20HLV16 - diagramas.diagram...

IMPORTANT SERVICE SAFETY INFORMATIONSafety precautions to be followed during servicing:1. Parts marked with an are critical parts for safety. Replace only with the one described in the partslist.2. Before returning the DVD product to the customer, make the appropriate leakage current check orresistance measurements to ensure that exposed parts are properly insulated from the supply circuit.A leakage current check is recommended for this unit. Plug the AC line cord directly into a 120V 60Hz ACoutlet (do not use an isolation transformer for this check). Use a leakage current tester (Fig. 1) or ametering system which complies with Underwriters Laboratories (UL 1492P). Measure for current from allexposed metal parts of the cabinet to a known earth ground: particularly, any exposed metal part having areturn path to the chassis. Any current measured must not exceed 0.5mA. Any measurement not withinthe limits outlined above are indicative of a potential shock hazard and corrective action must be takenbefore returning the unit to the customer.PRODUCT UNDER TEST1.5K ohm0.15 µF(Reading should not be above 0.5mA)Leakage Current Tester2-Blade polarizedtype cord setTest all exposedmetal surfacesTEST PROBEKNOWN EARTHGROUNDFig. 1 AC Leakage TestA1-2