Toshiba Projector Tlp 681U User Manual

CONTENTS41Maintenance
Air filter, lens and main unit
cleaning
CAUTION
If you use the projector mounted on the
ceiling, ask the dealer to carry out the
maintenance such as cleaning.
Cleaning the air filter
The filter under the air filter cover is the device
to shut out dusts or dregs.
Do not use the projector with the filter taken off.
Give a frequent clean especially to the air filter.
(The cleaning period is once per about 50
hours).
1) Unplug the power cord.
2) Take off the air filter cover.
The filter...

CONTENTS42Maintenance
Lamp replacement
The lamp will eventually begin to project dark
or dull pictures and finally will not light up.
(Lamp’s life length depends on the use
condition.) 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
“TLPLF6”  (sold separately). For detail,
refer to the lamp instruction.
• If you have been...

CONTENTS43Others
Before calling service
personnel
Check the following points before asking for
support service.
Refer also to “Trouble indications”. 
40
The power does not come on.
  •The power cord is disconnected.
→Firmly plug in the power cord. 
19
  •The lamp cover is not attached correctly.
→Attach the cover correctly. 
42
The power turns off while using the
projector.
  •The ambient temperature of the
projection room is too high.
→Lower the ambient temperature of the
projection room, and turn the...

CONTENTS44Others
(Continued)
Image does not appear when using the
document imaging camera.
  ¥ The wrong input is selected.
®Select the correct input source. 
37
Image is out of focus or not clear when
using the document imaging camera.
  ¥ The camera lens is dirty.
®Clean the camera lens.
Use a lens cleaner to clean the lens. 41
  ¥ The document imaging camera is out of
focus.
®Focus the document imaging camera.
38
  ¥ Focus between main unit and screen is
not correct.
®Focus the picture by turning the...

CONTENTS45Others
Input signal
Mode determination and signal system
 : full compatible : dot resizing display
 : simplified display : high resolution serial transfer control
NTSC
PAL/SECAM
Digital broadcasting
Digital broadcasting
Digital broadcasting
Hi-Vision/Digital broadcasting
PC98 Standard
VGA-350
VGA-400
VGA 85Hz-1
VGA 85Hz-2
VGA 60Hz
VGA 72Hz
VGA 75Hz
VGA 85Hz-4
MAC-13”
SVGA 56Hz
SVGA 60Hz
SVGA 72Hz
SVGA 75Hz
SVGA 85Hz
MAC-16”
XGA 43Hz interlace
15.734
15.625
15.750
31.500
47.500
33.750
24.830...

CONTENTS46Others
SignalDefault Synchronizing Resolution (line) Frequency
Mode SystemHorizontal
(kHz)Remarks
680/681
model Vertical
(Hz)Horizontal Vertical H/V
(Continued)
 : full compatible : dot resizing display
 : simplified display : high resolution serial transfer control
XGA60
XGA70
XGA75
XGA85
MAC19
SXGA75-1
MAC21
SXGA60-1
SXGA85-1
SXGA43i
SXGA60-2
SXGA75-2
SXGA85-2
UXGA60
UXGA65
UXGA70
UXGA75
XGA 60Hz
XGA 70Hz
XGA 75Hz
XGA 85Hz
MAC-19”
SXGA 75Hz
MAC-21”
SXGA 60Hz
SXGA 85Hz
SXGA 43Hz interlace
SXGA...

CONTENTS47Others
(Continued)
Signal assignment
D-SUB 15 pin shrinking terminal
Input Signal
Video signal
Analog 0.7V(p-p) 75W
Horizontal synchronizing signal
TTL level (positive/negative
polarity)
Vertical synchronizing signal
TTL level  (positive/negative
polarity)
Composite synchronizing signal
TTL level
Pin arrangements
Pin No.
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
Video input (Red)
Video input (Green)
Video input (Blue)
N.C
GND
GND (Red)
GND (Green)
GND (Blue)
N.C
GND
GND
N.C
Horizontal synchronizing/...

CONTENTS48Others
RGB signal defaults
(Continued)
Ver Sync
The following signals are factory set as defaults
in each mode. However, some computers may
have different timings than those in the chart.
Make the necessary adjustments if the picture
has flickers or is blurred.
Timing chart
Video Timing  (Horizontal)
Video
Hor SyncVideo Timing  (Vertical)
NEC24k
TEXT70
TEXT70
TEXT85
TEXT85
VGA60
VGA72
VGA75
VGA85
MAC13
SVGA56
SVGA60
SVGA72
SVGA75
SVGA85
MAC16
XGA60
XGA70
XGA75
XGA85
MAC19
640 x 400
640 x 350...

CONTENTS49Others
Adjustments with RS-232C
Conditioning of the Projection Unit can also be
done by a computer via the RS-232C, as well
as by the remote control.
Mini DIN 8-pin
(Main Unit)
Interface format
Command list
(Continued)
Classification
NORMAL
NORMAL
NORMAL
NORMAL
NORMAL
NORMAL
NORMAL
NORMAL
NORMAL
NORMAL
NORMAL
NORMAL
RESIZE
RESIZE
RESIZE
RESIZE
RESIZE
CAMERA
CAMERA
CAMERA
CAMERA
CAMERA
CAMERA
ADJUST
ADJUST
Command
POF
PON
MOF
MON
AON
DOF
DON
FOF
FON
IN1
IN2
IN3
RS0
RS1
RS2
RS3
RS4
CW0
CW1
CS0...

CONTENTS50Others
(Continued)
Classification
ADJUST
ADJUST
ADJUST
KEYSTONE
KEYSTONE
Image
Image
Image
Image
Image
Picture
Picture
Picture
Picture
Picture
Picture
Picture
Picture
Picture
Audio
Audio
Audio
Default
Default
Default
Command
ALF
AU P
ADW
PKA
PKS
PAT
PVP
PHP
PPH
PCK
VBR
VCL
VCN
VSH
VTN
VLB
VLG
VLR
CGN
VOL
VTR
VBS
LJP
LEN
LFR
Meaning
Adjustment value decrease
Adjustment value increase
Adjustment value decrease
Keystone automatic adjustment
Keystone manual adjustment
Panel automatic adjustment...