Specifications

Troubleshooting
VTM-200 Installation and Operation Handbook 4-2
Problems, Causes, and Solutions
Table 4-1. VTM-200: Problems, Causes, and Solutions
Problem/Symptom Possible Cause
No video visible on SVGA
monitor.
 Output of VTM-200 not connected to SVGA 19 monitor.
 SVGA monitor has no power applied.
SVGA monitor cannot lock to
VTM-200 output.
 Cable from VTM-200 to monitor not connected properly.
 Monitor not capable of 800 x 600 resolution or proper combination of
horizontal and vertical rates.
 Incorrect serial digital format being applied.
VTM-200 graticule and display
colors wrong.
 Check settings in SETUP menu.
VTM-200 graticules stable but
display is unlocked.
 Check to see that input signal is applied to correct connector, and that it
matches the standard selected (NTSC vs. PAL, 525/60 vs. 625/50).
 Input signal unterminated.
 Input signal is unstable.
 External reference selected with no external reference input.
Audio amplitude too small or
too large.
 Audio levels and sensitivity not matched.
No audio display or menu
options.
 Audio option not installed.
Portions of the display are not
visible (off the VGA screen) or
aspect ratio is incorrect.
 Horizontal and vertical position and size on the VGA monitor need
adjustment
If the problem still exists after troubleshooting the VTM-200, see Appendix B,
“Service Support,” for further instructions.