sony_MZ-E909_service_manual 维修电路图.pdf

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1、MZ-E909 SERVICE MANUAL PORTABLE MINIDISC PLAYER SPECIFICATIONS US Model AEP Model E Model Tourist Model Model Name Using Similar MechanismNEW MD Mechanism TypeMT-MZE909-173 Optical Pick-up Mechanism TypeLCX-4E US and foreign patents licensed from Dolby Laboratories Licensing Corporation Ver 1.2 2002

2、.02 with SUPPLEMENT-1 Audio playing system MiniDisc digital audio system Laser diode properties Material: GaAlAs Wavelength: = 790 nm Emission duration: continuous Laser output: less than 44.6 W* * This output is the value measured at a distance of 200 mm from the objective lens surface on the optic

3、al 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

4、) 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 o

5、hms 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 Battery life 1) (Unit: Approx. hours) (JEITA 2) ) BatteriesSP StereoLP2LP4 (norm

6、al) StereoStereo Ni-MH 38 45 53 rechargeable battery NH-14WM(A)3) LR6 (SG) 60 70 83 Sony Alkaline dry battery 4) LR6 (SG)4) and 100 122 145 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

7、 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 co

8、nditions, the temperature of the location, and the type of battery being used. 9-873-304-03 2002B0200-1 2002.02 Sony Corporation Personal Audio Company Published by Sony Engineering Corporation 收音机爱好者资料库 Ra d i o Fa n s .CN 2 MZ-E909 Specifications . 1 1.SERVICING NOTE. 3 2.GENERAL Location and Func

9、tion of Controls . 4 3.DISASSEMBLY 3-1. “Lid ASSY, Upper”. 5 3-2. Mechanism Deck . 5 3-3. Bracket (R) ASSY . 6 3-4. Main Board Sub ASSY, Bracket (L) ASSY, SW Board. 6 3-5. Optical Pick-up ASSY . 7 4.TEST MODE. 8 5.ELECTRICAL ADJUSTMENTS. 12 6.DIAGRAMS 6-1. Block Diagram. 17 6-2. Printed Wiring Board

10、s Main Section (1/2) . 18 6-3. Printed Wiring Boards Main Section (2/2) . 19 6-4. Schematic Diagram Main Section (1/2) . 20 6-5. Schematic Diagram Main Section (2/2) . 21 6-6. Printed Wiring Boards Audio Section . 22 6-7. Schematic Diagram Audio Section . 23 7.EXPLODED VIEWS 7-1. Main Section. 26 7-

11、2. Mechanism Deck Section . 27 8.ELECTRICAL PARTS LIST. 28 SAFETY-RELATED COMPONENT WARNING! COMPONENTS IDENTIFIED BY MARK ! OR DOTTED LINE WITH MARK !ON THE SCHEMATIC DIAGRAMS AND IN THE PARTS LIST ARE CRITICAL TO SAFE OPERATION. REPLACE THESE COMPONENTS WITH SONY PARTS WHOSE PART NUMBERS APPEAR AS

12、 SHOWN IN THIS MANUAL OR IN SUPPLEMENTS PUBLISHED BY SONY. Flexible Circuit Board Repairing Keep the temperature of the soldering iron around 270C during repairing. Do not touch the soldering iron on the same conductor of the circuit board (within 3 times). Be careful not to apply force on the condu

13、ctor when soldering or unsoldering. Notes on chip component replacement Never reuse a disconnected chip component. Notice that the minus side of a tantalum capacitor may be dam- aged by heat. TABLE OF CONTENTS * Replacement of CXD2671B-206GA (IC601) used in this set requires a special tool. CAUTION

14、Use of controls or adjustments or performance of procedures other than those specified herein may result in hazardous radiation exposure. Dimensions Approx. 71.1 x 77.6 x 12.5 mm (w/h/d) (2 7 / 8 x 3 1 /8 x 1 /2 in.) (not including projecting parts and controls) Mass Approx. 49 g (1.8 oz) (the playe

15、r only) Supplied accessories Headphones/earphones with a remote control (1) Battery charging stand (1) AC power adaptor (for the supplied battery charging stand) Rechargeable battery (1) Rechargeable battery carrying case (1) Dry battery case (1) Carrying pouch (1) AC plug adaptor (1) (world model o

16、nly) US and foreign patents licensed from Dolby Laboratories. Design and specifications are subject to change without notice. r UNLEADED SOLDER Boards requiring use of unleaded solder are printed with the lead-free mark (LF) indicating the solder contains no lead. (Caution: Some printed circuit boar

17、ds may not come printed with the lead free mark due to their particular size.) : LEAD FREE MARK Unleaded solder has the following characteristics. Unleaded solder melts at a temperature about 40C higher than ordinary solder. Ordinary soldering irons can be used but the iron tip has to be applied to

18、the solder joint for a slightly longer time. Soldering irons using a temperature regulator should be set to about 350C. Caution: The printed pattern (copper foil) may peel away if the heated tip is applied for too long, so be careful! Strong viscosity Unleaded solder is more viscous (sticky, less pr

19、one to flow) than ordinary solder so use caution not to let solder bridges occur such as on IC pins, etc. Usable with ordinary solder It is best to use only unleaded solder but unleaded solder may also be added to ordinary solder. Ver 1.1 2001.11 MAIN BOARD SUB ASSY Audio board is supplied with main

20、 board sub ASSY. Audio board cant be moved away from main board. Give a damage when take it off forcibly. The part that audio board overlap with main board cant be re- paired. 收音机爱好者资料库 Ra d i o Fa n s .CN 3 MZ-E909 SECTION 1 SERVICING NOTE When repairing this device with the power on, if you remove

21、 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). Open/Ciose detection switch (S809) 收音机爱好者资料库 Ra d i o Fa n s .CN 4 MZ-E909 SECTION 2 GENERAL This section is extracted from instruction manu

22、al. To Find the beginning of the current track or the previous track3) Find the beginning of the next track4) Go backwards while playing Go forward while playing Pause Remove the MD 2)You can turn off the beep sound. For more details, see “Turning off the beep sound.” 3)If you turn the control towar

23、ds . on the remote control (or press . on the player) during the first track of the disc, the player goes to the beginning of the last track on the disc. 4)If you turn the control towards N on the remote control (or press N on the player) during the last track of the disc, the player goes to the beg

24、inning of the first track on the disc. 5)If you open the lid, the playback will begin from the beginning of the first track (except when disc information is stored to the personal disc memory or when group mode is on). z The MZ-E909 supports the newly developed DSP TYPE-R for ATRAC. It thus allows y

25、ou to enjoy TYPE-R high-quality sound from MDs recorded in SP stereo on TYPE-R- equipped MD decks, etc. Note When removing the disc, make sure to press x first, and then slide OPEN. Viewing the display window of the remote control Track number Track name6) or elapsed time of the track 6)Appears only

26、 with MDs that have been electronically labeled. z The player can play the track recorded by 2 or 4 long playing mode (LP2 or LP4). Normal stereo playback, LP2 stereo playback, LP4 stereo playback or monaural playback is automatically selected to match the audio source. The display on the remote con

27、trol will turn off shortly after you press x. Do this (Beeps2) in the headphones) Turn the control towards . on the remote control once (three short beeps). (Or press . on the player once.) Turn the control towards . on the remote control repeatedly (continuous three short beeps). (Or press . on the

28、 player repeatedly.) Turn the control towards N on the remote control (two short beeps). Press N on the player once. Turn and hold the control towards . on the remote control. Hold down . on the player. Turn and hold the control towards N on the remote control. Hold down N on the player. Press X on

29、the remote control (continuous short beeps). Press X on the remote control again to resume play. Press x, and then slide OPEN.5) Playing an MD Insert an MD. 1 2 3 Play an MD. 2 x X 1N VOL+ VOL . N . VOLUME +/ GROUP x 1 Turn the control towards N on the remote control (or press N on the player) to pl

30、ay the disc. A short beep sounds in the headphones/earphones when using the remote control. The LED flashes and then lights up. 2 Pull and turn VOL +/ on the remote control (or press VOLUME +/ on the player) to adjust the volume. The volume indicator appears in the display, allowing you to check the

31、 volume level. After you adjust the volume, push back the control. To stop play, press x. Playback starts from the point you last stopped playing. To start playback from the beginning of the disc, turn and hold the control towards N on the remote control (or hold down N on the player) for 2 seconds

32、or more. 1) The LED indicates the current operating status by the lighting up in the following colors. When the battery power is exhausted, the LED starts flashing. For more details, see “When to replace or recharge the battery.” LED colorOperating status RedNormal play (The LED lights up continuous

33、ly) GreenGroup mode* (The LED lights up continuously) OrangeGroup skip mode* (The LED lights for about 5 seconds) *For more details, see “Using the group function.” 1 2 Insert an MD with the label side facing up, pushing the MD to the direction of the arrow in the illustration. 1 Slide OPEN to open

34、the lid.2 Insert an MD.3 Close the lid. 3 Color Info-LED1) The Player 1 9 7 F E C D 2 8 1 ./x/N button 2 3 Color Info-LED 3 GROUP button 4 HOLD (Locking the control) switch 5 i (earphones) jack 6 OPEN switch 7 Terminals for charging stand/ dry battery case (at the bottom) 8 VOL +/ button 9 Battery c

35、ompartment The earphones with a remote control J + H I K D A L F B E G C 1 Headphones/earphones 2 Stereo mini plug 3 X (pause) button 4 SOUND button 5 RPT/ENT (Repeat/Enter) button 6 PLAYMODE button 7 DISPLAY button 8 x (stop) button* 9 Control (./N) q; Control VOL +/ Pull and turn to adjust the vol

36、ume. qa HOLD (Locking the control) switch qs Display window * The stop button also operates as the enter button, depending on the function. The display window of the remote control F G ABCDE 1 Track number display 2 Charactor information display 3 Disc indication 4 Alarm indication 5 Play mode indic

37、ation 6 Battery level indication 7 SOUND indication The battery charging stand B A C 1 Terminals for charging 2 CHARGE lamp 3 DC IN (3V jack) (at the rear) 5 MZ-E909 SECTION 3 DISASSEMBLY Note : Follow the disassembly procedure in the numerical order given. 3-1. “LID ASSY, UPPER” 3-2. MECHANISM DECK

38、 r The equipment can be removed using the following procedure. 2 1 Screws , ES Lock 1 Screws , ES lock Bracket (L) ASSY Lid ASSY, upper 4 7 5 2 9 Motor flexible board (CN551) 6 Claw 8 OP flexible board (CN501) 1 Move claw away from bracket (stop) ASSY 3 Screw (LL), step Bracket (stop) ASSY Panel, bo

39、ttom Bracket (R) ASSY Mechanism deck “Lid ASSY Upper”Set Optical pick-up ASSY Mechsnism deck Bracket (R) ASSY Main board sub ASSY Bracket (L) ASSY, SW board Ver 1.1 2001.11 6 MZ-E909 Note :On installation of bottom panel assy, adjust the position of both two switches (S807, S808) and two knobs (AVLS

40、, HOLD). 3-3. BRACKET (R) ASSY 3-4. MAIN BOARD SUB ASSY, BRACKET (L) ASSY, SW BOARD 2 3 Screw, ES lock 1 Screw, ES lock 1 Screw, ES lock 1 Screws, ES lock 3 Screw, ES lock Panel, bottom Bracket (L) ASSY Bracket (R) ASSY Ver 1.1 2001.11 6 4 7 1 Knob (HOLD) Main board sub ASSY (Audio board) Bracket (L

41、) ASSY SW board Case (K), battery 5 Remove solder (Two places) 3 Lid, battery case 2 Claw MAIN BOARD SUB ASSY Audio board is supplied with main board sub ASSY. Audio board cant be moved away from main board. Give a damage when take it off forcibly. The part that audio board overlap with main board c

42、ant be re- paired. 7 MZ-E909 3-5. OPTICAL PICK-UP ASSY 5 3 Screw (MI 1.4) 4 Spring, thrust detent 1 Washer 2 Gear (SA) Optical pick-up ASSY (LCX-4E) 8 MZ-E909 Remote control LCD Press and hold down X to hold the current display while the key is being pressed. 4-2-3. How to release the TEST MODE When

43、 method 1 was used: Turn off the power and open the solder bridge on TAP601 on the main board. Note: The solder should be removed clean. The remaining solder may make a short with the chassis and other part. When method 2 was used: Turn off the power. Note: If electrical adjustment (see page 11) has

44、 not been finished completely, always start in the test mode. (The set cannot start in normal mode) 4-3. TEST MODE STRUCTURE 4-1. GENERAL 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 Adjustmen

45、t mode, the system discriminates between CD and MO discs, performs adjustments in sequence automatically, and displays the faulty location if any fault is found. In the Manual mode, selected adjustments can be performed automatically. The attached remote control is used to operate the TEST MODE. Unl

46、ess otherwise specified in the text, the key means that on the remote control. 4-2. SETTING THE TEST MODE 4-2-1. How to set the TEST MODE To set the TEST MODE, two methods are available. 1Solder bridge and short TAP601 (TEST) on the main board. Then turn on the power. MAIN BOARD (SIDE A) 2In the nor

47、mal mode, operate the keys on the set and those on the remote control as specified below: Turn on HOLD switch on the set. Holding down x (STOP) key on the set, press the keys on the remote control in the following sequence: N t N t . t . t N t . t N t . t X t X 4-2-2. Operations when the TEST MODE is set When the TEST MODE is entered, the system