Troubleshooting Without Diagnostics
Solving Display Problems (Continued)
Problem | Cause | Solution | |
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The picture is broken up, | The monitor | 1. | Be sure the monitor cable is |
rolls, jitters, or flashes. | connections may be |
| securely connected to the |
| incomplete or the |
| computer. |
| monitor may be | 2. | In a |
| incorrectly adjusted. | ||
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| another monitor is in close | |
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| proximity, be sure the monitors |
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| are not interfering with each |
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| other’s electromagnetic field by |
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| moving them apart. |
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| 3. Fluorescent lights or fans may | |
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| be too close to the monitor. |
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| Monitor needs to be | Degauss the monitor. Refer to the | |
| degaussed. | documentation that came with the | |
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| monitor for instructions. | |
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Vibrating or rattling noise | Monitor degaussing | None. It is normal for the | |
coming from inside a CRT | coil has been activated. | degaussing coil to be activated | |
monitor when powered on. |
| when the monitor is powered on. | |
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Clicking noise coming from | Electronic relays have | None. It is normal for some | |
inside a CRT monitor. | been activated inside | monitors to make a clicking noise | |
| the monitor. | when turned on and off, when | |
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| going in and out of standby mode, | |
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| and when changing resolutions. | |
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High pitched noise coming | Brightness and/or | Lower brightness and/or contrast | |
from inside a flat panel | contrast settings are too | settings. | |
monitor. | high. |
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www.hp.com | Troubleshooting Guide |