Troubleshooting: Hard Disk Drive and Probable Cause
Troubleshooting Tips for New Monitors
Here are some basic trouble shooting tips for new monitors: 1. The picture does not appear * Check to make sure the signal cable is firmly connected in the socket. * Check to see if the computer system's power is ON. * Check that the Brightness Control is at the appropriate position, not at the minimum. 2. The Screen is not synchronized * Check to make sure the signal cable is firmly connected in the socket. * Check that the output level matches the input level of your computer. * Make sure the signal timing of the computer system is within the specification of the monitor. 3. The position of the screen is not in the center * Adjust the H-Size, H-Phase or V-Size, V-Center controls. * Check if the signal timing of the computer system is within the specification of the monitor. 4. The screen is too bright or too dark * Check if the Brightness or contrast control is at the appropriate position, not at the maximum or minimum. * Check if the specified voltage is applied * Check if the signal timing of the computer system is within the specification of the monitor. * Especially, check the horizontal frequency. 5. The screen is shaking * Move all objects that emit a magnetic field, such as a motor or transformer, away from the monitor. * Check if the specified voltage is applied. * Check if the signal timing of the computer system is within the specification of the monitor.
Troubleshooting Tips for a New Motherboard
System has no power at all. Power light does not illuminate, fan inside the power supply does not turn on, and indicator light on keyboard does not turn on. PROBABLE CAUSE | DIAGNOSIS | SOLUTION | Power cable is unplugged. | Visually inspect power cable. | Make sure power cable is securely plugged in. | Defective power cable. | Visual inspection, try another cable. | Replace cable. |
Here are some basic trouble shooting tips for new monitors: 1. The picture does not appear * Check to make sure the signal cable is firmly connected in the socket. * Check to see if the computer system's power is ON. * Check that the Brightness Control is at the appropriate position, not at the minimum. 2. The Screen is not synchronized * Check to make sure the signal cable is firmly connected in the socket. * Check that the output level matches the input level of your computer. * Make sure the signal timing of the computer system is within the specification of the monitor. 3. The position of the screen is not in the center * Adjust the H-Size, H-Phase or V-Size, V-Center controls. * Check if the signal timing of the computer system is within the specification of the monitor. 4. The screen is too bright or too dark * Check if the Brightness or contrast control is at the appropriate position, not at the maximum or minimum. * Check if the specified voltage is applied * Check if the signal timing of the computer system is within the specification of the monitor. * Especially, check the horizontal frequency. 5. The screen is shaking * Move all objects that emit a magnetic field, such as a motor or transformer, away from the monitor. * Check if the specified voltage is applied. * Check if the signal timing of the computer system is within the specification of the monitor.
Troubleshooting Tips for a New Motherboard
System has no power at all. Power light does not illuminate, fan inside the power supply does not turn on, and indicator light on keyboard does not turn on. PROBABLE CAUSE | DIAGNOSIS | SOLUTION | Power cable is unplugged. | Visually inspect power cable. | Make sure power cable is securely plugged in. | Defective power cable. | Visual inspection, try another cable. | Replace cable. |