Apple Multiple Scan 20 Display Especificaciones descargar pdf (Pagina 32)

Troubleshooting Symptom Charts/No Raster

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No Raster

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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.

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Apple Multiple Scan 20 Display Especificaciones Pagina 32