sony_MZ-B10_service_manual 维修电路图.pdf

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1、SERVICE MANUAL PORTABLE MINIDISC RECORDER US Model AEP Model Tourist Model SPECIFICATIONS MZ-B10 US and foreign patents licensed from Dolby Laboratories. Continued on next page Model Name Using Similar MechanismNEW Mechanism TypeMT-MZN710-177 Optical Pick-up NameLCX-5R Ver 1.2 2003. 09 9-877-031-03S

2、ony Corporation 2003I16-1Personal Audio Company C 2003.9Published 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 mea

3、sured at a distance of 200 mm from the lens surface on the optical pick-up block with 7 mm aperture.) Recording and playback time When using MDW-80 Maximum 160 min. in monaural. Maximum 320 min. in LP4 stereo Revolutions 350 rpm to 2,800 rpm (CLV) Error correction ACIRC (Advanced Cross Interleave Re

4、ed Solomon Code) Sampling frequency 44.1 kHz Sampling rate converter Input: 32 kHz/44.1 kHz/48 kHz Coding ATRAC (Adaptive TRansform Acoustic Coding) ATRAC3 LP2/LP4 Modulation system EFM (Eight to Fourteen Modulation) Speakers (two units) 28 mm (11/8 in.) dia. per unit Frequency response (digital/ana

5、log input) 20 to 20,000 Hz 3 dB Inputs Microphone: stereo mini-jack (minimum input level 0.25 mV) Line in1): stereo mini-jack for analog input (minimum input level 39 mV) optical (digital) mini-jack for optical (digital) input Outputs i: stereo mini-jack (dedicated remote control jack) Maximum outpu

6、t (DC)2) Headphones/earphones: 5 mW + 5 mW (16 ) Speakers (monaural): 140 mW (70 mW 2) General Power requirements AC power adaptor DC 3V LR6 (size AA) alkaline dry battery Dimensions2) Approx. 117.2 23.0 74.4 mm (w/h/d) (45/8 29/32 3 in.) not incl. projecting parts and controls. Mass Approx. 150 g (

7、5.3 oz) (main unit only) 1) The LINE IN (OPTICAL) jack is used to connect either a digital (optical) cable or a line (analog) cable. 2) Measured in accordance with JEITA. Supplied accessories Design and specifications are subject to change without notice. Headphones/earphones (1) Carrying pouch (1)

8、Handstrap (1) Clamp filter for the AC power adaptor (1) Attach the clamp filter when using the optional AC power adaptor. Headphones/earphones (1) LR6 (size AA) alkaline dry batteries (2) (World model only) 收音机爱好者资料库 Ra d i o Fa n s .CN 2 MZ-B10 CAUTION Use of controls or adjustments or performance

9、of procedures other than those specified herein may result in hazardous ra- diation exposure. 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. Flexible Circuit Board Repairing Keep the temperat

10、ure 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. UNLEADED SOLDER Boards requiring use of unleaded solder are printed wi

11、th 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) : LEAD FREE MARK Unleaded solder has the following characteristics. Unleaded solder melts at a temperature about 40 C h

12、igher than ordinary solder. Ordinary soldering irons can be used but the iron tip has to be applied to the solder joint for a slightly longer time. Soldering irons using a temperature regulator should be set to about 350 C . Caution: The printed pattern (copper foil) may peel away if the heated tip

13、is applied for too long, so be careful! Strong viscosity Unleaded solder is more viscous (sticky, less prone 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 ma

14、y also be added to ordinary solder. On power sources Use house current, LR6 (size AA) battery. For use in your house: use the AC power adaptor supplied with this recorder. Do not use any other AC power adaptor since it may cause the recorder to malfunction. Connect the AC power adaptor to an easily

15、accessible AC outlet. Should you notice an abnormality in the AC power adaptor, disconnect it from the AC outlet immediately. The recorder is not disconnected from the AC power source (mains) as long as it is connected to the wall outlet, even if the recorder itself has been turned off. If you are n

16、ot going to use this recorder for a long time, be sure to disconnect the power supply (AC power adaptor, dry battery). To remove the AC power adaptor from the wall outlet, grasp the adaptor plug itself; never pull the cord. Polarity of the plug SAFETY-RELATED COMPONENT WARNING! COMPONENTS IDENTIFIED

17、 BY MARK 0 OR DOTTED LINE WITH MARK 0 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 SHOWN IN THIS MANUAL OR IN SUPPLEMENTS PUB- LISHED BY SONY. Battery life The battery life may be shorter due to

18、operating conditions and the temperature of the location. When recording1)2) (Unit: approx.hours)(JEITA3) 1)When using a Sony LR6 (SG) “STAMINA” alkaline dry batteries (produced in Japan) and “PowerMode” is set to “NORMAL” (page 40). Setting “PowerMode” to “QUICK” result in a shorter battery life (p

19、age 40). 2)When recorded with the built-in microphone. Recording modeApprox. hours SP24 LP234 LP448 MONO34 Notes Stop the recorder before replacing batteries. An optional AC power adaptor is recommended for long recording. 3)Measured in accordance with the JEITA (Japan Electronics and Information Te

20、chnology Industries Association) standard. When playing1) (Unit: approx.hours)(JEITA2) Recording mode Speaker3)Headphones/ earphones4) SP4590 LP250100 LP455110 MONO50100 1)When using a Sony LR6 (SG) “STAMINA” alkaline dry batteries (produced in Japan) and “PowerMode” is set to “NORMAL” (page 40). 2)

21、Measured in accordance with the JEITA (Japan Electronics and Information Technology Industries Association) standard. 3)When played using the built-in speaker. 4)When played using headphones/earphones. 收音机爱好者资料库 Ra d i o Fa n s .CN 3 MZ-B10 TABLE OF CONTENTS 1. SERVICING NOTES. 4 2. GENERAL. 5 3. DI

22、SASSEMBLY 3-1.Disassembly Flow. 6 3-2.Case (Lower) Assy. 7 3-3.Speaker Assy. 7 3-4.MAIN Board . 8 3-5.Electret Condenser Microphone (MIC901) . 8 3-6.Set Chassis Assy, Case (Spk) Assy . 9 3-7.Case (Upper) Assy . 9 3-8.LCD Module . 10 3-9.Rec Button Assy . 10 3-10. Mechanism Deck (MT-MZN710-177). 11 3

23、-11. Gear (SA), OP Service Assy (LCX-5R) .12 3-12. Holder Assy .13 3-13. DC Motor (Sled) (M602) . 13 3-14. DC Motor (Over Write Head Up/Down) (M603), DC SSM18B Motor (Spindle) (M601) . 14 4. TEST MODE. 15 5. ELECTRICAL ADJUSTMENTS. 20 6. DIAGRAMS 6-1.Block Diagram . 35 6-2.Note For Printed Wiring Bo

24、ard And Schematic Diagrams . 36 6-3.Printed Wiring Board MAIN Board (Side A) .37 6-4.Printed Wiring Board MAIN Board (Side B) .38 6-5.Schematic Diagram MAIN Board (1/4) . 39 6-6.Schematic Diagram MAIN Board (2/4) . 40 6-7.Schematic Diagram MAIN Board (3/4) . 41 6-8.Schematic Diagram MAIN Board (4/4)

25、 . 42 6-9.IC Pin Function Description. 47 7. EXPLODED VIEWS 7-1.Lower Case Section .53 7-2.Upper Chassis Section .54 7-3.Chassis Section . 55 7-4.Mechanism Deck Section-1 (MT-MZN710-177/M).56 7-5.Mechanism Deck Section-2 (MT-MZN710-177/M).57 8. ELECTRICAL PARTS LIST.58 收音机爱好者资料库 Ra d i o Fa n s .CN

26、4 MZ-B10 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 e

27、lectrostatic 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 adj

28、ustment. It is feared that you will lose your sight. NOTES ON HANDLING THE OPTICAL PICK-UP BLOCK (LCX-5R) 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- su

29、res 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 In performing the repair with the power supplied to the set, re- moving the MAIN board ca

30、uses the set to be disabled. In such a case, make a solder bridge to short SL802 (OPEN CLOSE) on the MAIN board in advance. This set requires the patch data in the nonvolatile memory (IC802) to be rewritten, when the nonvolatile memory was re- placed. (See page 30) case (upper) assy MAIN board flexi

31、ble board (over write head) Handle the FLEXIBLE board (over write head) with care, as it has been soldered directly to the MAIN board. In repairing the component side of MAIN board, connect the FLEXIBLE board (over write head) and the MAIN board with the lead wires in advance. IC801 * CSP(Chip Size

32、Package) SL802 (OPEN/CLOSE) SL802 (OPEN/CLOSE) MAIN Board (Side B) 5 MZ-B10 SECTION 2 GENERAL Looking at the controls Front of the recorder A Display window B MENU/ENTER button You can use various settings using menu items. C SPEED CONTROL +, button Use this button to increase or decrease the playba

33、ck speed. D Built-in microphone E Speakers F REC MODE button Use this button to select 2 times normal (LP2 or monaural) or 4 times (LP4) the normal (SP) recording time. G GROUP button This button is used when cueing to a group or erasing a group. H xSTOP button I NPLAY (play) button The N PLAY butto

34、n has a tactile dot. J REC button K . REVIEW AMS, CUE AMS (search /AMS) buttons L TRACK MARK button Use this button to add track marks automatically or to divide a track into separate tracks. M X PAUSE button N REC indicator Lights up while recording. O i (headphones/earphones) jack Connect headphon

35、es or earphones to this jack. 1 6 789q; 2435 qg qhqjqkqlw; qa qsqdqf 9 10 P MIC (PLUG IN POWER) jack Connect an optional stereo microphone to this jack to record. The MIC (PLUG IN POWER) jack has a tactile dot. Q LINE IN (OPTICAL) jack Connect an optional optical or line cable to this jack to record

36、 from a CD, etc. R VOL control The VOL control has a tactile dot. S HOLD switch Slide the switch in the direction of the arrow (a yellow mark appears) to disable the buttons on the recorder. To prevent the buttons from being accidentally operated when you carry the recorder, use this function. T OPE

37、N switch Back of the recorder A Battery compartment Insert two alkaline dry batteries (size AA) here. B ERASE button During playback, press this button to erase the track. C ALL ERASE button Press ERASE while pressing this button to erase the contents of an entire disc. D DC IN 3V jack When you conn

38、ect an optional AC power adaptor, connect it to this jack. E Handstrap hole 2 1 34 5 How to attach a hand strap The display window A Play mode indication Lights up when selecting specific play mode. B Disc indication Shows that the disc is rotating for recording, playing or editing an MD. C Characte

39、r information display Displays the disc and track names, error messages, track numbers, etc. D Group indication Lights up while in group play. Flashes while selecting a group. E Battery level indication F SOUND indication Lights up when the sound mode (SOUND 1, SOUND 2) is selected. G Pause indicati

40、on H REC indication I SYNC (synchro-recording) indication J SP, LP2, LP4, MONO indication Shows the recording mode while recording and SP/LP mode of a track while playing. K REC REMAIN indication Shows the remaining recordable time in a disc while recording or stopped. L Time indication Shows the el

41、apsed time while recording or playing. 1234 9q;qaqs 5678 11 This section is extracted from instruction manual. 6 MZ-B10 CASE (LOWER) ASSY CASE (UPPER) ASSY LCD MODULE REC BUTTON ASSYGEAR (SA), OP SERVICE ASSY (LCX-5R) In order to remove set chassis assy and case (spk) assy please remove MAIN board ,

42、speaker assy , electret condencer microphone and mechanism deck. ELECTRET CONDESER MICROPHONE (MIC901) SET CHASSIS ASSY, CASE (SPK) ASSY MAIN BOARDSPEAKER ASSY MECHANISM DECK (MT-MZN710-177) HOLDER ASSY DC MOTOR (SLED) (M602) DC MOTOR (OVER WRITE HEAD UP/DOWN) (M603), DC SSM18B MOTOR (SPINDLE) (M601

43、) SET SECTION 3 DISASSEMBLY This set can be disassembled in the order shown below. 3-1.Disassembly Flow 7 MZ-B10 Note: Follow the disassembly procedure in the numerical order given. 3-2.Case (Lower) Assy 3-3.Speaker Assy 4 two tapping screws (B 2.0) 2 two tapping screws (B 2.0) blue white black red

44、1Remove the four solderings 3spk (A) assy 5spk (B) assy Note: On installation, lower case is made to crawl on a speaker cable. 2two screws (M1.4) 1three screws (M1.4) 3screw (M1.4) 4screw (step) 5Remove the case (lower) in the direction of the arrow. Note: On installation, adjust the position of bot

45、h switch and knob (hold). knob (hold) switch 8 MZ-B10 3-5.Electret Condenser Microphone (MIC901) 3-4.MAIN Board 7 two screws (M 1.4) 9MAIN board blue white black red 1Remove the four solderings 2Remove the two solderings 4Remove the soldering 8flexible board (optical pick-up) (CN501) 6flexible board (motor) (CN701) 5flexible board (CN801) 3Remove two solders of the flexible board (over write head). 1 two tapping screws (M 1.7 x 3) 2 retainer plate (mic) 3 cushion (microphone) 4 electret condenser micr