CTX PV722E Service Manual page 19

Service Manual
PV722i /PV722E
3.3 Plug & Play
3.4 Scanning characteristics
Horizontal frequency
Refresh rate
3.5 USB 2.0 Module (AS0USB-001)
The USB 2.0 Hub can detect the status of Host Computer (USB V
or turn off it, to reach the purpose of saving power.
It have three conditions to active the USB Hub power(the green light will turn on).
1) 60W adaptor power on and plug-in the USB 2.0 Hub.
2) Plug-in the USB cable between host computer and USB 2.0 Hub.
3) Turn on PC power (then PC start boot up and into Windows Platform properly.)
3.5.1 Input power
3.5.2 Down stream port output power
3.5.3 Overcurrent detection :
3.5.4 Bus transation :
speed(1.5Mbps)
3.6 Audio Module(LKC17SS2CC03)
2.2.1 Input Level : 1Vrms(typ),2Vrms(max)
2.2.2 Output Power : 1W * 2 (10% THD,1KHz)
2.2.3 Total Harmonic Distortion (THD).....0.3%(0.5W*2, 1KHz)
2.2.4 Frequency Response ± 3dB : 330 ~ 20KHz
VESA DDC 2B, DVI support DDC 2B+ standard
DDC 2B data transmission only for I
VGA
30KHz to 80KHz
59Hz to 75Hz
12V (Self power mode only)
5V ± 5% ( > 4.75V, < 5.25V)
0.6 to 1.25A ( 0.9A typ.) (The USB standard defines the max.
current is 0.5A for each port)
High speed(480Mbps),
-18-
C
C
C
2 interface card.
C BUS
DVI
30KHz to 66KHz
59Hz to 61Hz
power) to turn on the USB Hub
BUS
full speed(12Mbps),
T X
T X
T X
low