Control Lock Mode; Input Signal Connectors; Analog Video Input; Digital Interface Signals - NEC LCD1550X Service Manual

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4.3 Control Lock Mode

This control completely locks out access to all OSM control functions. When attempting to activate OSM controls
while in the Lock Out mode, a screen will appear indicating the OSM controls are locked out.
To activate the OSM Lock Out function, press both of "select Left" and "select Right " and hold down simultaneously.
In this mode only "OSD Rotation" and "Input 1/2 Select" function by front button are active and the other items are
disable to select.
To resume back to user mode, Press both of "select Left" and "select Right " and hold down simultaneously.

4.4 Input Signal Connectors

4.4.1 Analog Video Input : 15 pin mini D-sub
Table 3. Pin assignment for analog video input connector
PIN NO.
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15

4.4.2 Digital Interface Signals

4.4.2.1 Video Signals and Sync Signals
Signal Format
R,G,B color depth
Dot clock rate
minimum Hsync width
minimum Vsync width
Separate Sync
Composite Sync
GREEN
GROUND
DDC-GROUND
RED VIDEO GROUND
GREEN VIDEO GROUND
BLUE VIDEO GROUND
+5V DDC INPUT
SYNC-GROUND
GROUND
DDC-SDA
H.SYNC
H/V SYNC
DDC-SCL
5
10
15
Panel Link
architecture
8 bit
80MHz maximum
N/A (DE Only)
N/A (DE Only)
- 8 -
Sync On Green
RED
GREEN
W/SYNC
BLUE
|
V.SYNC
1
6
11
TM
T.M.D.S (transition minimized differential signaling)
Document No. VSPF-A028

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