File name p15_18.pdfElectrical Instructions 107B2 CM24 GSIII 15
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0. General - Connect a "high-voltage voltmeter" between the high-
voltage connection of the picture tube and earth.
When carry-out the electrical settings in many cases a video - Turn on the power.
signal must be applied to the monitor. A computer with : - Set the EHT trimming potentiometer R3587 so that the
"high- voltage voltmeter" reads 26.5 KV +/- 0.2 KV .
- ATI GPT-1600 (4822 397 10065), Mach 64 (up to 107kHz)
- Turn off the power.
are used as the video signal source. The signal patterns - Remove the "high-voltage voltmeter" from the picture tube.
are selected from the "service test software" package, see - Turn on the power again.
user guide 4822 727 21046 (GPT-1600).
3. Monitor the following auxiliary voltages.
0.1 This monitor has 35 factory-preset modes as below:
SOURCE ACROSS C2152 + 190.0V +/- 0.2VDC.
1792 x1334 60 kHz/83.64 Hz 1024 x 768 60 kHz/48.363 Hz SOURCE ACROSS C2154 + 79.0V +/- 1.0VDC.
1856 x1392 60 kHz/86.33 Hz 1024 x 768 70 kHz/56.476 Hz SOURCE ACROSS C2156 - 6.1V +/- 0.3VDC.
1920 x1440 60 kHz/90 Hz 1024 x 768 75 kHz/60 Hz SOURCE ACROSS C2160 + 13.4V +/- 0.5VDC.
640 x 350 70 kHz/31.469 Hz 1024 x 768 84.99 kHz/68.37 Hz
SOURCE ACROSS C2157 - 13.4V +/- 0.5VDC.
640 x 350 85 kHz/37.861 Hz 1280 x 1024 63.9 kHz/60Hz
640 x 480 100.1kHz/50.6 Hz(SNI)1152 x 864 75 kHz/67.5 Hz
640 x 480 60 kHz/31.469 Hz 1152 x 864 85 kHz/77.1Hz 4. General conditions for alignment
640 x 480 72.8 kHz/37.861 Hz 1152 x 870 75 kHz/68.681 Hz
640 x 480 75 kHz/37.5 Hz 1152 x 900 76 kHz/71.8 Hz(SUN) 4.1 During all alignments, supply a distortion free AC mains
640 x 480 85 kHz/43.269 Hz 1280 x1024 60kHz/63.98 Hz voltage to set via an isolating transformer with low internal
720 x 400 70 kHz/31.469 Hz 1280 x1024 75 kHz/79.97 Hz impedance.
720 x 400 85 kHz/37.927 Hz 1280 x1024 85 kHz/91.146 Hz 4.2 Align in pre-warmed condition, at least 30 minutes warm-
800 x 600 100.1 kHz/63.9 Hz(SNI) 1280 x960 60 kHz/60 Hz
up with nominal picture brightness.
800 x 600 60.3 kHz/37.879 |