Preliminary Preparations; High Voltage; Coarse Width - Nokia 445PRO Service Manual

21” high resolution colour monitor
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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 107.10 kHz/85Hz (NCE791) crosshatch test pattern.
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Connect the high voltage meter to the anode of the picture tube.
Adjust the high voltage to 27.0 ±0.2 kV with RT301 on SMA--board.
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7.2.2. Coarse width

1) Select mode 00 (107.10 kHz/85Hz (NCE791))
2) Set width to the 80 % with menu adjustment..
3) Adjust picture width to nominal with width preset (RT201)
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RT301
RT201
445N
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