Aiwa-ZV71-cs-sm 电路图 维修手册.pdf

《Aiwa-ZV71-cs-sm 电路图 维修手册.pdf》由会员分享，可在线阅读，更多相关《Aiwa-ZV71-cs-sm 电路图 维修手册.pdf（34页珍藏版）》请在收音机爱好者资料库上搜索。

1、US Model XP-ZV71/ZV71C Canadian Model XP-ZV77 AEP Model XP-ZV77/ZV77D UK Model XP-ZV77 E Model XP-ZV77/ZV77C/ZV77D Australian Model XP-ZV77 Chinese Model XP-ZV77D SERVICE MANUAL PORTABLE CD PLAYER Sony Corporation Personal Audio Company Published by Sony Engineering Corporation 9-877-193-04 2003L16-

2、1 2003.12 SPECIFICATIONS Ver 1.3 2003. 12 Photo : XP-ZV77 System Compact disc digital audio system Laser diode properties Material: GaAlAs Wavelength: = 780 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 l

3、ens surface on the optical pick-up block with 7 mm aperture.) D-A conversion 1bit DAC Frequency response 20 20 000 Hz dB (measured by JEITA CP- 307) Power requirements Two Ni-MH rechargeable batteries (size AA, 700 mAh): 2.4 V DC Two LR6 (size AA) batteries: 3 V DC AC power adaptor (DC IN 4.5 V jack

4、): 120 V, 60 Hz 2 +1 Battery life* (approx. hours) (When you use the CD player on a flat and stable surface.) Playing time varies depending on how the CD player is used. Using two Sony alkaline batteries LR6 (SG) (produced in Japan) EASS 1EASS 2 Audio disc3026 MP3 disc32 * Measured value by the stan

5、dard of JEITA (Japan electronics and Information Technology Industries Association). Operating temperature 5C 35C (41F 95F) Dimensions (w/h/d) (excluding projecting parts and controls) Approx. 136 22.7 139 mm (5 3/8 29/32 5 1/2 in.) Mass (excluding accessories) Approx. 222 g (7.8 oz) Design and spec

6、ifications are subject to change without notice. XP-ZV71/ZV71C/ZV77/ ZV77C/ZV77D Model Name Using Similar MechanismD-EJ760 CD Mechanism TypeCDM-3325ER Optical Pick-up NameDAX-25E RadioFans.CN 收音机爱 好者资料库 2 XP-ZV71/ZV71C/ZV77/ZV77D Flexible Circuit Board Repairing Keep the temperature of the soldering

7、 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 component replacement Never reuse a disconnected chip component. Notice that

8、 the minus side of a tantalum capacitor may be dam- aged by heat. This appliance is classified as a CLASS 1 LASER product. The CLASS 1 LASER PRODUCT MARKING is located on the rear exterior. CAUTION Use of controls or adjustments or performance of procedures other than those specified herein may resu

9、lt in hazardous radiation exposure. On AC power adaptor Use only the commercially-available AC power adaptor whose rated output is 4.5 V DC, 500 mA. Do not use any other AC power adaptor. It may cause a malfunction. Polarity of the plug TABLE OF CONTENTS 1. SERVICING NOTE 3 2. GENERAL 6 3. DISASSEMB

10、LY 7 3-1. Lower Cabinet Section8 3-2. CD Mechanism Section (CDM-3325ER) 9 3-3. Cabinet (front) Sub Assy 10 3-4. Upper Lid Sub Assy 11 3-5. MAIN Board 12 3-6. Optical Pick-up (DAX-25E) 12 4. ELECTRICAL CHECKING 13 5. DIAGRAMS 14 5-1. Block Diagram 15 5-2. Printed Wiring Board MAIN Board (Side A) 16 5

11、-3. Printed Wiring Board MAIN Board (Side B) 17 5-4. Printed Wiring Board LID Board 18 5-5. Schematic Diagram MAIN Board (1/4) 19 5-6. Schematic Diagram MAIN Board (2/4), LID Board 20 5-7. Schematic Diagram MAIN Board (3/4) 21 5-8. Schematic Diagram MAIN Board (4/4) 22 5-9. IC Block Diagrams 23 5-10

12、. IC Pin Function Descriptions 24 6. EXPLODED VIEWS 6-1. Cabinet (upper) Section 26 6-2. Cabinet (lower) Section 27 6-3. CD Mechanism Deck Section (CDM-3325ER) 28 7. ELECTRICAL PARTS LIST 29 SAFETY-RELATED COMPONENT WARNING! COMPONENTS IDENTIFIED BY MARK 0 OR DOTTED LINE WITH MARK 0 ON THE SCHEMATIC

13、 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 PUBLISHED BY SONY. ATTENTION AU COMPOSANT AYANT RAPPORT LA SCURIT! LES COMPOSANTS IDENTIFS PAR UNE MARQUE 0 SUR LES DIAGRAMMES

14、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 SONT DONNS DANS CE MANUEL OU DANS LES SUPPMENTS PUBLIS PAR SONY. RadioFans.CN 收音机爱 好者资料库 3 XP-ZV71/ZV71C/ZV77/ZV77D SECTION 1 SERVICING NOTE The laser

15、 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 body. During repair, pay attention to electrostatic breakdown and also use the procedure in the printed matter which

16、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 as to be focused on the disc reflective surface by the objective lens in the optical pick- up block. Therefore, w

17、hen 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 parameters as par the “Optical Pick-Up Block Checking Procedures” (Part No.: 9-960-027-11) issued separately before repl

18、acing the optical pick-up block. LASER DIODE AND FOCUS SEARCH OPERATION CHECK During normal operation of the equipment, emission of the laser diode is prohibited unless the upper lid is closed while turning ON the S301. (push switch type) The following checking method for the laser diode is operable

19、. Method: Emission of the laser diode is visually checked. 1. Open the upper lid. 2. With a disc not set, turn on the S301 with a screwdriver 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

20、 not emit light, automatic power control circuit or optical pickup is faulty. In this operation, the objective lens will move up and down 4 times along with inward motion for the focus search. NOTES ON HANDLING THE OPTICAL PICK-UP BLOCK OR BASE UNIT Fig. 1 Method to push the S301 S301 RadioFans.CN 收

21、音机爱 好者资料库 4 XP-ZV71/ZV71C/ZV77/ZV77D 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) Confirm the following settings. Solder Land

22、 (SL301) . SHORT HOLD switch (S309). OFF 3) Short the solder land SL302 (TEST) on the MAIN board. 4) Turn on the main power. MAIN Board (SIDE A) IC301 IC501 SL302 (TEST) SL301 (OPEN/CLOSE) 2. Operation when the Service Mode is set. When the Service Mode becomes active, “READING” is displayed and the

23、n TOC of the CD is displayed. If CD is not set, “ERROR” is displayed and LCD on the remote control is lit off. 3. Operations by buttons or Rotary control in the Service Mode (Stop status)TOC is displayed The following confirmations can be performed by operating buttons(on the CD player or the remote

24、 control) or Rotary control. SLED Movement Mode By pressing the / . button on the set or the / . button on the remote control for few seconds, the optical pick-up is moved to outside or inside. (LCD display on the remote control is not changed.) Note : Be sure to keep your eyes apart from the direct

25、 emission of the Laser diode. Do not move the optical pick-up over outermost or innermost. CD-DA/RW Change Over Function By short pressing the button on the set or the button on the remote control, the terminal control for gain control is changed and gain for playing of CD-DA or CD-RW is changed ove

26、r. (LCD display on the remote control is not changed.) Focus Search Mode By short pressing the VOL+ button on the set or the VOL+ button on the remote control, focus search is performed. Laser ON/OFF Selection Function By short pressing the VOL- button on the set or the VOL- button on the remote con

27、trol, laser is switched on or off. Note : Be sure to keep your eyes apart from the direct emission of the Laser diode. Menu Mode By short pressing the x button on the set or the x button on the remote control, the Menu mode is activated. The menu mode is not used for service, therefore press the x b

28、utton on the set or the x button on the remote control for short time to exit this mode. (TOC is displayed) 4. Operations by buttons or Rotary control in the Service Mode (Play status) Note : u / x / / . buttons are available. Tracking/Sled Servo ON/OFF Change Over Function By short pressing the VOL

29、+ button on the set or the VOL+ button on the remote control during play back, Tracking/Sled Servo is switched on or off. (Track number is displayed on the LCD display.) 5 XP-ZV71/ZV71C/ZV77/ZV77D Microcomputer Halt Function By short pressing the VOL- button on the set or the VOL- button on the remo

30、te control during play back, the operation of the microcomputer is stopped. After the microcomputer stopped, any key operation or display operation is not performed. Communication with the DSP is not performed. This mode is used only for checking the operation/ function of servo. (LCD on the remote

31、control is lit off) Note : To exit this mode , switch off and then switch on. 5. How to exit the Service Mode 1)Turn off the power. 2)Open the solder land SL302 (TEST) on the MAIN board. Note : The solder should be removed clean. 6 XP-ZV71/ZV71C/ZV77/ZV77D SECTION 2 GENERALThis section is extracted

32、from instruction manual. Locating the controls 1P-MODE/ button 2SOUND button 3FOLDER SKIP - /+ buttons 4Display 5DISPLAY buttons 6ca/ENTER button* 7s /OFF/CHARGE button 8r button 9t button 0OPEN switch !VOL + */- switch HOLD switch # (headphones) jack $DC IN 4.5V jack* The button has a tactile dot.

33、%Hand strap hole Battery compartment 7 XP-ZV71/ZV71C/ZV77/ZV77D SECTION 3 DISASSEMBLY Note :Disassemble the unit in the order as shown below. LOWER CABINET SECTION CABINET (FRONT) SUB ASSY UPPER LID SUB ASSY CD MECHANISM SECTION (CDM-3325ER) MAIN BOARD SET OPTICAL PICK-UP (DAX-25E) 8 XP-ZV71/ZV71C/Z

34、V77/ZV77D 3 six screws (B2) 2 two screws (B2) 1 Open the battery lid. 8 flexible board (14P) (CN301) 7 Remove the cabinet (front) assy. upper lid assy in the direction of the arrow. 9 hold knob q; lower cabinet section 4 claw 5 claw 6 claw Note :Follow the disassembly procedure in the numerical orde

35、r given. 3-1. Lower Cabinet Section 9 XP-ZV71/ZV71C/ZV77/ZV77D 3-2. CD Mechanism Section (CDM-3325ER) 5 CD mechanism (CDM-3325ER) 3 flexible board (15P) (CN501) 4 three insulators 1 connector (2P) (CN202) 2 connector (4P) (CN201) 10 XP-ZV71/ZV71C/ZV77/ZV77D 3-3. Cabinet (front) Sub Assy 7 cabinet (f

36、ront) assy 5 two claws 6 Remove the upper lid assy in the direction of the arrow. 2 open left spring 4 open right spring 1 Remove the open left spring in the direction of the arrow. upper cabinet 3 Remove the open right spring in the direction of the arrow. upper cabinet upper cabinet 11 XP-ZV71/ZV7

37、1C/ZV77/ZV77D 3-4. Upper Lid Sub Assy 1 seven screws 2 two claws 3 lid cover 4 flexible board 7 LID board 5 LCD case 8 control main button 9 control sub button q; upper lid sub assy 6 liquid crystal display 12 XP-ZV71/ZV71C/ZV77/ZV77D 3-5. MAIN Board 3-6. Optical Pick-up (DAX-25E) 3 MAIN board 2 bat

38、tery terminal board (relay) 1 Remove the soldering. 1 three screws (B1.7 4) 2 gear cover 4 optical pick-up (DAX-25E) chassis 5 three screws (B1.7 4) 6 turn table motor assy (spindle) (M901) 3 motor assy (sled) (M902) 13 XP-ZV71/ZV71C/ZV77/ZV77D SECTION 4 ELECTRICAL CHECKING The CD section adjustment

39、s 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 voltage requirement : DC4.5 V in DC IN jack. (J101) VOLUME button:

40、 Minimum HOLD switch: OFF Checking Location: MAIN board (SIDE A) RF Level Check Condition: Hold the set in horizontal state. Connection: Procedure: 1.Connect the oscilloscope to the test points TP507 (RF) and TP513 (GND) on the MAIN board. 2.Set a disc. (YEDS-18) 3.Press the u button. 4.Check the os

41、cilloscope 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 eye pattern, set the oscillos

42、cope to AC range and increase the vertical sensitivity of the oscilloscope for easy watch- ing. 5.Stop revolving of the disc motor by pressing the x button. RF level 0.7 to 0.9 Vp-p IC402 IC302 Q502 TP513 (GND)TP507 (RF) oscilloscope (AC range) + MAIN board TP507 (RF) TP513 (GND) 14 XP-ZV71/ZV71C/ZV

43、77/ZV77C/ZV77D SECTION 5 DIAGRAMS Note on Printed Wiring Board X : parts extracted from the component side. Y : parts extracted from the conductor side. : Pattern from the side which enables seeing. (The other layers patterns are not indicated.) MAIN board is multi-layer printed board. However, the

44、pat- terns of intermediate-layer have not been included in the dia- gram. Caution: Pattern face side:Parts on the pattern face side seen from (Side A)the pattern face are indicated. Parts face side:Parts on the parts face side seen from (Side B)the parts face are indicated. Note on Schematic Diagram

45、: All capacitors are in F unless otherwise noted. pF: F 50 WV or less are not indicated except for electrolytics and tantalums. All resistors are in and 1/4 W or less unless otherwise specified. %: indicates tolerance. C : panel designation. A : B+ Line. Total current is measured with CD installed.

46、Power voltage is dc 4.5 V and fed with regulated dc power supply from DC IN jack (J101). Voltages and waveforms are dc with respect to ground in playback mode. no mark : CD PLAY Voltages are taken with a VOM (Input impedance 10 M). Voltage variations may be noted due to normal production toler- ance

47、s. Waveforms are taken with a oscilloscope. Voltage variations may be noted due to normal production toler- ances. Circled numbers refer to waveforms. Signal path. J: CD PLAY (ANALOG OUT) Abbreviation CH: Chinese model KR: Korean model HK: Hong Kong model TW: Taiwan model E18: 100-240V AC Area in E

48、model NOTE FOR PRINTED WIRING BOARDS AND SCHEMATIC DIAGRAMS WAVEFORMS 800 mVp-p 1 IC501 9 ARF 200mV/DIV, 400ns/DIV 2 IC402 uh X2 1V/DIV, 20ns/DIV 5 IC301 q; MCLK 1V/DIV, 100ns/DIV 3 IC402 ya MCLK 1V/DIV, 400ns/DIV 59ns 236ns 942ns 3.5Vp-p 2.7 Vp-p 3.1 Vp-p 6 IC302 qs OSC2 1V/DIV, 40ns/DIV 118ns 3.0V

49、p-p 4 IC201 ef SYNC176.4KHZ 1V/DIV, 2us/DIV 5.7us 2.9 Vp-p Note: The components identified by mark 0 or dotted line with mark 0 are critical for safety. Replace only with part number specified. Note: Les composants identifis par une marque 0 sont critiques pour la scurit. Ne les remplacer que par une pice portant le numro spcifi. Ver 1.2 2003.08 1515 XP-ZV71/ZV71C/ZV77/ZV77D 5