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Operating Instructions
SERVICE MANUAL
Ver 1.0 1999. 11
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
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
Headphones: stereo mini-jack,
maximum output level 5 mW + 5 mW, load
impedance 16 ohm
MICROFILM
(Photo: Silver)
Model Name Using Similar Mechanism
MD Mechanism Type
Optical Pick-up Mechanism Type
SPECIFICATIONS
General
Power requirements
Nickel metal hydride rechargeable battery
NH-14WM (supplied)
One LR6 (size AA) battery (not supplied)
Sony AC Power Adaptor AC-E15L* (not
supplied) connected to the DC IN 1.5V jack
Battery operation time
Battery life*
Batteries
Ni-MH
rechargeable battery
(NH-14WM)
One LR6 (size AA)
alkaline battery
One LR6 (size AA)
alkaline battery
and a Ni-MH
rechargeable battery
(NH-14WM)
* The battery life may be shorter depending on
operating conditions and the temperature of the
location.
** With a fully charged battery
PORTABLE MINIDISC PLAYER
– 1 –
MZ-E90
E Model
Tourist Model
NEW
MT-MZE90-166
LCX-2E
Playback
Approx. 21 hours**
Approx. 31 hours
Approx. 56 hours**
– Continued on next page –
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Table of Contents
Related Manuals for Sony MZ-E90
Summary of Contents for Sony MZ-E90
- Page 1 MiniDisc digital audio system NH-14WM (supplied) Laser diode properties One LR6 (size AA) battery (not supplied) Material: GaAlAs Sony AC Power Adaptor AC-E15L* (not Wavelength: λ = 790 nm supplied) connected to the DC IN 1.5V jack Emission duration: continuous Battery operation time Laser output: less than 44.6 µW...
- Page 2 FROM ANY DEFECTIVE PRODUCT Carrying pouch (1) OR THE USE OF ANY PRODUCT. AC Plug Adaptor (1) (World model only) “MD WALKMAN” is a trademark of Sony Design and specifications are subject to change without notice. Corporation. CAUTION Use of controls or adjustments or performance of procedures other than those specified herein may result in hazardous radiation exposure.
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Page 3: Table Of Contents
TABLE OF CONTENTS 1. SERVICING NOTE 6. DIAGRAMS ............4 ..............18 6-1. IC Pin Descriptions ............. 18 6-1-1. IC801 CXR701080-006GA (System Control) .... 18 2. GENERAL ................. 5 6-2. Block Diagrams ..............21 Playing an MD right away! ........... 5 6-2-1. -
Page 4: Servicing Note
SECTION 1 SERVICING NOTE 1) When repairing this device with the power on, if you remove the main board or open the upper panel assy, this device stops working. In this case, you can work without the device stopping by fastening the hook of the OPEN/CLOSE switch (SW board S809) with tape. -
Page 5: General
SECTION 2 GENERAL This section is extracted from instruction manual. – 5 –... - Page 6 – 6 –...
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Page 7: Disassembly
SECTION 3 DISASSEMBLY Note : This set can be disassemble according to the following sequence. Lid Assy, Upper Holder Assy Mechanism Deck “Plate (L) Assy, Fulcrum ”, SW Board, “ Plate (R) Assy, Fulcrum” Main Board System Board Service Assy, OP Note : Follow the disassembly procedure in the numerical order given. -
Page 8: Mechanism Deck
3-3. MECHANISM DECK 1 screw, step 7 mechanism deck 6 CN551 5 connector claw 3-4. SYSTEM BOARD 2 SYSTEM board 1 CN601 – 8 –... -
Page 9: Plate (L) Assy, Fulcrum", "Plate (R) Assy, Fulcrum
3-5. “PLATE (L) ASSY, FULCRUM”, “PLATE (R) ASSY, FULCRUM” Note: When installing, fit the knob (OPEN). 1 screw(1.7),MI 5 M 1.4 4 M 1.4 3 plate (L) assy, fulcrum 2 screw(1.7),MI 6 plate (R) assy, fulcrum 7 knob (open) 3-6. SW BOARD, MAIN BOARD Note: When installing, fit the knobs (HOLD, MB, AVLS). -
Page 10: Service Assy, Op
3-7. SERVICE ASSY, OP 4 M 1.4 3 M 1.4 5 service assy, OP 1 washer 2 gear (SA) – 10 –... -
Page 11: Test Mode
SECTION 4 TEST MODE 4-1. GENERAL Remote control LCD • When entered in the TEST MODE, this set provides the Overall Adjustment mode which allows CD and MO discs to be auto- matically adjusted. In the Overall Adjustment mode , the system discriminates between CD and MO discs, performs adjustments All on in sequence automatically, and displays the faulty location if any... -
Page 12: Manual Mode
4-4. MANUAL MODE 4-4-1. Outline of the function Address Value & Adjustment Value The Manual mode is designed to perform adjustments and LCD display operational checks on the set’s operation according to each 011 C68S01 individual function. Usually, no adjustments are made in this mode. Jitter Value &... -
Page 13: Self Diagnostic Mode
Displays 00. The second error from the last one. Displays 00. 888 1st0XX 888 N-10XX Total recording time (0000 is displayed 888 1st100 888 N-1100 for MZ-E90.) 888 1st200 888 N-1200 888 N 888 N-20XX 888 N 888 N-2100 888 N... -
Page 14: Key Check Mode
4-7. KEY CHECK MODE 4-7-1. Outline of the function This mode is used to check to make sure that each of the keys (including the slide switch) on the set operates normally. 4-7-2. Setting the Key Check mode 1. Set the TEST MODE. Press and hold down DISPLAY key (for more than 3 sec) to set the Key Check mode. -
Page 15: Electrical Adjustments
SECTION 5 ELECTRICAL ADJUSTMENTS 5-1. GENERAL 5-4. MANUAL POWER ADJUSTMENTS In this set, CD and MO discs can be automatically adjusted by set- 5-4-1. Adjustment sequence ting the Overall Adjustment mode within the TEST MODE, The adjustments should be always performed in the following se- Before performing these automatic adjustments, it is necessary to quence: clear the memory and adjust the power in the Manual mode. -
Page 16: Vc Pwm Duty (H) Adjustment Method
5-4-4. Vc PWM Duty (H) adjustment method 5-5. OVERALL ADJUSTMENT MODE 1. Set the Manual mode and set the item No. to 765. (See page 12) 5-5-1. Overall adjustment mode structure LCD display TEST MODE 765 VchPWM (Display Check Mode) 2. -
Page 17: Overall Cd And Mo Adjustment Items
6. If NG in the overall MO adjustments, return to Reset NV and perform the adjustment again. LCD display XXX NG XXX: NG item No. 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 18: Diagrams
SECTION 6 DIAGRAMS 6-1. IC PIN DESCRIPTION 6-1-1. IC801 CXR701080-006GA (SYSTEM CONTROL) Pin No. Pin name Pin Description — Not used. (Open) OFTRK OFTRK DLY signal input 3 – 5 — Not used. (Open) SENSE DSP SENS monitor signal input —... - Page 19 Pin No. Pin name Pin Description SERON Series power control signal output — Not used. (Open) X TEST Test mode detect signal input SET CODE0 Destination pin (Fix to ground.) SET CODE1 Destination pin (Fix to ground.) SET CODE2 Destination pin (Open) REG CTL PWM Synchronization external clock signal output VRM PWM...
- Page 20 Pin No. Pin name Pin Description XRST MTR DRV Reset signal output. (L: Reset) 113 • 114 — Not used. (Open) XAVLS AVLS SW detect signal input (L: ON) — Not used. (Open) MUTE Analog mute signal output (H: MUTE) —...
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Page 21: Block Diagrams
MZ-E90 6-2. BLOCK DIAGRAMS 6-2-1. MD BLOCK DIAGRAM MAIN BOARD (1/3 ) MINIDISC OPTICAL PICK-UP BLOCK (LCX-2E) RF AMP,FOCUS/TRACKING ERROR AMP IC501 CN501 VREF DIGITAL SIGNAL PROCESSOR, VREF DIGITAL SERVO SIGNAL PROCESSOR, EFM/ACIRC ENCODER/DECODER, SHOCK PROOF MEMORY CONTROLLER, 16M BIT D-RAM... -
Page 22: Servo Block Diagram
MZ-E90 6-2-2. SERVO BLOCK DIAGRAM MAIN BOARD (2/3) DIGITAL SIGNAL PROCESSOR, DIGITAL SERVO SIGNAL PROCESSOR, EFM/ACIRC ENCODER/DECODER, SHOCK PROOF MEMORY CONTROLLER, 16M BIT D-RAM VREG IC601(2/2) SLED VDC0 VOLTAGE MONITOR IC552 VDC1 VDC2 VDC3 SLCV VDC4 VDC5 DAVDD2 SLCU DAVDD3... -
Page 23: System Control Block Diagram
MZ-E90 6-2-3. SYSTEM CONTROL BLOCK DIAGRAM SYSTEM BOARD MAIN BOARD (3/3 ) HEADPHONE AMP IC301 CN803 CN803 CN801 (1/4) (3/4) (3/4) L OUT L IN R OUT J301 SECTION R IN (Page 22) REMOTE IN B OUT B BEEP OUT A... -
Page 24: Printed Wiring Boards And Schematic Diagrams
MZ-E90 6-3. PRINTED WIRING BOARDS AND SCHEMATIC DIAGRAMS 6-3-1. PRINTED WIRING BOARD — MAIN BOARD — MAIN BOARD (SIDE A ) TP612 TP907 TP906 TP512 TP524 TP526 TP611 TP523 TP301 TP532 TP525 TP506 TP527 TP507 TP520 TP530 TP508 TP529 TP606... - Page 25 MZ-E90 (BATTERY CASE) DRY BATTERY • Semiconductor SIZE "AA" Location (IEC DESIGNATION R6) DC IN 1.5V 1PC, 1.5V Ref. No. Location D101 D201 MAIN BOARD (SIDE B ) D351 D601 L901 TP952 D855 R604 C608 D901 D-12 C907 L601 C609...
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Page 26: Ic Block Diagrams
MZ-E90 6-3-2. SCHEMATIC DIAGRAM — MAIN BOARD (1/4) — • Refer to page 46 for IC Block Diagrams. (Page 33) • Waveforms (MODE:PLAY) Approx. 12mVp-p IC501 (TE) (TP523) (Page 37) Approx. 130mVp-p IC501 890qa (Page 36) Approx. Note: 1.2Vp-p • All capacitors are in µF unless otherwise noted. pF: µµF •... -
Page 27: Schematic Diagram - Main Board (1/4)
MZ-E90 6-3-3. SCHEMATIC DIAGRAM — MAIN BOARD (2/4) — (Page 45) (Page 32) • Waveforms (MODE:PLAY) 1.8Vp-p 22.5792MHz IC601 (OSCO) (Page 36) Note: (Page 37, 38) • A : B+ Line. • All capacitors are in µF unless otherwise noted. pF: µµF •... -
Page 28: Schematic Diagram - Main Board (2/4)
MZ-E90 6-3-4. SCHEMATIC DIAGRAM — MAIN BOARD (3/4) — • Refer to page 48 for IC Block Diagrams. (Page 32) (Page 33) (Page 37) Note: • A : B+ Line. • All capacitors are in µF unless otherwise noted. pF: µµF •... -
Page 29: Schematic Diagram - Main Board (3/4)
MZ-E90 6-3-5. SCHEMATIC DIAGRAM — MAIN BOARD (4/4) — • Refer to page 47 for IC Block Diagrams. (Page 33) (Page 33) (Page 32) (Page 36) (Page 45) (Page 36) Note: • A : B+ Line. • All capacitors are in µF unless otherwise noted. pF: µµF •... -
Page 30: Printed Wiring Board - System Board
MZ-E90 6-3-6. PRINTED WIRING BOARD — SYSTEM BOARD — SYSTEM BOARD (SIDE A ) • Waveforms (MODE:PLAY) TP204 1.2Vp-p TP826 16.9344MHz IC801 (XTAL) TP817 TP104 TP305 TP825 TP821 TP819 TP824 TP816 TP820 TP304 TP303 TP823 TP818 TP815 TP822 • Semiconductor... -
Page 31: Schematic Diagram - System Board
MZ-E90 6-3-7. SCHEMATIC DIAGRAM — SYSTEM BOARD — • Refer to page 46 for IC Block Diagrams. • Refer to page 40 for Waveform. (Page 38) Note: • All capacitors are in µF unless otherwise noted. pF: µµF 50 WV or less are not indicated except for electrolytics and tantalums. -
Page 32: Printed Wiring Board - Sw Board
MZ-E90 6-3-8. PRINTED WIRING BOARD — SW BOARD — SW BOARD (SIDE A ) R814 S804 S805 S801 S803 S802 D801 1-675-337- S802 S804 S805 S801 S803 VOLUME - VOLUME + > N SWITCH FLEXIBLE MAIN BOARD BOARD 1-675-336- 11... -
Page 33: Schematic Diagram - Sw Board
MZ-E90 6-3-9. SCHEMATIC DIAGRAM — SW BOARD — (Page 34) Note: • 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 W or less unless otherwise specified. -
Page 34: Ic Block Diagram
6-4. IC BLOCK DIAGRAM IC301 TA2131FL IC504, 505 TC7W66FK CONT BEEP V REF VREF CONT LPF1 TC MT VCC1 VINR BST NF1 BST1 VINL LPF2 BEEP BST2 BST NF2 OUTB BST OUT BEEP OUTA IC501 SN761056DBT ADIP S-MON A+B+C+D TWpp PK/BTM CSLO REXT... - Page 35 IC551 XC111256FTA IC552 TLC372CPWR 35 34 30 29 26 25 PRE DRIVER PRE DRIVER V– HI-BRIDGE HI-BRIDGE CONTROL CONTROL CPWI CPVI CPUI PGNDW BIAS VMVW HI-BRIDGE HI-BRIDGE PGNDUV CONTROL CONTROL PRE DRIVER PRE DRIVER PRE DRIVER 3 PHASE CONTROL 9 10 11 12 IC802 AK6480BH-E2 VREF GENERATOR...
- Page 36 IC901 MPC18A31FTA 36 35 33 32 FFCLR SYSTEM CONTROL OSC2 STEP-UP STEP-UP PRE DRIVER PRE DRIVER XRST VSTL FFCLR VRMC XRST CRST INM1 RSTREF INM2 STEP-UP DC/DC CONVERTER SWVG VREG VREF BANDGAP REFERENCE PWMVC SERON CHGMON INM4 DCIN CHGB DCIN DCIN CHGSW 11 12...
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Page 37: Exploded Views
SECTION 7 EXPLODED VIEWS NOTE: • The mechanical parts with no reference • -XX and -X mean standardized parts, so • Accessories and packing materials are number in the exploded views are not supplied. they may have some difference from the given in the last of this parts list. -
Page 38: Mechanism Deck Section
7-2. MECHANISM DECK SECTION (MT-MZE90-166) M902 M901 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 Remark Ref. No. Part No. Description Remark 1-675-668-11 MOTOR FLEXIBLE BOARD 4-222-208-01 GEAR (SB) -
Page 39: Electrical Parts List
SECTION 8 MAIN ELECTRICAL PARTS LIST NOTE: • Due to standardization, replacements in • Items marked “*” are not stocked since The components identified by the parts list may be different from the they are seldom required for routine service. mark 0 or dotted line with mark parts specified in the diagrams or the Some delay should be anticipated... - Page 40 MAIN Ref. No. Part No. Description Remark Ref. No. Part No. Description Remark D351 8-719-017-58 DIODE MA8068 R518 1-218-985-11 RES,CHIP 470K 1/16W D601 8-719-421-27 DIODE MA728 R519 1-218-977-11 RES,CHIP 100K 1/16W D855 8-719-066-17 DIODE FTZ6.8E-T148 R521 1-218-446-11 METAL CHIP 1/16W D901 8-719-066-16 DIODE RB491D-T146 R551...
- Page 41 IC802 8-759-566-18 IC AK6480BH-E2 CN804 1-793-606-21 CONNECTOR, FFC/FPC (ZIF) 9P < TRANSISTOR > < DIODE > Q301 8-729-037-52 TRANSISTOR 2SD2216J-QR(TX).SO D801 8-719-061-82 LED TLSU1002(TPX1.SONY) (OPR) < RESISTOR > < RESISTOR > R101 1-218-967-11 RES,CHIP 1/16W R102 1-218-961-11 RES,CHIP 4.7K 1/16W...
- Page 42 MZ-E90 Ref. No. Part No. Description Remark MISCELLANEOUS *************** 1-675-336-11 SWITCH FLEXIBLE BOARD 1-675-668-11 MOTOR FLEXIBLE BOARD M901 8-835-666-01 MOTOR, DC SSM-01C14A/C-NP (SPINDLE) M902 1-763-399-11 MOTOR, DC (SLED) (WITH PULLEY GEAR) ************************************************************* ACCESSORIES & PACKING MATERIALS ******************************** 1-418-493-51 REMOTE CONTROL UNIT (RM-MZ25) (SILVER)…(SILVER)