NEC DT100 - Manual (Page 53)

E-48
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Troubleshooting
If you think a fault has occurred, check the following table and take the required action.
Problem
Projector does not turn on E-18
E-45
The projector lamp does not light. E-45
E-47
E-43
E-45
No picture E-26
E-19, E-25
E-34
E-21
Picture is distorted. E-18
E-32
Picture is blurred E-27
E-17
E-32
Image jitter E-34
E-14
Picture shifts. E-34
Color shift E-34
No sound E-35
Cabinet emits cracking sound -
Alarm indicator is lit or blinking. E-43
E-47
Remote control does not operate. E-15
E-9, E-10
E-9, E-10
E-15
Check These items
• The power cable is disconnected.
• The lamp unit cover has not been replaced.
• The lamp is blown.
• The air filter has not been replaced.
• The temperature inside your projector is too high. For protection, the
lamp does not light.
• The lamp usage time has exceeded 1500 hours.
• Selected input device is not connected.
• Cable from input device not connected correctly.
• "Brightness" or "Contrast" in the "Image adjustment" menu is set
fully to the negative side.
• Check the functions of the personal computer.
• Your projector is not positioned correctly.
• The keystoning is set.
• Focus not adjusted.
• The projection distance should be within the limit of the lens' focal
range.
• The keystoning is set.
• Adjust the PHASE under "Sync adjustment" menu.
• Press the AUTO
SYNC button of the remote control and perform "Sync
adjustment".
• Is the setting in the "Sync adjustment" menu correct?
• Adjust the PHASE under "Sync adjustment" menu.
• The volume control is set fully to the negative side.
• Cracking sounds are emitted when the cabinet expands or shrinks
slightly due to changes in temperature. These sounds do not affect
performance.
• Follow the procedure described in Protection from Overheating.
• The air filter is missing.
• Batteries exhausted or worn out.
• The remote control sensor is radiated by other lights such as
lighting.
• The remote control sensor on your projector is obscured.
•Inverter equipment is near.