User's Manual

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SERVICE MANUAL

PORTABLE MINIDISC PLAYER

E Model

Tourist Model

SPECIFICATIONS

MZ-E800

US and foreign patents licensed from Dolby

Laboratories Licensing Corporation.

Photo: Silver type

Model Name Using Similar Mechanism NEW

MD Mechanism Type MT-MZE800-170

Optical Pick-up Mechanism Type LCX-2E

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

600 rpm to 2250 rpm

Error correction

Advanced Cross Interleave Reed Solomon Code

(ACIRC)

Sampling frequency

44.1 kHz

Coding

Adaptive TRansform Acoustic Coding (ATRAC)

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 limit

Outputs

Earphones: stereo mini-jack, maximum output

level 5 mW + 5 mW, load impedance 16 ohms

General

Power requirements

Nickel metal hydride rechargeable battery

One NH-14WM (supplied): 1.2V, 1,400 mAh

One LR6 (size AA) battery (not supplied)

Sony AC Power Adaptor* (supplied) connected

to the DC IN 3V jack

Battery operation time

Dimensions

Approx. 79.5 × 76.7 × 17.0 mm (w/h/d) (not

including projecting parts and controls)

Mass

Approx. 110g (the player only)

Supplied accessories

Earphones with a remote control (1)

Charging stand (1)

Nickel metal hydride rechargeable battery (1)

AC power adaptor (1)

Dry battery case (1)

Rechargeable battery carrying case (1)

Carrying pouch (1)

Design and specifications are subject to change

without notice.

Playback

Approx. 24 hours*

Approx. 37 hours

Approx. 64 hours

Battery life*

Batteries

Ni-MH

rechargeable battery

(NH-14WM)

One (size AA)

alkaline battery**

One (size AA)

alkaline battery**

and a Ni-MH

rechargeable

battery

(NH-14WM)

* With a fully charged battery

** When using a LR6 (SG) Sony “STAMINA”

alkaline dry battery (produced in Japan).

Note

The battery life may be shorter depending on

operating conditions, the surrounding

temperature, and the battery type.

About power sources

• For use in your house or car: Use the

supplied AC power adaptor or the

DCC-E230 car battery cord (not supplied)

to supply power to the player. Do not use

any other power supply.

Polarity of the plug

Ver 1.1 2001.02

9-927-939-12 Sony Corporation

2001B0500-1 Audio Entertainment Group

C 2001.2 General Engineering Dept.

Summary of content (44 pages)

PAGE 1
MZ-E800 SERVICE MANUAL E Model Tourist Model Ver 1.1 2001.02 Photo: Silver type US and foreign patents licensed from Dolby Laboratories Licensing Corporation. Model Name Using Similar Mechanism NEW MD Mechanism Type MT-MZE800-170 Optical Pick-up Mechanism Type LCX-2E SPECIFICATIONS System General Audio playing system MiniDisc digital audio system Laser diode properties Material: GaAlAs Wavelength: λ = 790 nm Emission duration: continuous Laser output: less than 44.
PAGE 2
TABLE OF CONTENTS Features 1. SERVICING NOTES ............................................... 3 2. GENERAL ................................................................... 6 3. DISASSEMBLY ......................................................... 7 4. TEST MODE .............................................................. 12 5. ELECTRICAL ADJUSTMENTS ......................... 17 6. DIAGRAMS 6-1. Block Diagram –MAIN Section (1/2) – ......................... 6-2.
PAGE 3
SECTION 1 SERVICING NOTES NOTES ON HANDLING THE OPTICAL PICK-UP BLOCK OR BASE UNIT The laser diode in the optical pick-up block may suffer electrostatic break-down because of the potential difference generated by the charged electrostatic load, etc. on clothing and the human body. During repair, pay attention to electrostatic break-down and also use the procedure in the printed matter which is included in the repair parts. The flexible board is easily damaged and should be handled with care.
PAGE 4
OPERATION OF MECHANISM • When a disc is loaded. Open the shutter 1. (Fig. 1) j When a disc is inserted, the Eject lever 2 moves in arrow a direction and the holder Assy 3 is unlocked. (Fig. 1 - Fig. 4) j The slider 4 slides in arrow b direction, and the holder Assy 3 moves down to the MAIN board side (downward). (Fig. 4) j When a disc lowers, the open/close detect switch (S809) turns on. (Fig. 1) j The Wake-up mode becomes active and the power circuit starts to operate.
PAGE 5
• When a disc is unloaded. Open the shutter 1. (Fig. 5) j The slider 2 slides in arrow a direction, and the holder Assy 3 moves up. (Fig. 6, Fig. 8) j When a disc rises, the open/close detect switch (S809) turns off. (Fig. 5) j The optical block 4 moves in arrow b direction (inward). (Fig. 5) j The disc 6 is pushed out by the Eject lever 5 and ejected from the holder Assy 3. (Fig. 7) j The Sleep mode becomes active and the power supply stops.
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SECTION 2 GENERAL This section is extracted from instruction manual.
PAGE 7
SECTION 3 DISASSEMBLY • This set can be disassemble in the order shown below. Set Panel Assy, Rear Front Panel Section Shutter Section Display Panel, Liquid Crystal (LCD901) MD Mechanism Deck (MT-MZE800-170) Main Board OP Service Assy (LCX-2E) “Motor, DC SSM17A/C-NP (Spindle) (M901)”, “Motor, DC (Sled) (M902)” Holder Assy Note: Follow the disassembly procedure in the numerical order given.
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FRONT PANEL SECTION Note on installation front panel section: When mounting, shift S806, S807, and S808 in the arrow B direction, then shift the knobs (AVLS), (BASS BOOST), and (HOLD) in the arrow C direction so as to adjust each knob and switch position. 1 Open the shutter block assy in the direction of arrow A. Note: Claws (4 pcs) are very fragile and require careful handling.
PAGE 9
DISPLAY PANEL, LIQUID CRYSTAL (LCD901) 2 shutter 4 display panel, liquid crystal (LCD901) 3 Open the two claws. 5 holder (LCD) Note: Do not open the claws (2 pcs) forcibly, as they are very fragile. 1 two MI screws (1.4) MD MECHANISM DECK (MT-MZE800-170) • Torsion spring (holder) mounting method. 1. Pull the torsion spring (holder) in arrow A direction. 2. Hook the part a in arrow B direction. A 5 Remove the torsion spring (holder) from the bracket (A).
PAGE 10
MAIN BOARD 2 bracket (B) block assy 1 screw (1.4), MI Note: In disconnecting the solder on the terminal board (minus) side, take care not to allow the soldering iron to touch the open/close detect switch (S809). 6 Remove the two solders of battery terminal (plus) assy and terminal board (minus). 4 boss 5 bracket (A) 7 case, battery open/close detect switch (S809) bracket (A) 1 three screws (1.4), MI b 8 MAIN board a A 3 three screws (1.
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“MOTOR, DC SSM17A/C-NP (SPINDLE) (M901)”, “MOTOR, DC (SLED) (M902)” 3 two screws (M1.4) 4 motor, DC (sled) (M902) 3 three screws (M1.4) 1 washer (0.8-2.5) 5 motor, DC SSM17A/C-NP (spindle) (M901) 2 gear (SA) HOLDER ASSY 3 holder assy 2 1 washer (0.8-2.
PAGE 12
SECTION 4 TEST MODE Outline Operation in Setting the Test Mode • This set provides the Overall adjustment mode that allows CD and MO discs to be automatically adjusted when in the test mode. In this overall adjustment mode, the disc is discriminate between CD and MO, and each adjustment is automatically executed in order. If a fault is found, the system displays its location. Also, the manual mode allows each individual adjustment to be automatically adjusted.
PAGE 13
[VOL +] key:100th place of item number Configuration of Test Mode [Test Mode $Display Check Mode%] Press the [VOL +] key [Manual Mode] Press the x key [Major item switching] increase. [VOL --] key:100th place of item number N key > [Servo Mode] [Audio Mode] [Power Mode] [OP Alignment Mode] Press the . or [VOL --] key [Overall Adjustment Mode] x key [VOL +] key:10th place of item number increase.
PAGE 14
5. The display changes a shown below each time the [DISPLAY] key is pressed. • Address & Adjusted Value Display Remote commander LCD display 011 C 6 8 S 0 1 address Self-Diagnosis Display Mode • This set uses the self-diagnosis system in which if an error occurs in 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.
PAGE 15
• Description of Indication History History code number Description 1st 0 The first error 1st 1 Displays “00” 1st 2 Displays “00” N 0 The last error N 1 Displays “00” N 2 Displays “00” N-1 0 One error before the last. N-1 1 Displays “00” N-1 2 Displays “00” N-2 0 Two errors before the last.
PAGE 16
Key Check Mode This set can check if the set and remote commander function normally. • Setting Method of Key Check Mode 1. Setting the test mode (see page 12). 2. Press the [DISPLAY] key for several seconds (about 3 seconds) activates the key check mode. (At the last two digits, AD value of remote commander key line is displayed in hexadecimal) 4. When all the keys on the set and on the remote commander are considered as OK, the following displays are shown for 4 seconds.
PAGE 17
SECTION 5 ELECTRICAL ADJUSTMENTS Outline 3. Press the X key once more. • In this set, automatic adjustment of CD and MO can be performed by entering the test mode (see page 12). However, before starting automatic adjustment, the memory clear and power supply/charging adjustments must be performed in the manual mode. • A key having no particular description in the text, indicates a remote commander key.
PAGE 18
• Adjustment method of Vc PWM Duty (L) (item number: 762) • Adjustment method of Vrem PWM Duty (H) (item number: 766) Remote commander LCD display Remote commander LCD display 762 Vc1PWM ** 766 VrhVch ** **: Adjusted value **: Adjusted value 1. Connect a digital voltmeter to the TP918 (VC) on the MAIN board, and adjust [VOL +] key (voltage up) or [VOL --] key (voltage down) so that the voltage becomes 2.305 +0.06 V. –0 1.
PAGE 19
• Adjustment method of normal charging current (item number 721) 1. Select the manual mode of the test mode, and set item number 721 (see page 13). • Adjustment Method of Overall CD and MO Adjustment Mode 1. Setting the test mode (see page 12). 2. Press the [VOL --] key activates the overall adjustment mode. Adjustment and Connection Location: – MAIN Board (Conductor side) – TP902 (BATT –) • Overall CD and MO adjustment items 1. Overall CD adjustment items Item No.
PAGE 20
MZ-E800 SECTION 6 DIAGRAMS BLOCK DIAGRAM – MAIN Section (1/2) – OPTICAL PICK-UP BLOCK (LCX-2E) DIGITAL SIGNAL PROCESSOR, DIGITAL SERVO SIGNAL PROCESSOR, EFM/ACIRC ENCODER/DECODER, SHOCK PROOF MEMORY CONTROLLER, ATRAC ENCODER/DECODER, D/A CONVERTER, 16M BIT D-RAM IC601 (1/2) RF AMP, FOCUS/TRACKING ERROR AMP IC501 4 VREF IY – + IX – + JX – + JX JY JX JY IX IY IX A – + – + A BC D B F C – + D – + MON 8 9 10 11 12 14 5 6 – + IY IX JX JY A B C D RF OUT RF,AMP, FOCUS ERROR, TRACKING ERROR P
PAGE 21
MZ-E800 6-2. BLOCK DIAGRAM – MAIN Section (2/2) – DIGITAL SIGNAL PROCESSOR, DIGITAL SERVO SIGNAL PROCESSOR, EFM/ACIRC ENCODER/DECODER, SHOCK PROOF MEMORY CONTROLLER, ATRAC ENCODER/DECODER, D/A CONVERTER, 16M BIT D-RAM IC601 (2/2) SLED VOLTAGE MONITOR IC552 5 6 3 2 7 139 SLCV 1 138 SLCU FOCUS/TRACKING COIL DRIVE, SPINDLE/SLED MOTOR DRIVE IC551 A OSCI 19 TRK+, TRKFCS+, FCS- TRK+ 30 X601 22.
PAGE 22
MZ-E800 6-3.
PAGE 23
6-4.
PAGE 24
MZ-E800 6-5. SCHEMATIC DIAGRAM – MAIN Board (1/4) – • See page 37 for Waveforms. • See page 38 for IC Block Diagram. (Page 31) (Page 33) (Page 35) (Page 36) Note on Schematic Diagram: • All capacitors are in µF unless otherwise noted. pF: µµF 50 WV or less are not indicated except for electrolytics and tantalums. • All resistors are in Ω and 1/4 W or less unless otherwise specified. • % : indicates tolerance.
PAGE 25
6-6. SCHEMATIC DIAGRAM – MAIN Board (2/4) – • See page 37 for Waveforms. MZ-E800 • See page 38 for IC Block Diagram. (Page 33) (Page 30) (Page 33) (Page 34) (Page 36) Note on Schematic Diagram: • All capacitors are in µF unless otherwise noted. pF: µµF 50 WV or less are not indicated except for electrolytics and tantalums. • All resistors are in Ω and 1/4 W or less unless otherwise specified. • % : indicates tolerance. f • : internal component. • C : panel designation. • A : B+ Line.
PAGE 26
MZ-E800 6-7. SCHEMATIC DIAGRAM – MAIN Board (3/4) – • See page 37 for Waveforms. (Page 32) (Page 32) (Page 32) Note on Schematic Diagram: • All capacitors are in µF unless otherwise noted. pF: µµF 50 WV or less are not indicated except for electrolytics and tantalums. • All resistors are in Ω and 1/4 W or less unless otherwise specified. f • : internal component. • C : panel designation. • A : B+ Line. • Power voltage is dc 1.5V and fed with regulated dc power supply from battery terminal.
PAGE 27
6-8. SCHEMATIC DIAGRAM – MAIN Board (4/4) – • See page 37 for Waveforms. MZ-E800 • See page 39 for IC Block Diagrams. (Page 29) (Page 31) (Page 34) (Page 32) (Page 30) Note on Schematic Diagram: • All capacitors are in µF unless otherwise noted. pF: µµF 50 WV or less are not indicated except for electrolytics and tantalums. • All resistors are in Ω and 1/4 W or less unless otherwise specified. • % : indicates tolerance. • C : panel designation. – 35 – • A : B+ Line.
PAGE 28
• IC Block Diagrams TA2131FL (EL) BEEP IN GND VREF IN IC301 9 IC801 rg (XTAL) 1 V/DIV, 20 ns/DIV 18 17 16 15 14 13 PW SW MT SW BST SW BEEP 2.3 Vp-p MT SW 5 IC504 1, 2, IC551 3 (PWM1), IC601 (SPVS), IC801 yj (SPDL PWM) (PLAYBACK mode) 2 V/DIV, 10 µs/DIV PW SW 1 IC501 1 (TE), IC601 oh (TE) (PLAYBACK mode) 200 mV/DIV, 50 ns/DIV BST SW • Waveforms 12 VREF V REF 11 LPF1 Approx. 30 mVp-p MT TC 19 VCC1 20 2.3 Vp-p ADD INB 21 10 BST NF1 BST1 INA 22 59.1 ns 11.
PAGE 29
VC VI 1 UI 2 PWM 3 GNDUV VO VMVW WO GNDW CPUI CPVI CPWI COM 47 46 45 44 43 42 41 40 39 38 37 VG VC 3PHASE CONTROL UO 48 VMU XC111256FTAEB WI IC551 PRE DRIVER + – 36 CPUO + – 35 CPVO + – 34 CPWO VM1 4 VG VC VC VC VC VG 33 VM3 RO1 5 PGND1 6 FO1 7 PRE DRIVER VM12 8 VG VC H-BRIDGE CONTROL H-BRIDGE CONTROL VC VC VC 32 RO3 31 PGND3 30 FO3 PRE DRIVER VC VG ROE 29 VM34 BIAS RO2 9 PGND2 10 FO2 11 PRE DRIVER H-BRIDGE CONTROL H-BRIDGE CONTROL PRE DRIVER 28
PAGE 30
6-9. IC PIN FUNCTION DESCRIPTION • IC501 SN761056CDBT (RF AMP, FOCUS/TRACKING ERROR AMP) Pin No. Pin Name I/O Description 1 TE O Tracking error signal output to the CXD2661GA (IC601) 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.
PAGE 31
• IC601 CXD2661GA-2 (DIGITAL SIGNAL PROCESSOR, DIGITAL SERVO SIGNAL PROCESSOR, EFM/ACIRC ENCODER/DECODER, SHOCK PROOF MEMORY CONTROLLER, ATRAC ENCODER/DECODER, D/A CONVERTER, 16M BIT D-RAM) Pin No. Pin Name I/O Description 1 VDCO — Power supply terminal (+1.
PAGE 32
Pin No. Pin Name I/O Description 47 to 52 A03, A04, A02, A05, A01, A06 O Address signal output to the external D-RAM Not used (open) 53 VDIO1 — Power supply terminal (+2.
PAGE 33
Pin No. Pin Name I/O 103 XLRF O Serial latch signal output terminal Not used (open) 104 CKRF O Serial clock signal output terminal Not used (open) 105 DTRF O Write data output terminal Not used (open) 106 APCREF O Control signal output to the reference voltage generator circuit for the laser automatic power control 107 LDDR O PWM signal output for the laser automatic power control Not used (open) 108 VDC4 — Power supply terminal (+1.
PAGE 34
• IC801 CXR701080-016GA (SYSTEM CONTROLLER) Pin No.
PAGE 35
Pin No. Pin Name I/O Description 50 XWAKE CLOSE I 51 XWAKE SET I Starting detect signal input (A/D input) from the set key Starting detect input (A/D input) from the open/close detect switch (S809) “L”: close 52 FOK I Focus OK signal input from the CXD2661GA (IC601) “H” is input when focus is on (“L”: NG) 53 SQSY I Subcode Q sync (SCOR) input from the CXD2661GA (IC601) “L” is input every 13.3 msec.
PAGE 36
Description Pin No.
PAGE 37
SECTION 7 EXPLODED VIEWS NOTE: • -XX and -X mean standardized parts, so they may have some difference from the original one. • Color Indication of Appearance Parts Example: KNOB, BALANCE (WHITE) . . . (RED) ↑ ↑ Parts Color Cabinet's Color (1) PANEL SECTION • Items marked “*” are not stocked since they are seldom required for routine service. Some delay should be anticipated when ordering these items. • The mechanical parts with no reference number in the exploded views are not supplied.
PAGE 38
Ver 1.1 2001.02 (2) MAIN SECTION 58 MT-MZE800-170 67 69 57 59 61 56 51 55 73 56 70 not supplied 54 53 60 52 68 64 64 62 71 72 63 56 66 56 56 Ref. No. Part No. Description 51 52 53 54 55 4-218-233-05 3-049-043-01 4-214-158-01 4-223-920-11 3-049-036-01 SCREW (1.4), MI SPRING, TORSION DANPER (-) TERMINAL BOARD (MINUS) CASE, BATTERY 56 57 58 59 60 4-218-233-13 3-220-020-01 3-049-051-01 X-3379-178-1 3-221-591-01 SCREW (1.
PAGE 39
(3) MD MECHANISM DECK SECTION (MT-MZE800-170) 105 104 M902 106 103 106 M901 107 102 101 117 108 109 116 103 106 110 115 114 110 113 112 111 102 The components identified by mark 0 or dotted line with mark 0 are critical for safety. Replace only with part number specified. Ref. No. Part No. Description 101 102 103 104 105 1-678-525-11 4-963-883-31 4-963-883-42 X-3379-188-1 X-3379-187-1 MOTOR FLEXIBLE BOARD SCREW (M1.4), PRECISION PAN SCREW (M1.
PAGE 40
SECTION 8 ELECTRICAL PARTS LIST MAIN 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. • RESISTORS All resistors are in ohms. METAL: Metal-film resistor. METAL OXIDE: Metal oxide-film resistor. F: nonflammable Ref. No. Part No.
PAGE 41
MAIN Ref. No. Part No. Description C853 C854 C901 C902 1-107-820-11 1-107-820-11 1-107-820-11 1-107-820-11 CERAMIC CHIP CERAMIC CHIP CERAMIC CHIP CERAMIC CHIP 0.1uF 0.1uF 0.1uF 0.1uF Remark C903 C904 C905 C906 C907 1-164-943-11 1-164-943-11 1-164-943-11 1-125-777-11 1-107-820-11 CERAMIC CHIP CERAMIC CHIP CERAMIC CHIP CERAMIC CHIP CERAMIC CHIP 0.01uF 0.01uF 0.01uF 0.1uF 0.
PAGE 42
MAIN Ref. No. Part No. Description Remark R517 R518 R519 R521 R551 1-208-691-11 1-218-985-11 1-218-977-11 1-242-967-11 1-218-965-11 METAL CHIP RES-CHIP RES-CHIP RES-CHIP RES-CHIP 2.2K 470K 100K 1 10K 0.
PAGE 43
Ref. No. Part No. Description Remark Ref. No. Part No.
PAGE 44
MZ-E800 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. 1.1 1.0 Date 2001.02 2000.07 Description of Revision Changing of parts supply classification. (Ref. No.