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1. Leakage Current Test:
Plug the AC power cord directly into a 220V AC outlet. (Do not use an isolation transformer for this test)
Measure the current flowing from all exposed metal parts of the cabinet, including the rear cover, (handle bracket,
wooden cabinet, screw heads, video input terminal, control shaft, etc.) to the ground pin of an AC outlet or to a known
ground. (water-pipe, conduit, etc.)
This leakage test should be performed with the AC switch ON and repeated with the AC switch OFF. The measured
current must be less than 0.5 milliamp.
Any measurements not within the limits outlined above are indicative of a potential shock hazard and corrective
action must be taken before returning the instrument to the customer.
120V or 220V AC
Test Exposed
Outlet
Metal Surfaces
Color Display
Monitor
Leakage
Current
Insulating Table
Tester
(Parallel 0.154F 15000)
Reading should
not be above
0.5m Amp.
GH
( волат)
Ореп
= Connect to electrical ground
T at AC outlet or other known outlet
AC Leakage Test
2. Resistance Test:
less than 1.0 megohm or grater than 5.2 megohms. Any resistance value below or above this range indicates an
abnormality which requires corrective action.
Repeat the test with the AC switch in the OFF position.
3. Wire Routine:
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