Samsung Precautions free download

File name Precautions.pdf

Precautions 1. Precautions Follow these safety, servicing and ESD precautions to prevent damage and protect against potential hazards such as electrical shock and X-rays. 1-1 Safety Precautions 1. Be sure that all of the built-in protective devices are replaced. Restore any missing (READING SHOULD protective shields. LEAKAGE NOT BE ABOVE DEVICE CURRENT 0.5mA) UNDER TESTER 2. When reinstalling the chassis and its TEST TEST ALL assemblies, be sure to restore all protective EXPOSED METAL devices, including: nonmetallic control knobs SURFACES and compartment covers. 2-WIRE CORD ALSO TEST WITH 3. Make sure that there are no cabinet openings PLUG REVERSED (USING AC ADAPTER EARTH through which people--particularly PLUG AS REQUIRED) GROUND children--might insert fingers and contact dangerous voltages. Such openings include Fig. 1-1 AC Leakage Test the spacing between fornt cabinet and back cabinet, excessively wide cabinet 6. Antenna Cold Check: ventilation slots, and improperly fitted back With the unit's AC plug disconnected from the covers. AC source, connect an electrical jumper across the two AC prongs. Connect one lead of the 4. Leakage Current Hot Check (Figure 1-1): ohmmeter to an AC prong. Connect the other Warning: Do not use an isolation lead to the coaxial connector. transformer during this test. Use a leakage- current tester or a metering system that 7. High Voltage Limits: complies with American National Standards High voltage must be measured each time ser- Institute (ANSI C101.1, Leakage Current for vicing is