Toshiba Projector Tlp 780U User Manual

61
Document
imaging camera
KEYSTONE
AUTOSET
EXIT
ON / STANDBYVOL / ADJ
ENTER
MENU
INPUT
FAN
TEMP
LAMP
ON
FOCUS
12
ARM LIGHT
EXIT
2
OVERLAY
CAMERAARM LIGHT
LOCKW.BALANCE
CAMERAGAIN
For the CCD image sensor used in the camera unit, in rare cases some of the pixels
may be disturbed due to the influence of cosmic rays, etc.  This disturbance may
cause white spots to appear on the picture.
If white spots appear on the document camera image, use the procedure described
below to correct it.
With the document...

62
Maintenance
KEYSTONE
AUTOSET
EXIT
ON / STANDBYVOL / ADJ
ENTER
MENU
INPUT
FAN
TEMP
LAMP
ON
Or
(Lit in red)(Off)ON
LAMP
TEMP
FA N
(Lit in red)(Lit in red)ON
LAMP
TEMP
FA N
(Flashing 
  in orange)
ON
LAMP
TEMP
FA N
(Lit in red)ON
LAMP
TEMP
FA N
(Lit in red)
Or(Lit or flashing 
     in red)
(Lit or flashing
      in orange)
Or
Or
Or
(Lit in red)(Lit in red)
(Lit in green)
(Lit in green) (Lit in orange)
ON
LAMP
TEMP
FA N(off)
The power does not come on.
→Malfunction of the unit.
Unplug the power cord and...

63
Maintenance
1234
Continued
Air filter cleaning
CAUTION
If you use the projector mounted on the ceiling,
ask the dealer to carry out the maintenance such
as cleaning.The filter inside the air filter cover is the part
to shut out dusts or dregs.
Do not use the projector with the filter taken
off.
We recommend you to clean the air filter
frequently. (The cleaning period is once per
about 50 hours).
Unplug the power cord.
Clean the air filter.
Use a vacuum cleaner to carefully remove any
dust and dirt...

64
Maintenance
65
2 1
Air filter cleaning (continued)
• When the air filter is dusty, the ventilation is
impaired. This causes the temperature inside
the projector to rise, and may damage the unit.
• Attach the air filter cover firmly after the
cleaning.   If it is not set correctly, the dusts will
enter and they will be projected and overlapped
on the picture.
• If you wash the air filter with water, be sure to let
it dry fully before reinstalling it.  Using it damp will
result in malfunction.
• If the...

65
Maintenance
Lens and main unit cleaning
Cleaning the lens• Use a blower or a lens cleaner to clean the lens.
• Never rub or tap the lens with a hard object as the
lens surface is fragile.Cleaning the main unit• Pull out the power cord before cleaning.
• Use a soft cloth to wipe off stains from the surface.
• To remove difficult stains, use a soft cloth slightly
moistened with a weak solution of synthetic
detergent and water, and finish with a soft, dry
cloth.
Replacing the intake, exhaust fans and air...

66
Maintenance
1324
2 1
2
1
Continued
Lamp replacement
CAUTION
• If you use the projector mounted on the ceiling,
ask the dealer to carry out the maintenance
such as cleaning or replacement of the lamp.
• When replacing, always use lamp TLPL78
(sold separately).  For detail, refer to the lamp
instruction.
• If you have been using the projector, the lamp
will be very hot, and may cause burn injuries.
Wait for the lamp to cool (for longer than 1 hour)
before replacing it.
• If the lamp should break, please...

67
Maintenance
567
32
1
Lamp replacement (continued)
• When the CALL button is pressed, the Lamp
time (the approximate amount of time the lamp
has been used) is displayed.
• The lamp should be replaced if the total work-
ing time exceeds about 1,000 hours.
When the Lamp time is displayed 1000 hours,
the icon          and a message appear.  They will
disappear when you do some operation.
• Attach the lamp cover firmly after replacing the
lamp.  If it is not set correctly, the power will not
turn on.
• Use...

68
Others
1967196230374522
2525
303732226531234523454545301818454566-
-
Continued
Before calling service personal
Check the following points before asking for support service.  Refer also to Trouble  indications.
Symptom
The power does not come on.
The power turns off while
using the projector.
No image appears.
No sound is heard.
Desired input source cannot be
selected by the INPUT button.
Analog RGB(1) input or Y/P
B/
P
R input colors are not right.
Analog RGB(2) input image
does not appear.
Digital...

69
Others
3915655756454866161615
Before calling service personal (continued)
Symptom
The color is faint.
The tint is not good.
The remote control does not
work.
Mouse function cannot be used
from the remote control unit.
Document camera image is
blurry.
Document camera image flickers.
Document camera image
movement is awkward.
Horizontal stripes appear when
document projected with the
document camera is moved.Cause
• The Color, Tint, R-Level, G-Level or B-Level adjustments
are not correct.
• The lamp...

70
Others
Pin No.
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
Description
RGB input Y/P
B/PR input
Video signal (Red)
Color difference signal (P
R)
Video signal (Green) Luminance signal (Y)
Video signal (Blue)
Color difference signal (P
B)
GND*
GND*
GND (Red) GND (P
R)
GND (Green) GND (Y)
GND (Blue) GND (PB)
N.C*
GND*
GND*
DDC data*
Horizontal sync signal*
Vertical sync signal*
DDC clock*
Pin No.
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
Description
T.M.D.S. data 2 -
T.M.D.S. data 2 +
T.M.D.S. data 2/4 shield
T.M.D.S....