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B+ Line Minimum Resistance 125 V 1 k (Cold chassis ground) 27 V 180 17 V 110 (Cold chassis ground) (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 32.0 kV is 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.
LEAKAGE CURRENT COLD CHECK
1. Unplug the AC cord and connect a jumper between the two prongs on the plug. 2. For physically operated power switches, turn power on. Otherwise skip step 2. 3. Measure the resistance value, with an ohmmeter, between the jumpered AC plug and each exposed metallic cabinet part on the receiver, such as screwheads, connectors, etc. When the exposed metallic part has a return path to the chassis, the reading should be between 1 M and 12 M . When the exposed metal does not have a return path to the chassis, the reading must be infinity.
LEAKAGE CURRENT HOT CHECK
