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LEAKAGE CURRENT HOT CHECK
(See figure 1.)
1. Plug the AC cord directly into the AC outlet. Do not use an isolation transformer for this
check.
2. Connect a 1.5K ohm, 10 watts resistor, in parallel with a 0.15 microfarad capacitor, between
each exposed metallic part on the set and a good earth ground, as shown in figure 1.
3. Use an AC voltmeter, with 1000 ohms/volt or more sensitivity, to measure the potential across
the resistor.
4. Check each exposed metallic part, and measure the voltage at each point.
5. Reverse the AC plug in the AC outlet and repeat each of the above measurements.
6. The potential at any point should not exceed 0.75 volts RMS. A leakage current tester
(Simpson Model 229 or equivalent) may be used to make the hot checks. Leakage current must
not exceed 1/2 milliamp. In case a measurement is outsideof the limits specified, there is a
possibility of a shock hazard, and the equipment should be repaired and rechecked before it is
returned to the customer.
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Summary of Contents for Omnivision PV-9661
Page 272: ...5 2 MECHANISM SECTION 5 2 1 Disassembly Method Fig J1 1 23 PV 9661 PV 9662...
Page 273: ...5 2 2 EJECT Position Confirmation Fig J1 2 24 PV 9661 PV 9662...
Page 284: ...6 ADJUSTMENT PROCEDURES 6 1 SERVICE FIXTURES AND TOOLS 35 PV 9661 PV 9662...
Page 291: ...6 4 TEST POINTS AND CONTROL LOCATION 42 PV 9661 PV 9662...
Page 311: ...PV 9661 PV 9662 62...
Page 330: ...10 EXPLODED VIEWS 10 1 MECHANISM TOP SECTION 81 PV 9661 PV 9662...
Page 331: ...10 2 MECHANISM BOTTOM SECTION 82 PV 9661 PV 9662...
Page 332: ...10 3 CASSETTE UP COMPARTMENT SECTION 83 PV 9661 PV 9662...
Page 333: ...10 4 CHASSIS FRAME AND CASING PARTS SECTION 84 PV 9661 PV 9662...
Page 334: ...10 5 PACKING PARTS AND ACCESSORIES SECTION 85 PV 9661 PV 9662...