Sony MD Walkman MZ-E25 Service Manual Download

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MICROFILM

SERVICE MANUAL

PORTABLE MINIDISC PLAYER

US Model

Canadian Model

AEP Model

UK Model

E Model

Australian Model

Model Name Using Similar Mechanism

NEW

Mechanism Type

MT-MZE35-140

Optical Pick-up Name

ODX-1B

SPECIFICATIONS

MZ-E25

US and foreign patents licensed from Dolby
Laboratories Licensing Corporation.

Summary of Contents for MD Walkman MZ-E25

Page 1: ...del Canadian Model AEP Model UK Model E Model Australian Model Model Name Using Similar Mechanism NEW Mechanism Type MT MZE35 140 Optical Pick up Name ODX 1B SPECIFICATIONS MZ E25 US and foreign patents licensed from Dolby Laboratories Licensing Corporation ...

Page 2: ...ON AU COMPOSANT AYANT RAPPORT À LA SÉCURITÉ LES COMPOSANTS IDENTIFIÉS PAR UNE MARQUE SUR LES DIAGRAMMES SCHÉMATIQUES ET LA LISTE DES PIÈCES SONT CRITIQUES POUR LA SÉCURITÉ DE FONCTIONNEMENT NE REMPLACER CES COM POSANTS QUE PAR DES PIÈCES SONY DONT LES NUMÉROS SONT DONNÉS DANS CE MANUEL OU DANS LES SUPPLÉMENTS PUBLIÉS PAR SONY SAFETY RELATED COMPONENT WARNING COMPONENTS IDENTIFIED BY MARK OR DOTTED...

Page 3: ... 3 SECTION 1 GENERAL This section is extracted from instruction manual ...

Page 4: ... 4 ...

Page 5: ...is set can be disassembled in the order shown below SET UPPER LID ASS Y BOTTOM PANEL ASS Y MAIN BOARD ORNAMENTAL BELT ASS Y MECHANISM DECK SECTION MT MZE35 140 OPTICAL PICK UP ODX 1B SECTION ASS Y 2 precision screw M1 4 1 Moving the knob OPEN in the direction A open the upper LID ass y 2 precision screw M1 4 2 two precision screws M1 4 3 upper LID ass y A 2 bottom panel ass y 1 two precision screw...

Page 6: ... 4 two precision screws M1 4 1 battery case lid 3 two screws M1 4 2 3 two screws M1 4 2 2 switch unit CN801 8 MAIN board 6 flexible board CLV CN551 7 flexible board CN501 5 Open the MAIN board to the arrow direction ...

Page 7: ...ASS Y 1 boss 2 Expand ornamental belt ass y in the arrow direction to remove 1 boss 1 boss 1 boss 1 boss 1 boss 1 two screws MD 2 Set chassis ass y 3 mechanism deck section MT MZE35 140 MECHANISM DECK SECTION MT MZE35 140 ...

Page 8: ... 8 OPTICAL PICK UP ODX 1B SECTION ASS Y 3 optical pick up ODX 1B section ass y 1 precision screw 4 main shaft 2 flexible board ...

Page 9: ...LCD display is as shown below ROM version display All ON All OFF are repeated To hold the display for confirmation press the PLAY MODE key Configuration of TEST Mode The TEST mode configuration of this set is as follows SERVO Mode Enter the TEST mode press VOL key and key to select the SERVO mode When the second digit of mode number is not 0 and the first digit is 0 010 020 030 etc the optical pic...

Page 10: ...tion 011 Focus error offset 012 Tracking error offset 013 All servo ON 020 Laser Power Adjustment Mode Description 021 MO power A 022 Low reflection CD power E 023 Low reflection CD power 024 CD power 030 MO Adjustment Mode Description 031 MO EF balance MO traverse 032 MO EF gain 033 MO ABCD gain 034 MO focus gain 035 MO tracking gain 036 MO RF gain 037 MO ADIP gain 038 MO focus bias E 039 MO focu...

Page 11: ...r and frequency characteristic When VOL key is pressed in any mode the headphone volume changes every step Also When or key is pressed the headphone volume becomes maximum or minimum Once the volume level was changed fundamentally it contin ues but it returns to default value when the mode is changed from 114 to 115 or 118 to 119 pkey pkey pkey pkey pkey pkey pkey pkey pkey pkey key key key key ke...

Page 12: ...D EF balance 5 052 CD EF gain 6 051 CD EF balance 7 053 CD ABCD gain 8 054 CD focus gain 9 055 CD tracking gain 10 056 CD RF offset 11 057 CD RF gain 12 056 CD RF offset 13 058 CD focus bias 14 073 ADER check 15 074 Biaxial gain correction POWER Mode Enter the TEST mode and press VOL key key and VOL key in this order to select the POWER mode To select other modes refer to the TEST mode configurati...

Page 13: ...automatic adjustment result is OK the display is as follows 5 If automatic adjustment result is NG the display is as follows In case of NG select the SERVO mode and readjust NG item automatically Adjustment in SERVO Mode 1 Select each adjusting mode following the configuration of SERVO mode and the lower 2 digits of mode number and the adjusted value written to the EEPROM are displayed on the LCD ...

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Page 18: ... Play Mode 10 mV DIV 500 ns DIV 4 IC501 RF OUT Play Mode 200 mV DIV 500 ns DIV 5 IC601 ª LRCK Play Mode 1 V DIV 10 µs DIV 6 IC601 BCK Play Mode 1 V DIV 200 ns DIV 7 IC301 5 XT1 Play Mode 500 mV DIV 20 ns DIV Approx 280 mVp p 2 8 Vp p 355 ns 1 4 Vp p 16 9344 MHz Approx 43 mVp p Approx 23 mVp p Approx 760 mVp p 2 8 Vp p 23 µs ...

Page 19: ... 25 IC Block Diagrams IC301 AK4314 VF E2 IC302 BA3577FS E2 ...

Page 20: ... 26 IC601 µPD63730AGC 9EU IC901 MPC1830VMEL ...

Page 21: ... 27 IC551 MPC17A55FTA ...

Page 22: ... For several hundreds msec after the power supply rises L is input then it changes to H 25 OFTRK O Oftrack detection signal output to the D S P IC601 26 DFCT O Defect detection signal output to the D S P IC601 27 EXT IN I External timing count signal input terminal Not used open 28 T COUNT O Timing count signal output to the D S P IC601 29 ADIP O ADIP duplex signal 22 05 kHz 1 kHz output to the D ...

Page 23: ...rol signal output to the MPC1830VMEL IC901 H sleep on 20 MCK I Master clock input from the D A converter IC301 21 NC O Master clock output terminal Not used open 22 VDD Power supply terminal 3V digital system 23 SXIN I Sub system clock input terminal Not used fixed at L 24 SXOUT O Sub system clock output terminal Not used open 25 VSS Ground terminal digital system 26 UREG CHK CON O Un regulator vo...

Page 24: ...ignal output to the sled motor control IC803 67 SLD VCON O Sled servo voltage control signal output to the optical pick up driver IC551 68 SLD PWR UP O By pass transistor control signal output for the sled drive power supply 69 HP MUTE O Muting on off control signal output to the headphone amplifier IC302 H muting on 70 HP STBY O Standby signal output to the headphone amplifier IC302 L standby 71 ...

Page 25: ...5 1 475 405 11 SWITCH UNIT 6 X 4948 988 1 BELT ASSY S ORNAMENTAL SILVER 6 X 4949 106 1 BELT ASSY L ORNAMENTAL BLUE AEP UK E FR AUS 6 X 4949 107 1 BELT ASSY D ORNAMENTAL ORANGE AEP UK FR 7 4 963 883 21 SCREW M1 4 PRECISION PAN 8 X 4948 990 1 LID ASSY S UPPER SILVER 8 X 4949 108 1 LID ASSY L UPPER BLUE AEP UK E FR AUS 8 X 4949 109 1 LID ASSY D UPPER ORANGE AEP UK FR 9 4 963 883 01 SCREW M1 4 PRECISI...

Page 26: ...S ASSY 54 4 986 811 01 SPRING EJECT TENSION 55 4 995 532 01 COVER MD 56 X 4949 164 1 OPTICAL PICK UP ODX 1B SECTION ASSY 57 4 982 555 01 GEAR A 58 4 965 893 01 WASHER GEAR A STOPPER 59 4 982 561 11 SPRING RACK 60 3 349 825 82 SCREW PRECISION 61 4 993 251 01 SHAFT MAIN 62 1 666 784 11 FLEXIBLE BOARD CLV 63 4 963 883 61 SCREW M1 4 PRECISION PAN 64 4 963 883 21 SCREW M1 4 PRECISION PAN 65 3 309 595 1...

Page 27: ...V C501 1 162 964 11 CERAMIC CHIP 0 001uF 10 50V C502 1 164 156 11 CERAMIC CHIP 0 1uF 25V C503 1 162 919 11 CERAMIC CHIP 22PF 5 50V C504 1 162 919 11 CERAMIC CHIP 22PF 5 50V C505 1 162 917 11 CERAMIC CHIP 15PF 5 50V C506 1 164 227 11 CERAMIC CHIP 0 022uF 10 25V C507 1 162 962 11 CERAMIC CHIP 470PF 10 50V C508 1 107 826 11 CERAMIC CHIP 0 1uF 10 16V C509 1 117 720 11 CERAMIC CHIP 4 7uF 10V C510 1 164...

Page 28: ...410 21 INDUCTOR 10uH L601 1 414 754 11 INDUCTOR 10uH L901 1 412 031 11 INDUCTOR CHIP 47uH L902 1 411 804 21 INDUCTOR 10uH L903 1 414 410 21 INDUCTOR 10uH TRANSISTOR Q501 8 729 922 10 TRANSISTOR 2SA1577 QR Q551 8 729 904 87 TRANSISTOR 2SB1197K R Q552 8 729 929 11 TRANSISTOR DTC143ZE TL RESISTOR R101 1 216 837 11 METAL CHIP 22K 5 1 16W R102 1 216 831 11 METAL CHIP 6 8K 5 1 16W R105 1 216 829 11 META...

Page 29: ...ANEOUS 5 1 475 405 11 SWITCH UNIT 56 X 4949 164 1 OPTICAL PICK UP ODX 1B SECTION ASSY 62 1 666 784 11 FLEXIBLE BOARD CLV M901 1 698 991 11 MOTOR DC SPINDOL M902 1 698 764 21 MOTOR SLED MAIN ACCESSORIES PACKING MATERIALS 1 475 375 11 REMOTE CONTROL UNIT RM MZ35 1 528 299 41 BATTERY NI CD NC 6WM US CND 1 528 713 21 BATTERY CHARGER BC 7DC US CND 3 008 521 01 CASE BATTERY CHARGE US CND 3 861 359 11 MA...

Page 30: ... 36 MZ E25 Sony Corporation Personal A V Products Company 9 923 360 11 98C0590 1 Printed in Japan 1998 3 Published by Quarity Engineering Dept Shibaura ...

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