Teac-DV-4000-Service-Manual电路原理图.pdf

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1、MODEL DV-4000 CAUTION : Before servicing this chassis, read the PRODUCT SAFETY SERVICE FOR VIDEO PRODUCTS section on page 2 of this manual. DVD and CD PLAYER SPECIFICATIONS CONTENTS DVD VIDEO PLAYER Signal system Laser Frequency response Signal/Noise ratio Audio distortion+noise GENERAL Power supply

2、 Power consumption Dimensions Weight Channel separation OUTPUTS Video outputs S-video outputs Audio outputs (digital audio) Audio outputs (analog audio) Dynamic range PAL/AUTO/NTSC wavelength 650nm 20Hz to 20kHz 85dB -80dB(1kHz) 70dB(1kHz) 85dB(1kHz) 1.0V(p-p), 75ohm, negative sync. (Y)1.0V(p-p), (C

3、)0.286V(p-p) 75ohm, negative sync. 0.5V(p-p), 75ohm 2.0Vrams(1KHz,0.8dB), 10Kohm AC240V, 50Hz 20W 435 x 335 x 105 (mm) Around 5kgs SERVICE PRECAUTIONS . . . . . . . . . . . . . . . . . . . . . . . 2-3 LOCATION OF CONTROLS . . . . . . . . . . . . . . . . . . . . . . 4-6 ELECTRICAL TROUBLE SHOOTING GU

4、IDE . . . . . . . 8-18 PRINTED CIRCUIT . . . . . . . . . . . . . . . . . . . . . . . . . . . 20-25 EXPLODED VIEW/PARTS LIST(CABINET) . . . . . . . . . . 26 BLOCK DIAGRAMS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7 REPLACEMENT PARTS LIST . . . . . . . . . . . . . . . . . . 28-29 SE

5、RVICE MANUAL 3DISC POWER ON/STANDBY DVD PLAYER DV-4000 12345+5 STANDBY DVD/VCD PLAYER R PLAYPAUSESTOP DISC EXCHANGE DISC SKIP SEARCH OPEN/CLOSE RETURNREPEAT 123 MIC LEVEL - + - + ECHOMIC 12 Digital KaraokePAL/NTSC RadioFans.CN 收音机爱 好者资料库 CAUTION: DO NOT ATTEMPT TO MODIFY THIS PRODUCT IN ANY WA Y AND

6、 NEVER PERFORM CUSTOMIZED INSTALLATIONS WITHOUT MANUFACTURERS APPROVAL. UNAUTHORIZED MODIFICATIONS WILL NOT ONLY VOID THE WARRANTY , BUT MAY LEAD TO YOUR BEING LIABLE FOR ANY RESULTING PROPERTY DAMAGE OR USER INJURY . SERVICE WORK SHOULD BE PERFORMED ONLY AFTER YOU ARE THOROUGHLY FAMILIAR WITH ALL O

7、F THE FOLLOWING SAFETY CHECKS AND SERVICING GUIDELINES. TO DO OTHERWISE, INCREASES THE RISK OF POTENTIAL HAZARDS AND INJURY TO THE USER. WHILE SERVICING, USE AN ISOLATION TRANSFORMER FOR PROTECTION FROM A.C. LINE SHOCK. SAFETY CHECKS AFTER THE ORIGINAL SERVICE PROBLEM HAS BEEN CORRECTED, A CHECK SHO

8、ULD BE MADE OF THE FOLLOWING. SUBJECT: FIRE CONNECT A 1500 OHMS 10 WATT RESISTOR, PARALLELED BY A.15 MFD. 150V A.C. TYPE CAPACITOR BETWEEN A KNOWN GOOD EARTH GROUND (WATER PIPE, CONDUIT , ETC.) AND THE EXPOSED METALLIC PARTS, ONE AT A TIME. MEASURE THE A.C. VOLTAGE ACROSS THE COMBINATION OF 1500 OHM

9、 RESISTOR AND 15 MFD CAPACITOR. REVERSE THE A.C. PLUG AND REPEAT A.C. ANY VOLTAGE MEASUREMENTS FOR EACH EXPOSED METALLIC PART. VOLTAGE MEASURED MUST NOT EXCEED 75 VOLTS R.M.S. THIS CORRESPONDS TO 0.5 MILLIAMP A.C. ANY VALUE EXCEEDING THIS LIMIT CONSTITUTES A POTENTIAL SHOCK HAZARD AND MUST BE CORREC

10、TED IMMEDIATELY . SUBJECT GRAPHIC SYMBOLS THE LIGHTNING FLASH WITH APROWHEAD SYMBOL. WITHIN AN EQUILATERAL TRIANGLE, IS INTENDED TO ALERT THE SERVICE PERSONNEL TO THE PRESENCE OF UNINSULATED DANGEROUS VOLTAGE THA T MAY BE OF SUFFICIENT MAGNITUDE TO CONSTITUTE A RISK OF ELECTRIC SHOCK. THE EXCLAMATIO

11、N POINT WITHIN AN EQUILATERAL TRIANGLE IS INTENDED TO ALERT THE SERVICE PERSONNEL TO THE PRESENCE OF IMPORTANT SAFETY INFORMATION IN SERVICE LITERATURE. PLACE THIS PROBE ON EACH EXPOSED METAL PART SUBJECT: X-RADIATION 1. BE SURE PROCEDURES AND INSTRUCTIONS TO ALL SERVICE PERSONNEL COVER THE SUBJECT

12、OF 2. ONLY FACTORY SPECIFIED C.R.T ANODE CONNECTORS MUST BE USED. DEGAUSSING SHIELDS ALSO SERVE AS AN X-RAY SHIELD IN COLOR SETS, ALWAYS RE-INSTALL THEM. 3. IT IS ESSENTIAL THAT SERVICE PERSONNEL HAVE AVAILABLE AN ACCURATE AND RELIABLE HIGH VOLT AGE METER. THE CALIBRATION OF THE METER SHOULD BE CHEC

13、KED PERIODICALLY AGAINST A REFERENCE STANDARD, SUCH AS THE ONE AVAILABLE AT YOUR DISTRIBUTOR. 4. WHEN THE HIGH VOLTAGE CIRCUITRY IS OPERATING PROPERL Y, THERE IS NO POSSIBILITY OF AN 5. WHEN TROUBLESHOOTING AND MAKING TEST MEASUREMENTS IN A PRODUCT WITH A PROBLEM OF EXCESSIVE HIGH VOLTAGE A VOID BEI

14、NG UNNECESSARILY CLOSE TO THE PICTURE TUBE AND THE HIGH VOLTAGE SUPPLY DO NOT OPERATE THE PRODUCT LONGER THAN IT IS NECESSARY TO LOCATE THE CAUSE OF EXCESSIVE VOLTAGE. 6. REFER TO HV. B+ AND SHUTDOWN ADJUSTMENT PROCEDURES DESCRIBED IN THE APPROPRIATE SCHEMATIC AND DIAGRAMS(WHERE USED). SUBJECT: IMPL

15、OSION 1. ALL DIRECT VIEWED PICTURE TUBES ARE EQUIPPED WITH AN INTEGRAL IMPLOSION PROTECTION SYSTEM, BUT CARE SHOULD BE TAKEN TO AVOID DAMAGE DURING INSTALLA TION, AVOID SCRATCHING THE TUBE. IF SCRATCHED REPLACE IT. 2. USE ONLY RECOMMENDED FACTORY REPLACEMENT TUBES. SUBJECT: TIPS ON PROPER INSTALLATI

16、ON 1. NEVER INSTALL ANY PRODUCT IN A CLOSED-IN RECESS. CUBBYHOLE OR CLOSELY FITTING SHELF SPACE, OVER OR CLOSE TO HEAT DUCT , OR IN THE PATH OF HEA TED AIR FLOW. 2. AVOID CONDITIONS OF HIGH HUMIDITY SUCH AS: OUTDOOR PA TIO INSTALLATIONS WHERE DEW IS A F ACTOR, NEAR STEAM RADIATORS WHERE STEAM LEAKAG

17、E IS A FACTOR, ETC. 3. AVOID PLACEMENT WHERE DRAPERIES MAY OBSTRUCT REAR VENTING. THE CUSTOMER SHOULD ALSO AVOID THE USE OF DECORATIVE SCARVES OR OTHER COVERINGS WHICH MIGHT OBSTRUCT VENTILATION. 4. WALL AND SHELF MOUNTED INSTALLATIONS USING A COMMERCIAL MOUNTING KIT, MUST FOLLOW THE FACTORY APPROVE

18、D MOUNTING INSTRUCTIONS. A PRODUCT MOUNTED TO A SHELF OR PLATFORM MUST RETAIN ITS ORIGINAL FEET (OR THE EQUIVALENT THICKNESS IN SPACERS) TO PROVIDE ADEQUATE AIR FLOW ACROSS THE BOTTOM. BOLTS OR SCREWS USED FOR FASTENERS MUST NOT TOUCH ANY PARTS OR WIRING. PERFORM LEAKAGE TEST ON CUSTOMIZED INSTALLAT

19、IONS. 5. CAUTION CUSTOMERS AGAINST THE MOUNTING OF A PRODUCT ON SLOPING SHELF OR A TILTED POSITION, UNLESS THE PRODUCT IS PROPERLY SECURED. 6. A PRODUCT ON A ROLL-ABOUT CART SHOULD BE STABLE ON ITS MOUNTING TO THE CART CAUTION THE CUSTOMER ON THE HAZARDS OF TRYING TO ROLL A CART WITH SMALL CASTERS A

20、CROSS THRESHOLDS OR DEEP PILE CARPETS. 7. CAUTION CUSTOMERS AGAINST THE USE OF A CART OR STAND WHICH HAS NOT BEEN LISTED BY UNDERWRITERS LABORATORIES, INC. FOR USE WITH THEIR SPECIFIC MODEL OF TELEVISION RECEIVER OR GENERICALLY APPROVED FOR USE WITH TVS OF THE SAME OR LARGER SCREEN SIZE. 8. CAUTION

21、CUSTOMERS AGAINST THE USE OF EXTENSION CORDS. EXPLAIN THAT A FOREST OF EXTENSIONS SPROUTING FROM A SINGLE OUTLET CAN LEAD TO DISASTROUS CONSEQUENCES TO HOME AND FAMILY. X-RADIATION. THE ONLY POTENTIAL SOURCE OF X-RAYS IN CURRENT T.V. RECEIVERS IS THE PICTURE TUBE. HOWEVER, THIS TUBE DOES NOT EMIT X-

22、RYS WHEN THE HIGH VOLTAGE IS AT THE FACTORY SPECIFIED LEVEL. THE PROPER VALUE IS GIVEN IN THE APPLICABLE SCHEMATIC. OPERATION A T HIGHER VOLTAGES MA Y CAUSE A FAILURE OF THE PICTURE TUBE OR HIGH VOLT AGE SUPPLY AND, UNDER CERTAIN CIRCUMSTANCES, MAY PRODUCE RADIATION IN EXCESS OF DESIRABLE LEVELS. X-

23、RADIATION PROBLEM. EVERY TIME A COLOR CHASSIS IS SERVICED, THE BRIGHTNESS SHOULD BE RUN UP AND DOWN WHILE MONITORING THE HIGH VOLTAGE WITH A METER TO BE CERTAIN THAT THE HIGH VOLTAGE DOES NOT EXCEED THE SPECIFIED VALUE AND THAT IT IS REGULATING CORRECTLY . WE SUGGEST THAT YOU AND YOUR SERVICE ORGANI

24、ZATION REVIEW TEST PROCEDURES SO THAT VOLTAGE REGULATION IS ALWAYS CHECKED AS A STANDARD SERVICING PROCEDURE AND THAT THE HIGH VOLTAGE READING BE RECORDED ON EACH CUSTOMERS INVOICE. PRODUCT SAFETY SERVICING GUIDELINES FOR VIDEO PRODUCTS GOOD EARTH GROUND SUCH AS THE WATER PIPE, CONDUIT, ETC. 2 Radio

25、Fans.CN 收音机爱 好者资料库 3 CAUTION : Before servicing the DVD covered by this service data and its supplements and ADDENDUMS, read and follow the SAFETY PRECAUTIONS NOTE : if unforeseen circumstances create conflict between the following servicing precautions and any of the safety precautions in this publ

26、ications, always follow the safety precautions. Remember Safety First: General Servicing Precautions 1. Always unplug the DVD AC power cord from the AC power source before: (1) Removing or reinstalling any component, circuit board, module, or any other assembly. (2) Disconnection or reconnecting any

27、 internal electrical plug or other electrical connection. (3) Connecting a test substitute in parallel with an electrolytic capacitor Caution : A wrong part substitution or incorrect polarity installation of electrolytic capacitors may result in an explosion hazard. 2. Do not spray chemicals on or n

28、ear this DVD or any of its assemblies. 3. Unless specified otherwise in this service data, clean electrical contacts by applying an appropriate contact cleaning solution to the contacts with a pipe cleaner, cotton-tipped swab, or comparable soft applicator. Unless specified otherwise in this service

29、 data, lubrication of contacts is not required. 4. Do not defeat any plug/socket B+ voltage interlocks with witch instruments covered by this service manual might be equipped. 5. Do not apply AC power to this DVD and/or any of its electrical assemblies unless all solid-state device heat sinks are co

30、rrectly installed. 6. Always connect test instrument ground lead to the appropriate ground before connection the test instrument positive lead. Always remove the test instrument ground lead last. Insulation Checking Procedure Disconnect the attachment plug trom the AC outlet and turn the power on. C

31、onnect an insulation resistance meter(500V) to the blades of the attachment plug. The insulation resistance between each blade of the attachment plug and accessible conductive parts (Note 1) should be more than 1M ohm. Note 1 : Accessible Conductive Parts including Metal panels, input terminals, Ear

32、phone jacks, etc. Electrostatically Sensitive (ES) Devices Some semiconductor (solid state) devices can be damaged easily by static electricity. Such components commonly are called Electrostatically Sensitive (ES) Devices. Examples of typical ES devices are integrated circuits and some field effect

33、transistors and semiconductor chip components. The following techniques should be used to help reduce the incidence of component damage caused by static electricity. 1. Immediately before handling any semiconductor component or semiconductor-equipped assembly, drain off any electrostatic charge on y

34、our body by touching a known earth ground. Alternatively, obtain and wear a commercially available discharging wrist strap device, which should be removed for potential shock reasons prior to applying power to the unit under test. 2. After removing an electrical assembly equipped with ES devices, pl

35、ace the assembly on a conductive surface such as aluminum toil, to prevent electrostatic charge buildup or exposure of the assembly. 3. Use only a GROUNDED-tip soldering iron to solder or unsolder ES devices. 4. Use only an anti-static solder removal device. Some solder removal devices not classifie

36、d a anti-static can generate electrical charges sufficient to damage ES devices. 5. Do not use freon-propelled chemicals. These can generate electrical charge sufficient to damage ES devices. 6. Do not remove a replacement ES device from its protective package until immediately before you are ready

37、to install it. (Most replacement ES devices are packaged with leads electrically shorted together by conductive foam, aluminum foil, or comparable conductive material.) 7. Immediately before removing the protective material from the leads of a replacement ES device, touch the protective material to

38、the chassis or circuit assembly into which the device will be installed. Caution : Be sure no power is applied to the chassis or circuit, and observe all other safety precautions. 8. Minimize bodily motions when handling unpackaged replacement ES devices. (Normally harmless motion such as the brushi

39、ng together of your clothes fabric or the lifting of your foot from a carpeted floor can generate static electricity sufficient to damage an ES device.) SERVICING PRECAUTIONS 12347910 86 201918171514 1311 5 1. POWER 2. NUMBER BUTTONS 3. REMOTE SENSOR 4. DISPLAY 5. PLAY 6. PAUSE 7. STOP 8. DISC EXCHA

40、NGE 9. DISC SKIP 10. OPEN/CLOSE 11. SEARCH 12. DISC1, 2, 3 13. REPEAT 14. RETURN 15. PREVIOUS/NEXT 16. DISC TRAY 17. ECHO 18. MIC LEVEL 19. MIC 2 20. MIC 1 3DISC POWER ON/STANDBY DVD PLAYER DV-4000 12345+5 STANDBY DVD/VCD PLAYER R PLAYPAUSESTOP DISC EXCHANGE DISC SKIP SEARCH OPEN/CLOSE RETURNREPEAT

41、123 MIC LEVEL - + - + ECHOMIC 12 Digital KaraokePAL/NTSC 1216 PREPARATIONS BEFORE OPERATION FRONT PANEL 4 VCD TITLE PBC CHP/TRK REMAIN PROGRAM MINSEC REPEAT ONE ALL A B 1/2 2/3 D1 RESUME 1 5 9 13 2 6 10 14 3 7 11 15 4 8 12 16 DIGITAL Play indicator Pause indicatorTitle indicator Remain indicator Cha

42、pter/track indicator Lock indicator Program indicator Angel indicator Dolby Digital indicator Repeat play indicator Track calender DVD indicatorTitle/chapter/track indicator Minute indicator Second indicator Resume indicator Disc recording format Hour indicator VCD and CD indicator PBC indicator OPT

43、ICAL COAXIAL S-VIDEO RL2 1 1 2 AUDIO OUT VIDEO OUT DIGITALAUDIO OUT DISPLAY REAR PANEL Push DIMMER , the brightness of the display is reduced by half, push it once more, the display becomes dark. Push the button again, the display resumes brightness. 123 45 6 789 10 1 AUDIO OUT1 R 2 AUDIO OUT1 L 3 V

44、IDEO OUT1 4 AUDIO OUT2 R 5 AUDIO OUT2 L 6 VIDEO OUT2 POWER SUPPLY CORD 7 S-VIDEO 8 OPTICAL 9 COAXIAL 10 5 OSDDIMMERDISC SKIP 123PLAY MODE 456DIGEST 789TIME SEARCH 10/0+10REMAIN RESUME FRFFSLOWZOOM SETUPTITLEMENUII/STEP RETURN A-BREPEATSYSTEM SUBTITLE AUDIO MODE - VOLUME + KEY CONTROL# REMO TE CON TR

45、OL UNIT NAME AND LAYOUT OF REMOTE CONTROLS 1. OSD 2. DIMMER 3. NUMBER BUTTONS 4. SEARCH 5. SET UP 6. TITLE 7. DIRECTIONS 8. PLAY(ENTER) 9. PREVIOUS 10. SYSTEM 11. STOP 12. KEY CONTROL 13. VOLUME +/- 14. LANGUAGE 15. MUTE 16. SUBTITLE 17. AUDIO MODE 18. A-B REPEAT 19. REPEAT 20. RETURN 21. NEXT 22. M

46、ENU 23. PAUSE/STEP 24. SLOW PLAY 25. ZOOM 26. REMAIN 27. RESUME 28. TIME SEARCH 29. DIGEST 30. PLAY MODE 31. ANGLE 32. DISC SKIP 33. REMOTE TRANSMITTER 2 1 3 4 5 6 7 8 9 10 12 13 14 16 18 22 24 26 32 31 30 29 28 27 25 23 20 19 17 15 11 21 33 6 12V POWER 5V 12V 8V Vcc 3.6V GND GND GND 24V 3.5V VGND 1

47、2V GND SPDIF 5V ZERO AGD CEN R-S AGD AGND WOOF AGD L-S AGD L AGD G/CVBS1 VGND CVBS2 BLUE/AGND LUMA RED/AGND CHROMA SERVO & TRAY DRIVER BA5954 & BA6208 RF AMP D1890 SERVO & DVD PROCESSOR D1870 CPU D1850 HC04 16M SDRAM* 2 AUDIO DAC PCM1723/PCM1720 4M ROM 29F040 EEPROM 24C01 33.868MHz 27MHz ATAPI INTER

48、FACE XS106 TO POWER SUPPLY BOARD TO PICK UP MECHANISM CHASSIS XS100 XS109 TO OUTPUT BOARD 3.5V R CONTROL BUS 4M DRAM AUDIO DATA 27MHz F+ F- T+ T- NC NC RF A B VC C D NC NC VCC GND NC LD GND MD VR NC VC VR MD C E A GND LD B F VCC LOAD NC GND UNLOD POWER LIM OPEN 12V GND VCC CLOSE 24V SP+ GND 3.5V 3.5

49、V GND FCLK FCS FDATA RMC SP- TO KEY BOARD TO PICK UP MECHANISM CHASSIS XS102 XS107 XS103 SLED- SLED+ NC OVERALL BLOCK DIAGRAM 7 VIDEO ENCODER CS4955/BT865 MPEG-2 DECODER VS2811EVS3811 /UPD3801-2811 Connection of the unit is correct. Is fluoresce display correct? Is power normal? Is open/close normal? Can disc be read? Is video normal? Is audio normal? Normal operation. Setting of the unit is correct Refer to audio .guide Refer to video .guide Refer to read disc .guide Refer to open/close .guide Refer to display .guide Re