Panasonic AG-VF5P, Руководство по обслуживанию

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The resistance value must be more than 5M .
Figure1
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 , 10W resistor, in parallel with a 0.15 F
capacitor, between each exposed metallic part on the set an a
good earth ground such as a water pipe, as shown in Figure1.
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. Reverses the AC plug in the AC outlet repeat each of the above
measurements.
6. The potential at any point should not exceed 0.15 volts RMS. A
leakage current tester (Simpson Model 229 equivalent) may be
used to make the hot checks, leakage current must not exceed 0.1
milliamp. In case a measurement is outside of the limits specified,
there is a possibility of a shock hazard, and the equipment should
be repaired and checked before it is returned to the customer.
ELECTROSTATICALLY SENSITIVE (ES) DEVICES
Some semiconductor (solid state) devices can be damaged easily by static electricity. Such
components commonly are called Electrostatically sensitive (ED) Devices. Examples of typical
ES devices are integrated circuits and some field-effect transistors and semiconductor “chip”
components. The following techniques should be used to help reduce the incidence of
component damage caused by static electricity.
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