Acer X203H Service Manual page 7

CCFL operation range
CCFL Frequency
Power cord
3.2.2 Signal interface
Item
Signal Cable
Pin assignment
Analog input
Sync input
Digital input
Note-1: The pin assignment of 15-pin D-sub connector is as below,
IEC1000-4-5 (Surge)
90 ~ 264VAC
90 ~ 264VAC
Condition
15-pin D-Sub
24-pin DVI-D
15-pin D-sub
connector
24-pin DVI-D
connector
19-pin HDMI
connector
Signal type
Level
Impedance
Signal type
Level
Impedance
Sync Pulse Width
(SPW)
Level
Impedance
Common: 2KV,
Differential: 1KV
LGD: 2.5mA~8.0mA
SEC: 3.0mA~8.5mA
40KHz ~ 70KHz
Color: Black
Length: 1800 +/- 50
mm
Spec
Color: Black
Length: 1800 +/- 30
mm
Color: Black
Length: 1800 +/- 50
mm
See Note-1
See Note-2
See Note-3
Separate analog R/G/B √
700 mV (peak to peak) √
75 Ohms +/- 1.5 Ohms √
Separate H/V-sync
Composite H/V-sync
(Positive/Negative)
Logic High: 2.4V ~
5.5V
Logic Low: 0V ~ 0.5V
(TTL level)
Minimum 2.2K (pull
down)
0.7µs < H-SPW
1H < V-SPW
600mV for each
differential line
50 Ohm TDR Scan
needed for DVI cable
and interface board
- 7 -
√
√
Depends on panel
source
√
Depends on panel
source
√
OK N.A Remark
√
√
√
For 15-pin D-sub
√
For 24-pin DVI-D
√
For 19-pin HDMI
For 15-pin D-sub
√
For 15-pin D-sub
Refer to VESA
√
VSIS Standard
V1R1
√
10K for
application
√
√
√