Teac-DV-3000-Service-Manual-2电路原理图.pdf
《Teac-DV-3000-Service-Manual-2电路原理图.pdf》由会员分享,可在线阅读,更多相关《Teac-DV-3000-Service-Manual-2电路原理图.pdf(29页珍藏版)》请在收音机爱好者资料库上搜索。
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
- 配套讲稿:
如PPT文件的首页显示word图标,表示该PPT已包含配套word讲稿。双击word图标可打开word文档。
- 特殊限制:
部分文档作品中含有的国旗、国徽等图片,仅作为作品整体效果示例展示,禁止商用。设计者仅对作品中独创性部分享有著作权。
- 关 键 词:
- Teac DV 3000 Service Manual 电路 原理图