NEC 1200c Manual

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4. Using Menus
4-6-6. IP Address
Displays the IP address set in the projector head.
SystemDisplays the IP address set for the projector head (System). ←
 Displays the IP address.
4-6-7. Setup Date
Displays the date when the projector was set up (starting date of the warranty period).
← Displays the date when the projector was set up (starting date of the warranty 
period). 
4-6-8. Option Status
Displays the link status of the device mounted in slot A and slot B (si\
gnal input board, multi-media switcher, or media block)  on
the projector.
Normally the device name mounted in slot A and slot B are displayed. The device name is displayed in ( ) when the projector
is in standby or when connection to the device cannot be confirmed.
B
ADisplays the link status of the device in slot B. 
• SIB: Signal input board
• IMB: Media block
• No Board: No device mounted
Displays the link status of the device in slot A. 
• MMS: Multi-media switcher
• IMB: Media block
• No Board: No device mounted
  Displays the link status of the device in slot B. 
  Displays the link status of the device in slot A. 
						

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NOTEPlease request your dealer to perform lamp replacement and cleaning of the projector inside.
5-1. Cleaning the Cabinet
Be sure to always check that the AC power supply of the projector head is disconnected before carrying out maintenance of
your projector.
•Wipe with a dry, soft cloth without nap.
When the cabinet is excessively dirty, wipe with cloth well wrung after being dampened with a neutral detergent diluted with
water and then finish up with a dry cloth.
When you use a chemical dust cloth, follow the instructions in the manua\
l attached to it.
• Do not use a solvent, such as thinner or benzene. The coating may deteri\
orate or peel off.
• When removing dust on the ventilation opening, suck it off using an adapter with a brush on a vacuum cleaner. Never allow
the cleaner without an adapter to come into direct contact or use a nozzles adapter in cleaning.
• Clean the ventilation opening at regular intervals.  Dust, if allowed to accumulate there, may cause heating inside, which
leads to functional trouble. The interval, which can vary with the location of your projector, is about 100 hours.
• Do not damage the cabinet by scratching it or allowing hard objects to hit it. This can scratch the projector.
• Consult your dealer/distributor about cleaning the inside of the projector.
NOTEDo not allow insecticide or other volatile liquid to splash on the cabin\
et, lens or screen. Also, do not allow any
rubber or plastic object to remain in contact with the cabinet for a long time. The coating may deter\
iorate or
peel off.
5-2. Cleaning the Lens
Clean the lens the same way as with camera lens (using a commercially available camera blower or cleaning paper for
glasses). Take care not to damage the lens when cleaning.
5.
Maintenance of Your
Projector 
						

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5. Maintenance of Your Projector
5-3. Replacing the Air Filter
Air filters are attached over the air inlet of the projector to prevent dust. Replace air filters periodically to maintain the projectors
performance.
W ARNING:
• When replacing air filters, turn off the projector and shut down the AC power to the projector using a circuit breaker.
• Dust in air filters will hinder ventilation of the projector, lead to a rise of the internal temperature and may cause a fire  or
malfunction.
NOTEPlease purchase the replacement air filter at your dealer/distributor. Specify NC-80AF01 (for the air inlet of
the lamp) or NC-80AF02 (for the air inlet of the projector electric circuit) when you order.
Air inlets for the projector 
electric circuit (side)
Air inlet for the lamp
Air inlet for the projector 
electric circuit (front)
Replacement frequency
Model number
Air inlet
Lamp air inlet NC-80AF01 When replacing the lamp
Projector air inlet NC-80AF02 Every 2,000 hours of usage or 6 months, whichever is earlier 
						

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5. Maintenance of Your Projector
5-3-1. Replacing air filters for the lamp air inlet
Prepare the optional NC-80AF01 to replace air filters for the lamp air inlet. The NC-80AF01 contains six replacement air filters.
T wo air filters are required for the lamp air inlet.
1Tu rn off the power to the projector.
2Open the air inlet cover.
The air inlet cover is fastened by a leg on the top left corner of the cover when the project is facing towards you. Lift the
leg up to open the air inlet cover.
NOTET ake care not to damage the upper surface of the projector when opening the air inlet cover.
3Remove the filter cover.
Push the latch until it clicks to unlock the filter cover.
Latch 
						

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5. Maintenance of Your Projector
4Replace with new air filters.
Look for an arrow indicating the installation direction on the side of the air filter. Place the filter so that the arrow is pointing
down at the projector.
5Mount the filter cover.
Align two fasteners on the filter cover to holes on the projector, and push in until the latch clicks to mount the filter cover .
Latch 
						

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5. Maintenance of Your Projector
6Close the air inlet cover.
Fasten the air inlet cover by inserting the protrusion on the top left leg into the hole on the projector when the projector is
facing towards you.
This completes replacement of the air filters for the lamp air inlet.
5-3-2. Replacing air filters for the projector air inlet on the front
Prepare the optional NC-80AF02 to replace air filters for the projector air inlet on the front. The NC-80AF02 contains four
replacement air filters. Two air filters are required for the projector air inlet on the front.
1Tu rn off the power to the projector.
2Remove the air inlet cover.
Push the latch until it clicks to unlock the air inlet cover. The air inlet cover is attached to the projector by the bottom
edge.
Latch
NOTET ake care not to drop the cover when removing the air inlet cover. 
						

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5. Maintenance of Your Projector
3Remove the filter cover.
Push the latch until it clicks to unlock the filter cover.
Latch
4Replace with new air filters.
Look for an arrow indicating the installation direction on the side of the air filter. Place the filter so that the arrow is pointing
down at the projector.
5Mount the filter cover.
Align two fasteners on the filter cover to the holes on the projector, and push in until the latch clicks.
Latch 
						

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5. Maintenance of Your Projector
6Mount the air inlet cover.
Align the catches on the bottom of the air inlet cover with the protrusions on the projector, and push in until the latch
clicks to mount the air inlet cover.
Latch
This completes replacement of the air filters for the projector air inlet on the front.
5-3-3. Replacing air filters for the projector air inlets on the side
Prepare the optional NC-80AF02 to replace air filters for the projector air inlets on the side. The NC-80AF02 contains four
replacement air filters. Two air filters (one each for two air inlets) are required for the projector air inlets on the side.
1Tu rn off the power to the projector.
2Remove the filter cover.
Push the latch until it clicks to unlock the filter cover.
Latch 
						

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5. Maintenance of Your Projector
3Replace with new air filters.
Look for an arrow indicating the installation direction on the side of the air filter. Place the filter so that the arrow is pointing
down at the projector.
AIR
F LOW
AIR
FLOW
4Mount the filter cover.
Align two fasteners on the filter cover to the holes on the projector, and push in until the latch clicks.
Latch
5Repeat Step 2 to 4 to replace one more air filter.
This completes replacement of the air filters for the projector air inlets on the side. 
						

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-
6-1. Troubleshooting
Before asking for repair, please check your connection, settings and operation once again. If th\
e trouble cannot be corrected,
please contact your dealer/distributor for instructions or repair.
6-1-1. Problems and where to check
Problem
The projector cannot be turned on. 
The image cannot be projected. 
The image is distorted. 
The image is blurred. 
Video image is disturbed Check these items
Check to see if AC power is supplied to the projector.
Make certain that the projector power switch is ON. 
Check to see whether the panel key lock function is activated. If so, th\
e main units control buttons 
are locked and do not work.
Is the temperature inside the projector too high? When the inside temperature is too high, the 
protective function does not allow your projector to be turned on. Wait some time and then turn it on. 
Check to see if the connected input has been selected. 
Check to see if a cable is properly connected to the input terminal. 
Check to see whether the douser is closed. 
Check to see if the settings are all adjusted properly. 
Check to see if the protractor is properly set up. 
Make certain that the lens is properly focused. 
Check to see if the screen and a projector are installed at correct angles. 
The projection distance may be larger than the focusing range. 
See if the lens and other parts have condensation on them. If the projector is turned on in a 
warm place after storage in a cold place, the lens and other optical compon\
ents inside may 
develop condensation. In such a case, please wait several minutes until \
the condensation 
disappears. 
Check whether the signal cable connected to the projector is disconnected.
6.
Appendix