Sony MZ-E909 Service Manual
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Sony MZ-E909 Service Manual

Sony MZ-E909 Service Manual

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Download this manual See also: Operating Instructions
SERVICE MANUAL
Ver 1.2 2002.02
with SUPPLEMENT-1
US and foreign patents licensed from Dolby
Laboratories Licensing Corporation
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. 300 rpm to 2,700 rpm
Error correction
ACIRC (Advanced Cross Interleave Reed Solomon Code)
Sampling frequency
44.1 kHz
Coding
ATRAC (Adaptive TRansform Acoustic Coding)
ATRAC3: LP2
ATRAC3: LP4
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
Outputs
Headphones/earphones: stereo mini-jack,
maximum output level
5 mW + 5 mW (US model) load impedance
16 ohms,
3 mW + 3 mW (Other models)
load impedance 32 ohms
9-873-304-03
Sony Corporation
Personal Audio Company
2002B0200-1
Published by Sony Engineering Corporation
© 2002.02
MZ-E909
Model Name Using Similar Mechanism
MD Mechanism Type
Optical Pick-up Mechanism Type

SPECIFICATIONS

Power requirements
Nickel metal hydride rechargeable battery
One NH-14WM(A) (supplied): 1.2V, 1,350 mAh
One LR6 (size AA) battery (not supplied)
External power jack (for the rechargeable
battery): Power rating 3V DC
1)
Battery life
(Unit: Approx. hours) (JEITA
Batteries
Ni-MH
rechargeable
battery
NH-14WM(A)
3)
LR6 (SG)
Sony Alkaline
dry battery
4)
LR6 (SG)
and
4)
NH-14WM(A)
3)
1)
Measured with the power save function on (see
"Preserving battery power") is on.
2)
Measured in accordance with the JEITA (Japan
Electronics and Information Technology
Industries Association) standard (using a Sony
MDW-series Mini-disc).
3)
With a fully charged battery
4)
When using a Sony LR6 (SG) "STAMINA" alkaline dry
battery (produced in Japan).
Note
The battery operation may be shorter than that
specified, depending on the operating conditions,
the temperature of the location, and the type of
battery being used.
PORTABLE MINIDISC PLAYER
US Model
AEP Model
E Model
Tourist Model
NEW
MT-MZE909-173
LCX-4E
2)
)
SP Stereo
LP2
LP4
(normal)
Stereo
Stereo
38
45
53
60
70
83
100
122
145

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  • Page 1: Specifications

    1 monaural channel MDW-series Mini-disc). Frequency response 20 to 20,000 Hz ± 3 dB With a fully charged battery When using a Sony LR6 (SG) “STAMINA” alkaline dry Wow and Flutter battery (produced in Japan). Below measurable limits Outputs Note...

  • Page 2: Table Of Contents

    MARK !ON THE SCHEMATIC DIAGRAMS AND IN THE PARTS may also be added to ordinary solder. LIST ARE CRITICAL TO SAFE OPERATION. REPLACE THESE COMPONENTS WITH SONY PARTS WHOSE MAIN BOARD SUB ASSY PART NUMBERS APPEAR AS SHOWN IN THIS MANUAL OR IN •...

  • Page 3: Servicing Note

    MZ-E909 SECTION 1 SERVICING NOTE When repairing this device with the power on, if you remove the main board, this device stops working. In this case, you work without the device stopping by fastening the hook of the Open/Close detection switch (S809).

  • Page 4: General

    The battery charging stand The MZ-E909 supports the newly developed DSP TYPE-R for ATRAC. It thus allows you to enjoy TYPE-R high-quality sound from MDs recorded in SP stereo on TYPE-R- equipped MD decks, etc.

  • Page 5: Disassembly

    MZ-E909 SECTION 3 Ver 1.1 2001.11 DISASSEMBLY The equipment can be removed using the following procedure. Main board sub ASSY Bracket (R) ASSY Bracket (L) ASSY, “Lid ASSY Upper” Mechsnism deck SW board Optical pick-up ASSY Note : Follow the disassembly procedure in the numerical order given.

  • Page 6: Bracket (R) Assy

    MZ-E909 Ver 1.1 2001.11 3-3. BRACKET (R) ASSY 1 Screw, ES lock 1 Screw, ES lock 1 Screws, ES lock Bracket (R) ASSY 3 Screw, ES lock Bracket (L) ASSY 3 Screw, ES lock Panel, bottom 3-4. MAIN BOARD SUB ASSY, BRACKET (L) ASSY,...

  • Page 7: Optical Pick-Up Assy

    MZ-E909 3-5. OPTICAL PICK-UP ASSY Optical pick-up ASSY 1 Washer (LCX-4E) 2 Gear (SA) 3 Screw (MI 1.4) 4 Spring, thrust detent...

  • Page 8: Test Mode

    MZ-E909 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...
  • Page 9 MZ-E909 4-4. MANUAL MODE 4. During each test mode, the display is changed from one to another each time DISPLAY key is pressed. 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 •...
  • Page 10 Simplified contents History code Total recording time ( – – – – is displayed Error display code for MZ-E909) 3. Hereinafter, each time > N key is pressed, the reference information display changes as follows: 0XX 1 # # # #...
  • Page 11 MZ-E909 4-8. KEY CHECK MODE 4-7. SOUND SKIP CHECK RESULT DISPLAY MODE This set can display and check the error count occurring during 4-8-1. Outline of the function play. This mode is used to check to make sure that each of the keys •...

  • Page 12: Electrical Adjustments

    MZ-E909 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-...
  • Page 13 MZ-E909 5-4-5.Electrical offset adjustment method 5-4-3. Vl PWM Duty adjustment method Note: Doing adjustment by the state that a disc does not enter. 1. Set the Manual mode and set the item No. to 764. 1. Confirm the power voltage is 1.5V.
  • Page 14 MZ-E909 3. If NG in the overall CD adjustments, return to Reset NV and 5-5-5. Overall CD and MO adjustment items perform from the electrical offset adjustment again. 1. Overall offset adjustment Item No. Contents LCD display GRV setting • Sarvo OFF • Head UP...
  • Page 15 MZ-E909 Item No. Contents Tracking servo ON ABCD gain adjustment KF gain adjustment RF gain adjustment FCS gain adjustment TRK gain adjustment READ GRV adjustment 1 R GRV setting SLED move to outside Focus servo OFF TON offset adjustment TE gain adjustment...

  • Page 16: Diagrams

    MZ-E909 SECTION 6 Ver 1.1 2001.11 DIAGRAMS Note on Printed Wiring Boards: MAIN SECTION MAIN BOARD SUB ASSY • Audio board is supplied with main board sub ASSY. • X : parts extracted from the component side. • : Pattern from the side which enables seeing.

  • Page 17: Block Diagram

    MZ-E909 6-1. BLOCK DIAGRAMS MAIN BOARD AUDIO BOARD (1/2) RF AMP,FOCUS/TRACKING ERROR AMP IC501 CN501 HEADPHONE AMP IC301 VREF VREF RF OUT AOUT L J301 PEAK PEAK PEAK RF AMP, BOTM /BOTM BOTM AOUT R IN B OUT B Jx Jy Jx...

  • Page 18: Printed Wiring Boards - Main Section (1/2)

    MZ-E909 6-2. PRINTED WIRING BOARDS – MAIN SECTION (1/2) – Refer to page 16 for Notes. MAIN BOARD (SIDE A) DRY BATTERY SIZE "AA" R607 TAP601 R601 R804 (IEC DESIGNATION LR6) TP917 SHORT: TEST MODE X601 1PC, 1.5V R615 (VL)

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

    MZ-E909 6-3. PRINTED WIRING BOARDS – MAIN SECTION (2/2) – Refer to page 16 for Notes. MAIN BOARD (SIDE B) TP904 TP606 TP552 TP911 TP556 TP613 TP912 TP563 TP559 TP561 TP558 TP562 TP615 TP609 TP557 TP920 TP611 TP612 TP607 TP610...

  • Page 20: Schematic Diagram - Main Section (1/2)

    MZ-E909 6-4. SCHEMATIzC DIAGRAM – MAIN SECTION (1/2) – Refer to page 16 for Notes. Refer to page 16 for Waveforms. Refer to page 24 for IC Block Diagrams.

  • Page 21: Schematic Diagram - Main Section (2/2)

    MZ-E909 6-5. SCHEMATIzC DIAGRAM – MAIN SECTION (2/2) – Refer to page 16 for Notes. Refer to page 24 – 25 for IC Block Diagrams.

  • Page 22: Printed Wiring Boards - Audio Section

    MZ-E909 6-6. PRINTED WIRING BOARDS – AUDIO SECTION – Refer to page 16 for Notes. AUDIO BOARD (SIDE A) AUDIO BOARD (SIDE B) C304 C303 R303 R302 CN803 TP825 TP826 C301 C803 C804 IC301 TP305 C201 CN802 C101 TAP801 C102...

  • Page 23: Schematic Diagram - Audio Section

    MZ-E909 6-7. SCHEMATIzC DIAGRAM – AUDIO SECTION – Refer to page 16 for Notes. Refer to page 24 for IC Block Diagrams.
  • Page 24 MZ-E909 IC BLOCK DIAGRAMS IC501 SN761057DBT IC301 TA2131FL(EL) ADIP-IN S-MON A+B+C+D TWpp PK/BTM CSLO BEEP VREF REXT VREF075 V REF Wpp-LPF Aw+Dw LPF1 S-MONITOR TON Peak VREF TC MT TON Botm Malfa ADIP AwBPF BST NF1 TEMP DwBPF BST1 LPF2...
  • Page 25 MZ-E909 IC901 XPC18A32AFCR2 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 26: Exploded Views

    MZ-E909 SECTION 7 Ver 1.2 2002.02 EXPLODED VIEWS NOTE : • -XX, -X mean standardized parts, so they • The mechanical parts with no reference MAIN BOARD SUB ASSY may have some difference from the original number in the exploded views are not •...

  • Page 27: Mechanism Deck Section

    MZ-E909 7-2. MECHANISM DECK SECTION (MT-MZE909-173) 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.

  • Page 28: Electrical Parts List

    MZ-E909 Ver 1.1 2001.11 SECTION 8 AUDIO MAIN ELECTRICAL PARTS LIST NOTE : MAIN BOARD SUB ASSY • Due to standardization, replacements in the • SEMICONDUCTORS In each case, u : µ , for example : parts list may be different from the parts •...
  • Page 29 MZ-E909 MAIN Ref. No. Part No. Description Remark Ref. No. Part No. Description Remark C615 1-125-777-11 CERAMIC CHIP 0.1uF <JACK> C616 1-107-820-11 CERAMIC CHIP 0.1uF J301 1-793-288-62 JACK (i) C618 1-109-982-11 CERAMIC CHIP C699 1-164-943-11 CERAMIC CHIP 0.01uF <INDUCTOR> C802 1-107-820-11 CERAMIC CHIP 0.1uF...
  • Page 30 MZ-E909 MAIN Ref. No. Part No. Description Remark Ref. No. Part No. Description Remark R833 1-218-967-11 RES-CHIP 1/16W S808 1-572-922-11 SWITCH, SLIDE (HOLD .) R834 1-218-985-11 RES-CHIP 470K 1/16W S809 1-771-483-61 SWITCH, PUSH (1KEY) (OPEN/CLOSE) ***************************************************** R835 1-218-985-11 RES-CHIP 470K...
  • Page 31 MZ-E909 Ver 1.2 2002.02 Ref. No. Part No. Description Remark ACCESSORIES Dry Battery Case Headphnes/earphones *********** with a remote control 1-251-895-11 BATTERY CASE 1-476-395-12 REMOTE CONTROL UNIT (RM-MC11EL) 0 503 1-476-837-11 ADAPTOR, AC (AC-ES305S) (JEW) 0 503 1-476-838-11 ADAPTOR, AC (AC-ES305S) (HK)
  • Page 32 MZ-E909...
  • Page 33 MZ-E909 US Model AEP Model SERVICE MANUAL E Model Tourist Model 2002.02 SUPPLEMENT - 1 File this Supplement with the Service Manual. Subject : CHANGE OF MAIN BOARD (ECN-DAB01299)
  • Page 34 MZ-E909 CHANGE OF MAIN BOARD The main board have been changed. Block diagrams, printed wiring board and schematic diagram of new type, and changed parts list are described in this Supplement-1. Refer to original service manual (9-873-304-03) previously issued for the other information.
  • Page 35 MZ-E909 Last digit-21 BLOCK DIAGRAMS MAIN BOARD AUDIO BOARD (1/2) RF AMP,FOCUS/TRACKING ERROR AMP IC501 CN501 HEADPHONE AMP IC301 VREF VREF RF OUT AOUT L J301 PEAK PEAK PEAK RF AMP, BOTM /BOTM BOTM AOUT R IN B OUT B...
  • Page 36 MZ-E909 Last digit-21 PRINTED WIRING BOARDS – MAIN SECTION (1/2) – Refer to Service Manual page 16 for Notes. MAIN BOARD (SIDE A) DRY BATTERY SIZE "AA" R607 R601 R804 TAP601 (IEC DESIGNATION LR6) TP917 SHORT: TEST MODE X601 R615 1PC, 1.5V...
  • Page 37 MZ-E909 Last digit-21 PRINTED WIRING BOARDS – MAIN SECTION (2/2) – Refer to Service Manual page 16 for Notes. MAIN BOARD (SIDE B) TP904 TP606 TP552 TP911 TP556 TP613 TP912 TP563 TP559 TP561 TP558 TP562 TP615 TP609 TP557 TP920 TP611...
  • Page 38 MZ-E909 Last digit-21 SCHEMATIC DIAGRAM – MAIN SECTION (1/2) – Refer to Service Manual page 16 for Notes. Refer to Service Manual page 16 for Waveforms. Refer to Service Manual page 24 for IC Block Diagrams.
  • Page 39 MZ-E909 Last digit-21 SCHEMATIC DIAGRAM – MAIN SECTION (2/2) – Refer to Service Manual page 16 for Notes. Refer to Service Manual page 24 – 25 for IC Block Diagrams.
  • Page 40 MZ-E909 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 2001.09...

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