sony_MZ-E505_service_manual 维修电路图.pdf

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1、SERVICE MANUAL PORTABLE MINIDISC PLAYER E Model SPECIFICATIONS MZ-E505 US and foreign patents licensed from Dolby Laboratories. Continued on next page Model Name Using Similar MechanismNEW Mechanism TypeMT-MZE505-176 Optical Pick-up NameLCX-4E Ver 1.0 2002. 02 9-873-487-01Sony Corporation 2002B0500-

2、1Personal Audio Company C 2002.02Published by Sony Engineering Corporation 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 o

3、f 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/LP4 Modula

4、tion 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 load impedance 16 Power requirements

5、 Player: Nickel metal hydride rechargeable battery One NH-14WM(A) (supplied): 1.2V, 1,350 mAh One LR6 (size AA) battery (not supplied) Battery charging stand: AC power adaptor DC 3V, AC 100V, 50/60Hz Dimensions Approx. 74.5 81.0 17.6 mm (w/h/d) (3 3 1/4 23/32 in.) (not including projecting parts and

6、 controls) Mass Approx. 73 g (2.6 oz) (the player only) Supplied accessories Headphones/earphones (1) Battery charging stand (1) AC power adaptor (for the supplied battery charging stand) (1) Rechargeable battery (1) Rechargeable battery carrying case (1) Dry battery case (1) Carrying pouch (1) 收音机爱

7、好者资料库 Ra d i o Fa n s .CN 2 MZ-E505 TABLE OF CONTENTS 1.SERVICING NOTES.3 2.GENERAL.4 3.DISASSEMBLY 3-1.Disassembly Flow .5 3-2.Battery Case Lid.6 3-3.Case (Rear).6 3-4.MAIN Board .7 3-5.Upper Panel Section.7 3-6.SWITCH Board.8 3-7.Holder Assy (Z).8 3-8.Mechanism Deck (MT-MZE505-176).9 3-9.Bracket (

8、L) Assy . 10 3-10. Bracket (R) Assy . 10 3-11. Optical Pick-up (LCX-4E). 11 3-12. DC SSM18B Motor (Spindle) (M901). 11 3-13. DC Motor (Sled) (M902) . 12 4.TEST MODE. 13 5.ELECTRICAL ADJUSTMENTS. 18 6.DIAGRAMS 6-1.Block Diagram . 24 6-2.Note for Printed Wiring Boards and Schematic Diagrams . 25 6-3.P

9、rinted Wiring Board MAIN Board (Component Side) . 26 6-4.Printed Wiring Board MAIN Board (Conductor Side) . 27 6-5.Schematic Diagram MAIN Board (1/3) . 28 6-6.Schematic Diagram MAIN Board (2/3) . 29 6-7.Schematic Diagram MAIN Board (3/3) . 30 6-8.IC Pin Function Description . 34 7.EXPLODED VIEWS 7-1

10、.Upper Panel, Case (Rear) Section . 40 7-2.Ornamental Belt Section . 41 7-3.Mechanism Deck Section (MT-MZE505-176) . 42 8.ELECTRICAL PARTS LIST. 43 SAFETY-RELATED COMPONENT WARNING! COMPONENTS IDENTIFIED BY MARK 0 OR DOTTED LINE WITH MARK 0 ON THE SCHEMATIC DIAGRAMS AND IN THE PARTS LIST ARE CRITICA

11、L TO SAFE OPERATION. REPLACE THESE COMPONENTS WITH SONY PARTS WHOSE PART NUMBERS APPEAR AS SHOWN IN THIS MANUAL OR IN SUPPLEMENTS PUB- LISHED BY SONY. CAUTION Use of controls or adjustments or performance of procedures other than those specified herein may result in hazardous ra- diation exposure. B

12、attery life 1) (Unit: Approx. hours) (JEITA 2) Batteries Ni-MH rechargeable battery NH-14WM(A) 3) LR6 (SG) Sony Alkaline dry battery 4) LR6 (SG) 4) and 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 Elec

13、tronics 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). On the AC power adaptor (for the supplied battery charging stand) For use in your h

14、ouse: Use the supplied AC power adaptor. Do not use any other AC power adaptor since it may cause the player to malfunction. Polarity of the plug SP StereoLP2LP4 (normal)Stereo Stereo 333743 495464 8797120 Design and specifications are subject to change without notice. 收音机爱好者资料库 Ra d i o Fa n s .CN

15、3 MZ-E505 NOTES ON HANDLING THE OPTICAL PICK-UP BLOCK OR BASE UNIT The laser diode in the optical pick-up block may suffer electro- static 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

16、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. NOTES ON LASER DIODE EMISSION CHECK Never look into the laser diode emission from right above when checking it for ad

17、justment. It is feared that you will lose your sight. NOTES ON HANDLING THE OPTICAL PICK-UP BLOCK (LCX-4E) The laser diode in the optical pick-up block may suffer electro- static break-down easily. When handling it, perform soldering bridge to the laser-tap on the flexible board. Also perform mea- s

18、ures against electrostatic break-down sufficiently before the op- eration. The flexible board is easily damaged and should be handled with care. OPTICAL PICK-UP FLEXIBLE BOARD SECTION 1 SERVICING NOTES laser-tap main board tape S809 ABOUT VIOLET-COLOR-TYPE Not a whole set of the violet-color-type is

19、 colored violet, but only the ornamental belt and window (ornament) is violet, and the up- per panel, the case (rear) and the battery case lid are colored sil- ver. Notes on chip component replacement Never reuse a disconnected chip component. Notice that the minus side of a tantalum capacitor may b

20、e dam- aged by heat. Flexible Circuit Board Repairing Keep the temperature of the soldering iron around 270 C dur- ing 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 conductor when soldering or unsoldering.

21、 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 boards may not come printed with the lead free mark due to their particular size) Replacement of CXD2671-210GA (IC601) used in thi

22、s set re- quires a special tool. upper panel (silver)battery case lid (silver) case (rear) (silver) ornamental belt (violet) window (ornament) (violet) In performing the repair with the power supplied to the set, re- moving the MAIN board causes the set to be disabled. In such a case, fix a convex p

23、art of the open/close detect switch (S809 on MAIN board) with a tape in advance. COLOR VARIATION SILVERBLUEPINKVIOLET Ea Hong Kongaaaa 收音机爱好者资料库 Ra d i o Fa n s .CN 4 MZ-E505 SECTION 2 GENERAL This section is extracted from instruction manual. Parts and controls The Player 3 2 1 4 9 q; 8 6 7 5 1 ./N

24、* button 2 VOL +*/ button 3 i (earphones) jack 4 OPEN switch 5 Battery compartment 6 GROUP button 7 x button 8 HOLD (Locking the control) switch 9 Terminals for charging stand/ dry battery case (at the bottom) q; 3 Color Info-LED * The N and VOL + buttons have tactile dots. The earphones with a remo

25、te control q; + 8 9 qa 4 1 qs 6 2 5 7 3 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 volume. qa HOLD (Locking the control

26、) switch qs Display window * The stop button also operates as the enter button, depending on the function. The display window of the remote control 6 12345 1 Track number display 2 Charactor information display 3 Disc indication 4 Play mode indication 5 Battery level indication 6 SOUND indication Th

27、e battery charging stand 1 2 3 1 Terminals for charging 2 CHARGE lamp 3 DC IN 3V jack (at the rear) 5 MZ-E505 This set can be disassembled in the order shown below. 3-1.DISASSEMBLY FLOW SECTION 3 DISASSEMBLY SET 3-3. CASE (REAR) (Page 6) 3-4. MAIN BOARD (Page 7) 3-6. SWITCH BOARD (Page 8) 3-2. BATTE

28、RY CASE LID (Page 6) 3-5. UPPER PANEL SECTION (Page 7) 3-7. HOLDER ASSY (Z) (Page 8) 3-8. MECHANISM DECK (MT-MZE505-176) (Page 9) 3-11. OPTICAL PICK-UP (LCX-4E) (Page 11) 3-12. DC SSM18B MOTOR (SPINDLE) (M901) (Page 11) 3-13. DC MOTOR (SLED) (M902) (Page 12) 3-10. BRACKET (R) ASSY (Page 10) 3-9. BRA

29、CKET (L) ASSY (Page 10) 6 MZ-E505 3-3.CASE (REAR) 1Open the battery case lid. 2claw 3battery case lid 1Close the battery terminal board assy. 2screw (1.7) 3two screws (M1.4) 4Remove the case (rear) in the direction of the arrow. 3two screws (M1.4) Note: Follow the disassembly procedure in the numeri

30、cal order given. 3-2.BATTERY CASE LID 7 MZ-E505 3-4.MAIN BOARD 3-5.UPPER PANEL SECTION 1Remove solder of the battery terminal board assy. 2five screws (M1.4 2) 8main board 4boss 5 7flexible board (motor) (CN551) 6flexible board (optical pick-up) (CN501) 3flexible board (switch board) (CN801) 2Open t

31、he upper section. 3two screws (M1.4) 4upper panel section 1flexible board (switch board) (CN801) 3two screws (M1.4) 8 MZ-E505 3-6.SWITCH BOARD 3-7.HOLDER ASSY (Z) 2convex portion 2convex portion 3switch board 1four screws (1.7 2.5) 1convex portion 4holder assy (Z) 1convex portion 3two bosses 2 9 MZ-

32、E505 3-8.MECHANISM DECK (MT-MZE505-176) 7flexible board (motor) (CN551) 8mechanism deck (MT-MZE505-176) 6flexible board (optical pick-up) (CN501) 1step screw (L) 5Lift up the mechanism deck in the direction of the arrow. 3claw 2nut (M1.4) 4convex portion 10 MZ-E505 3-9.BRACKET (L) ASSY 3-10. BRACKET

33、 (R) ASSY 1two claws 2convex portion 2convex portion 3bracket (L) assy 3bracket (R) assy Note: On installation, adjust the position of knob (open) and open slider. open slider 2convex portion 1claw 2convex portion 1claw 2convex portion 1claw 1claw 2convex portion knob (open) 11 MZ-E505 1washer 2gear

34、 (SA) 3screw (M1.4) 4thrust detent spring 5optical pick-up (LCX-4E) 3-11. OPTICAL PICK-UP (LCX-4E) 3-12. DC SSM18B MOTOR (SPINDLE) (M901) 1Remove the four solders. 3three tapping screws 2Remove the flexible board. 4DC SSM18B motor (spindle) (M901) 12 MZ-E505 3-13. DC MOTOR (SLED) (M902) 4two screws

35、(M1.4) 5DC motor (sled) (M902) 1Remove the four solders. 2washer (0.8-2.5) 3gear (SA) 13 MZ-E505 Remote control LCD Press and hold down X key to hold the current display while the key is being pressed. 4-2-3. How to release the TEST MODE When method 1 was used: Turn off the power and open the solder

36、 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: When the power supply is switched on in the state where all electrical adjustments have not finished

37、, it is displayed on LCD as “NV Error and the usual operation cant be per- formed. When a power supply is accidentally turn off in the middle of electrical adjustments, it is again set as test mode and elec- trical adjustments is mode to complete. 4-1. GENERAL When entered in the TEST MODE, this set

38、 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 in sequence automatically, and displays the faulty location if any fault is found. In the Manual m

39、ode, selected adjustments can be performed automatically. The attached remote control is used to operate the TEST MODE. Unless 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 a

40、vailable. 1 Solder bridge and short TAP601 (TEST) on the main board. Then turn on the power. MAIN BOARD (Component Side) 2 In the normal 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, enter t

41、he 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 switches to the dis- play check mode within the TEST MODE. From this mode, the other Test modes can be accessed. When t

42、he TEST MODE is set, the LCD repeats a cycle of the fol- lowing displays: SECTION 4 TEST MODE 010 V2.200 All on All off Microprocessor version display 888BASS12 C615 R613 C620 213200202225208210211209201203204155 222219214198192186223217188220226162177 212194221196215184216176228173199 TAP601 (TEST)

43、 14 MZ-E505 4-4. MANUAL MODE 4-4-1. Outline of the function The Manual mode is designed to perform adjustments and operational checks on the sets operation according to each individual function. Usually, no adjustments are made in this mode. However, the Manual mode is used to clear the memory befor

44、e performing automatic adjustments in the Overall Adjustment mode. 4-4-2. How to set the Manual mode 1. Set the TEST MODE and turn the control towerd VOL + to set the Manual mode. Remote control LCD display 2. During each test, turn and hold the control towerd N or . for a while to move the optical

45、pickup on the sled outer or inner perimeter. 000 Manual Change Major Item Change Middle Item Change Minor Item Change Adjustment Value Write Adjustment Value . : 100th place of mode number increase : 100th place of mode number decrease : 10th place of mode number increase : 10th place of mode number decrease : Up : Down key : When adjusted value is changed : Adjusted value is written. When adjusted value is not changed : That item is adjusted auto