Samsung SCD303 free download

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DIGITAL VIDEO CAMCORDER Chassis : Theta II SCD303 NTSC SERVICE MANUAL SERVICE DIGITAL VIDEO CAMCORDER Manual CONTENTS 1. Precautions 2. Alignment and Adjustments 3. Exploded View and Parts List 4. Electrical Parts List 5. Block Diagram 6. PCB Diagrams 7. Schematic Diagrams If you want to know additional information which is not included on this Service Manual, please refer to the SCD303 Training Manual (AD82-00039A). ELECTRONICS SCD303 This Service Manual is a property of Samsung Electronics Co .,Ltd. Any unauthorized use of Manual can be punished under applicable International and/or domestic law. © Samsung Electronics Co., Ltd. MAR. 2004 Printed in Korea AD82-00040A 1. Precautions 1. Be sure that all of the built-in protective devices are replaced. Restore any missing protective shields. 2. When reinstalling the chassis and its assemblies, be sure to restore all protective devices, including : control knobs and compartment covers. 3. Make sure that there are no cabinet openings through which people--particularly children --might insert fingers and contact dangerous voltages. Such openings include the spacing between the picture tube and the cabinet mask, excessively wide cabinet ventilation slots, and improperly fitted back covers. If the measured resistance is less than 1.0 megohm or greater than 5.2 megohms, an abnormality exists that must be corrected before the unit is returned to the customer. 4. Leakage Current Hot Check (See Fig. 1-1) : Warning : Do not use an isolation transformer during this test. Use a leakage current tester or a metering system that complies with American National Standards Institute (ANSI C101.1, Leakage Current for Appliances), and Underwriters Laboratories (UL Publication UL1410, 59.7). 5. With the unit completely reassembled, plug the AC line cord directly the power outlet. With the unit's AC switch first in the ON position and then OFF, measure the current between a known earth ground (metal water pipe, conduit, etc.) and all exposed metal parts, including : antennas, handle brackets, metal cabinets, screwheads and control shafts. The current measured should not exceed 0.5 milliamp. Reverse the power-plug prongs in the AC outlet and repeat the test. 6. X-ray Limits : The picture tube is designed to prohibit X-ray emissions. To ensure continued X-ray protection, replace the picture tube only with one that is the same type as the original. DEVICE UNDER TEST TEST ALL EXPOSED METER SURFACES 2-WIRE CORD ALSO TEST WITH PLUG REVERSED (USING AC ADAPTER PLUG AS REQUIRED) EARTH GROUND LEAKAGE CURRENT TESTER (READING SHOULD NOT BE ABOVE 0.5mA) Fig. 1-1 AC Leakage Test 7. Antenna Cold Check : With the unit's AC plug disconnected from the AC source, connect an electrical jumper across the two AC prongs. Connect one lead of the ohmmeter to an AC prong. Connect the other lead to the coaxial connector. 8. High Voltage Limit : High voltage must be measured each time servicing is done on the B+, horizontal deflection o