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
7
TH-65PV600A / TH-65PV600M
Summary of Contents for TH-65PV600M
Page 6: ...1 Applicable signals 6 TH 65PV600A TH 65PV600M ...
Page 25: ...8 3 Lead of Wiring 2 25 TH 65PV600A TH 65PV600M ...
Page 26: ...8 4 Lead of Wiring 4 26 TH 65PV600A TH 65PV600M ...
Page 27: ...8 5 Lead of Wiring 5 27 TH 65PV600A TH 65PV600M ...
Page 31: ...9 4 No Picture 31 TH 65PV600A TH 65PV600M ...
Page 34: ...34 TH 65PV600A TH 65PV600M ...
Page 35: ...10 3 Option Description 35 TH 65PV600A TH 65PV600M ...
Page 36: ...36 TH 65PV600A TH 65PV600M ...
Page 39: ...11 4 Adjustment Volume Location 11 5 Test Point Location 39 TH 65PV600A TH 65PV600M ...
Page 48: ...48 TH 65PV600A TH 65PV600M ...
Page 83: ...15 Schematic and Block Diagram 15 1 Schematic Diagram Notes TH 65PV600A TH 65PV600M 83 ...
Page 164: ...16 2 Packing Exploded View 1 164 TH 65PV600A TH 65PV600M ...
Page 165: ...16 3 Packing Exploded View 2 165 TH 65PV600A TH 65PV600M ...
Page 166: ...16 4 Packing Exploded View 3 166 TH 65PV600A TH 65PV600M ...
