Philips 200P7ES/00 Service Manual

10 200P7 LCDGo to cover pageAll units that are returned for service or repair must pass theoriginal manufactures safety tests. Safety testing requires bothand testing.Hipot Ground ContinuityHI-POT TEST INSTRUCTION1.Application requirements2.1.1 All mains operated products must pass the Hi-Pot test asdescribed in this instruction.1.2 This test must be performed again after the covers havebeen refitted following the repair, inspection or modificationof the product.2.1 Connecting conditions2.1.1 The test specified must be applied between the parallel-blade plug of the mainscord and all accessible metalparts of the product.2.1.2 Before carrying out the test, reliable conductiveconnections must be ensured and thereafter bemaintained throughout the test period.2.1.3 The mains switch(es) must be in the "ON" position.2.2 Test RequirementsAll products should be HiPot and Ground Continuity tested asfollows:Test 2820VDC 1700VDC Test current:voltage (2000VAC) (1200VAC) 25A,ACTest time:Test time 3 seconds 1 second 3 seconds(min.)(min.) Resistancerequired:Trip set at 100 uA 5 mA <=0.09+Rohm,current for Max. R is the(Tester) limitation; set resistance ofat 0.1 uA for the mains cord.Min. LimitationRamp set at 2time seconds(Tester)Test methodCondition HiPot Test for HiPot Test for Ground Continuityproducts where products where Test requirementthe mains input the mains input isrange is Full 110V AC(USArange(or 220V type)AC)2.2.1 The minimum test duration for Quality Control Inspectormust be 1 minute.2.2.2 The test voltage must be maintained within the specifiedvoltage + 5%.2.2.3 There must be no breakdown during the test.2.2.4 The grounding blade or pin of mains plug must beconducted with accessible metal parts.3. Equipments and Connection3.1. EquipmentsFor example :- ChenHwa 9032 PROGRAMMABLE AUTO SAFETYTESTER- ChenHwa 510B Digital Grounding Continuity Tester- ChenHwa 901 (AC Hi-pot test), 902 (AC, DC Hi-pot test)Withstanding Tester3.2. Connection4. RecordingHipot and Ground Continuity testing records have to be keptfor a period of 10 years.* Turn on the power switch of monitor before Hipot andGround Continuity testing.Connect the "video cable"or "grounding screw"to the CLIP on your tester.Video cable(Rear view of monitor)Connect the power cordto the monitor.Grounding screwPower outlet(ChenHwa 9032 tester)ClipClip