Philips 170X6FB/00 Service Manual page 21

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: do not use heat-sink as ground.
1.4 The test has to be done on a complete set including LCD panel after
30 minutes warm-up at least 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 except it should be
avoided within 6 sec.
2. Input signal
2.1 Signal type
2.1.1 Video signal input
Signal source: pattern generator format as the SPEC
Reference generator: QuantumData 802G
The input signals can be applied in two different modes:
1). VESA Analog
The video input consists of red, green, and blue signals.
The video signals are analog levels, where 0V corresponds to
black and 700mV is the maximum signal amplitude. Input
impedance of video pins is 75 ohm +/- 1%.
2). Intel DVI Digital
Input signal: Four channel TMDS signals
2.1.2 Sync signal input
The capability of sync signal inputs shall include separate sync,
composite sync sync on green. input impedance: 2k2 ohms
The signals are defined as follow:
Separate sync TTL level, Positive/Negative
Composite sync TTL level, Positive/Negative
Sync on green H-sync TTL level, Positive/Negative
Signal source: pattern generator format as the spec
Reference generator: QuantumData 802G
2.2 Input signal mode
Pre-set 34 modes
PRESET VIDEO RESOLUTION
# Resolution H-
Frequency
1 640X350 31.5K
2 720X400 31.5K
3 640X480 31.5K
4 640X480 35.0K
5 640X480 37.9K
6 640X480 37.5K
7 640X480 43.3K
8 800X600 35.2K
9 800X600 37.9K
10 800X600 48.1K
11 800X600 46.9K
12 800X600 53.7K
13 832X624 49.7K
Electrical instructions(170X6)
Pixel rate V- Comment
Frequency
25.175 70Hz IBM VGA 10h
28.322 70Hz IBM VGA 3h
25.175 60Hz
30.24 67Hz
31.5 72Hz
31.501 75Hz
36 85Hz
36 56Hz
40 60Hz
50 72Hz
49.498 75Hz
56.251 85Hz
57.28 75Hz MAC
14 1024X768 48.4K
15 1024X768 56.5K
16 1024X768 60.0K
17 1024X768 61.1K
18 1024X768 68.7K
19 1152X864 54.0K
20 1152X864 67.5K
21 1152X864 63.9K
22 1152X870 68.7K
23 1152X900 61.8K
24 1152X900 71.8K
25 1280X960 60.0K
26 1280X960 75.0K
27 1280X1024 64.0K
28 1280X1024 71.7K
29 1280X1024 76.0K
30 1280X1024 80.0K
31 1280X1024 81.1K
32 688X556 31.3K
33 960X720 44.76K
34 960X720 56.4K
2.3 Allowed 85 Hz overscan signal mode specified
Once the signal input of PC is 85Hz, this monitor is able to display at
least for10 minutes. An attention signal appears and shows THIS IS
85HZ OVERDRIVE, CHANGE COMPUTER DISPLAY INPUT TO
1280X1024 @ 60 HZ
Dot rate (MHz) H. Freq (KHz) Mode
36.000 43.269
5 56.250 53.674
94.500 68.677
3.power Supply (S)
3.1Setup the AC I/P at 90VAC, and Output DC loading at 12V 3.7 Amp,
5V 2.1 Amp,The DC output voltages are 5V +/- 0.25V and 12V+/-1.2V.
4. Display Adjustment
4.1 Access to factory mode (RS232) in auto-alignment system
The communication protocol switch to RS232 .
4.2 Auto color adjustment (B)
Apply a 640x480/31kHz/60Hz signal with 16 gray pattern, set brightness
to 100%, and contrast to 50%.
Adjust the R. G. B offset, and gain to calibrate the color smoothly and
64-gray level distinguishable. Check all pre-setting 34 modes.
190X6&170X6 LCD
Go to cover page
65 60Hz
75 70Hz
78.75 75Hz
83.096 76Hz IBM XGA-2
94.5 85Hz
79.9 60Hz non-VESA
108 75Hz
94.5 70Hz non-VESA
100 75Hz MAC
92.94 66Hz SUN Mode IV
108 76Hz SUN Mode II
108 60Hz
129.895 75Hz non-VESA
108 60Hz
117 67Hz SUN Mode V
130.223 72Hz DOS/V
135 75Hz
135.008 76Hz SUN Mode I
27 50Hz TV-PAL
57.58 60Hz
72.42 75Hz
Resolution V. Freq (Hz)
VESA 640 * 480 85.008
VESA 800 * 600 85.061
VESA 1024 * 768 84.997
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