19
TROUBLESHOOTING
Before calling a service technician, please check the following table for a possible cause of the
problem and some solution.
Symptom
Solution
Monitor will not turn on
Make sure the power cord is plugged in, then
press the POWER button
No picture, no sound
Check the cable connections
No sound, picture OK
Check the audio cable connections. Try
pressing Volume up button in the Menu
Poor color, sound OK
Check cable connections
Adjust video setup menu
Poor color or no color
Adjust color and/or TINT (NTSC only)
APPLICABLE TIMING
VGA Timing
There are a total of 11 timing modes that can be saved in memory by FIFO detecting
architecture.
VGA Support Timing
Mode
Resolution
H Freq.
(kHz)
V Freq.
(Hz)
Pixel
clock
(MHz)
15”
19”
1024x768
15Hz
1280x102
4
75Hz
VGA
640x480@60
31.469
59.940
25.175
ˇ
ˇ
640x480@72
37.861
72.809
31.500
ˇ
ˇ
640x480@75
37.500
75.000
31.500
ˇ
ˇ
SVGA
800x600@60
37.879
60.317
40.000
ˇ
ˇ
800x600@72
48.077
72.188
50.000
ˇ
ˇ
800x600@75
46.875
75.000
49.500
ˇ
ˇ
XGA
1024x768@60
48.363
60.004
65.000
ˇ
ˇ
1024x768@70
56.576
70.069
75.000
ˇ
ˇ
1024x768@75
60.023
75.029
78.750
ˇ
ˇ
SXGA
1280x1024@60
63.980
60.000
108.000
ˇ
1280x1024@75
79.976
75.025
135.000
ˇ
