4
2 Warning
2.1.
Prevention of Electrostatic Discharge (ESD) to Electrostatically
Sensitive (ES) Devices
Some semiconductor (solid state) devices can be damaged easily by static electricity. Such components commonly are called Elec-
trostatically Sensitive (ES) 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 electrostatic discharge (ESD).
1. Immediately before handling any semiconductor component or semiconductor-equipped assembly, drain off any ESD on your
body by touching a known earth ground. Alternatively, obtain and wear a commercially available discharging ESD wrist strap,
which should be removed for potential shock reasons prior to applying power to the unit under test.
2. After removing an electrical assembly equipped with ES devices, place the assembly on a conductive surface such as alumi-
num foil, to prevent electrostatic charge buildup or exposure of the assembly.
3. Use only a grounded-tip soldering iron to solder or unsolder ES devices.
4. Use only an anti-static solder removal device. Some solder removal devices not classified as [anti-static (ESD protected)] can
generate electrical charge sufficient to damage ES devices.
5. Do not use freon-propelled chemicals. These can generate electrical charges sufficient to damage ES devices.
6. Do not remove a replacement ES device from its protective package until immediately before you are ready to install it. (Most
replacement ES devices are packaged with leads electrically shorted together by conductive foam, aluminum foil or compara-
ble conductive material).
7. Immediately before removing the protective material from the leads of a replacement ES device, touch the protective material
to the chassis or circuit assembly into which the device will be installed.
Caution
Be sure no power is applied to the chassis or circuit, and observe all other safety precautions.
8. Minimize bodily motions when handling unpackaged replacement ES devices. (Otherwise ham less motion such as the brush-
ing together of your clothes fabric or the lifting of your foot from a carpeted floor can generate static electricity (ESD) sufficient
to damage an ES device).
Summary of Contents for TX-P50VT30E
Page 23: ...23 7 4 No Picture ...
Page 39: ...39 ...
Page 40: ...40 ...
Page 46: ...46 ...
Page 48: ...48 12 3 Wiring 2 ...
Page 49: ...49 12 4 Wiring 3 ...
Page 50: ...Model No TX P50VT30E J Schematic Diagram Note S 1 ...
Page 51: ...Model No TX P50VT30E J Replacement Parts List Note S 2 ...
Page 52: ...Model No TX P50VT30E J P Board 1 2 and P2 Board S 3 ...
Page 53: ...Model No TX P50VT30E J P Board 2 2 S 4 ...
Page 54: ...Model No TX P50VT30E J A Board 1 17 S 5 ...
Page 55: ...Model No TX P50VT30E J A Board 2 17 S 6 ...
Page 56: ...Model No TX P50VT30E J A Board 3 17 S 7 ...
Page 57: ...Model No TX P50VT30E J A Board 4 17 S 8 ...
Page 58: ...Model No TX P50VT30E J A Board 5 17 S 9 ...
Page 59: ...Model No TX P50VT30E J A Board 6 17 S 10 ...
Page 60: ...Model No TX P50VT30E J A Board 7 17 S 11 ...
Page 61: ...Model No TX P50VT30E J A Board 8 17 S 12 ...
Page 62: ...Model No TX P50VT30E J A Board 9 17 S 13 ...
Page 63: ...Model No TX P50VT30E J A Board 10 17 S 14 ...
Page 64: ...Model No TX P50VT30E J A Board 11 17 S 15 ...
Page 65: ...Model No TX P50VT30E J A Board 12 17 S 16 ...
Page 66: ...Model No TX P50VT30E J A Board 13 17 S 17 ...
Page 67: ...Model No TX P50VT30E J A Board 14 17 S 18 ...
Page 68: ...Model No TX P50VT30E J A Board 15 17 S 19 ...
Page 69: ...Model No TX P50VT30E J A Board 16 17 S 20 ...
Page 70: ...Model No TX P50VT30E J A Board 17 17 S 21 ...
Page 71: ...Model No TX P50VT30E J K S and V Board S 22 ...
Page 72: ...Model No TX P50VT30E J C1 Board S 23 ...
Page 73: ...Model No TX P50VT30E J C2 Board 1 2 S 24 ...
Page 74: ...Model No TX P50VT30E J C2 Board 2 2 S 25 ...
Page 75: ...Model No TX P50VT30E J C3 Board 1 2 S 26 ...
Page 76: ...Model No TX P50VT30E J C3 Board 2 2 S 27 ...
Page 77: ...Model No TX P50VT30E J SC Board 1 4 S 28 ...
Page 78: ...Model No TX P50VT30E J SC Board 2 4 S 29 ...
Page 79: ...Model No TX P50VT30E J SC Board 3 4 S 30 ...
Page 80: ...Model No TX P50VT30E J SC Board 4 4 S 31 ...
Page 81: ...Model No TX P50VT30E J SS Board 1 2 S 32 ...
Page 82: ...Model No TX P50VT30E J SS Board 2 2 and SS2 Board S 33 ...
Page 83: ...Model No TX P50VT30E J P Board Foil side S 34 ...
Page 84: ...Model No TX P50VT30E J P Board Component side S 35 ...
Page 85: ...Model No TX P50VT30E J P2 Board S 36 ...
Page 86: ...Model No TX P50VT30E J A Board Foil side S 37 ...
Page 87: ...Model No TX P50VT30E J A Board Component side S 38 ...
Page 88: ...Model No TX P50VT30E J K S and V Board S 39 ...
Page 89: ...Model No TX P50VT30E J C1 Board S 40 ...
Page 90: ...Model No TX P50VT30E J C2 Board S 41 ...
Page 91: ...Model No TX P50VT30E J C3 Board S 42 ...
Page 92: ...Model No TX P50VT30E J SC Board Foil side S 43 ...
Page 93: ...Model No TX P50VT30E J SC Board Component side S 44 ...
Page 94: ...Model No TX P50VT30E J SS Board Foil side S 45 ...
Page 95: ...Model No TX P50VT30E J SS Board Component side S 46 ...
Page 96: ...Model No TX P50VT30E J SS2 Board S 47 ...
Page 141: ...Model No TX P50VT30E J Exploded View 1 S 92 ...
Page 142: ...Model No TX P50VT30E J Exploded View 2 S 93 ...
Page 143: ...Model No TX P50VT30E J Packing 1 S 94 ...
Page 144: ...Model No TX P50VT30E J Packing 2 S 95 ...