Sony Walkman MZ-E300 Service Manual
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Sony Walkman MZ-E300 Service Manual

Portable minidisc player
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See also: Operating Instructions
SERVICE MANUAL
Ver 1.2 2001.12
US and foreign patents licensed from Dolby
Laboratories Licensing Corporation
System
Audio playing system
MiniDisc digital audio system
Laser diode properties
Material: GaAlAs
Wavelength: λ = 790 nm
Emission duration: continuous
Laser output: less than 44.6 µW*
* This output is the value measured at a distance of 200 mm from
the objective lens surface on the optical pick-up block with 7 mm
aperture.
Revolutions
Approx. 700 rpm to 1,500 rpm
Error correction
ACIRC (Advanced Cross Interleave Reed Solomon Code)
Sampling frequency
44.1 kHz
Coding
ATRAC (Adaptive TRansform Acoustic Coding)
Modulation system
EFM (Eight to Fourteen Modulation)
Number of channels
2 stereo channels
1 monaural channel
Frequency response
20 to 20,000 Hz ± 3 dB
Wow and Flutter
Below measurable limits
Power requirements
One LR6 (size AA) battery (not supplied)
Sony Corporation
9-873-064-13
Personal Audio Company
2001L0200-1
Published by Sony Engineering Corporation
© 2001.12
MZ-E300
Model Name Using Similar Mechanism
MD Mechanism Type
Optical Pick-up Mechanism Type

SPECIFICATIONS

Battery operation time
Battery life
Battery
LR6 (SG) Sony Alkaline dry battery
1)
Measured in accordance with the EIAJ (Electronic Industries
Association of Japan) standard (using a Sony MDW-series Mini-disc).
2)
When using a Sony LR6 (SG) "STAMINA" alkaline dry battery
(produced in Japan).
Note
The effective battery life may be shorter than that indicated above,
depending on operating conditions, the surrounding temperature, and
the battery type.
Dimensions
Approx. 83.0 x 26.7 x 76.5 mm (w/h/d) (3
(not including projecting parts and controls)
Mass
Approx. 83.0 g (3.0 oz) (the player only)
Supplied accessories
Headphones/earphones (1)
Design and specifications are subject to change without notice.
PORTABLE MINIDISC PLAYER
US Model
Canadian Model
AEP Model
E Model
Chinese Model
NEW
MT-MZE300-176
LCX-4E
(EIAJ
Playback
2)
Approx. 33 hours
3
/
x 1
1
/
x 3
1
/
in.)
8
16
8
1)
)

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Summary of Contents for Sony Walkman MZ-E300

  • Page 1: Specifications

    Association of Japan) standard (using a Sony MDW-series Mini-disc). Laser output: less than 44.6 µW* When using a Sony LR6 (SG) “STAMINA” alkaline dry battery * This output is the value measured at a distance of 200 mm from (produced in Japan).

  • Page 2: Table Of Contents

    LES COMPOSANTS IDENTIFIÉS PAR UNE MARQUE 0 SUR LES DIAGRAMMES SCHÉMATIQUES ET LA LISTE DES PIÈCES SONT CRITIQUES POUR LA SÉCURITÉ DE FONCTIONNEMENT. NE REMPLACER CES COMPOSANTS QUE PAR DES PIÈCES SONY DONT LES NUMÉROS SONT DONNÉS DANS CE MANUEL OU DANS LES SUPPLÉMENTS PUBLIÉS PAR SONY.

  • Page 3: General

    MZ-E300 SECTION 2 GENERAL This section is extracted from instruction manual.

  • Page 4: Disassembly

    MZ-E300 SECTION 3 DISASSEMBLY • The equipment can be removed using the following procedure. Main board “Lid ASSY, Upper”, Mechanism deck Holder ASSY Optical pick-up ASSY Note : Follow the disassembly procedure in the numerical order given. 3-1. “LID ASSY, UPPER”, HOLDER ASSY...

  • Page 5: Main Board

    MZ-E300 3-3. MAIN BOARD On installation of main board, adjust the position of Note : both switch (S809) and knob (HOLD). 1 Screws, tapping (1.7) Main board Knob (HOLD) 2 Claw 3-4. OPTICAL PICK-UP ASSY Optical pick-up ASSY (LCX-4E) 1 Washer 2 Gear (SA) 3 Screw (MI 1.4)

  • Page 6: Test Mode

    MZ-E300 SECTION 4 TEST MODE 4-1. GENERAL Lead wires: 4 leads 4-2. SETTING THE TEST MODE • When entered in the TEST MODE, this set provides the Overall Adjustment mode which allows CD and MO discs to be auto- 4-2-1. How to set the TEST MODE matically adjusted.
  • Page 7 MZ-E300 Ver 1.2 2001.12 4-2-2. Operations when the TEST MODE is set 4-3. TEST MODE STRUCTURE When the TEST MODE is entered, the system switches to the dis- * Manual mode operation can only be performed via the remote play check mode within the TEST MODE. From this mode, the control unit.
  • Page 8 MZ-E300 3. Each test item is assigned with a three-digit item number. The 4-5. OVERALL ADJUSTMENT MODE 100th place is a major item, 10th place is a middle item, and unit 4-5-1. Outline of the function place is a minor item.
  • Page 9 MZ-E300 4-6-1. Electrical offset adjustment method 4-7. OVERALL ADJUSTMENT MODE Note: Doing adjustment by the state that a disc does not enter. 4-7-1. Overall adjustment mode structure 1. Confirm the power voltage is 1.5V. 2. Set to the test mode.
  • Page 10 MZ-E300 Ver 1.1 2001.03 5 Change the disc to MO overall adjustment disc (GA1 disc). 5 Rewriting of the adjustment value. Switch to manual mode No.114. 1.After CD overall adjustment, switch to manual mode No. 321 Press the pause key on the remotecontrol unit to set to the in the condition the disc is in.
  • Page 11 MZ-E300 6. If NG in the overall MO adjustments, return to Reset NV and perform the adjustment again. The NG item and “ng” alternately flash on the main unit LCD display. XXX: XXX: NG item No. YY: Adjustment Value 7. If OK through the overall MO adjustments, press x key to return to the TEST MODE and terminate the Overall Adjust- ment mode.
  • Page 12 MZ-E300 4-7-3. Overall CD and MO adjustment items 3. MO overall adjustment 1. Overall offset adjustment Item No. Description Item No. Description 100h GRV setting servo off 030h GRV setting servo off 112h ALFA offset adjustment Laser ON/OFF Electric offset differential...

  • Page 13: Diagrams

    MZ-E300 SECTION 5 DIAGRAMS 5-1. EXPLANATION OF IC TERMINALS • IC601 LC89642-8B-E (DIGITAL SIGNAL PROCESSOR, DIGITAL SERVO SIGNAL PROCESSOR, ATRAC ENCODER/DECODER, 8MBIT D-RAM, D/A CONVERTER) Pin No. Pin name Description Connected to Bias resistor for VTEC oscillating frequency ISET Connected to Bias resistor for VTEC current charge pump VCVDD —...
  • Page 14 MZ-E300 Pin No. Pin name Description MAD2 Address output to DRAM (NC) SLPWMR Sled PWM output MAD1 Address output to DRAM (NC) FOPWMF Focus PWM output MAD0 Address output to DRAM (NC) FOPWMR Focus PWM output TRPWMF Tracking PWM output...
  • Page 15 MZ-E300 Pin No. Pin name Description Data input/output to/from DRAM SHOCK SHOCK/RFNG output MCASB CAS signal output to DRAM (NC) VTEC system clock signal output MOEB OE signal output to DRAM (NC) VCVSS — Ground for VTEC * : I/O on the test mode.
  • Page 16 MZ-E300 • IC801 RU6615MF-0003 (SYSTEM CONTROL) Pin No. Pin name Description UNREG_MON UNREG voltage monitor input (A/D input) RF_VCMON Reference voltage (1.2V) for adjusting power supply voltage input (A/D input) RMC_KEY Remote commander with phones key input (A/D input) Key on the set itself input (A/D input) S801-807 (STOP, FF/PB, REW/PB, VOL+, VOL-,...
  • Page 17 MZ-E300 Pin No. Pin name Description CLV_W_CON Spindle servo (W) drive signal output to SC111257FCR2 (IC551) SLED_1R_CON Sled motor control signal output to SC111257FCR2 (IC551) SLED_1F_CON Sled motor control signal output to SC111257FCR2 (IC551) SLED_2R_CON Sled motor control signal output to SC111257FCR2 (IC551)

  • Page 18: Block Diagram

    MZ-E300 5-2. BLOCK DIAGRAMS DIGITAL SIGNAL PROCESSOR, MAIN BOARD DIGITAL SERVO SIGNAL PROCESSOR, RF AMP,FOCUS/TRACKING ERROR AMP ATRAC ENCODER/DECODER, 8M BIT D-RAM, D/A CONVERTER IC501 HEADPHONE AMP CN501 IC601 IC301 VREF VREF RF OUT OUT L EFMIN J301 PEAK PEAK...

  • Page 19: Printed Wiring Boards - Main Section (1/2)

    MZ-E300 5-3. PRINTED WIRING BOARDS – MAIN SECTION (1/2) – Refer to page 24 for Notes. DRY BATTERY SIZE "AA" Semiconductor (IEC DESIGNATION LR6) 1PC, 1.5V Location MAIN BOARD (SIDE B) Ref. No. Location D101 C608 C607 C951 D351 TP953...

  • Page 20: Printed Wiring Boards - Main Section (2/2)

    MZ-E300 5-4. PRINTED WIRING BOARDS – MAIN SECTION (2/2) – Refer to page 24 for Notes. Semiconductor Location MAIN BOARD (SIDE A) Ref. No. Location TP803 TP802 L905 D201 D901 TP804 TP801 C952 D902 L901 IC301 TP951 R106 TP805 TP806...

  • Page 21: Schematic Diagram - Main Section (1/3)

    MZ-E300 5-5. SCHEMATIC DIAGRAM – MAIN SECTION (1/3) – Refer to page 24 for Notes. Refer to page 26 – 28 for IC Block Diagrams. Refer to page 25 for Waveforms. IC B/D...

  • Page 22: Schematic Diagram - Main Section (2/3)

    MZ-E300 5-6. SCHEMATIC DIAGRAM – MAIN SECTION (2/3) – Refer to page 24 for Notes. Refer to page 26 – 28 for IC Block Diagrams. Refer to page 25 for Waveforms. IC B/D IC B/D...

  • Page 23: Schematic Diagram - Main Section (3/3)

    MZ-E300 5-7. SCHEMATIC DIAGRAM – MAIN SECTION (3/3) – Refer to page 24 for Notes. Refer to page 26 – 28 for IC Block Diagrams. Refer to page 25 for Waveforms. IC B/D...
  • Page 24 MZ-E300 Note on Printed Wiring Boards: MAIN SECTION • X : parts extracted from the component side. • : Pattern from the side which enables seeing. (The other layers' patterns are not indicated.) Caution: Pattern face side: Parts on the pattern face side seen from the (Side B) pattern face are indicated.
  • Page 25 MZ-E300 • Waveforms 1 IC501 1 (TE), IC601 w; (TE) 5 IC601 y; (XIN) 9 IC551 ta, ts, td, tf (COM, CPWI, (PLAY Mode) 400 mV/DIV, 20 ns/DIV CPVI, CPUI) 200 mV/DIV, 1 µs/DIV 400 mV/DIV, 5 µs/DIV 1.1 Vp-p Approx.

  • Page 26: Ic Block Diagrams

    MZ-E300 • IC BLOCK DIAGRAMS IC301 TA2131FL-EL BEEP V REF VREF LPF1 TC MT BST NF1 BST1 LPF2 BEEP BST2 BST NF2 OUTB BST OUT BEEP OUTA IC501 SN761057DBT ADIP-IN S-MON A+B+C+D TWpp PK/BTM CSLO REXT VREF075 Wpp-LPF Aw+Dw S-MONITOR...
  • Page 27 MZ-E300 IC551 SC111257FCR2 VC VG VC VG VC VG PRE DRIVER PRE DRIVER PGNDW H-BRIDGE H-BRIDGE VMVW CONTROL CONTROL PGNDUV GND2 CPW1 GND1 CPV1 PWM24 CPU1 H-BRIDGE H-BRIDGE CONTROL CONTROL VC VG CPWO PRE DRIVER PRE DRIVER 3 PHASE BIAS...
  • Page 28 MZ-E300 IC901 XPC18A32FCR2 42 41 SERIAL PASS POWER STEP-UP STEP-UP REGULATOR VA SWITCH 1 PRE DRIVEER PRE DRIVEER SERIAL PASS REGULATOR VD SERIAL PASS INM1 REGULATOR VIF DTC1 XRST (INT) XRST DTC2 CRST RSTREF BANDGAP INM2 VREF REFERENCE PWM1 PWM2...

  • Page 29: Exploded Views

    MZ-E300 SECTION 6 EXPLODED VIEWS NOTE : • -XX, -X mean standardized parts, so they • The mechanical parts with no reference The components identified by mark 0 may have some difference from the original number in the exploded views are not or dotted line with mark 0 are critical one.

  • Page 30: Mechanism Deck Section

    MZ-E300 6-2. MECHANISM DECK SECTION (MT-MZE300-176) M902 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 pièce...

  • Page 31: Electrical Parts List

    MZ-E300 SECTION 7 MAIN ELECTRICAL PARTS LIST NOTE : The components identified by mark 0 • Due to standardization, replacements in the • SEMICONDUCTORS In each case, u : µ , for example : or dotted line with mark 0 are critical parts list may be different from the parts uA..
  • Page 32 MZ-E300 Ver 1.2 2001.12 MAIN Ref. No. Part No. Description Remark Ref. No. Part No. Description Remark C903 1-104-752-11 TANTAL. CHIP 33uF 6.3V L903 1-414-398-11 INDUCTOR 10uH C904 1-119-749-11 TANTAL. CHIP 33uF L904 1-414-398-11 INDUCTOR 10uH L905 1-412-032-11 INDUCTOR CHIP 100uH...
  • Page 33 MZ-E300 MAIN Ref. No. Part No. Description Remark Ref. No. Part No. Description Remark R822 1-216-821-11 METAL CHIP 1/16W MISCELLANEOUS R824 1-216-845-11 METAL CHIP 100K 1/16W *************** R826 1-216-864-91 SHORT R827 1-216-857-11 METAL CHIP 1/16W 1-694-743-11 CONDUCTIVE BOARD, CONNECTION R830...
  • Page 34 MZ-E300 REVISION HISTORY Clicking the version allows you to jump to the revised page. Also, clicking the version at the upper right on the revised page allows you to jump to the next revised page. Ver. Date Description of Revision 2001.12...

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