Sanyo LED-22XR10F Service Manual page 18

5
Functions checkup
5.1 Analog & digital TV functions
Input central signal to RF port, enter into menu "CHANNEL", then search channels automatically,
check if there is any omitted channel, check if the output of speakers and the picture are normal.
5.2 Composite video of AV port
Input composite video signal to AV port, check if the picture and the sound are normal;
5.3 Analog component YPbPr/YCbCr port
Input analog YUV signal from VG848 signal generator with YUV formats listed as Table 2 respectively,
check if the picture and the sound are normal under the circumstances of power-on/off, switching channel
and format, etc.
Definition
No.
1 720×480
2 720×480
3 720×576
4 720×480
5 720×480
6 720×576
7 1280×720
8 1280×720
9 1280×720
10 1920×1080
11 1920×1080
12 1920×1080
13 1920×1080
14 1920×1080
15 1920×1080
16 1920×1080
17 1920×1080
18 1920×1080
5.4 VGA port
Input VGA signal from VG848 signal generator to VGA port with VGA signal formats listed in Table 3
respectively, check if the display and the sound are normal, if there is any H/V offset, enter into main
menu and select items "PICTURE"->"Screen"->"Auto Adjusting" in turn to make calibration
automatically;
No. Definition
1 640×480
2 720×400
3 640×480
4 640×480
5 800×600
6 800×600
Table 2 YUV signal formats
H. - fre.（kHz）
15.734
15.734
15.625
31.469
31.469
31.25
45
45
37.5
33.75
33.75
28.125
67.5
67.5
56.25
-
-
-
Table 3 VGA signal formats
H. - fre.（kHz）
31.469
31.469
37.861
37.5
35.156
37.879
V. – fre.（Hz）
60
59.94
50
60
59.94
50
59.94
60
50
59.94
60
50
59.94
60
50
23.94/24
25
29.97/30
V. – fre.（Hz）
59.94
70.086
72.809
75
56.25
60.317
Dot pulse fre.（MHz）
13.5
13.5
13.5
27
27
27
74.18
74.25
74.25
74.25
74.25
74.25
148.35
148.5
148.5
-
-
-
Dot pulse fre.（MHz） Note
25.175
28.322
31.5
31.5
36
40
Note
480i(NTSC)
480i(NTSC)
576i(PAL)
480p(NTSC PROG)
480p(NTSC PROG)
576p(PAL PROG)
720p(59p)
720p(60p)
720p(50p)
1080i(59i)
1080i(60i)
1080i(50i)
1080p(59p)
1080p(60p)
1080p(50p)
-
-
-
IBM
IBM
VESA
VESA
VESA
VESA