Service manual

1. Function test

(1) Test equipment

Color video signal and pattern generator (or PC with SXGA resolution)

(2) Test condition

Before function testing and alignment, the unit must warm up for at least 30 minutes under the

1. Room temperature;

2. With full-white screen, RGB, black pattern;

3. With cycled display modes.

2. Test display modes

Item Timing Analog Digital

1 640 x 350 @ 70Hz, 31.5kHz Yes Yes

2 640 x 400 @ 60Hz, 31.5kHz Yes Yes

3 640 x 400 @ 70Hz, 31.5kHz Yes Yes

4 640 x 480 @ 50Hz, 24.7kHz No No

5 640 x 480 @ 60Hz, 31.5kHz Yes Yes

6 640 x 480 @ 67Hz, 35.0kHz Yes Yes

7 640 x 480 @ 72Hz, 37.9kHz Yes Yes

8 640 x 480 @ 75Hz, 37.5kHz Yes Yes

9 640 x 480 @ 85Hz, 43.27kHz Yes Yes

10 720 x 400 @ 70Hz, 31.5kHz Yes Yes

11 800 x 600 @ 56Hz, 35.1kHz Yes Yes

12 800 x 600 @ 60Hz, 37.9kHz Yes Yes

13 800 x 600 @ 75Hz, 46.9kHz Yes Yes

14 800 x 600 @ 72Hz, 48.1kHz Yes Yes

15 800 x 600 @ 85Hz, 53.7kHz Yes Yes

16 832 x 624 @ 75Hz, 49.7kHz Yes Yes

17 1024 x 768 @ 60Hz, 48.4kHz Yes Yes

18 1024 x 768 @ 70Hz, 56.5kHz Ye s Yes

19 1024 x 768 @ 72Hz, 58.1kHz Yes Yes

20 1024 x 768 @ 75Hz, 60.0kHz Yes Yes

21 1024 x 768 @ 85Hz, 68.67kHz Yes Yes

22 1152 x 864 @ 75Hz, 67.5kHz Yes Yes

23 1152 x 870 @ 75Hz, 68.7kHz Yes Yes

24 1280 x 1024 @ 60Hz, 63.4kHz Yes Yes

25 1280 x 1024 @ 75Hz, 79.97kHz Yes Yes

26 1280x 720 @ 60Hz, 45kHz (HDTV) Yes Yes

following conditions:

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VX922-1