Preliminary Preparations; High Voltage - Nokia 446PRO Service Manual

7.2. Preliminary Preparations

Connect the signal cable to the PC. Switch on the monitor and the PC. Let the monitor warm up for
20 minutes before starting the adjustments.

7.2.1. High Voltage

Select 91.376 kHz/85 Hz (GTF642) crosshatch test pattern.
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Connect the high voltage meter to the anode of the picture tube.
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Adjust the high voltage to 27.0 ±0.2 kV with RT301 on SMA--board.
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RT301
446F
Front
25