Teac-DV-3000-Service-Manual-2电路原理图.pdf

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1、MODEL DV-3000 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) 90dB(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 AC120V, 60Hz 20W 435 x 95 x 280 (mm) Around 4kgs SERVICE PRECAUTIONS . . . . . . . . . . . . . . . . . . . . . . . 2-3 LOCATION OF CONTROLS . . . . . . . . . . . . . . . . . . . . . . 4-6 ELECTRICAL TROUBLE SHOOTING GUI

4、DE . . . . . . . 8-18 PRINTED CIRCUIT . . . . . . . . . . . . . . . . . . . . . . . . . . . 20-25 EXPLODED VIEW/PARTS LIST(CABINET) . . . . . . . . . . 26 BLOCK DIAGRAMS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7 REPLACEMENT PARTS LIST . . . . . . . . . . . . . . . . . . 28-31 SER

5、VICE MANUAL (For USA 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 RESISTOR AND 15 MFD CA

6、PACITOR. 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 CORRECTED IMMEDIATELY . SUBJE

7、CT 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 EXCLAMATION POINT WITHIN AN EQUIL

8、ATERAL 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 OF 2. ONLY FACTORY SPEC

9、IFIED 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 CHECKED PERIODICALLY AGAINS

10、T 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 BEING UNNECESSARILY CLOSE

11、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: IMPLOSION 1. ALL DIRECT VIE

12、WED 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 INSTALLATION 1. NEVER INSTALL ANY

13、 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 LEAKAGE IS A FACTOR, ETC. 3.

14、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 APPROVED MOUNTING INSTRUCTIONS

15、. 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 INSTALLATIONS. 5. CAUTION CUSTOM

16、ERS 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 ACROSS THRESHOLDS OR DEE

17、P 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 CUSTOMERS AGAINST THE U

18、SE 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-RYS WHEN THE HIGH VOLTA

19、GE 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-RADIATION PROBLEM. EVER

20、Y 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 ORGANIZATION REVIEW TEST PROC

21、EDURES 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 RadioFans.CN 收音机爱 好者资料库 3 CA

22、UTION : 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 publications, always follow

23、 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 internal electrical pl

24、ug 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 near this DVD or any of

25、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 data, lubrication of c

26、ontacts 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 correctly installed. 6. A

27、lways 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. Connect an insulation re

28、sistance 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, Earphone jacks, etc. Elect

29、rostatically 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 transistors and semicon

30、ductor 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 your body by touching a

31、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, place the assembly on a c

32、onductive 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 classified a anti-static can gen

33、erate 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 to install it. (Most re

34、placement 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 the chassis or circuit

35、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 brushing together of your clo

36、thes fabric or the lifting of your foot from a carpeted floor can generate static electricity sufficient to damage an ES device.) SERVICING PRECAUTIONS 1. POWER 2. STANDBY INDICATOR 3. DISC TRAY 4. OPEN/CLOSE 5. PAUSE/STEP 6. PLAY 7. STOP 8. PREVIOUS/NEXT 9. SEARCH 10. REMOTE SENSOR 11. DISPLAY 12.

37、PHONES LEVEL 13. PHONES JACK PREPARATIONS BEFORE OPERATION FRONT PANEL 4 SEARCH REMOTE SENSOR DV-3000 DVD Player POWER STANDBY/ON PHONES MINMAX DVD/VCD/CD OPEN/CLOSE PREVIOUSNEXT STOPPLAYPAUSE/STEP CD-R/CD-RW COMPATIBLE 12348765 911101213 VCD TITLE PBC CHP/TRK REMAIN PROGRAM MINSEC REPEAT ONE ALL A

38、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 Chapter/track indicator Lock indicator Program indicator Angel indicator Dolby Digital indicator Repeat play indicator Track calender DVD indicatorTitle/chapter/track ind

39、icator Minute indicator Second indicator Resume indicator Disc recording format Hour indicator VCD and CD indicator PBC indicator OPTICAL 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 mor

40、e, the display becomes dark. Push the button again, the display resumes brightness. 123 45 6 789 1 AUDIO OUT1 R 2 AUDIO OUT1 L 3 VIDEO OUT1 4 AUDIO OUT2 R 5 AUDIO OUT2 L 6 VIDEO OUT211 POWER SUPPLY CORD 7 S-VIDEO OUT 8 DIGITAL OUT(OPTICAL) 9 DIGITAL OUT(COAXIAL) 10 COMPONENT VIDEO (Color Difference

41、Output) 5 10 11 COMPONENT VIDEO OUT Y CB CR OSDDIMMER 123PLAY MODE 456DIGEST 789TIME SEARCH 10/0+10REMAINLAST MEMORY PAUSE STEP ZOOM SETUPTITLEMENU OPEN/ CLOSE RETURN A-BREPEAT SUBTITLE TV SYSTEM - OUTPUT + NAMES AND LAYOUT OF REMOTE CONTROLS 1. OSD 2. DIMMER 3. NUMBER BUTTONS 4. SEARCH 5. SET UP 6.

42、 TITLE 7. PLAY 8. PREVIOUS/NEXT 9. STOP 10. DIRECTIONS 11. TV SYSTEM 12. LANGUAGE 13. OUTPUT 14. MUTING 15. SUBTITLE 16. MONO/STEREO 17. A-B REPEAT 18. REPEAT 19. RETURN 20. MENU 21. PAUSE/STEP 22. SLOW 23. ZOOM 24. REMAIN 25. LAST MEMORY 26. TIME SEARCH 27. DIGEST 28. PLAY MODE 29. ANGLE 30. OPEN/C

43、LOSE 31. REMOTE TRANSMITTER 32. POWER 2 1 3 4 5 6 7 8 9 10 12 13 16 17 20 21 24 32 29 28 27 26 25 23 30 19 18 11 14 22 31 6 ANGLE POWER STANDBY SEARCH PLAY PREVNEXT STOP SLOW MONO/ STEREO MUTING15 12V POWER 5V 12V 8V Vcc 3.6V GND GND GND 24V 3.5V VGND 12V GND SPDIF 5V ZERO AGD CEN R-S AGD AGND WOOF

44、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 INTERFACE XS106 TO POWER SUPPLY BOARD TO PICK UP MEC

45、HANISM 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 3.5V GND FCLK FCS FDATA RMC SP- TO KEY BOARD TO PI

46、CK 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 n

47、ormal? 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 Refer to power guide. Electrical Trouble Shooting Guide Yes Yes Yes Yes Yes Yes No No No No No No 8 F301 is open. XP301 is

48、open. XP302 is open. Power cord isnt inserted firmly or power cord is open. START Normal Is C328 AC 220V? Is C301 DC 310V? Is XP303 normal? Check if transformer is damaged. Check secondary commute circuit. Check secondary feedback circuit. Check if secondary short. Check V304. Replace N301. Are tran

49、sformer secondary 6V, 15V output? Are 2,3 pin of N301 resistance high impedance? Check regulated circuit. Check N302 and peripheral components. Yes Yes Yes Yes Yes No No No No No A Power Circuit abnormal Check commute circuit. Check L301 and L302. 9 START Normal Does the screen appear? Is display normal? Check if voltage of screen F1 and F2 is 3.3V. Check if voltage of 34 pin of UPD16311 is -24V. Check grounded negative voltage of screen F1 and F2. Replace UPD16311. Check if connection cord between screen and main