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Sony MT-MZR70-165 manuel d'utilisation

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Table des matières du manuel d’utilisation

  • Page 1

    – 1 – MZ-R70 SERVICE MANUAL POR T ABLE MINIDISC RECORDER Model Name Using Similar Mechanism MZ-R90/R91 Mechanism T ype MT -MZR70-165 Optical Pick-up Name LCX-2R (Photo: Silver) System Audio playing system MiniDisc digital audio system Laser diode properties Material: GaAlAs W avelength: λ = 790 nm Emission duration: continuous Laser output: le[...]

  • Page 2

    – 2 – Fle xible Circuit Boar d Repairing • Keep the temperature of the soldering iron around 270°C during repairing. • Do not touch the soldering iron on the same conductor of the circuit board (within 3 times). • Be careful not to apply force on the conductor when soldering or unsoldering. Notes on c hip component replacement • Never [...]

  • Page 3

    – 3 – 1. SER VICING NO TE ......................................................... 4 2. GENERAL ......................................................................... 5 Looking at the Controls ........................................................ 5 Recording an MD Right A way! ............................................ 6 Playing an MD [...]

  • Page 4

    – 4 – SECTION 1 SER VICING NO TE NOTES ON HANDLING THE OPTICAL PICK-UP BLOCK OR B ASE UNIT The laser diode in the optical pick-up block may suffer electro- static break-down because of the potential dif ference generated by the charged electrostatic load, etc. on clothing and the human body . During repair , pay attention to electrostatic break[...]

  • Page 5

    – 5 – SECTION 2 GENERAL This section is extracted from instruction manual.[...]

  • Page 6

    – 6 –[...]

  • Page 7

    – 7 –[...]

  • Page 8

    – 8 – Note : This set can be disassemble according to the following sequence. SECTION 3 DISASSEMBL Y 3-1. BLOCK ASSY , BO TTOM 3-2. P ANEL BLOCK ASSY , UPPER Note : Follow the disassembly procedure in the numerical order given. Set Block Assy, Bottom Panel Block Assy, Upper LCD Module Main Board MD Mechanism Deck Service Assy, OP Motor Flexible[...]

  • Page 9

    – 9 – 3-3. LCD MODULE 3-4. MAIN BO ARD 1 screws (1.7) 3 LCD module claws 2 4 screw (1.4) qs 5 screw (1.4) 8 screw (1.7) 6 screws (1.7) 7 stay 1 CN601 qd CN501 3 Remov e the solder. qa boss qf MAIN boar d 2 CN602 9 claws 0 claws[...]

  • Page 10

    – 10 – 3-5. MD MECHANISM DECK (MT -MZR70-165) 3-6. SER VICE ASSY , OP 3 boss 4 boss chassis assy 5 MD mechanism deck (MT -MZR70-165) 1 screw (1.4) 2 screw (1.4) 9 bearing 5 screw 4 rack spring 3 precision pan screw (M1.4) 1 washer (0.8 - 2.5) 2 gear (SA) 6 screw 8 Pull off the lead screw . 7 B A 0 Opening the ov er wr ite head toward the direct[...]

  • Page 11

    – 11 – 3-7. HOLDER ASSY 2 Remov e two solders of DC motor (ov er wr ite head up/down) (M603). 1 Remov e four solders of DC motor (sled) (M602). 3 Remov e four solders of DC motor (spindle) (M601). DC motor (sled) circular hole 5 motor flexib le board 4 adhesive sheet Note: Align a circular hole in the str ipping paper with a circular hole in th[...]

  • Page 12

    – 12 – 4 two precision pan screws (M1.4) 5 DC motor (sled) (M602) 1 Remov e four solders of motor flexib le board. 2 washer (0.8 - 2.5) 3 gear (SA) 1 Remov e six solders of motor flexib le board. 4 three precision pan screws (M1.4) qs DC motor (ov er wr ite head up/down) (M603) 6 two precision pan screws (M1.4) qa gear chassis assy 0 screw (M1.[...]

  • Page 13

    – 13 – IC502 FB501 C530 25 26 28 32 36 1 47 118 116 119 120 117 114 113 112 115 110 109 111 104 108 106 104 105 103 101 102 100 144 146 37 46 47 50 53 56 59 64 68 42 45 48 51 55 57 60 63 66 67 145 88 88 87 86 83 81 78 74 72 69 64 63 60 58 90 89 85 84 80 77 75 71 68 65 62 59 57 93 92 91 96 95 94 99 98 97 82 79 76 73 70 67 66 61 55 56 52 53 54 49[...]

  • Page 14

    – 14 – 4-2-4. Configuration of T est Mode Note: * 1) on the set * 2) on the remote commander * 3) on the set or remote commander 4-3. MANU AL MODE Mode to adjust or check the operation of the set by function. Normally , the adjustment in this mode is not executed. • Transition method in Manual Mode 1. Setting the test mode. (See page 13) 2. P[...]

  • Page 15

    – 15 – 5. The display changes a shown below each time the jog key on the set is turned up or [DISPLAY] key on the remote com- mander is pressed. However in the power mode (mode number 700 ’ s), only the power adjustment value is displayed. 6. Quit the manual mode, and press x key to return to the test mode (display check mode). AD 85 731 • [...]

  • Page 16

    – 16 – 4. When [REC] key on the set is pressed, the total of error count is displayed on the LCD, and each time the > key is pressed, the error count descents one by one as shown below . Also, when . key is pressed, the error count ascends by one. If N key is pressed, the error count during play is displayed. ** : Sound skip check items coun[...]

  • Page 17

    – 17 – 4-6. SELF-DIA GNOSIS DISPLA Y MODE • This set uses the self-diagnosis system in which if an error oc- curs in recording/playback mode, the error is detected by the model control and power control blocks of the microprocessor and information on the cause is stored as history in EEPROM. By viewing this history in test mode, it helps you [...]

  • Page 18

    – 18 – • Description of Indication History History code number Description 1st0 The first error 1st1 T otal recording time when 1st0 was generated (Higher rank byte) 1st2 T otal recording time when 1st0 was generated (Lower rank byte) N 0 The last error N 1 T otal recording time when N 0 was generated (Higher rank byte) N 2 T otal recording t[...]

  • Page 19

    – 19 – 4-7. KEY CHECK MODE This set can check if the set and remote commander function nor - mally . • Setting Method of Key Check Mode 1. Setting the test mode. (See page 13) 2. Press the [T MARK] or [DISPLAY] key on the remote com- mander for several seconds activates the key check mode where all segments of LCD turn OFF . (At the last two [...]

  • Page 20

    – 20 – SECTION 5 ELECTRICAL ADJUSTMENTS 5-1. OUTLINE • In this set, automatic adjustment of CD and MO can be per - formed by entering the test mode. (See page 13) However , before starting automatic adjustment, the memory clear , power adjustment and temperature adjustment must be performed in the manual mode. • The keys in the description [...]

  • Page 21

    – 21 – • Adjustment method of VC PWM Duty (L) (mode number: 762) 1. Select the manual mode of the test mode, and set the mode number 762. (See page 14) 2. Connect a digital voltmeter to the TP915 (VC) on the MAIN board, and adjust [VOL +] key (voltage up) or [VOL - -] key (voltage down) so that the voltage becomes 2.5 ± 0.02 V . Proceed to t[...]

  • Page 22

    – 22 – 7. If NG, set the manual mode. Perform automatic adjustment for the items not accepted. (See page 14) • Overall CD adjustment items Item No. Contents 312 313 CD electrical offset adjustment 314 328 CD TWPP gain adjustment 321 CD TE gain adjustment 323 CD TE of fset adjustment 332 336 CD ABCD level adjustment 344 CD focus gain adjustmen[...]

  • Page 23

    – 23 – 13. T o clear the data in overall adjustment mode, set the manual mode and change the mode number 021 (Res NV) to reset the NV . (See page 14) 14. When both CD and MO overall adjustments are OK, set the manual mode and clear the clock data. For the microprocessor version 1.20 or later, set the mode num- ber 043 (Resume). Note: In the mod[...]

  • Page 24

    – 24 – Connecting Location: – MAIN BOARD (SIDE A) – – MAIN BOARD (SIDE B) – TP5105 TP914 TP915 TP1001 TP1002 R1005[...]

  • Page 25

    – 25 – – 26 – 6-1. BLOCK DIAGRAM — MD SECTION — SECTION 6 DIA GRAMS MZ-R70 04 IX IY JX JY C B A D PD-O PD-IN RF AMP ABCD AMP APC TRACKING ERROR FOCUS ERROR PEAK/ BOTM ADIP RF PEAK BOTM FE ADFG OFTRK S-MON WPPLPF XRST DADT RFI PEAK BOTM ABCD FE TE ADFG MNT2 OSCO OSCI APC REF TFDR TRDR FFDR FRDR SLDU SLDV SLDS SLDW SLCW SPVS SPDU SPDV SPD[...]

  • Page 26

    MZ-R70 – 27 – – 28 – 6-2. BLOCK DIAGRAM — A UDIO SECTION — OVER WRITE HEAD DRIVE Q601, 602 SWITCHING REGULATOR Q603 EFM LOGIC A/D CONV. 04 EFM MOTOR DRIVE F1 R1 CLK M603 OVER WRITE HEAD UP/DOWN MOTOR HR601 OVER WRITE HEAD 31 33 5 7 18 19 35 3 2 34 OE 24 REC DW TP EFMO STDO STDI BCLK LRCK MCLK XRST FS4 DW BT REC +B 23 B+SW BATT +B 22 REC[...]

  • Page 27

    MZ-R70 – 29 – – 30 – 04 TO PB SECTION B OE TO REC/AMP SECTION D RMC KEY TO REC/AMP SECTION C SWDT SCLK REC SW & LCD MODULE UNIT PAUSE SYSTEM CONTROLLER IC801 (3/3) 88 83 85 39 40 64 37 78 84 66 REC KEY VC +B WK DET RMC KEY FF CLR SLEEP REG CTL PWM CLK VBAKN HALF LOCK SW VC PWM 65 VPM PWM 58 SERON 43 XRST 45 XTAL VLD +B 46 EXTAL 80 VB MO[...]

  • Page 28

    – 31 – – 32 – MZ-R70 1 A B C D E F G H I 23456789 1 0 1 1 TP904 C638 R619 C632 C525 C925 L901 LF901 TH901 D907 C930 C905 C917 C915 L903 C528 C527 C617 C618 C616 FB505 C304 L301 C303 C202 C113 C103 C102 C334 C625 C623 C624 R525 R636 C640 R526 S802 (OPEN) R815 R811 R834 R835 R808 R806 R840 R805 R803 R802 R801 R614 C600 R814 R812 R938 R928 C92[...]

  • Page 29

    – 33 – – 34 – MZ-R70 1 A B C D E F G H I J 2 3 4 5 6 7 8 9 10 11 12 13 R1005 R1004 R1006 Q1001 IC301 IC501 C210 C108 R211 R112 R118 C216 C118 C116 C320 C322 C212 C332 C111 R319 R317 C208 C110 C335 R109 R108 C217 C117 C323 C306 RB302 CN602 C213 C112 C312 C330 C504 C1004 22 1 23 44 C503 C520 C521 C501 AP502 C340 R218 C318 IC302 87 14 1 R122 R[...]

  • Page 30

    – 35 – – 36 – 6-5. SCHEMA TIC DIA GRAM — MAIN BO ARD (1/3) —• Refer to page 30 for Wa vef orms. • Refer to page 41 for IC Bloc k Diagrams. MZ-R70 (Page 38) (Page 39)[...]

  • Page 31

    – 37 – – 38 – MZ-R70 6-6. SCHEMA TIC DIA GRAM — MAIN BO ARD (2/3) —• Refer to page 42, 43 f or IC Block Diagrams. (Page 36) (Page 39)[...]

  • Page 32

    – 39 – – 40 – MZ-R70 6-7. SCHEMA TIC DIA GRAM — MAIN BO ARD (3/3) —• Refer to page 41, 43 f or IC Block Diagrams. (Page 36) (Page 38)[...]

  • Page 33

    – 41 – IC501 SN761056 IC303 T A2131FL IC302 NJM2173 6-8. IC BLOCK DIA GRAM 1 TE REXT Wpp-LPF VREF C D D-C Iy Ix Jx Jy A A-C B ADIP FE ABCD AVCC OFC-1 OFC-2 PS LP EQ AGND RFOUT CCSL2 VC XRST SCK SBUS VREF075 PEAK BOTM DGND OFTRK S-MON TON-C CIG CDN ADIP DVDD PD-I PD-NI PD-O 43 44 TWpp PK/BTM Aw CSLO VREF075 A-C D-C Malfa Mij AwBPF Dw DwBPF 42 38[...]

  • Page 34

    – 42 – 1 2 3 4 5 6 VC EFM CLK HB PGND1 2 HA VG VG2 C1H C1L VC2 VRECIN OE RECON SW(2.5/1.3V) DTC VREF DW TPOUT GND R1 F1 VRECIN 1 OUTA PGND1 1 OUTB VRECIN 2 VREC 1 LIL 1 PGND2 1 PGND2 2 LIL 2 VREC 2 INM INP RF DW BTOUT 7 8 9 10 11 12 13 14 15 16 CONTROL LOGIC PRE DRIVER STEP UP/DOWN PRE DRIVER PWM EFM PRE DRIVER CHARGE PUMP PRE DRIVER LEVEL DET [...]

  • Page 35

    – 43 – CLOCK DIVIDER CONTROL REGISTER I/F AUDIO I/F CONTROLLER HPF IPGAL MCLK CMODE CCLK(SSI) CDTI(SSO) CDTO DGND VD VB VA AGND VCOM DZF OPGAR ROUT1 PD RST SSB LIN1 RIN1 TST1 LIN2 RIN2 TST2 LIN3 RIN3 LRCK BCLK SDTO SDTI DIFO DIFI TST3 DCODE0 DCODE1 DCODE2 CS(SCK) ADCL VCMC VCMR ADCR IPGAR VRAD LOUT2 ROUT2 VRDA OPGAL LOUT1 ADO DAC DBB DPGA 1 48 [...]

  • Page 36

    – 44 – Pin No. Pin Name I/O Pin Description 1 TE O T racking error signal output to the CXD2660GA (IC502) 2 REXT — Connected to the external resistor for the ADIP amplifier control 3 WPPLPF — Connected to the external capacitor for low-pass filter of the TPP/WPP 4 VREF11 O Reference voltage output terminal (+1.1 V) 5 C I Signal input from t[...]

  • Page 37

    – 45 – Pin No. Pin Name I/O Pin Description 1 VDC0 — Power supply terminal (+1.8 V) (for internal logic) 2 MNT0 I/O Not used (open) 3 MNT1 O Recording shock detect signal output to the system controller (IC801) 4 MNT2 O Off track signal output to the SN761056ADBT (IC501) and system controller (IC801) 5 MNT3 O Focus OK signal output to the sys[...]

  • Page 38

    – 46 – Pin No. Pin Name I/O Pin Description 53 VDIO1 — Power supply terminal (+2.4 V) (for I/O) 54 VSIO1 — Ground terminal (for I/O) 55 to 59 A00, A07, A10, O Address signal output to the external D-RAM Not used (open) A08, A09 60 XRAS O Row address strobe signal output to the external D-RAM “ L ” active Not used (open) 61 IXOE O Output[...]

  • Page 39

    – 47 – Pin No. Pin Name I/O Pin Description 108 VDC4 — Power supply terminal (+1.8 V) (for internal logic) 109 TRDR O T racking servo drive PWM signal ( – ) output to the MPC17A56FT A (IC601) 110 TFDR O T racking servo drive PWM signal (+) output to the MPC17A56FT A (IC601) 111 FFDR O Focus servo drive PWM signal (+) output to the MPC17A56F[...]

  • Page 40

    – 48 – Pin No. Pin Name I/O Pin Description 1 SYNC REC I SYNCHRO REC switch (S801) input terminal “ L ” : of f, “ H ” : on 2 OFTRK I Off track signal input from the CXD2660GA (IC502) 3 PROTECT I Rec-proof claw detect input from the protect detect switch (S806) “ L ” : recording possible, “ H ” : protect 4 P AUSE KEY I Set pause [...]

  • Page 41

    – 49 – Pin No. Pin Name I/O Pin Description 43 XRST I System reset signal input from the MPC18A31FT A (IC901) “ L ” : reset For several hundreds msec. after the power supply rises, “ L ” is input, then it changes to “ H ” 44 VSS — Ground terminal 45 XT AL O Main system clock output terminal (16.9344 MHz) 46 EXT AL I Main system cl[...]

  • Page 42

    – 50 – Pin No. Pin Name I/O Pin Description 87 SET KEY 2 I Set key input terminal (A/D input) ( B , jog, END SEARCH keys input) 88 REC KEY I REC key input terminal 89 VRM MON I VREM voltage monitor input terminal (A/D input) 90 HIDC MON I HI-DC voltage monitor input terminal (A/D input) 91 A VSS — Ground terminal (for A/D converter) 92 A VREF[...]

  • Page 43

    – 51 – 1 3 2 3 4 5 6 11 25 10 10 10 12 9 13 14 16 7 24 15 8 9 3 17 3 18 19 MT -MZR70-165 20 21 22 23 9 9 A B A B C C SECTION 7 EXPLODED VIEWS NOTE: • The mechanical parts with no reference number in the exploded views are not supplied. • Items marked “ * ” are not stocked since they are seldom required for routine service. Some delay sh[...]

  • Page 44

    – 52 – 65 66 67 68 69 67 70 53 71 72 73 54 59 M602 52 53 M601 51 M603 52 55 54 56 57 58 62 52 63 54 64 54 74 60 61 7-2. MECHANISM DECK SECTION (MT -MZR70-165) Ref. No. Part No. Description Remark Ref. No. Part No. Description Remark 51 1-677-513-11 MOTOR FLEXIBLE BOARD 52 4-963-883-42 SCREW (M1.4), PRECISION P AN 53 4-963-883-31 SCREW (M1.4), P[...]

  • Page 45

    – 53 – SECTION 8 ELECTRICAL P ARTS LIST NOTE: • Due to standardization, replacements in the parts list may be different from the parts specified in the diagrams or the components used on the set. • -XX and -X mean standardized parts, so they may have some difference from the original one. • RESIST ORS All resistors are in ohms. MET AL:Met[...]

  • Page 46

    – 54 – C526 1-164-943-11 CERAMIC CHIP 0.01uF 10% 16V C527 1-164-854-11 CERAMIC CHIP 15PF 5% 16V C528 1-164-854-11 CERAMIC CHIP 15PF 5% 16V C529 1-104-847-11 TANT AL. CHIP 22uF 20% 4V C530 1-110-569-11 TANT AL. CHIP 47uF 20% 4V C531 1-164-943-11 CERAMIC CHIP 0.01uF 10% 16V C532 1-164-943-11 CERAMIC CHIP 0.01uF 10% 16V C533 1-164-245-11 CERAMIC C[...]

  • Page 47

    – 55 – Ref. No. Part No. Description Remark Ref. No. Part No. Description Remark FB502 1-414-228-11 FERRITE BEAD INDUCTOR FB503 1-414-228-11 FERRITE BEAD INDUCTOR FB504 1-414-228-11 FERRITE BEAD INDUCTOR FB505 1-414-228-11 FERRITE BEAD INDUCTOR FB601 1-500-329-21 FERRITE BEAD INDUCTOR < IC > IC301 8-759-584-59 IC AK4517A-VQ-L IC302 8-759-[...]

  • Page 48

    – 56 – Ref. No. Part No. Description Remark R517 1-216-864-11 METAL CHIP 0 5% 1/16W R518 1-216-845-11 METAL CHIP 100K 5% 1/16W R519 1-216-821-11 METAL CHIP 1K 5% 1/16W R520 1-216-841-11 METAL CHIP 47K 5% 1/16W R522 1-216-803-11 METAL CHIP 33 5% 1/16W R524 1-216-821-11 METAL CHIP 1K 5% 1/16W R525 1-216-857-11 METAL CHIP 1M 5% 1/16W R526 1-216-82[...]

  • Page 49

    – 57 – Ref. No. Part No. Description Remark < VIBRA TOR > X501 1-781-725-21 VIBRA TOR, CR YST AL (22.5MHz) X801 1-781-575-21 VIBRA TOR, CERAMIC (16.9344MHz) ************************************************************* MISCELLANEOUS *************** 18 1-803-885-11 LCD MODULE 51 1-677-513-11 MOTOR FLEXIBLE BOARD 0 68 X-3378-726-1 SERVICE A[...]

  • Page 50

    – 58 – MZ-R70 Son y Corporation P ersonal A udio Division Compan y 9-927-631-12 2000B0425-1 Printed in Japan C 2000. 2 Pub lished b y General Engineering Dept.[...]

  • Page 51

    SERVICE MANUAL Sony Corporation Audio Entertainment Gr oup 2000I04041-1D Printed in Japan C 2000. 9 Published by General Engineering Dept. 9-927-631-81 • ACCESSORIES & P A CKING MA TERIALS Part No. Description Remark P ag e E model T aiwan model Ref. No. Part No. Description Remark 57 1-418-275-11 ADAPTOR, AC (AC-MZR55) 0 1-418-028-11 ADAPTOR[...]