sony_d-e990,ej915_ver1.0 电路图 维修原理图.pdf

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1、MICROFILM SERVICE MANUAL SPECIFICATIONS 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 lens surface on the

2、 optical pick-up block with 7 mm aperture.) D-A conversion 1-bit quartz time-axis control Frequency response 20 - 20,000 Hz +1 2 dB (measured by EIAJ CP- 307) Output (at 4.5 V input level) Line output (stereo minijack) Output level 0.7 V rms at 47 kilohms Recommended load impedance over 10 kilohms H

3、eadphones (stereo minijack) Approx. 5 mW + Approx. 5 mW at 16 ohms (Approx. 3 mW + Approx. 3 mW at 16 ohms)* *For the customers in France Optical digital output (optical output connector) Output level: 21 - 15 dBm Wavelength: 630 - 690 nm at peak level Power requirements For the area code of the mod

4、el you purchased, check the upper left side of the bar code on the package. Two Sony NH-14WM rechargeable batteries: 2.4 V DC Two LR6 (size AA) batteries: 3 V DC AC power adaptor (DC IN 4.5 V jack): model:US/Canadian 120 V, 60 Hz AEP/E13 model: 220 - 230 V, 50/60 Hz UK model: 230 - 240 V, 50 Hz Tour

5、ist/E33 model: 100 - 240 V, 50/60 Hz Hong Kong model: 220 V, 50/60 Hz Chinese model: 220 V, 50 Hz Sony DCC-E245 car battery cord for use on car battery: 4.5 V DC Battery life* (approx. hours) (When you use the CD player on a flat and stable surface.) Playing time varies depending on how the CD playe

6、r is used. Two NH-14WM25 (charged for about 4 hours*) Battery case (two40 alkaline batteries) Rechargeable batteries62 NH-14WM and battery case (two alkaline batteries) * Measured value by the standard of EIAJ (Electronic Industries Association of Japan). * Charging time varies depending on how the

7、rechargeable battery is used. Operating temperature 5C - 35C (41F - 95F) Dimensions (w/h/d) (excluding projecting parts and controls) Approx. 127.2 19 130.1 mm (5 18 34 5 18 in.) Mass (excluding rechargeable batteries) Approx. 167.5 g (6.0 oz) Supplied accessories AC power adaptor (1) Headphones/ear

8、phones with remote control (1) Rechargeable batteries (2) Battery carrying case (2) Carrying case (1) Battery case (1) AC plug adaptor (1)* * Supplied with Tourist and E33 models Design and specifications are subject to change without notice. Abbreviation E13: 220 - 230 V AC area in E model E33: 100

9、 - 240 V AC area in E model PORTABLE CD PLAYER D-E990/EJ915 Photo: D-E990 US Model Canadian Model AEP Model UK Model E Model Chinese Model D-EJ915 Tourist Model D-E990 Model Name Using Similar MechanismNEW CD Mechanism Type US: CDM-3022EBG Other: CDM-3022EBA Optical Pick-Up Name US: DAX-22EG Other:

10、DAX-22E Ver 1.0 1999. 10 2 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 unsold

11、ering. 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. ATTENTION AU COMPOSANT AYANT RAPPORT LA SCURIT! LES COMPOSANTS IDENTIFIS PAR UNE MARQUE 0 SUR LES DIAGRAMMES SCHMATIQUES ET LA LISTE DES

12、PICES SONT CRITIQUES POUR LA SCURIT DE FONCTIONNEMENT. NE REMPLACER CES COM- POSANTS QUE PAR DES PICES SONY DONT LES NUMROS SONT DONNS DANS CE MANUEL OU DANS LES SUPPLMENTS PUBLIS PAR SONY. 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 PUB- LISHED BY SONY. TABLE OF CONTENTS 1.SERVICING NOTES.3 2.GENERAL.4 3.DISASSEMBLY.5 4.ELECTRICAL ADJUSTMENTS.7 5.DIAGRAMS 5-1

14、.Block Diagram MAIN Section (1/2) .9 5-2.Block Diagram MAIN Section (2/2) . 11 5-3.Block Diagram POWER SUPPLY Section . 13 5-4.Printed Wiring Board . 16 5-5.Schematic Diagram . 19 5-6.IC Pin Function Description . 27 6.EXPLODED VIEWS. 29 7.ELECTRICAL PARTS LIST. 32 This appliance is classified as a

15、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 result in hazardous ra- diation exposure. 3 SECTION 1 SERVICING NOTES The laser diode in the optical pic

16、k-up block may suffer electro- static 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 is included in the repa

17、ir parts. The flexible board is easily damaged and should be handled with care. Befor Replacing the Optical Pick-Up Block Please be sure to check thoroughly the parameters as par the “Op- tical Pick-Up Block Checking Procedures” (Part No.: 9-960-027- 11) issued separately before replacing the optica

18、l pick-up block. Note and specifications required to check are given below. FOK output: IC601 eg pin When checking FOK, remove the lead wire to disc motor. RF signal P-to-P value: 0.35 to 0.55 Vp-p Precautions for Checking Emission of Laser Diode Laser light of the equipment is focused by the object

19、 lens in the optical pick-up so that the light focuses on the reflection surface of the disc. Therefore, be sure to keep your eyes more then 30 cm apart from the object lens when you check the emission of laser diode. Laser Diode Checking Methods During normal operation of the equipment, emission of

20、 the laser diode is prohibited unless the upper lid is closed while turning ON the S801. (push switch type) The following two checking methods for the laser diode are oper- able. Method: Emission of the laser diode is visually checked. 1.Open the upper lid. 2.With a disc not set, turn on the S801 wi

21、th a screwdriver hav- ing a thin tip as shown in Fig.1. 3.Press theubutton. 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 u

22、p and down 5 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 S801 detection lever detection lever MAIN board S801 4 SECTION 2 GENERAL This section is extracted from instruction manual. 4 Getting started Locating

23、the Controls For details, see pages in parentheses. CD player (front) CD player (inside) qax (stop) /CHG (charge) button (pages 7, 14, 17) q;u (play/pause) button (page 7, 11) 9i/REMOTE jack (page 6) 7 AVLS switch (rear) (page 13) 1 EXT BATT (external battery)/ DC IN 4.5 V (external power input) jac

24、k (pages 6, 17, 18) 4 VOLUME +/ buttons (page 7) 2 LINE OUT (OPTICAL) jack (page 15) 3HOLD switch (page 14) 6 CHG (charge)/ HOLD lamp (pages 14, 17) 5 OPEN switch (pages 6) 8 ./ (AMS/search) buttons (pages 7, 10, 11) qsBattery compartment (pages 17) 5 Remote control Note Use only the supplied remote

25、 control. You cannot operate this CD player with the remote control supplied with other CD players. qf x (stop) button (pages 7, 14) (Front) ql P (play) MODE button (pages 9 - 11) qh Display (pages 8, 10 - 14) wd DISPLAY button (page 12) ws SOUND button (page 13) qg Jog lever u: play/pause (pages 7,

26、11) ./: AMS/search (pages 7, 10, 11) qj LIGHT button Press to illuminate the display on the remote control for about 5 seconds when using the player on the rechargeable batteries or alkaline batteries. w; RPT (repeat)/ENT (enter) button (pages 9 - 11) (Rear) qk VOLUME +/ tab (page 7) qd HOLD switch

27、(page 14) wa Clip You can turn and change the angle of the clip. Getting started 20 Using the carrying case You can carry your player and its battery case together using the supplied carrying case. Insert them into the proper places in the case as illustrated below. 5 UPPER LID ASSY CABINET (UPPER)

28、SUB ASSY Note: Follow the disassembly procedure in the numerical order given. SECTION 3 DISASSEMBLY tweezers 1two spacers 2upper lid assy 3reinforcement 1screw (B2 5) 2five screws (B2 7) 5two screws (B2 3) 6lug bracket L409 4cabinet (upper) sub assy 3claw 3three claws 3two claws 6 INSTALLATION OF MA

29、IN BOARD When installing MAIN board, adjust the S803, 804 and knobs (AVLS, HOLD) S804 MAIN board mechanism deck section S803 knob (AVLS) cabinet (lower) knob (HOLD) 7 SECTION 4 ELECTRICAL ADJUSTMENTS The CD section adjustments are done automatically in this set. Precautions for Check 1.Perform check

30、 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. (J401) VOLUME button: Minimum AVLS switch: NORM HOLD switch: OFF Checking Location: MAIN board (Side A) Focus bias Check Condition: Hold the set in

31、horizontal state. Connection: Procedure: 1.Connect the oscilloscope to the test points TP601 (RF) and TP404 (GND) on the MAIN board. 2.Set a disc. (YEDS-18) 3.Press theubutton. 4.Check the oscilloscope waveform is as shown below. A good eye pattern means that the diamond shape () in the center of th

32、e 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 oscilloscope to AC range and increase the vertical sensitivity of the oscilloscope for easy watch- ing. 5.Stop revolv

33、ing of the disc motor by pressing thexbutton. oscilloscope (AC range) + MAIN board TP601 (RF) TP (GND) 2 k RF level 0.35 to 0.55 Vp-p TP601 (RF) TP404 (GND) D-E990/EJ915 9 10 SECTION 5 DIAGRAMS 5-1.BLOCK DIAGRAM MAIN Section (1/2) 05 RF AMP, DIGITAL SIGNAL PROCESSOR, DIGITAL SERVO PROCESSOR, D-RAM C

34、ONTROLLER IC601 DIGITAL OUT LPF SIGNAL PROCESSOR BLOCK MEMORY CONTROLLER, BUS BOOST BLOCK SERVO BLOCK MDS MDP SENS SCOR SDTO XTAI XTAO RFAC XSOE R4M XLAT CLOK DOUT XRAS XWE XCAS XOE LOUT1 LOUT2 AMUTE FOK SFDR XRST RFDC B A D0-D3 A0-A10 WDCK WFCK XTAO XTAI E F SRDR TRDR FRDR FFDR TFDR 59 F 62 61 A B

35、58 71 RFDC RFAC E LASER DIODE OPTICAL PICK-UP BLOCK DAX-22E (EXCEPT US) DAX-22EG (US) (Page 13) (Page 13) (Page 13) AA B RF E F B RF E F PD PD LD LD DETECTOR VCC X601 16.9MHz A B 60 2, 3, 24, 259 - 12, 15 - 19, 21, 8 5 4 23 22 D-RAM IC602 DQ1-DQ4A0-A10 XRAS DOUT XWE XCAS XOE I J K L CONTROLLER, PRED

36、RIVER 46 47 SFDR SRDR 50 51 FFDR FRDR 48 49 39 40 37 38 16 17 31 29 35 33 27 25 TFDR TRDR M901 (SLED) (FOCUS) (TRACKING) FI2 RI2 FI1 RI1 FI3 FI3 FO2 RO2 FO1 RO1 FO3 RO3 FOCUS/TRACKING COIL DRIVER SLED MOTOR DRIVER IC401 (2/2) M 788328263035242523 32635114443101225 MODE CONTROL ROTATION DETECTOR BEMF

37、 SEPARATOR PREDRIVER FEEDBACK PATTERN GENERATOR OR PHASE/PWM DECODER 44 MDS 43 MDP 17 SCOR 42 4 1 3 2 23 24 25 14 16 18 20 45 27 41 22 C176 FOK R4M XIN 42 XHGON 39 HOLD 21 OPEN XSOE WDCK WFCK SDTD SENS CLOK XLAT XSOE GRSCOR FOKI WFCKI SDTD SCOR SDTI SCK XLAT + BUFFER IC403 SYNC 8 9 12 7 RST DATA LTC

38、H CLK OEB PWM POL FG + + U1 V1 W1 COM U V W VG VG SPINDLE MOTOR DRIVER IC402 M902 (SPINDLE) FG DRVLT XSPDOE C HOLD OFF VCPU 2V S801 (OPEN) OPTICAL PICK-UP POWER ON SWITCH Q411 VDD 2V SYSTEM CONTROLLER IC801 (1/3) 79 SDTO SCK E D F G SYNC RST M 2-AXIS DEVICE CPU INTERFACE S804 HOLD 13 21 85 116, 115,

39、 118, 117109 - 106, 7 - 5, 3 -1, 111 97 104 94 93 113 114 119 120 AMUTE XRST R4M (Page 11) (Page 11) (Page 11) (Page 11) (Page 11) (Page 13) (Page 13) (Page 13) (Page 13) SIGNAL PATH : CD PLAY (ANALOG OUT) : CD PLAY (OPTICAL OUT) V U W 6 D-E990/EJ915 11 12 5-2.BLOCK DIAGRAM MAIN Section (2/2) 477614

40、7928381918 B+ SWITCH Q601 LINE MUTE CONTROL SWITCH Q302 XDOUTON XHPSW SEL AMUTE XRST BEEP AVLS RMKEY KEY SYSTEM CONTROLLER IC801(2/3) D601D602 VCC 3V (LINE OUT JACK) J301 LINE OUT (OPTICAL) OPTICAL TRANSCEIVER VCPU +2V TSB RMKEY GND J302 i / REMOTE S802 809 4 3 2 1 VCPU +2V OFF ON S803 AVLS VCPU 2V

41、IN_L IN_R HEADPHONE AMP IC351 14 ANALOG SWITCH IC302 1 7 2 15 OUT_L OUT_R 8 6 PW_SW MT_SW 19 BEEP 17 PW SW BEEP MT SW 20 6 3 5 TAP802 (TEST) LOUT1 LOUT2 I J K L 31 RMDATI 32 RMDATO 30 RMSCK 34 RMLAT 33 RMRW 78 MICRO COMPUTER INTERFACE REMOTE CONTROL INTERFACE 18 RW 17 XLT 16 SCK 1519 SOTSB 14 1SI 10

42、 MCLK 11 05 COMMUNICATION FORMAT CONVERTER IC802 M H RSTB D415 (Page 10) DOUT (Page 10) (Page 10) AMUTE (Page 10) XRST (Page 10) (Page 13) R4M RST RESET MUTING Q301 SIGNAL PATH : CD PLAY (ANALOG OUT) : CD PLAY (OPTICAL OUT) D-E990/EJ915 13 14 15 5-3.BLOCK DIAGRAM POWER SUPPLY Section D-RAM (IC602) 2

43、V LINEAR CONSTANT CURRENT, CONSTANT VOLTAGE CHARGING BATTERY CHARGE CIRCUIT CHARGING BATTERY VOLTAGE DETECTOR CIRCUIT SAWTOOTH WAVEFORM OCCURRENCE CIRCUIT UP SIDE PRE-DRIVER SWITCHING POWER CIRCUIT 2 WAKE UP SWITCH Q409, 413, Q416 LASER VOLTAGE LIMITER Q412 B+ SWITCH Q602 RIPPLE FILTER Q406 CHARGE C

44、ONTROL Q402, 407 CHARGE ON SWITCH Q403, 404 EXTERNAL BATTERY SWITCH Q408 B+ SWITCH Q401, 405 SWITCHING Q414 SWITCHING POWER CIRCUIT 1 LENEAR REGULATOR SYSTEM CONTROL, INPUT/OUTPUT VG POWER CIRCUIT LOW VOLTAGE DETECTOR CLOCK 57 51 52 43 44 42 45 63 41 CHG SW RF4 INM4 RF21 RF21 RF2 RF2 VC VC VCP VCP B

45、ATM1 INM2 INM2 APCREF APCREF PAPC PA PC MODE2 MODE2 MODE1 MODE1 WAKEUP LATCHC DATA CLOCK DATA CLOCK VLG2O SYNC 14 13 67 8 7 3 12 48 47 15 2 55 59 50 46 49 4 56 11 SDTO SCK PD 13 LD D F G B A H SYNC DTC2D DTC2D DTC1D DTC1D INP1 INP1 RS DC IN V IN RF4 INM4 RS CHGSW V IN DC IN LATCHC WAKEUP VLG1O BATM1

46、 BATM2 CHGMNT CHGMNT VLG2O VLG1O VG L4 9 6 VG L4 RSTB SLPOUT 8VCC2_ON 46XPOWLT 15CHGMNT1 20DCINMNT 40EX_BATT 17BATMNT 6 5 VCC_SWITCHING XLEDDISP 48XAPC_OFF 4AGCCON SYSTEM CONTROLLER IC801 (3/3) RSTB RST 05 58 VCC 2V VCPU 2V D408 CHG/HOLD D416 D411 VCC 2V D404 D402 D406 D410 D401 RECHARGEABLE BATTERY

47、 NH-14WM 2PCS. 2.4V 3V, SPINDLE MOTOR DRIVER (IC402) 3V, HEADPHONE AMP (IC351) 3V DC IN 4.5V + J401 (1/2) J401 (2/2) EXT BATT VG VCC 3V CHARGE LOW BATTERY DETECTOR IC404 E C POWER CONTROL IC401 (1/2) (Page 9) (Page 9) (Page 9) (Page 10) (Page 10) (Page 10) (Page 11) (Page 10) Q603 DVDD 1 IC401 qd CL

48、OCK, IC402 9 CLK IC601 wg CLOK, IC801 q; SCK 2 V/DIV, 2 s/DIV 2 IC601 e; R4M 500 mV/DIV, 200 ns/DIV 3 IC601 rd MDP (CD PLAY) 1 V/DIV, 2 s/DIV 4 IC601 ua RFAC (CD PLAY) 100 mV/DIV, 500 ns/DIV 5 IC601 ih LRCK 1 V/DIV, 20 s/DIV 6 IC601 o; BCK 1 V/DIV, 200 ns/DIV 7 IC601 of XTAO 500 mV/DIV, 50 ns/DIV 8 IC801 ul XIN, IC802 q; MCLK 500 mV/DIV,