Panasonic PV 20DF62, Руководство по обслуживанию

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B+ lines, and (+) side to chassis ground. Each line should have
more resistance than specified, as follows :
(For model with 20 inch CRT)
B+ Line
Minimum Resistance
115 V
1 k (Cold chassis ground)
28 V
180 (Cold chassis ground)
220 V
1 k (Cold chassis ground)
(For model with 27 inch CRT)
B+ Line
Minimum Resistance
140 V
1 k (Cold chassis ground)
28 V
180 (Cold chassis ground)
220 V
1 k (Cold chassis ground)
6. When the TV set is not used for a long period of time, unplug the
power cord from the AC outlet.
7. Potentials, as high as 34.5 kV are present when this TV set is in
operation. Operation of the TV set without the rear cover involves
the danger of a shock hazard from the TV set power supply.
Servicing should not be attempted by anyone who is not
thoroughly familiar with the precautions necessary when working
on high voltage equipment. Always discharge the anode of the
picture tube to the CRT ground of receiver before handling the
tube.
8. After servicing make the following leakage current checks to
prevent the customer from being exposed to shock hazards.
1.2. LEAKAGE CURRENT COLD CHECK