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Sony MZ-E505 manual

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Table of contents for the manual

  • Page 1

    SERVICE MANUAL POR T ABLE MINIDISC PLA YER E Model SPECIFICA TIONS MZ-E505 US and f oreign patents licensed from Dolby Laboratories. – Continued on ne xt page – Model Name Using Similar Mechanism NEW Mechanism T ype MT -MZE505-176 Optical Pick-up Name LCX-4E V er 1.0 2002. 02 9-873-487-01 Sony Corporation 2002B0500-1 Per sonal Audio Company C 2[...]

  • Page 2

    2 MZ-E505 T ABLE OF CONTENTS 1. SER VICING NO TES ............................................... 3 2. GENERAL ................................................................... 4 3. DISASSEMBL Y 3-1. Disassembly Flow ........................................................... 5 3-2. Battery Case Lid ...............................................[...]

  • Page 3

    3 MZ-E505 NO TES ON HANDLING THE OPTICAL PICK-UP BLOCK OR BASE UNIT The laser diode in the optical pick-up block may suf f er electro- static break-do wn because of the potential difference generated by the charged electrostatic load, etc. on clothing and the human body . During repair , pay a ttention to electrostatic break-down and also use the p[...]

  • Page 4

    4 MZ-E505 SECTION 2 GENERAL This section is e xtracted from instruction manual. P ar ts and controls The Player 3 2 1 4 9 q; 8 6 7 5 1 . / N> * button 2 V OL +*/ – button 3 i (earphones) jack 4 OPEN switch 5 Battery compartment 6 GR OUP button 7 x button 8 HOLD (Locking the control) switch 9 T erminals for charging stand/ dry battery case (at [...]

  • Page 5

    5 MZ-E505 • This set can be disassembled in the order sho wn below . 3-1. DISASSEMBL Y FLO W SECTION 3 DISASSEMBL Y SET 3-3. CASE (REAR) (P age 6) 3-4. MAIN BOARD (P age 7) 3-6. SWITCH BOARD (P age 8) 3-2. BA TTERY CASE LID (P age 6) 3-5. UPPER P ANEL SECTION (P age 7) 3-7. HOLDER ASSY (Z) (P age 8) 3-8. MECHANISM DECK (MT -MZE505-176) (P age 9) [...]

  • Page 6

    6 MZ-E505 3-3. CASE (REAR) 1 Open the battery case lid. 2 claw 3 battery case lid 1 Close the battery terminal board assy. 2 screw (1.7) 3 two screws (M1.4 ) 4 Remove the case (rear) in the direction of the arrow. 3 two screws (M1.4) Note: Follo w the disassembly procedure in the numerical order given. 3-2. B A TTER Y CASE LID[...]

  • Page 7

    7 MZ-E505 3-4. MAIN BO ARD 3-5. UPPER P ANEL SECTION 1 Remove solder of the battery terminal board assy. 2 five screws (M1.4 × 2) 8 main board 4 boss 5 7 flexible board (motor) (CN551) 6 flexible board (optical pick-up) (CN501) 3 flexible board (switch board) (CN801) 2 Open the upper section. 3 two screws (M1.4) 4 upper panel section 1 flexible bo[...]

  • Page 8

    8 MZ-E505 3-6. SWITCH BO ARD 3-7. HOLDER ASSY (Z) 2 convex portion 2 convex portion 3 switch board 1 four screws (1.7 × 2.5) 1 convex portion 4 holder assy (Z) 1 convex portion 3 two bosses 2[...]

  • Page 9

    9 MZ-E505 3-8. MECHANISM DECK (MT -MZE505-176) 7 flexible board (motor) (CN551) 8 mechanism deck (MT-MZE505-176) 6 flexible board (optical pick-up) (CN501) 1 step screw (L) 5 Lift up the mechanism deck in the direction of the arrow. 3 claw 2 nut (M1.4) 4 convex portion[...]

  • Page 10

    10 MZ-E505 3-9. BRA CKET (L) ASSY 3-10. BRA CKET (R) ASSY 1 two claws 2 convex portion 2 convex portion 3 bracket (L) assy 3 bracket (R) assy Note: On installation, adjust the position of knob (open) and open slider. open slider 2 convex portion 1 claw 2 convex portion 1 claw 2 convex portion 1 claw 1 claw 2 convex portion knob (open)[...]

  • Page 11

    11 MZ-E505 1 washer 2 gear (SA ) 3 screw (M1.4) 4 thrust detent spring 5 optical pick-up (LCX-4E) 3-11. OPTICAL PICK-UP (LCX-4E) 3-12. DC SSM18B MO TOR (SPINDLE) (M901) 1 Remove the four solders. 3 three tapping screws 2 Remove the flexible board. 4 DC SSM18B motor (spindle) (M901)[...]

  • Page 12

    12 MZ-E505 3-13. DC MO T OR (SLED) (M902) 4 two screws (M1.4) 5 DC motor (sled) (M902) 1 Remove the four solders. 2 washer (0.8-2.5 ) 3 gear (SA)[...]

  • Page 13

    13 MZ-E505 Remote control LCD • Press and hold down X ke y to hold the cur rent display while the ke y is being pressed. 4-2-3. How to release the TEST MODE When method 1 was used: T urn off the po w er and open the solder bridge on T AP601 on the main board. Note: The solder should be remov ed clean. The r emaining solder may make a short with t[...]

  • Page 14

    14 MZ-E505 4-4. MANU AL MODE 4-4-1. Outline of the function The Manual mode is designed to perform adjustments and operational checks on the set ’ s operation according to each individual function. Usually , no adjustments are made in this mode. Howe ver , the Manual mode is used to clear the memory before performing automatic adjustments in the [...]

  • Page 15

    15 MZ-E505 5. T o terminate the Manual mode and return to the TEST MODE, press x key . 4-5. O VERALL ADJUSTMENT MODE 4-5-1. Outline of the function This mode is designed to adjust the serv o system automatically by going through all the adjustment items. Usually , this mode is used to perfor m automatic adjustments when servicing the set. For furth[...]

  • Page 16

    16 MZ-E505 Contents of fault Displa y code Meaning of code Simplified Description contents No error 00 No error – – – – No error 01 Access tar get address illegally specified Adrs An attempt to access an abnormal address. Serv o system er ror 02 HIGH TEMP T emp HIGH TEMP 03 FOCUS ERR OR Fcus Focus of f-center . 04 SPINDLE ERR OR Spdl Abnorm[...]

  • Page 17

    17 MZ-E505 4-8. KEY CHECK MODE 4-8-1. Outline of the function This mode is used to check to make sure that each of the ke ys (including the slide switch) on the set operates normally . 4-8-2. Setting the Key Chec k mode 1. Set the TEST MODE. Press and hold do wn DISPLA Y key (for more than 3 sec) to set the K ey Check mode. LCD display 2. When each[...]

  • Page 18

    18 MZ-E505 5-4. MANU AL PO WER ADJUSTMENTS 5-4-1. Adjustment sequence The adjustments should be always performed in the follo wing se- quence: 1 Vc PWM Duty (L) adjustment (item No.:762) r 2 Vl PWM Duty adjustment (item No.:764) r 3 Vb A/D value check (item No.:731) 5-4-2. Vc PWM Duty (L) adjustment Connection: SECTION 5 ELECTRICAL ADJUSTMENTS 5-1.[...]

  • Page 19

    19 MZ-E505 000 XXX NG 000 CD OK XXX MO RUN 5-4-3. VI PWM Duty adjustment Connection: Procedure: 1. Set the Manual mode and set the item No. to 764. LCD display 2. Connect a digital v oltmeter to TP904 (VL) and TP921 (GND) on the main board and adjust V OL + (V oltage up) and V OL – (V oltage down) on the remote control. Adjustment value:2.23V Sta[...]

  • Page 20

    20 MZ-E505 6. If NG in the overall MO adjustments, return to Reset NV and perform the adjustment again. LCD display XXX: NG item No. 7. If OK through the ov erall MO adjustments, press x ke y to return to the TEST MODE and ter minate the Overall Adjust- ment mode. LCD display 5-5-3.Resume clear method 1. Setting the testmode. 2. Set the Manual mode[...]

  • Page 21

    21 MZ-E505 Item No . Contents 230 T racking servo ON 236 ABCD gain adjustment 237 KF gain adjustment 238 RF gain adjustment 244 FCS gain adjustment 245 TRK gain adjustment READ GR V adjustment 1 100 R GR V setting 562 SLED move to outside 120 Focus servo OFF 122 TON offset adjustment 121 TE gain adjustment 122 TON offset adjustment 123 TEIN offset [...]

  • Page 22

    22 MZ-E505 5. Judge LED v oltage value is OK or NG by using the v oltage value conf irmed at step 3 and 4. IN case of jadgment result is NG, adjust the LED v olta ge (See page 23). flo w chart of judging LED voltage is OK or NG: Vred: High luminosity RED voltage value (item No. 071) Vgrn: High luminosity GREEN voltage value (item No. 075) Strat 0.5[...]

  • Page 23

    MZ-E505 23 23 5-6-2. LED voltage adjustment Note: This adjustment performed only w hen the judgment result of judging LED v oltage value is OK or NG is NG (See page 22). Connection: Procedure: 1. Set the Manual mode and set the item No. to 071. LCD display XXX: A/D v alue. 2. Connect a digital v oltmeter to TP902 (VCOUT) and TP815 (LED ADJ) on the [...]

  • Page 24

    MZ-E505 24 24 D901 (BATTERY CASE) VG L902 L901 (TRACKING) (FOCUS) 2-AXIS DEVICE 12 160 161 9 194 195 221 XRF RST PD S1 XCS NV SI0 SCK0 S00 PD S0 S MON SSB CLK SSB DATA VREF MON MUTE XHP STBY BEEP 142 RMC DTCK 13 SET KEY 1 17 WK DET 227 XHOLD SW 20 RMC KEY VC PWM 164 165 VL PWM 86 FS4 235 SLEEP 236 FFCLR 8 XRST 21 AVDD 5 2 CLK INM2 INM1 RF2 RF1 VRMC[...]

  • Page 25

    MZ-E505 25 25 Note on Schematic Diagram: • All capacitors are in µ F unless otherwise noted. pF: µµ F 50 WV or less are not indicated except f or electrolytics and tantalums. • All resistors are in Ω and 1 / 4 W or less unless otherwise specified. • C : panel designation. • A : B+ Line. • T otal current is measured with MD installed.[...]

  • Page 26

    MZ-E505 26 26 C997 R912 C916 R911 R914 R913 R946 R950 R964 C917 C915 R948 R920 C918 C905 C908 C921 R903 R909 R811 C909 C910 R910 R916 R922 R915 R827 C808 C803 R516 C527 R517 R505 C530 C504 C503 C505 C502 R501 R503 C501 R525 C508 C565 R819 C302 R105 R205 R301 R303 C516 C515 C513 C511 C509 C519 R526 C510 C806 R808 C601 R618 R515 C526 C604 R601 C619 C[...]

  • Page 27

    MZ-E505 27 27 C999 R521 C952 + C529 + C524 + L503 C907 C904 + C922 + C903 + C919 + C901 + C911 + L904 L905 C914 C559 C558 C557 C563 C564 R817 R203 R103 C854 C853 C851 C351 C202 + C102 + D101 KA 1 8 CN551 D201 KA S809 OPEN/CLOSE DETECT COM L GND KEY DATA VDD (11) 11 1-683-347- IC903 12 3 C920 L901 L902 R519 Q501 E C B CN501 12 0 IC551 1 14 15 28 42 [...]

  • Page 28

    MZ-E505 28 28 6-5. SCHEMA TIC DIA GRAM – MAIN Board (1/3) –• See page 25 for W aveform. • See page 31 f or IC Block Diagrams. C508 C511 C513 C516 C501 C510 R606 C607 C802 C603 C604 C601 R807 R806 C608 C699 R501 C610 R503 R607 C613 R614 C615 R603 R526 R525 R618 C808 IC801 C606 C609 C619 C810 X601 R615 R612 R609 R605 C611 C612 R613 C618 C616 [...]

  • Page 29

    MZ-E505 29 29 6-6. SCHEMA TIC DIA GRAM – MAIN Board (2/3) –• See page 25 for Wa veform. • See page 31 for IC Bloc k Diagrams. R950 C917 C907 C904 R964 R915 R916 C914 IC903 C901 C922 R948 L901 C921 C908 C909 Q901 C911 C920 C919 R946 C903 R911 C916 R912 C557 C558 C559 C565 C564 C563 C999 C996 C997 R920 D903 CN551 C918 L904 D902 L902 L905 C910[...]

  • Page 30

    MZ-E505 30 30 6-7. SCHEMA TIC DIA GRAM – MAIN Board (3/3) –• See page 25 for Wa veform. • See page 31 for IC Block Diagrams. C204 R204 C203 C305 C303 C302 C854 C851 C306 FB801 FB802 J301 C853 C351 R922 R106 R206 C202 C102 C106 R107 R103 R203 D855 C994 C955 C304 R302 R303 C301 R105 C104 C804 C803 R818 RB301 C101 C201 TAP801 R301 R819 R817 CN[...]

  • Page 31

    31 MZ-E505 • IC Block Dia grams IC301 T A2131FL (EL) V REF MT SW BST SW BEEP 19 20 21 22 23 24 18 17 16 15 14 13 PW SW 12 11 10 8 7 BST1 9 BST2 6 5 4 3 2 1 BST AGC PW B PW A ADD MT TC VCC1 INB INA BEEP OUTB BEEP OUTA VCC2 OUTA PWR GND OUTB DET A GC IN BST OUT BST NF2 LPF2 BST NF1 LPF1 VREF VREF IN GND BEEP IN BST SW MT SW PW SW IC501 SN761057ADBT[...]

  • Page 32

    32 MZ-E505 IC551 SC111258FCR2 VC VG VC 43 48 47 44 45 46 49 50 51 52 53 54 55 56 1 2 3 4 5 42 41 39 37 38 40 6 35 34 33 36 31 30 29 32 8 9 10 7 12 13 14 15 11 26 27 28 24 23 22 21 20 25 17 16 18 19 UI2 OE CPWO2 PWM2 CPUO2 CPVO2 GND1 VC VG CPWO1 CPVO1 CPUO1 PWM1 UI1 VI1 WI1 PGNDW1 WO1 VMVW1 VO1 UO1 VMU1 VMR1 PGNDUV1 PGND1 FO1 VMF1 RO1 FI1 COM2 RI2 F[...]

  • Page 33

    33 MZ-E505 IC901 XPC18A32FCR2 42 41 40 39 38 36 35 34 33 32 31 30 29 37 28 27 26 25 24 23 22 20 19 18 17 16 15 14 13 12 11 10 9 8 7 6 5 4 3 2 1 56 55 54 53 52 51 50 49 48 47 46 45 44 43 + – + – CLK SLEEP FFCLR VAIFON CLKSEL GND VB VREF RSTREF CRST XRST VC2 VD NC P GND2 P GND2 L2 VL VLO VL GND VRMC VSTB XWK4 XWK3 XWK2 XWK1 VLON L1 RF1 INM1 DTC1 [...]

  • Page 34

    34 MZ-E505 6-8. IC PIN FUNCTION DESCRIPTION • IC501 SN761057ADBT (RF AMP, FOCUS/TRACKING ERROR AMP) Pin No. Pin Name I/O Description 1 TE O Tracking error signal output to the system controller 2 REXT — Connect terminal to the external resistor for ADIP amp control 3 WPP-LPF — Connect terminal to the external capacitor for TPP/WPP low-pass fi[...]

  • Page 35

    35 MZ-E505 • IC801 CXD2671-210GA (SYSTEM CONTROLLER, DIGITAL SIGNAL PROCESSOR, 16M BIT D-RAM) Pin No. Pin Name I/O Description 1 SCS1 — Not used 2 SI1 — Not used 3 SO1 — Not used 4 SCK1 — Not used 5 78 DD CTL — Not used 6 MCUVDD0 — Power supply terminal (for microcomputer block) (+1.5V) 7 MIFVSS3 — Ground terminal (for microcomputer[...]

  • Page 36

    36 MZ-E505 Pin No. Pin Name I/O Description 45 BOTM I Bottom hold signal input of the light amount signal (RF/ABCD) from RF amp 46 ABCD I Light amount signal (ABCD) input from RF amp 47 FE I Focus error signal input from RF amp 48 AUX1 I Support signal (I 3 signal/temperature signal) input terminal (A/D input) Not used 49 VC I Middle point voltage [...]

  • Page 37

    37 MZ-E505 Pin No. Pin Name I/O Description 90 SPDW O Spindle motor drive control signal output (W) to the motor driver 91 DSPVDD2 — Power supply terminal (for DSP block) (+1.5V) 92 DSPVSS1 — Ground terminal (for DSP block) 93 SPCU I Spindle motor drive comparison signal input (U) from the motor driver 94 SPCV I Spindle motor drive comparison s[...]

  • Page 38

    38 MZ-E505 Pin No. Pin Name I/O Description 156, 157 TEST1, TEST0 I Input terminal for the main test (normally fixed at “ L ” ) 158 EVA I EVA/FLASH chip discrimination terminal “ L ” : FLASH chip, “ H ” : EVA chip 159 NC — Not used 160 SSB DATA I/O Input/output of SSB data with RF amp 161 SSB CLK O SSB clock output to RF amp 162 MCUVS[...]

  • Page 39

    39 MZ-E505 Pin No. Pin Name I/O Description 204 XPD ADA O Power supply control signal output terminal Not used 205 XCS LCD O Chip select signal output terminal Not used 206 LCD STB O Strobe signal output terminal Not used 207 OPR LED G H O Not used 208 REC OPR LED O LED ON/OFF control signal output terminal for REC display Not used 209 OPR LED G L [...]

  • Page 40

    40 MZ-E505 SECTION 7 EXPLODED VIEWS The components identified by mark 0 or dotted line with mark 0 are critical for safety . Replace only with part number specified. • Items marked “ * ” are not stocked since the y are seldom required for routine service. Some delay should be anticipated when ordering these items. • The mechanical parts wit[...]

  • Page 41

    41 MZ-E505 Ref. No. Part No. Description Remark Ref. No. Part No. Description Remark 51 3-335-797-01 SCREW (M1.4X2), TOOTHED LOCK * 52 A-3021-679-A MAIN BOARD, COMPLETE 53 3-235-193-01 KNOB (OPEN) 54 3-235-223-01 TERMINAL BOARD (MINUS) 55 3-235-192-32 BEL T , ORNAMENT AL (SIL VER) 55 3-235-192-42 BEL T , ORNAMENT AL (BLUE) 55 3-235-192-52 BEL T , O[...]

  • Page 42

    42 MZ-E505 Ref. No. Part No. Description Remark Ref. No. Part No. Description Remark 301 3-222-392-01 SCREW (M1.4), T APPING 302 3-222-391-01 SPRING (M), RACK 0 303 X-3379-869-1 OPTICAL PICK-UP (LCX-4E) 304 4-222-203-02 SCREW , LEAD 305 3-043-237-02 BEARING (N) 306 4-222-208-01 GEAR (SB) 307 3-225-996-01 SCREW (M1.4) (EG), PRECISION PAN 308 3-224-7[...]

  • Page 43

    43 MZ-E505 SECTION 8 ELECTRICAL P ARTS LIST Ref. No. Part No. Description Remark Ref. No. Part No. Description Remark MAIN NO TE: • Due to standardization, replacements in the parts list may be dif f erent from the parts speci- fied in the diagrams or the components used on the set. • -XX and -X mean standardized parts, so they may hav e some d[...]

  • Page 44

    Ref. No. Part No. Description Remark Ref. No. Part No. Description Remark 44 MZ-E505 MAIN C922 1-119-750-11 T ANT ALUM CHIP 22uF 20% 6.3V C952 1-128-964-11 T ANT ALUM CHIP 100uF 20% 6.3V C994 1-164-931-11 CERAMIC CHIP 100PF 10% 50V C995 1-107-820-11 CERAMIC CHIP 0.1uF 16V C996 1-164-931-11 CERAMIC CHIP 100PF 10% 50V C997 1-107-820-11 CERAMIC CHIP 0[...]

  • Page 45

    Ref. No. Part No. Description Remark Ref. No. Part No. Description Remark 45 MZ-E505 < COMPOSITION CIRCUIT BLOCK > RB301 1-233-970-21 RES, NETWORK (CHIP TYPE) 33K RB553 1-233-967-11 RES, NETWORK (CHIP TYPE) 10K RB554 1-233-964-21 RES, NETWORK (CHIP TYPE) 3.3K < SWITCH > S808 1-762-078-11 SWITCH, SLIDE (HOLD) S809 1-786-101-12 SWITCH, DE[...]

  • Page 46

    MZ-E505 REVISION HIST OR Y Clicking the ver sion allows y ou to jump to the revised page. Also, clicking the v ersion at the upper right on the re vised page allows you to jump to the ne xt revised page. V er . Date Description of Revision 1.0 2002.02 N e w[...]