Specifications

Troubleshooting Symptom Charts/No Raster (Continued) - 5
No Raster
(Continued)
No raster with LED off 1 Ensure that power cord is plugged in properly.
2 Check power outlet at the wall by plugging in an electronic
device that works.
3 If the display is plugged into a computer, ensure that
computer is on and power cord firmly connected.
4 Check video cable connections at computer and monitor.
Thumbscrews must be secure. If a video card is used, the
video cable must be properly connected.
5 Check cable connection between main deflection board and
control panel board.
6 Replace main deflection board and CRT/video board module.
See “Main Deflection and CRT/Video Board Module” in Take
Apart chapter. See Adjustments chapter for non-user
adjustments that might be necessary after board replacement.