Acer P244W, Service Manual

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3.2.2 Signal interface
Item Condition Spec OK N.A Remark
15-pin D-Sub
Color: Black
Length: 1800 +/- 30
mm
√
Signal Cable
24-pin DVI-D
Color: Black
Length: 1800 +/- 50
mm
√
15-pin D-sub connector See Note-1
√
For 15-pin D-sub
24-pin DVI-D connector
See Note-2
√
For 24-pin DVI-D
Pin assignment
19-pin HDMI connector See Note-3
√
For 19-pin HDMI
Signal type Separate analog R/G/B
√
For 15-pin D-sub
Level 700 mV (peak to peak)
√
Analog input
Impedance 75 Ohms +/- 1.5 Ohms
√
Signal type
Separate H/V-sync
Composite H/V-sync
(Positive/Negative)
√
For 15-pin D-sub
Level
Logic High: 2.4V ~
5.5V
Logic Low: 0V ~ 0.5V
(TTL level)
√
Refer to VESA
VSIS Standard
V1R1
Impedance
Minimum 2.2K Ω (pull
down)
√
10K Ω for
application
Sync input
Sync Pulse Width (SPW) 0.7 µ s < H-SPW
1H < V-SPW
√
Level 600mV for each
differential line
√
Impedance 50 Ohm TDR Scan
needed for DVI cable
and interface board
√
Digital input
Impedance 50 Ohm TDR Scan
needed for DVI cable
and interface board
√