TDA9341PS 데이터 시트보기 (PDF) - NXP Semiconductors.

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TDA9341PS

Eeprom TDA9341 / DIP 64PIN

NXP Semiconductors. 

1.3 Regulate voltage adjustment components on the power PCB to make the voltmeter

read 110 ± 0.5V (21’’).

3). High Voltage Inspection

Caution: No high voltage adjustment components inside the chassis. Please

perform high voltage inspection in the following ways.

1.1 Connect a precise static high voltmeter to the second anode ( inside the high

voltage cap ) of the picture tube.

1.2 Plug in the supply socket (220V, AC) and turn on the TV. Set the brightness and

contrast to minimum(0uA).

1.3 The high voltage reading should be less than the maximum EHT voltage

permissible.

1.4 Change the brightness from minimum to maximum, and ensure high voltage not

beyond the limitation in any case.

4). Focus Adjustment

Caution: Dangerously high voltages are present inside the TV. Extreme

caution should be exercised when working on the TV with the back removed.

1.1 Afer removing the back cover, look for the FBT on the main PCB. There should be

a FCB on the FBT.

1.2 Power on the TV and preheat it for 15 min.

1.3 Receive a normal TV signal. Rotate knob of the FCB until you get a sharp picture.

5). Safety Inspection

1.1 Inspection for insulation and voltage-resistant

Perform safety test for all naked metal of the TV. Supply high voltage of 3000V

AC, 50Hz (limit current of 10mA) between all naked metal and cold ground. Test

every point for 3 sec. And ensure no arcing and sparking.

1.2 Requirements for insulation resistance

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