Toshiba Projector Tlp 551 User Manual

61
Maintenance
CONTENTSAir 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 clean the air filter
frequently. (The cleaning period is once per
50 hours approximately).2 1
Unplug the power cord.
Take off the front cover.
Slide the front cover rightward side for
about 3 mm,...

62
Maintenance
CONTENTSAir filter cleaning (continued)
Mount the air filter and the filter frame.
Place the air filter in the projector, then insert the four tabs on the filter frame
into the holes in the projector.
Mount the front cover.
Insert the hooks of the front cover into the projector first, then slide it to the
lens side to fix it.
5
6
2
1
Air filter
Filter frame
Notes
•When the air filter is dusty, the ventilation is
impaired. This causes the temperature inside the
projector to rise, and may...

63
Maintenance
CONTENTS
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.
Lens and main unit cleaning
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...

64
Maintenance
CONTENTSLamp replacement
The lamp will eventually begin to project dark
or dull pictures and finally will not light up.
(Lamp’s life depends on operating
conditions.) In such a case, replace the lamp
with new one.
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 “TLPL55”
(sold separately). For details, refer to the lamp
instruction.
•If you have been using the...

65
Maintenance
CONTENTS
Notes
•When the CALL button is pressed, the “Lamp
time” (the approximate amount of time the lamp
has been used) will be displayed. 
39
•The lamp should be replaced if the total working
time exceeds about 1,500 hours.
When the “Lamp time” is displayed as 1500 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...

66
Others
CONTENTSBefore calling service personal
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 input or Y/P
B/PR
input colors are not right.
The image is blurred.
Focusing is uneven.
The picture is dim.
The color is faint.
The tint is not good.
Cause
• The power cord is disconnected.
• The lamp cover is not attached correctly.
• The ambient temperature of the...

67
Others
CONTENTS
Symptom
The remote control does not
work.
The presentation made cannot
be used from the remote
control unit.
Document camera image is
blurry.
Document camera image
flickers.
Cause
• The remote control is not facing the remote sensor.
• The remote control is too far away.
• 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...

68
Others
CONTENTS
Mini D-sub 15pin
connector
Pin assignment of COMPUTER connector
COMPUTERInput 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
P
B, PR signal: 0.7V(p-p) 75Ω
Pin No.
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
RGB input
Video signal (Red)
Video signal (Green)
Video signal (Blue)
GND
GND
GND (Red)
GND (Green)
GND (Blue)
N.C
GND
GND
DDC data
Horizontal...

69
Others
CONTENTS
TEXT70 640 x 350 50 640 14 96 800 31.469 70.086 25.175 59 350 38 2 449
TEXT70 640 x 400 50 640 14 96 800 31.469 70.086 25.175 34 400 13 2 449
TEXT85 640 x 350 96 640 32 64 832 37.861 85.080 31.500 60 350 32 3 445
TEXT85 640 x 400 96 640 32 64 832 37.861 85.080 31.500 41 400 1 3 445
NEC PC98 24k 640 x 400 85 640 59 64 848 24.820 55.900 21.047 25 400 11 8 444
VGA60640 x 480 48 640 16 96 800 31.469 59.940 25.175 33 480 10 2 525
VGA72640 x 480 128 640 24 40 832 37.861 72.809 31.500 28 480...

70
Others
CONTENTSApplicable signal (continued)
Timing chart (Continued)
**SXGA1152x864 75Hz 1152 x 864 256 1152 64 128 1600 67.500 75.000 108.000 32 864 1 3 900
**SXGA1280x960 60Hz 1280 x 960 312 1280 96 112 1800 60.000 60.000 108.000 36 960 1 3 1000
**SXGA1280x960 85Hz 1280 x 960 224 1280 64 160 1728 85.938 85.002 148.500 47 960 1 3 1011
**SXGA1280x1024 60Hz 1280 x 1024 248 1280 48 112 1688 63.981 60.020 108.000 38 1024 1 3 1066
**SXGA1280x1024 75Hz 1280 x 1024 248 1280 16 144 1688 79.976 75.025...