Sharp Projector Dt 500 User Manual

50
Using the “Options” Menu (Continued)
2 22 2
2Selecting the Transmission
Speed (RS-232C)4 44 4
4 Fan Mode Setting
This function changes the fan rotation speed.
Selectable
items
Normal
HighDescription
Suitable for normal environments.
Select this when using the projector at
altitudes of approximately 4,900 feet
(1,500 meters) or more.
When “Fan Mode” is set to “High”, the fan rotation
speeds up, and the fan noise becomes louder.
5 55 5
5Returning to the Default
Settings
Use “All Reset” to initialize all...

Appendix
51
Cleaning the lens
Use a commercially available blower or lens
cleaning paper (for glasses and camera lenses)
for cleaning the lens. Do not use any liquid type
cleaning agents, as they may wear off the
coating film on the surface of the lens.

As the surface of the lens can easily get
damaged, be sure not to scrape or hit the lens.
Cleaning the exhaust and intake vents
Use a vacuum cleaner to clean dust from the
exhaust vent and the intake vent.
Cleaning the projector
Ensure that you have...

52
Maintenance Indicators
About the lamp indicator

When the remaining lamp life becomes 5% or less,  (yellow) and “Change The Lamp” will be
displayed on the screen. When the percentage becomes 0%, it will change to  (red), the lamp will
automatically turn off and then the projector will automatically enter standby mode. At this time, the
lamp indicator will illuminate in red.

If you try to turn on the projector a fourth time without replacing the lamp, the projector will
not turn on.
About the...

Appendix
53
• If the temperature warning indicator illuminates, and the projector enters standby mode, follow the
possible solutions above and then wait until the projector has cooled down completely before plug-
ging in the power cord and turning the power back on. (At least 10 minutes.)
• If the power is turned off for a brief moment due to power outage or some other cause while using
the projector, and the power supply recovers immediately after that, the lamp indicator will illumi-
nate in red and...

54
Regarding the Lamp
Lamp
It is recommended that the lamp (sold separately) be replaced when the remaining lamp life becomes
5% or less, or when you notice a significant deterioration in the picture and color quality. The lamp life
(percentage) can be checked with the on-screen display. (see page 49)

Purchase a replacement lamp of type AN-100LP from your place of purchase, nearest Sharp
Authorized Service Center or Dealer.
Caution Concerning the Lamp
This projector utilizes a pressurized mercury lamp....

Appendix
55
Removing and Installing the
Lamp Unit
• Make sure that you remove the lamp unit by
the handle. Do not touch the glass surface of
the lamp unit or the inside of the projector.
• To avoid injury to yourself and damage to the
lamp, be sure to carefully follow the steps
below.
• Do not loosen other screws except for the
lamp unit cover and lamp unit.
Press SSTANDBY/ON on the pro-
jector or aSTANDBY on the re-
mote control to put the projector
into standby mode.
• Wait until the cooling fan...

56
Regarding the Lamp (Continued)
Remove the lamp unit.• Loosen the securing screws from the
lamp unit. Hold the lamp unit by the
handle and pull it in the direction of the
arrow. At this time, keep the lamp unit
horizontal and do not tilt it.
Resetting the Lamp Timer
Reset the lamp timer after replacing the lamp.
Insert the new lamp unit.• Press the lamp unit firmly into the lamp
unit compartment. Fasten the securing
screws.
Replace the lamp unit cover.• Align the tab on the lamp unit cover (1)
and...

Appendix
57
Connecting Pin Assignments
COMPUTER-RGB Input COMPUTER-RGB/COMPONENT INPUT5 Terminal: 15-pin Mini D-sub female connector
1. Video input (red)
2. Video input (green/sync on green)
3. Video input (blue)
4. Not connected
5. Not connected
6. Earth (red)
7. Earth (green/sync on green)
8. Earth (blue)
9. Not connected
10. GND
11. Not connected
12. Bi-directional data
13. Horizontal sync signal: TTL level
14. Vertical sync signal: TTL level
15. Data clockComponent Input
510 15
1
11
6
1. PR (CR)
2....

58
DTV
•When this projector receives 640K350 VESA format VGA signals, “640K400” appears on the screen.
Computer
Computer Compatibility Chart
• Multiple signal support
Horizontal Frequency: 15-70 kHz,
Vertical Frequency: 45-85 Hz,
Pixel Clock: 12-85 MHz
Sync signal: Compatible with TTL level
The following is a list of modes that conform to VESA. However, this projector supports other
signals that are not VESA standards.
27.0
31.5
37.5
27.0
31.5
37.9
27.0
31.5
27.0
31.5
37.9
26.2
31.5
34.7
37.9
37.5
43.3...

Appendix
59
Troubleshooting
Picure does not appearor projector does not start.
No picture appears (or picture is dark).
Color is faded or poor.
Picture is blurred;noise appears. Problem Check
• Projector power cord is not plugged into the wall outlet.
• Power to the external connected devices is off.
• The selected input mode is wrong.
• Cables incorrectly connected to the projector.
• Remote control battery has run out.
• External output has not been set when connecting notebookcomputer.
• The lamp...