Rockwell Automation 6157-C User Manual - Manual (Page 27)

Industrial 19" CRT Monitor 27
Publication 6157-UM001A-EN-P
Self-Test Display
When there is no signal input (no connection), the OSD shows the
following:
Figure 11
Self-Test Display
9 3 0 0 K 6 5 0 0 K 5 5 0 0 K
When the synchronization signal is out of specification, the OSD will
show current horizontal and vertical frequency on red image, then
disappear. For example:
1 0 6 K h z / 8 5 . 0 H z