sony_d-e440,e441,e443,e445,e446,e449 维修电路原理图.pdf

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1、Ver 1.0 1999.02 MICROFILM D-E440/E441/E441SR/E443/E445/ E446CK/E449CK SERVICE MANUAL COMPACT DISC COMPACT PLAYER SPECIFICATIONS US Model D-E441/E445/E446CK/E449CK Canadian Model D-E441/E445/E446CK AEP Model D-E440/E441/E441SR/E443/E445/E446CK UK Model D-E441/E441SR/E443/E445/E446CK E Model D-E441/E4

2、43/E445/E446CK Australian Model D-E441/E445/E446CK Chinese Model D-E441/E445 Model Name Using Similar MechanismNEW CD Mechanism TypeCDM-2811EAA Optical Pick-up TypeDAX-11E CD player System Compact disc digital audio system Laser diode properties Material: GaAIAs Wavelength : = 780 nm Emission durati

3、on: 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 optical pick-up block with 7 mm aperture. ) Error correction Sony Super Strategy Cross Interleave Reed Solomon Code D-A conversion 1-bit quartz time-axis c

4、ontrol Frequency response 20 - 20,000 Hz +1 dB (measured by EIAJ CP- 307) -2 Output (at 4.5 V input level) Headphones (stereo minijack) 15 mW + 15 mW at 16 ohms Line output (stereo minijack) Output level 0.7 V rms at 47 kilohms Recommended load impedance over 10 kilohms General Power requirements Fo

5、r the area code of the model you purchased, check the upper left side of the bar code on the package. Sony BP-DM10 Rechargeable battery: 2.4 V DC, Ni-Cd, 650 mAh Sony BP-DM20 Rechargeable battery: 2.4 V DC, Ni-MH, 1,200 mAh Two LR6 (size AA) batteries: 3 V DC AC power adaptor (DC IN 4.5 V jack): US,

6、 Canadian, Central and South America model: 120 V, 60 Hz AEP, German, French, EE, E13 model: 220 - 230 V, 50/60 Hz UK model: 230 - 240 V, 50 Hz EA model: 110 - 240 V, 50/60 Hz AUS model: 240 V, 50 Hz E33 model: 100 - 240 V, 50/60 Hz Hong Kong model: 220 V, 50/60 Hz Chinese, Argentine model: 220 V, 5

7、0 Hz Sony CPM-300P mount plate for use on car battery : 4.5V DC Dimensions (w/h/d) (without projecting parts and controls) Approx. 129 x 28 x 146 mm ( 51/8 x 11/8 x 53/4 in.) Mass (without rechargeable battery) Approx. 220 g (7.8 oz) Operating temperature 5C - 35C (41F - 95F) Supplied accessories Fo

8、r the area code of the model you purchased, check the upper left side of the bar code on the package. D-E440 Earphones (1) D-E441 AC power adaptor (1) Headphones (1)*1 Earphones (1)*2 AC plug adaptor (1)*3 *1Supplied with US model *2Not supplied with US model *3Supplied with E33, E13 and EA models P

9、hoto : D-E441 Continued on page 2 收音机爱 好者资料库 RadioFans.CN 2 Specifications . 1 1.SERVICING NOTES. 3 2.GENERAL. 4 3.DISASSEMBLY 3-1. Lid Assy, Upper . 5 3-2. Cabinet (Front) Assy, Cabinet (Rear) Assy, MD Assy. 5 3-3. Main Board. 6 4.SERVICE MODE. 7 5.ADJUSTMENTS. 8 6.DIAGRAMS 6-1. Explanation of IC T

10、erminals.11 6-2. Block Diagram. 13 6-3. Printed Wiring Boards . 16 6-4. Schematic Diagram. 19 7.EXPLODED VIEWS 7-1. Cabinet Section. 28 7-2. Optical Pick-up Section . 30 8.ELECTRICAL PARTS LIST. 31 ATTENTION AU COMPOSANT AYANT RAPPORT LA SCURIT! LES COMPOSANTS IDENTIFIS PAR UNE MARQUE ! SUR LES DIAG

11、RAMMES SCHMATIQUES ET LA LISTE DES PICES SONT CRITIQUES POUR LA SCURIT DE FONCTIONNEMENT. NE REMPLACER CES COMPOSANTS 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 ! OR DOTTED L

12、INE WITH MARK ! 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 PUBLISHED BY SONY. Flexible Circuit Board Repairing Keep the temperature of the soldering iron

13、around 270C during 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 the minu

14、s side of a tantalum capacitor may be damaged by heat. TABLE OF CONTENTS This Compact Disc player is classified as a CLASS 1 LASER product. The CLASS 1 LASER PRODUCT label is located on the bottom exterior. CAUTION Use of controls or adjustments or performance of procedures other than those specifie

15、d herein may result in hazardous radiation exposure. DANGER Invisible laser radiation when open and interlock failed or defeated. Avoid direct exposure to beam. D-E441SR AC power adaptor (1) Earphones (1) Active speaker system (1) D-E443 AC power adaptor (1) Earphones (1) Rechargeable battery (1) AC

16、 plug adaptor (1)* *Supplied with E33, E13 and EA models D-E445 AC power adaptor (1) Headphones with remote control (1) *1 Earphones with remote control (1) *2 Rechargeable battery (1) AC plug adaptor (1)*3 *1Supplied with US model *2Not supplied with US model *3Supplied with E13 model D-E446CK AC p

17、ower adaptor (1) Headphones (1) *1 Earphones (1) *2 Car battery cord (1) Car connecting pack (1) Velcro tape (2) Spare fuse (1) Spiral tube (1) AC plug adaptor (1)*3 *1Supplied with US model *2Not supplied with US model *3Supplied with E33, E13 and EA models D-E449CK AC power adaptor (1) Rechargeabl

18、e battery (1) Headphones with remote control (1) Car battery cord (1) Car connecting pack (1) Velcro tape (2) Spare fuse (1) Spiral tube (1) Design and specifications are subject to change without notice. 收音机爱 好者资料库 RadioFans.CN 3 The laser diode in the optical pick-up block may suffer electrostatic

19、 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 repair parts. The flexible board is easil

20、y 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, when checking the laser diode emission, observe from more than

21、 30cm away from the objective lens. Before Replacing the Optical pick-up Block Please be sure to check thoroughly the parameters as per the “Optical pick-up Block Checking Procedure” (Part No. : 9-960-027-11) issued separately before replacing the optical Pick-up block. Note and specifications requi

22、red to check are given below. FOK output : IC501 ! pin When checking FOK, remove the lead wire to disc motor. S curve P-to-P value : 1.20.3Vp-p IC501 # pin. (Connect pin ! of IC501 (TP880) and 3 of IC501 (GND) with a jumper wire). When checking S curve P-to-P value, remove the lead wire to disc moto

23、r. Adjusted part for focus gain adjustment : RV503 RF signal P-to-P value : 0.8 1.2Vp-p Traverse signal P-to-P value : 1.0 2.4Vp-p The repairing grating holder is impossible. Adjusted part for tracking gain adjustment : RV502 SECTION 1 SERVICING NOTES Precautions for Checking Emission of Laser Diode

24、 Laser light of the equipment is focused by the object 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 30cm apart from the object lens when you check the emission of laser diode. Laser Diode Checking Methods

25、During normal operation of the equipment, emission of the laser diode is prohibited unless the upper panel is closed while turning ON the S801 (push switch type). The following two checking methods for the laser diode are operable. Method-1 (In the service mode or normal operation) : Emission of the

26、 laser diode is visually checked. 1. Open the upper lid. 2. Push the S801 as shown in Fig. 1 . 3. Check the object lens for confirming normal emission of the laser diode. If not emitting, there is a trouble in the automatic power control circuit or the optical pick-up. During normal operation, the l

27、aser diode is turned ON about 2.5 seconds for focus searching. Fig. 2 Digital Voltmeter Connecting Location NOTES ON HANDLING THE OPTICAL PICK-UP BLOCK OR BASE UNIT Method-2 (In the service mode or normal operation) : Check the value of current flowing in the laser diode. 1. Remove the upper panel.

28、2. Read the current printed on the rear side of the optical pick-up. (Print on the rear side of the optical pick-up) 3. Connect a level meter as shown in Fig. 2 4. Press the key. Fig.1 Method to push S801 A C 2 2 1 1 3 9 7 year version month A : less than 48 mA current value date line No. shift No.

29、5. Calculate the current value by the reading of the digital voltmeter. Reading of the tester (V) 4.7 ( ) = current value (A) (Example) Reading of the digital voltmeter of 0.2256 V : 0.2256 V 4.7 = 0.048 (A) = 48 mA 6. Check that the current value is within the following range. +5 Current value of t

30、he label-11 mA(25C) Variation by temperature : 0.4mA / C Current increases with temperature increased. Current decreases with temperature decreased. If the current is more than the range above, there is a trouble in the automatic power control circuit or the laser diode is in deterioration. If less

31、than the range, a trouble exists in the automatic power control circuit or the optical pick-up. MAIN BOARD (Conductor side) S801 TP506 digital voltmeter TP547 收音机爱 好者资料库 RadioFans.CN 4 SECTION 2 GENERAL LOCATION AND FUNCTION OF CONTROLS Volume control RM-DM29 : (D-E445/E449CK) 1ESP (Electronic Shock

32、 Protection) button 2OPEN button 3DC IN 4.5V jack 4PLAY MODE button 5+ FF button 6LINE OUT jack 7p STOP button 8 Play/pause button 9OFF-RESUME-ON switch 02 /Remote jack !AVLS switch !VOLUME control !Sound switch != FR button !Information display panel !REPEAT/ENTER button !HOLD switch 1234578 90! 6

33、p HOLD* VOL (volume) Remote control Earphones ?= (AMS*/search) ?( (play) ?+ (AMS*/search) ?p (stop) ? *Automatic Music Sensor *When you are not using the remote control, slide HOLD in the direction of the arrow to prevent any accidental operation. To unlock, slide HOLD back. Note Use only the suppli

34、ed remote control. You cannot operate this player with the remote control supplied with other models. 5 SECTION 3 DISASSEMBLY Note : Follow the disassembly procedure in the numerical order given. 3-1. LID ASSY, UPPER 3-2. CABINET (FRONT) ASSY, CABINET (REAR) ASSY, MD ASSY Lid ASSY, Upper Cabinet (Fr

35、ont) ASSY Cabinet (Rear) ASSY, MD ASSY Set Main board Lid ASSY, Upper 2 1 OPEN 1 Screws (1.4x2.5) 1 Screw (1.4x2.5) ! CN501 4 Claw 4 Claw Claw 8 CN702 7 CN701 9 CN703 6 5 3 MD ASSY Cabinet (Front) ASSY Cabinet (Rear) ASSY 2 OPEN r The equipment can be removed using the following procedure. 6 3-3. MA

36、IN BOARD 1 Main board S804 S804 Knob (HOLD) Knob (RESUME) Cabinet (Rear) ASSY S803 S803 To install, position the knob and the switch respectively. Sometime the HOLD switch (S804) and RESUME switch (S803) will be broken. 7 SECTION 4 SERVICE MODE Step 3 (Resetting service mode ) 1. Be sure to disconne

37、ct the external power supply and remove the solder bridge at the TEST terminals connected in setting. 2. The set thus becomes available for normal operation. MAIN BOARD (Side A) Fig. 4 Location of test terminal Service Mode (service program) The equipment is provided with a service program built in

38、the mi- crocomputer, like conventional models. Service program operation methods are described in the following. Fig. 3 Layout of each key Step 1 (Service mode setting method) 1. Turn OFF the HOLD switch the external power supply discon- nected (power is not applied to the set). 2. Solder across the

39、 T802 (TEST) terminals (pin %, IC801 (TEST) is grounded). 3. Connect an external power supply. Thus, the set is switched to the service mode. Step 2 (Operation in the service mode ) 1. Once the service mode is effected, the LCD displays 5 indica- tions each of which is repeatedly displayed. However,

40、 the following operations can be activated even if LCD indication is effected. 2. By pressing the + or = key, the optical pick-up movable inwardly or outwardly. However, if this is activated, tracking servo and sled servo are turned OFF, so it can be turned ON by pressing the PLAY MODE key, if requi

41、red. 3. By pressing the REPEAT/ENTER key, the tracking gain-up mode becomes active. 4. By pressing the key, focus is turned ON from focus search- ing while entering CLV-S (pull-in mode). Without disc, focus searching is repeated continuously. 5. By pressing the PLAY MODE key, tracking servo, sled se

42、rvo and CLV-A (servo in PLAY) are turned ON. 6. When 4. and 5. are performed, playing begins. No muting is ON in the service mode. 7. By pressing the p key, all servos (focus tracking and sled) are turned OFF. However, the disc motor revolves for a while by inertia. HOLD OFF n ON Be sure to turn OFF

43、 the HOLD switch (if ON, pressing each key is deactivated) REPEAT/ENTER Tracking gain-up mode while pressing = (FR) The optical pick-up is moved inwardly + (FF) The optical pick-up is moved outwardly p (STOP) All servos are turned OFF (PLAY/PAUSE) FOCUS is turned ON to effect pull in mode PLAY MODE

44、Tracking servo and sled servo are turned ON p T802 (TEST) Normal mode : Open Test mode : Short 8 Focus Bias Check Condition : Hold the set in horizontal state. Procedure : MAIN BOARD (Side B) 1. Set the equipment to service mode stop state (See page 7). 2. Connect the oscilloscope between IC501 pin

45、(RF0) and # pin (VC) on the MAIN board. 3. Move the optical pick-up by Pressing the + and = keys. 4 Put the disc (YEDS-18). 5. Press the key. From focus searching, focus is turned ON while entering CLV drawing-in mode. Tracking and sled are turned OFF. 6. Press the PLAY MODE key. (Both tracking and

46、sled are turned ON). 7. Check the oscilloscope waveform is as shown below. A good eye pattern means that the diamond shape () in the cen- ter of the waveform can be clearly distinguished. RF Signal Reference Waveform (eye pattern) To watch the eye pattern, set the oscilloscope to AC range and increase the vertical sensitivity of the oscilloscope for easy watch- ing. 8. Stop removing of the motor by pressing the p key. 9. After the completion of adjustment, reset service mode. (See page 7 ) SECTION 5 ADJUSTMENTS ( ) CD SECTION Precautions for Adjustment 1. Before beginnin