Philips 170C5, Service Manual

Page: 55 / 66

55 170C5 LCD
BRAND : PHILIPS
8639 000 15502
2004-06-08
2004-06-08
590
16
26
Jerry Chen/Peter V.
Go to cover page
8 800
X
600
37.
9
KHz
40 60
Hz
9 8
3
2
X
624 49
.7KHz
5
7.
28
7
5
Hz MAC
10 1024
X7
68 60
.
0
KHz 7
8
.7
5
7
5
Hz
11 1024
X7
68 48
.
4
KHz
65 60
Hz
12 1152
X
8
7
0 68
.7KHz
100
7
5
Hz MAC
1
3
1152
X
900
7
1
.
8
KHz
108
7
6
Hz SUN Mode II
14
1280
X
102
4
64
.
0
KHz
108 60
Hz
15
1280
X
102
4
80
.
0
KHz
1
3
5
7
5
Hz
Note :
1
. Screen displays perfect picture at
15
factory preset modes.
2
.Screen displays visible picture with OSD warning when input modes
are other then 3
4
preset modes
4
.3 Brightness:
200
nits (at panel color temperature, Screen center point, Fig.
1
)
4
.
4
Image size
4
.
4
.
1
Actual display size
33
8
x
2
7
0
mm
4
.
5
Brightness uniformity
Set contrast at
50
% and turn the brightness to get average above
200
nits
at center of the screen.
Apply the Fig
1
. It should comply with the following formula:
Minimum luminance of nine points (brightness)
>=
0
.7
5
(Min)
Maximum luminance of nine points (brightness)
4
.
6
Check Cross talk (S)
Apply Pattern
2
. Set contrast at
50
% and brightness at
100
%. Measure A.
Then output Pattern 3 and measure A . The cross talk value:
ABS ( A
-
A )
¾¾¾¾¾¾¾¾¾ X
100
% <
1
.
5
% (Max)
A
8
'
'