Philips 200WB7EB/27, Service Manual

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15 200WB7 LCD
Electrical Instructions
1. General points
1.1 During the test and measuring, supply a distortion free AC mains voltage to the apparatus via an isolated transformer with
low internal resistance.
1.2 All measurements mentioned hereafter are carried out at a normal mains voltage (90 - 132 VAC for USA version, 195 - 264
VAC for EUROPEAN version, or 90 - 264 VAC for the model with full range power supply, unless otherwise stated.)
1.3 All voltages are to be measured or applied with respect to ground, unless otherwise stated.
Note: don't use heat-sink as ground.
1.4 The test has to be done on a complete set including LCD panel in a room with temperature of 25 +/- 5 degree C.
1.5 All values mentioned in these test instruction are only applicable of a well aligned apparatus, with correct signal.
1.6 The letters symbols (B) and (S) placed behind the test instruction denotes
(B): carried out 100% inspection at assembly line
(S): carried out test by sampling
1.7 The white balance (color temperature), has to be tested in subdued lighted room.
1.8 Repetitive power on/ off cycle are allowed. The image can be displayed after 8 sec.
1.9 All optical characteristics (including WHITE-D, Brightness, and so on) are determined according to panel specification after
warming up approximate 30 minutes that brightness stability is optimal, and follow strictly after panel specification.
2. Input signal
Signal type
2.1.1 Analogue Video: 0.7 Vp-p linear, positive polarity
Sync. : TTL level, separate, positive or negative polarity
Signal source: pattern generator format as attachment.(table 1 to 40) Reference generator : QuantumData 802G/ 802BT
2.1.2 Digital Video :600mVp-p TMDS Signal
2.1.3 Audio Signal : PC line in
2.2 Input signal mode
(1) Factory Preset Modes (15modes)
Item H.Freq.
(KHz)
Mode Resolution V.Freq.
(Hz)
Item H.Freq.
(KHz)
Mode Resolution V.Freq
. (Hz)
1 31.469 IBM VGA 10H 640x350 70.086 9 48.363 VESA 1024x768 60.004
2 31.469 IBM VGA 3H 720x400 70.087 10 60.023 VESA 1024x768 75.029
3 31.469 IBM VGA 12H 640x480 59.940 11 68.700 MACINTOSH 1152x870 75.000
4 35.000 MACINTOSH 640x480 67.000 12 63.981 VESA 1280x1024 60.020
5 37.500 VESA 640x480 75.000 13 79.976 VESA 1280x1024 75.025
6 35.156 VESA 800x600 56.250 14 75.0 VESA 1600x1200 60
7 37.879 VESA 800x600 60.317 15 65.29 - 1680x1050 60.0
8 46.875 VESA 800x600 75.000
(2) Preset Modes (40modes)
Item H.Freq.
(KHz)
Mode Resolution V.Freq.
(Hz)
Item H.Freq.
(KHz)
Mode Resolution V.Freq. (Hz)
1 31.469 IBM VGA 10H 640x350 70.086 22 60.289 CVT 2.3MA 1280 x768 75
2 31.469 IBM VGA 3H 720x400 70.087 23 54.1 1152x864 60
3 31.469 IBM VGA 12H 640x480 59.940 24 63.851 VESA 1152x864 70.012
4 35.000 MACINTOSH 640x480 67.000 25 67.500 VESA 1152x864 75.000
5 37.861 VESA 640x480 72.809 26 68.700 MACINTOSH 1152x870 75.000
6 37.500 VESA 640x480 75.000 27 61.845 SUN WS 1152x900 66.004
7 43.269 VESA 640x480 85.008 28 71.810 SUN WS 1152x900 76.150
8 35.156 VESA 800x600 56.250 29 60.000 VESA 1280x960 60.000
9 37.879 VESA 800x600 60.317 30 75.000 VESA 1280x960 75.000
10 48.077 VESA 800x600 72.188 31 63.981 VESA 1280x1024 60.020
11 46.875 VESA 800x600 75.000 32 71.691 SUN WS 1280x1024 67.189
12 53.674 VESA 800x600 85.061 33 76.000 DOS/V 1280x1024 72.000
13 49.700 MACINTOSH 832x624 75.000 34 79.976 VESA 1280x1024 75.025
14 56.4 - 960x720 75 35 81.130 SUN WS 1280x1024 76.110
15 44.75 - 960x720 60 36 91.1 VESA 1280x1024 85.0
16 48.363 VESA 1024x768 60.004 37 78.36 CVT 2.3MA 1600x1000 75.0 (for D-Sub)