Table of Contents
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Major operations and their functions
Front View
1
2
ACCESS
POWER
1. POWER button
When pressing this button while the MAIN switch on
the rear of this unit is set to ON, the power turns on
and the button lights. When the button is pressed
again, the unit will be in standby and the light will
turn off. When the unit is in operational transition such
as booting, the button will flash and other operations
are not accepted.
2. ACCESS indicator
Illuminates during access to hard disk drive or Com-
pact Flash Card.
3. Camera number buttons (1 to 9)
Press the button to display the image on the monitor
of the camera connected to that channel.
4. TIMER button
When this button is pressed the unit is set to timer
recording/standby and the button flashes. When
pressing this button for more than 1 second, timer
recording/standby is cancelled and the button turns
off.
5. REC/STOP button
When this button is pressed, recording starts and the
button lights. When pressing the button for more than
1 second, the recording stops and the light turns off.
When pressing this button for more than 1 second
during alarm recording, recording stops. During timer
recording, recording will not stop even if the button
is pressed.
6. SHUTTLE ring
Used to set various menus and search functions,
adjusting the playback speed, and reversing or for-
warding the image.
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12
3
5
1
2
3
4
SPLIT/
ZOOM
SEQUENCE
DIGITAL RECORDER DX - TL900U
8
9
6
7
8
9
PRE ALARM
M-DET
EMERGENCY
LOCK
10
11
12
13
14
7. JOG dial
Used to set various menus and search functions,
forwarding or reversing the image during playback
(field-by-field).
8. SPLIT/SEQUENCE button
Press the button to display SPLIT4 ,SPLIT9 screen
or SEQUENCE screen setting on multiplexer func-
tions.
9. ZOOM button
When pressing this button once during single screen
display, the screen is magnified by 100%. In the same
way, pressing the button twice magnifies the screen
by 200% and pressing the button three times magni-
fies the screen by 400%. During single screen dis-
play, the magnification center point (X) is displayed
on the center of the screen. Pressing a camera
number button (1, 2, 3, or 4) will move the screen
according to the magnification center point as the
axis.
10. PRE ALARM indicator
Flashes during pre-alarm recording and illuminates
during pre-alarm recording stand-by mode.
11. M-DET indicator
Illuminates when the motion detection function is on.
The indicator flashes when motion detection is in op-
eration.
12. EMERGENCY indicator
Flashes during emergency recording and lights when
recording is completed.
13. LOCK indicator
Illuminates when simple lock or password lock is on.
4
5
6
7
REC/STOP
CLEAR/
REW
TIMER
ENTER/
FF
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