1.4. X-Radiation
Warning :
1. The potential sources of X-Radiation in TV sets are the High Voltage section and the picture tube.
2. When using a picture tube test rig for service, ensure that the rig is capable of handling 31.7kV without causing X-Radiation.
Note: It is important to use an accurate periodically calibrated high voltage meter.
1. Set brightness to minimum.
2. Measure the High Voltage. The meter reading should indicate 31.0 +0.7, -1.5 kV. If the meter indication is out of tolerance,
immediate service and correction is required to prevent the possibility of premature component failure.
3. To prevent possibility of X-Radiation, it is essential to use the specified picture tube.
2 Location of Controls and Circuit Boards
Location and Function Name of Circuit Board
A - Main
T - Text
H - Rear Av
L - Crt Board
X - Pin Cushion
G - Power Board
4
TX-25P20T
Содержание TX-25P20T
Страница 5: ...5 TX 25P20T ...
Страница 12: ...6 G BOARD TNP4G120AK TX 25P20T 13 ...
Страница 13: ...6 1 A BOARD TNP4G104BM TX 25P20T 14 ...
Страница 14: ...7 H BOARD TNP4G131AC 15 TX 25P20T ...
Страница 15: ...8 X BOARD TNP4G108AQ 9 T BOARD TNP4G115AC 16 TX 25P20T ...
Страница 16: ...10 L BOARD TNP4G107AQ 17 TX 25P20T ...
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Страница 37: ...28 TX 25P20T ...
Страница 38: ...29 TX 25P20T ...
Страница 39: ...30 TX 25P20T ...
Страница 40: ...31 TX 25P20T ...
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Страница 45: ...36 TX 25P20T ...