINDED WIRING BOARDS AND SCHEMA TIC DIAGRAMS. (In addition to this, the necessary note is printed in each block.) for schematic diagrams • All capacitors are in µ F unless otherwise noted. pF: µµ F 50 WV or less are not indicated except fo[...]

  • Page 17

    – 19 – – 20 – MDX-65 (Page 27) D300 C-4 IC100 E-2 IC200 B-4 IC201 A-3 IC202 E-5 IC300 D-4 Q100 F-4 Q200 C-4 Ref. No. Location • Semiconductor Location[...]

  • Page 18

    4-5. SCHEMA TIC DIA GRAM — SER V O SECTION — • Refer to page 33 for W aveforms and pa ge 35 for IC Block Dia grams. – 21 – – 22 – MDX-65 (P age 23)[...]

  • Page 19

    – 23 – – 24 – MDX-65 4-6. SCHEMA TIC DIA GRAM — MAIN SECTION — • Refer to page 34 for W aveforms and pa ge 37 for IC Bloc k Diagrams. (P age 22) (P age 32)[...]

  • Page 20

    MDX-65 – 25 – – 26 – 4-7. PRINTED WIRING BOARDS — MAIN SECTION — D500 C-3 D501 C-3 D600 C-2 D601 B-2 D602 E-2 D800 A-3 D801 A-4 IC500 B-3 IC600 D-2 IC601 C-2 IC602 D-4 IC603 D-4 IC700 C-1 IC701 B-2 Q500 C-3 Q600 E-3 Q601 E-3 Q602 B-2 Q800 B-3 Q801 A-3 Ref. No. Location • Semiconductor Location ( ) : SIDE B[...]

  • Page 21

    – 27 – – 28 – MDX-65 (Page 30) (Page 20)[...]

  • Page 22

    – 30 – MDX-65 – 29 – 4-8. PRINTED WIRING BO ARD — PO WER BOARD — D900 B-2 D901 B-2 D902 A-2 D903 A-2 D904 A-2 D905 A-2 D930 D-4 D940 E-6 D941 E-7 D950 E-5 D951 E-4 D952 E-3 D970 D-9 IC900 B-3 (IC902) E-1 IC930 C-4 IC970 E-7 Q910 C-2 Q920 C-2 Q930 D-5 Q931 D-3 Q932 B-3 Q940 E-6 Q941 E-6 Q950 E-3 Q970 E-4 Q972 D-8 Ref. No. Location • Se[...]

  • Page 23

    – 31 – – 32 – MDX-65 4-9. SCHEMA TIC DIA GRAM — PO WER SECTION — • Refer to page 37 for IC Bloc k Diagrams. (P age 24)[...]

  • Page 24

    3.2 Vp-p 89 ns 2.8 Vp-p 354 ns 2.8 Vp-p 22.7 µ s 2.6 Vp-p 30.4 µ s 2.7 Vp-p 71 ns 2.8 Vp-p 44.3 ns 3.2 Vp-p 354 ns 3.2 Vp-p 22.7 µ s 2.0 Vp-p 400 mVp-p Approx. 1.1 Vp-p 150 mVp-p Approx. 150 mVp-p Approx. 150 mVp-p Approx. 150 mVp-p – 33 – – 34 – • W aveforms – Servo Section – 1 IC100 4 (A) PLA Y MODE 200 mV/DIV , 10 µ sec/DIV 2 I[...]

  • Page 25

    – 35 – –1 –2 + – IVR BB + – IVR AA + – IVR CC + – IVR DD + – IVR + – EE EE' EFB TESW PTGR 48 MORFO 47 MORFI 46 RFO 45 OPN 44 OPO 43 ADDC 42 COMPP 41 COMPO 40 AGCI 39 RF AGC 38 RF 37 PEAK 36 BOTM 35 ABCD 34 FE 33 AUX 32 ADFG 31 ADAGC 30 ADIN 29 ADFM 28 SE 27 CSLED 26 TE 25 WBLADJ 24 VCC 23 3TADJ 22 EQADJ 21 VREF 20 F0CNT 19 [...]

  • Page 26

    – 36 – 15 13 12 11 DC/DC CONVERTER CLK DETECTOR PRE-DRIVER CONTROL DRIVER PRE-DRIVER CONTROL DRIVER PRE-DRIVER CONTROL DRIVER PRE-DRIVER CONTROL DRIVER 36 35 34 33 32 31 30 29 28 27 26 25 24 23 22 21 20 19 18 17 16 1 2 3 4 5 6 7 8 9 10 14 VC VC VC VC VC VC VC VC VC VC PI4 PGND PGND RO3 VD RO4 PGND FO4 VD F/R4 FO3 VD FI3 RI3 VG GND PS OE RI2 FI2[...]

  • Page 27

    – 37 – 1 2 3 4 5 6 7 8 9 10 GND IN1 VCC IN2 GND N.C. OUT2 VS OUT1 N.C. CONTROL LOGIC REFERENCE VOLTAGE S.C.P. COMPARATOR 1 SWITCH 'ON' AT 'H' PWM COMPARATOR S.C.P. COMPARATOR 2 DEAD-TIME COMPARATOR S.C.P. LATCH OSC U.V.L.O ERROR AMP – + + – + – + – – + 5 6 7 8 1 2 3 4 OUT VCC FEED BACK INPUT SCP DEAD-TIME CONTROL R[...]

  • Page 28

    – 38 – 1 2 3 4 19 5 18 6 7 8 9 10 10 13 12 14 15 15 16 17 A A 8 #1 #1 #1 #1 2 16 16 11 20 21 SECTION 5 EXPLODED VIEWS NOTE: • The mechanical parts with no reference number in the exploded vie ws are not supplied. • Items marked “*” are not stocked since they are seldom required for routine service. Some delay should be anticipated when [...]

  • Page 29

    – 39 – 59 58 57 56 55 54 53 63 52 51 62 61 56 60 MG-798K-133 56 57 56 64 5-2. MAIN BO ARD SECTION Ref. No. Part No. Description Remark Ref. No. Part No. Description Remark * 5 1 3-931-149-02 SHEET (MAIN PC BOARD) * 5 2 A-3294-565-A MAIN BOARD, COMPLETE (US,Canadian,E) * 5 2 A-3294-667-A MAIN BO ARD , COMPLETE (AEP ,UK) 5 3 1-776-474-11 CABLE, F[...]

  • Page 30

    – 40 – 102 103 104 101 105 106 107 S903 #4 #2 #2 #2 M904 #2 #2 #3 #4 S902 108 118 117 109 110 111 109 112 113 114 109 116 112 112 115 M903 101 101 109 5-3. MD SECTION (1) (MG-798K-133) Ref. No. Part No. Description Remark Ref. No. Part No. Description Remark 1 01 3-317-552-71 SCREW (M1.7) 1 02 3-930-314-01 ESCUTCHEON 1 03 3-930-319-01 BUTTON (S[...]

  • Page 31

    – 41 – 163 151 152 #2 153 154 155 156 157 158 159 160 161 162 162 170 169 168 167 164 166 165 160 5-4. MD SECTION (2) (MG-798K-133) Ref. No. Part No. Description Remark Ref. No. Part No. Description Remark * 1 51 X-3371-209-3 CHASSIS (TOP) ASSY * 1 52 3-020-388-01 GUIDE (HOLDER 2) 1 53 3-930-318-01 BUTTON (EJECT) ( 6 1) 1 54 3-930-318-11 BUTTON[...]

  • Page 32

    – 42 – 207 206 205 225 204 203 202 201 223 222 219 221 220 224 214 212 211 226 209 208 #6 #6 213 215 216 M901 #7 #5 M902 #6 #6 #6 RV901 #2 #4 S901 #5 217 218 207 206 205 203 201 210 5-5. MD SECTION (3) (MG-798K-133) Ref. No. Part No. Description Remark Ref. No. Part No. Description Remark The components identified by mark ! or dotted line with [...]

  • Page 33

    – 43 – SECTION 6 ELECTRICAL P ARTS LIST NO TE: • Due to standardization, replacements in the parts list may be different fr om the parts specified in the diagrams or the components used on the set. • -XX and -X mean standardized parts, so they may hav e some difference from the original one. • RESISTORS All resistors are in ohms. MET AL:M[...]

  • Page 34

    – 44 – Ref. No. Part No. Description Remark Ref. No. Part No. Description Remark PO WER MAIN IC700 8-759-823-87 IC LB1638M IC701 8-759-823-87 IC LB1638M < RESISTOR > JC501 1-216-821-11 M E T A L CHIP 1 K 5% 1/16W < COIL > L600 1-412-058-11 INDUCTOR CHIP 10uH < TRANSISTOR > Q500 8-729-424-12 TRANSISTOR UN2112 Q600 8-729-904-60 [...]

  • Page 35

    – 45 – Ref. No. Part No. Description Remark Ref. No. Part No. Description Remark PO WER C973 1-164-004-11 CERAMIC CHIP 0.1uF 10 % 25V C974 1-164-004-11 CERAMIC CHIP 0.1uF 10 % 25V C975 1-126-204-11 ELECT CHIP 47uF 2 0 % 16 V C976 1-128-590-11 ELECT CHIP 100uF 2 0 % 6.3V C977 1-128-590-11 ELECT CHIP 100uF 2 0 % 6.3V C978 1-128-590-11 ELECT CHIP [...]

  • Page 36

    – 46 – Ref. No. Part No. Description Remark Ref. No. Part No. Description Remark SER V O A-3317-382-A SENSOR BOARD, COMPLETE ************************ When replacing any parts in the SENSOR board, the whole mounted board should be replaced. ************************************************************* * A-3294-337-A SERVO BOARD, COMPLETE *******[...]

  • Page 37

    – 47 – Ref. No. Part No. Description Remark Ref. No. Part No. Description Remark SER V O The components identified by mark ! or dotted line with mark. ! are critical for safety . Replace only with part number specified. Les composants identifiés par une marque ! sont critiques pour la sécurité. Ne les remplacer que par une piéce portant le [...]

  • Page 38

    – 48 – Sony Corporation P ersonal & Mobile Communication Compan y 9-926-423-11 MDX-65 99A0478-1 Printed in Japan C 1999. 1 Published b y Quality Assurance Dept.[...]