PROBLEM | ITEMS TO CHECK | LOCATION |
Two fine horizontal | • The 2 very faint thin lines across the screen are normal. | |
lines are visible on | They are caused by the aperture grille stabilization | |
the screen. | filaments(Damper Wires) which are required for all | |
| aperture grille CRTs’. |
|
|
| Aperture Grille |
|
| Shadow of |
| Electrn Gun | Damper Wires |
| Damper Wires | |
Shadow of Damper Wires | Aperture Grille Type | |
A buzzing sound when power on.
•A brief vibration or hum sound that is heard just after power up is normal. This is caused by the automatic degaussing function. This sound will be heard each time the monitor is powered up from a cold start and each time the manual degauss button is used.
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