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 camera operating, fully
cover the camera lens with a piece of black
paper or cloth.
Press ARM LIGHT on the camera control
panel and EXIT on the projectors control
panel simultaneously.You can not use the remote control buttons.
• Do not press ARM LIGHT and EXIT buttons simultaneously if the camera lens is not
covered.  Doing so will not only erase the white spot correction data already set but also
result in parts that are displayed normally being corrected.  Also be careful if the camera
input mode is not selected. Press both sidesCamera lens
Correcting illuminated defects
Control panel
(Main unit side)
Camera control panel
Note 
						

							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 call the dealer.
The lamp turns off or does not light up. →The projector will return to the standby mode in about 2 minutes.
If the projector does not operate normally when the power is switched on again, 
the lamp is at the end of its duration life or the unit has a fault.
Lamps duration life is over, replace the lamp with a new one.
Unplug the power cord and call the dealer.The power turns off or does not come on. → The inside is too hot, or the projector has been working in an area of high 
temperature.
Place the projector correctly so the intake and exhaust fans holes are not covered.
Turn the projector off, and leave it for a while, and turn it on again.
Clean the air filter.
* The icon           appears before the power turned off.
* The projector returns to the standby mode after the fault display has been shown 
for about 2 minutes.The power turns off or does not come on.
→ Trouble with the cooling fan.
Unplug the power cord and call the dealer.
* The icon           appears before the power turned off.
* The projector returns to the standby mode after the fault display has been shown 
for about 2 minutes.
The power turns off or does not come on. →The lamp cover is not properly attached.
Unplug the power cord and reattach the lamp cover.
* The icon           appears before the power turned off.
* The projector returns to the standby mode after the fault display has been shown 
for about 2 minutes.
If there is some problem inside the
projector, the indicators light up or blink.
Trouble indications
• If abnormality occurs while operating, unplug the power cord.
• When reinserting the power cord before the lamp has cooled, please wait until the lamp has cooled
sufficiently before use. When the lamp is at a high temperature, it may not light and the duration life will
be shortened.
Indicators
Control panel
(Main unit side)
66
63
67
Notes 
						

							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 from the air filter cover, air filter and
filter frame.
Be careful that the air filter is not sucked into the
vacuum cleaner.
Detach the air filter.Detach the air filter from the air
filter cover.
The air filter cover, air filter and
filter frame can be disassembled.
Filter frame
Air filter
Cleaners nozzle Air filter coverTake off the air filter cover.The filter is on the right side of the projector.
Pull the bottom side of the cover upward to
remove the filter cover. 
						

							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 air filter is damaged, contact your store of
purchase and replace it with a new one.  Using a
damaged air filter will cause dust or dirt to get
inside the projector and onto the images.
Assemble the air filter.Place the air filter in the air filter cover,
then insert the four tabs on the filter
frame into the holes in the air filter
cover.
Filter frame Air filter
Air filter cover
Mount the air filter cover.Insert the top of the air filter cover into the
projector first, then press on the bottom side
to install it.
Notes 
						

							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 filterTo maintain the efficiency of the projector, replace the intake and exhaust fans
about every two to three years.
Ask the dealer for the replacement.
CAUTION
If you use the projector mounted on the ceiling,
ask the dealer to carry out the maintenance such
as cleaning. 
						

							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 handle with
care to avoid injury due to broken pieces and
contact your dealer for repair service. The lamp will eventually begin to project dark or
dull pictures and finally will not light up.
(Lamps life length depends on the use condition.)
In such a case, replace the lamp with new one.
Unplug the power cord.
Wait until the lamp gets cold enough.
Take off the lamp cover on the
bottom panel.
Loosen two screws, and pull off the lamp cover.
Lamp coverPull out the lamp.Loosen the two fixing screws, and lift up the handle
to pull out the lamp. 
						

							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 a new lamp when replacing it.
• The lamp is made of glass and is very fragile.
Do not touch the lamp with your bare hands
and do not jolt or damage it. Do not use an
exhausted lamp.
• Dispose the exhausted lamp as toxic wastes.
Load a new lamp.Slide until it hits the bottom and tighten the two fixed screws.
Attach the lamp cover.Slide the cover in place and tighten two screws.
Reset the lamp timer.Refer to the lamp instructions for resetting.
41
Notes 
						

							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 RGB input image does
not appear.
The image is blurred.
Focusing is uneven.
The picture is dim.Cause
• The power cord is disconnected.
• The lamp cover is not attached correctly.
• The ambient temperature of the projection room is too high.
• The lens cover is on.
• The wrong input is selected.
• The muting mode is on.
• The Brightness adjustment is at its darkest.
• The source is not correctly connected to the projector.
• The wrong input is selected.
• The muting mode is on.
• The sound volume is at the minimum.
• The source is not correctly connected to the projector.
• Input is not set so that it can be selected with the INPUT button.
By default, only the Analog RGB(1) and Video input modes can be selected.• The COMPUTER IN 1 connectors input setting is wrong.
• The COMPUTER IN 2 connectors input setting is wrong.
• The signal cable type is wrong.
• The COMPUTER IN 2 connectors input setting is wrong.
• The signal cable type is wrong.
• The lens is dirty.
• The picture is out of focus.
• The projection distance is not appropriate.
• The projecting light is not hitting the screen squarely.
• The Brightness, Contrast, Sharpness or Phase adjustments
are not correct.
• The Brightness or Contrast adjustments are not correct.
• The lamp life is ending.Correction
Firmly plug in the power cord.
Attach the cover correctly.
Lower the ambient temperature of the projection room,
and turn the power on.
Take off the lens cover.
Select the input source correctly.
Press MUTE to restore the picture.
Make the Brightness adjustment.
Connect the source correctly to the projector.
Select the input source correctly.
Press MUTE to restore the sound.
Adjust the sound volume.
Connect the source correctly to the projector.
Set from the menu screen so that the source can be
selected with the INPUT button.
At the menu screen, set for the proper input signal type.
At the menu screen, set for the proper input signal type.
Use a proper signal cable.
At the menu screen, set for the proper input signal type.
Use a proper signal cable.
Clean the lens with a blower or lens cleaner, etc.
Focus the picture.
Adjust the distance properly.
Adjust the projecting direction so that the light hits the
screen squarely.
Make the Picture adjustments.
Make the Picture adjustments.
Replace the lamp.
Page
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							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 life is ending.
• The remote control is not facing the remote sensor.
• The remote control is too far.
• There is an obstruction between the remote control and the remote
sensor.
• The batteries are exhausted.
• The USB cable is not properly connected.
• The computer or OS is not compatible.
• The batteries are exhausted.
• The lens is dirty.
• The picture is out of focus.
• The light is not on.
• Image is being affected by fluorescent light in the room.
• The images number of frames is low. This is not a malfunction.
• The images number of frames is low. This is not a malfunction.Correction
Make the Picture adjustments.
Replace the lamp.
Face the remote control transmitter toward the remote sen-
sor on the projector.
Operate within about 5 meters.
Remove the obstacle.
Replace the batteries.
Connect the USB cable properly.
The remote control mouse function is not available.
Replace the batteries.
Clean the lens with a blower or lens cleaner, etc.
Focus the picture by turning the focus ring.
Turn on the light.
Set the shutter speed on the menu screen.
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							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. data 4 -
T.M.D.S. data 4 +
DDC clock
DDC data
Analog vertical sync signal
T.M.D.S. data 1 -
T.M.D.S. data 1 +
T.M.D.S. data 1/3 shield
T.M.D.S. data 3 -
T.M.D.S. data 3 +
+5V power
GND (+5V, H Sync & V Sync)
Description
Hot plug detection
T.M.D.S. data 0 -
T.M.D.S. data 0 +
T.M.D.S. data 0/5 shield
T.M.D.S. data 5 -
T.M.D.S. data 5 +
T.M.D.S. clock shield
T.M.D.S. clock +
T.M.D.S. clock -
Analog Video signal (Red)
Analog Video signal (Green)
Analog Video signal (Blue)
Analog horizontal sync signal
Analog GND (R,G & B)
Pin No.
16
17
18
19
20
21
22
23
24
C1
C2
C3
C4
C5
MONITOR OUT COMPUTER IN 1
5 11015 11
6
COMPUTER IN 2C5C3 24 C4
C1 C2
8
1
16
17
9
Input signal
Analog R, G, B signal: 0.7V(p-p) 75Ω
Horizontal sync signal:
TTL level (positive/negative polarity)
Vertical sync signal:
TTL level  (positive/negative polarity)
Y signal: 1.0V(p-p) 75Ω
PB, P
R signal: 0.7V(p-p) 75ΩAnalog input signal
Analog R, G, B signal: 0.7V(p-p) 75Ω
Horizontal sync signal:
TTL level (positive/negative polarity)
Vertical sync signal:
TTL level  (positive/negative polarity)
*
: Do not connect anything. Mini D-sub 15pinconnector DVI ANALOG & DIGITALconnector
Pin assignment of COMPUTER IN, MONITOR OUT connector