sony_d-ne900_ls_ver1.3 电路图 维修原理图.pdf

《sony_d-ne900_ls_ver1.3 电路图 维修原理图.pdf》由会员分享，可在线阅读，更多相关《sony_d-ne900_ls_ver1.3 电路图 维修原理图.pdf（44页珍藏版）》请在收音机爱好者资料库上搜索。

1、D-NE900/NE900LS US Model Canadian Model AEP Model UK Model E Model Australian Model Tourist Model D-NE900 Korea Model Chinese Model D-NE900LS SERVICE MANUAL PORTABLE CD PLAYER Sony Corporation Personal Audio Company Published by Sony Engineering Corporation 9-961-344-04 2004J16-1 2004.10 SPECIFICATI

2、ONS Ver 1.3 2004.10 Model Name Using Similar MechanismD-NE1 CD Mechanism TypeCDM-3325ER2 Optical Pick-up NameDAX-25E System Compact disc digital audio system Laser diode properties Material: GaAlAs Wavelength: = 770 - 800 nm Emission duration: Continuous Laser output: Less than 44.6 W (This output i

3、s the value measured at a distance of 200 mm from the objective lens surface on the optical pick-up block with 7 mm aperture.) D-A conversion 1-bit quartz time-axis control Frequency response 20 - 20 000 Hz +1 2dB (measured by JEITA) Output (at 3 V input level) Line output (stereo minijack) Output l

4、evel 0.7 V rms at 47 k Recommended load impedance over 10 k Headphones (stereo minijack) Approx. 5 mW + Approx. 5 mW at 16 (Approx. 1.5 mW + Approx. 1.5 mW at 16 )* *For the customers in Europe Optical digital output (optical output connector) Output level: 21 - 15 dBm Wavelength: 630 - 690 nm at pe

5、ak level Power requirements Sony NH-14WM rechargeable battery: 1.2 V DC 1 LR6 (size AA) battery: 1.5 V DC 1 AC power adaptor (DC IN 3 V jack) Battery life*1 (approx. hours) When you use the CD player on a flat and stable surface. When LIGHT mode and SOUND mode are set to “OFF.” Playing time varies d

6、epending on how the CD player is used. When using one NH-14WM (charged for about 5 hours*2) G-PROTECTION “G-PRO 1”“G-PRO 2” Audio CD2020 ATRAC CD*33535 MP3 CD*42828 When using external battery case (one alkaline battery*5) G-PROTECTION “G-PRO 1”“G-PRO 2” Audio CD3030 ATRAC CD*35050 MP3 CD*44040 When

7、 using one NH-14WM and external battery case (one alkaline battery*5) G-PROTECTION “G-PRO 1”“G-PRO 2” Audio CD5050 ATRAC CD*38080 MP3 CD*47070 *1 Measured value by the standard of JEITA (Japan Electronics and Information Technology Industries Association) *2 Charging time varies depending on how the

8、 rechargeable battery is used. *3 Recorded at 48 kbps *4 Recorded at 128 kbps *5 When using Sony alkaline battery LR6 (SG) (produced in Japan) Photo : BLACK Continued on next page 2 D-NE900/NE900LS TABLE OF CONTENTS 1. SERVICING NOTE 4 2. GENERAL 6 3. DISASSEMBLY 3-1. UPPER LID ASSY 8 3-2. SUB BOARD

9、 9 3-3. CABINET (INNER) 10 3-4. MAIN BOARD, CD MECHANISM DECK (CDM-3325ER2) 11 3-5. TURN TABLE MOTOR ASSY (M901), SLED MOTOR ASSY (M902), OPTICAL PICK-UP (DAX-25E) 12 4. ELECTRICAL CHECKING 13 5. DIAGRAMS 14 5-1. BLOCK DIAGRAM MAIN SECTION-1 15 MAIN SECTION-2 16 POWER SECTION 17 5-2. PRINTED WIRING

10、BOARD MAIN BOARD (SIDE A) 18 5-3. PRINTED WIRING BOARD MAIN BOARD (SIDE B) 19 5-4. SCHEMATIC DIAGRAMS MAIN BOARD (1/4) 20 5-5. SCHEMATIC DIAGRAMS MAIN BOARD (2/4) 21 5-6. SCHEMATIC DIAGRAMS MAIN BOARD (3/4) 22 5-7. SCHEMATIC DIAGRAMS MAIN BOARD (4/4) 23 5-8. PRINTED WIRING BOARD SUB BOARD (CHINESE A

11、ND KOREAN MODELS) 24 5-9. SCHEMATIC DIAGRAMS SUB BOARD (CHINESE AND KOREAN MODELS) 25 5-10.PRINTED WIRING BOARD SUB BOARD (EXCEPT CHINESE AND KOREAN MODELS) 26 5-11.SCHEMATIC DIAGRAMS SUB BOARD (EXCEPT CHINESE AND KOREAN MODELS) 27 5-12.IC PIN FUNCTION DESCRIPTIONS 29 6. EXPLODED VIEWS 6-1. CABINET

12、(UPPER) SECTION 34 6-2. CABINET (LOWER) SECTION 35 6-3. CD MECHANISM SECTION (CDM-3325ER2) 36 7. ELECTRICAL PARTS LIST 37 Operating temperature 5C - 35C (41F - 95F) Dimensions (w/h/d) (excluding projecting parts and controls) Approx. 127 21.8 139.4 mm (5 78 5 12in.) Mass (excluding accessories) Appr

13、ox. 168 g (6.0 oz.) Supplied accessories AC power adaptor (1) Remote control (1) US and foreign patents licensed from Dolby Laboratories. Rechargeable battery (1) Charging Stand (1) Battery carrying case (1) Carrying porch (1) External battery case (1) CD-ROM (SonicStage Simple Burner) (1) Users gui

14、de for SonicStage Simple Burner (1) Operating instruction Headphones (1) (for US model) Earphones (1) (for other models) Design and specifications are subject to change without notice. 3 D-NE900/NE900LS Unleaded solder Boards requiring use of unleaded solder are printed with the lead- free mark (LF)

15、 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 40C higher than ordinary solder.

16、 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 350C. Caution: The printed pattern (copper foil) may peel away if the heated tip is applied for too long, so b

17、e 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 may also be added to ordinary s

18、older. 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. Notes on chip

19、 component replacement Never reuse a disconnected chip component. Notice that the minus side of a tantalum capacitor may be dam- aged by heat. CAUTION Use of controls or adjustments or performance of procedures other than those specified herein may result in hazardous radiation exposure. CAUTION INV

20、ISIBLE LASER RADIATION WHEN OPEN DO NOT STARE INTO BEAM OR VIEW DIRECTLY WITH OPTICAL INSTRUMENTS CLASS 1M INVISIBLE LASER RADIATION WHEN OPEN DO NOT VIEW DIRECTLY WITH OPTICAL INSTRUMENTS On AC power adaptor Use only the AC power adaptor supplied. If your CD player is not supplied with the one, use

21、 the AC-E30HG AC power adaptor. Do not use any other AC power adaptor. It may cause a malfunction. Polarity of the plug Do not touch the AC power adaptor with wet hands. Connect the AC power adaptor to an easily accessible AC outlet. Should you notice an abnormality in the AC power adaptor, disconne

22、ct it from the AC outlet immediately. 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 CRITICAL TO SAFE OPERATION. REPLACE THESE COMPONENTS WITH SONY PARTS WHOSE PART NUMBERS APPEAR AS SHOWN IN THIS MANUA

23、L OR IN SUPPLEMENTS PUBLISHED BY SONY. ATTENTION AU COMPOSANT AYANT RAPPORT LA SCURIT! LES COMPOSANTS IDENTIFS PAR UNE MARQUE 0 SUR LES DIAGRAMMES SCHMATIQUES ET LA LISTE DES PICES SONT CRITIQUES POUR LA SCURIT DE FONCTIONNEMENT. NE REMPLACER CES COMPOSANTS QUE PAR DES PISES SONY DONT LES NUMROS SON

24、T DONNS DANS CE MANUEL OU DANS LES SUPPMENTS PUBLIS PAR SONY. 4 D-NE900/NE900LS SECTION 1 SERVICING NOTE The laser diode in the optical pick-up block may suffer electrostatic breakdown because of the potential difference generated by the charged electrostatic load, etc. on clothing and the human bod

25、y. During repair, pay attention to electrostatic breakdown 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 The laser beam on this model is concentrated so

26、 as to be focused on the disc reflective surface by the objective lens in the optical pick- up block. Therefore, when checking the laser diode emission, observe from more than 30 cm away from the objective lens. BEFORE REPLACING THE OPTICAL PICK-UP BLOCK Please be sure to check thoroughly the parame

27、ters as par the “Optical Pick-Up Block Checking Procedures” (Part No.: 9-960-027-11) issued separately before replacing the optical pick-up block. Note and specifications required to check are given below. FOK output: IC601 yg pin When checking FOK, remove the lead wire to disc motor. RF signal P-to

28、-P value: 0.45 to 0.65 Vp-p NOTES ON HANDLING THE OPTICAL PICK-UP BLOCK OR BASE UNIT Fig. 1 Method to push the S812 S812 IC601 FOK output ygp MAIN BOARD (SIDE B) IC601 LASER DIODE AND FOCUS SEARCH OPERATION CHECK During normal operation of the equipment, emission of the laser diode is prohibited unl

29、ess the upper lid is closed while turning ON the S812. (push switch type) The following checking method for the laser diode is operable. Method: Emission of the laser diode is visually checked. 1. Remove the upper lid. (Please refer to disassembly.) 2. With a disc not set, turn on the S812 with a sc

30、rewdriver having a thin tip as shown in Fig.1. 3. Press the u button. 4. Observing the objective lens, check that the laser diode emits light. When the laser diode does not emit light, automatic power control circuit or optical pickup is faulty. In this operation, the objective lens will move up and

31、 down 4 times along with inward motion for the focus search. 5 D-NE900/NE900LS SERVICE MODE The following confirmation can be performed when the Service Mode is set. 1. How to set the Service Mode. To set the Service Mode, the following method is available. 1) Confirm the set is not powered on. 2) C

32、onfirm the following settings. OPEN/CLOSE detect switch (S812) . OFF Solder Land (SL812) . OPEN HOLD switch (S802). OFF 3) Short the solder land SL805 (TEST) on the MAIN board. 4) Turn on the main power. 2. Operation when the Service Mode is set. When the Service Mode becomes active, following messa

33、ges are displayed onthe remote control LCD. 1) Turn off the power. 2) Open the solder land SL805 (TEST) on the MAIN board. Note : The solder should be removed clean. VP073 : Microcomputer version display SL812 (OPEN)S812 SL805 (TEST) MAIN BOARD (SIDE B) 6 D-NE900/NE900LS SECTION 2 GENERALThis sectio

34、n is extracted from instruction manual. 1 5 6 7 8 9 q; qa 2 3 4 Locating the controls CD player (Continued) 1 Display 2 OPERATION lamp Color of the lamp changes according to the type of music source being played. Red: Audio CD, Green: ATRAC3plus/ ATRAC3 file, Orange: MP3 file For some time after the

35、 CD is inserted, the lamp lights up in red, orange and green in turn. This lamp also functions as the HOLD lamp and the CHG (charge) lamp. 3 ( group) button 4 i (headphones)/LINE OUT (OPTICAL) jack Switch the function of the jack, using the menu. 5 VOL (volume) +*1/buttons 6 (group) + button 7 HOLD

36、switch (rear) Slide the switch in the direction of the arrow to disable the buttons on the CD player. 8 Jog dial Use to select a group, a file, play mode, etc. The search direction changes according to the direction in which the jog dial is turned. 9 5-way control key u: play/pause .:AMS*2/rewind :A

37、MS/fast forward x/CHG: stop/charge DISPLAY/MENU: Use to select menu items and enter the selection. Push the control key toward u, , . or x/CHG with your finger on DISPLAY/MENU. q; OPEN switch Squeeze the switch from both sides. qa Terminals for the charging stand/external battery case *1 The button

38、has a tactile dot. *2 Automatic Music Sensor DISPLAY/ MENU 7 D-NE900/NE900LS 1 2 3 4 5 6 7 8 9 q; Remote control For details, see the pages in parentheses. 1 VOL (volume) +/ control Turn to adjust the volume. 2 x (stop) button 3 Jog lever (. u/ENT ) u (play/pause)/ENT (enter): Press during stop to s

39、tart play, and press during play to pause play. When selecting menu items, press to enter the selection. Flick toward . or : AMS, rewind, fast forward 4 Display 5 ( group) +/ buttons 6 Clip 7 HOLD switch Slide the switch in the direction of the arrow (a yellow mark appears) to disable the buttons on

40、 the remote control. 8 DISPLAY button 9 P MODE/ button q; SOUND button Note Use only the supplied remote control. You cannot operate this CD player with the remote control supplied with other CD players. 8 D-NE900/NE900LS 3-1. UPPER LID ASSY 1 two screws 2 bracket(hinge R) 3 bracket(hinge L) 5 6 7 u

41、pper lid assy 4 Close the cover until the tip of the cover of the top cover assembly is left open by 5 mm, then slide the top cover assembly in the direction of the arrow. Note : Follow the disassembly procedure in the numerical order given. SECTION 3 DISASSEMBLY Note :Disassemble the unit in the or

42、der as shown below. UPPER LID ASSYMAIN BOARD, CD MECHANISM DECK (CDM-3325ER2) TURN TABLE MOTOR ASSY (M901), SLED MOTOR ASSY (M902), OPTICAL PICK-UP (DAX-25E) SUB BOARDCABINET (INNER) SET 9 D-NE900/NE900LS 1 six screws 2 cover guide 4 SUB board 5 button 6 upper lid assy 3 flexible flat cable (CN2002)

43、 3-2. SUB BOARD 10 D-NE900/NE900LS 1 eight screws 6 cabinet (inner) 5 spring (upper lid) 2 spring (lock claw) spring (lock claw) 3 lock claw (L) lock claw (R)lock claw (L) 4 lock claw (R) battery terminal board (+) Note: It is recommended to visually check that the battery terminal board (+) is inst

44、alled in the specified position after assembling the cabinet (INNER) because, in some cases, the battery terminal board (+) cannot be housed when assembling the cabinet (INNER). 3-3. CABINET (INNER) 11 D-NE900/NE900LS 1 connector (2pin) qg guide (A) qh knob (hold) 2 connector (4pin) 3 spacer5 three

45、insulator spacer 7 flexible flat cable 4 flexible board (CN604) 9 battery terminal board (+) qf screw 8 Remove two solders of the MAIN board. 0 Remove two solders of the MAIN board. qa battery terminal board (-) qd MAIN board 6 CD mechanism deck (CDM-3325ER2) qs static electricity incorrect operatio

46、n prevention earth 3-4. MAIN BOARD, CD MECHANISM DECK (CDM-3325ER2) 12 D-NE900/NE900LS 1 three screws (B1.7x4) 2 gear cover 3 sled motor assy (M902) 4 optical pick-up (DAX-25E) 5 three screws (B1.7x4) 6 turn table motor assy (M901) 3-5. TURN TABLE MOTOR ASSY (M901), SLED MOTOR ASSY (M902), OPTICAL P

47、ICK-UP (DAX-25E) 13 D-NE900/NE900LS The CD section adjustments are done automatically in this set. In case of operation check, confirm that RF level. Precautions for Check 1.Perform check in the order given. 2.Use YEDS-18 disc (Part No.: 3-702-101-01) unless otherwise indicated. 3.Power supply volta

48、ge requirement : DC3.0V in terminals for the charging stand (J401, J402). VOLUME button: Minimum AVLS switch: OFF HOLD switch: OFF G-PROTECTION switch: 1 Checking Location: MAIN board (Side A) RF Level Check Condition: Hold the set in horizontal state. Connection: Procedure: 1.Connect the oscillosco

49、pe to the test points TP649 (RF) and TP701 (AGND) on the MAIN board. 2.Set a disc. (YEDS-18) 3.Press the u button. 4.Check the oscilloscope waveform is as shown below. A good eye pattern means that the diamond shape () in the center of the waveform can be clearly distinguished. RF Signal reference Waveform (Eye Pattern) VOLT/DIV : 100 mV (With the 10:1 probe in use) TIME/DIV : 500 ns To watch the