2 Safety Precautions
2.1. General Guidelines
1. When servicing, observe the original lead dress. If a short circuit is found, replace all parts which have been overheated or
damaged by the short circuit.
2. After servicing, see to it that all the protective devices such as insulation barriers, insulation papers shields are properly
installed.
3. After servicing, make the following leakage current checks to prevent the customer from being exposed to shock hazards.
2.2. Touch-Current Check
1. Plug the AC cord directly into the AC outlet. Do not use an isolation transformer for this check.
2. Connect a measuring network for touch currents between each exposed metallic part on the set and a good earth ground such
as a water pipe, as shown in Figure 1.
3. Use Leakage Current Tester (Simpson 228 or equivalent) to measure the potential across the measuring network.
4. Check each exposed metallic part, and measure the voltage at each point.
5. Reserve the AC plug in the AC outlet and repeat each of the above measure.
6. The potential at any point (TOUGH CURRENT) expressed as voltage U
1
and U
2
, does not exceed the following values:
For a. c.: U
1
= 35 V (peak) and U
2
= 0.35 V (peak);
For d. c.: U
1
= 1.0 V,
Note:
The limit value of U
2
= 0.35 V (peak) for a. c. and U
1
= 1.0 V for d. c. correspond to the values 0.7 mA (peak) a. c. and 2.0
mA d. c.
The limit value U
1
= 35 V (peak) for a. c. correspond to the value 70 mA (peak) a. c. for frequencies greater than 100 kHz.
7. In case a measurement is out of 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.
Figure 1
6
TH-65PV500E / TH-65PV500B
Summary of Contents for TH-65PV500E
Page 5: ...1 Applicable signals 5 TH 65PV500E TH 65PV500B ...
Page 22: ...7 Location of Lead Wiring 7 1 Lead of Wiring 1 22 TH 65PV500E TH 65PV500B ...
Page 23: ...7 2 Lead of Wiring 2 23 TH 65PV500E TH 65PV500B ...
Page 24: ...7 3 Lead of Wiring 3 24 TH 65PV500E TH 65PV500B ...
Page 28: ...8 3 No Picture 28 TH 65PV500E TH 65PV500B ...
Page 31: ...31 TH 65PV500E TH 65PV500B ...
Page 32: ...9 3 Option Description 32 TH 65PV500E TH 65PV500B ...
Page 33: ...33 TH 65PV500E TH 65PV500B ...
Page 42: ...42 TH 65PV500E TH 65PV500B ...
Page 78: ...TH 65PV500E TH 65PV500B 78 ...
Page 79: ...14 Block and Schematic Diagram 14 1 Schematic Diagram Notes TH 65PV500E TH 65PV500B 79 ...
Page 154: ...15 2 Packing Exploded Views 1 154 TH 65PV500E TH 65PV500B ...
Page 155: ...15 3 Packing Exploded Views 2 155 TH 65PV500E TH 65PV500B ...
Page 156: ...15 4 Packing Exploded Views 3 156 TH 65PV500E TH 65PV500B ...