Electrical Characteristics; Input Signals; Signal Level; Power Supply - NEC LCD1550X Service Manual

3. Electrical Characteristics

3.1 Input signals

Video signal
Sync signal

3.2 Signal level

Signal name
Horizontal frequency
Vertical frequency
Video clock frequency
Sync (TTL High level)
Sync (TTL Low level)
Analog video signal

3.3 Power Supply

Input Voltage
Frequency
Power Consumption(max)
AC Leakage current
Inrush current (cold start)

3.4 Power management

This function conforms DPMS of VESA, and International Energy Star Office Equipment program.
Table 3.4.1 . Power Management condition and status for ANALOG Input mode
DPMS Display
On state normal
No display
No display
Active off
No display
Complete No display
Table 3.4.2 Power Management condition and status for DIGITAL Input mode
DPMS Display
On normal
Active OFF No Display
Complete No Display
Analog RGB / Digital TMDS
Composite Sync(Negative/ Positive)
Separate Sync (Negative/ Positive)
Sync-on green
spec
min Typ. max
30.0
50 75.1 Hz
25.1 78.8 MHz
2.5 5.0
0 0.8
0.6 0.7 1.0
90 to 264VAC
47 to 53 / 57 to 63Hz
38W(MAX)
3.5mA
< 50A -p(AC100V) / < 90A
0
Power consumption
LED
i W j
< 38W
GREEN
AMBER < 3W
AMBER < 3W
AMBER < 3W
OFF
LED Power
consumption
i W j
Green < 38W
Amber < 3W
OFF 0W
- 6 -
Unit Remarks
60 kHz
Volt. Terminated 2.2K ohm to GND
Volt. Terminated 2.2K ohm to GND
Vp-p Terminated 75 ohm to GND
-p (AC240V)
0
Recovery
times (sec)
---
Approx. 3sec.
Approx. 3sec.
Approx. 3sec.
0W N/A
Recovery
times
(sec)
DE
N/A Pulses
Approx. No Pulses
3sec.
N/A N/A
H-sync V-sync
ON ON
OFF ON
ON OFF
OFF OFF
N/A N/A
Signals
H-Sync. V-Sync.
ON ON
N/A N/A
N/A N/A
Document No. VSPF-A028