Compaq P1220 Wartungshandbuch PDF herunterladen (Seite 162)

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NOTE

Figure 10

(a) Disconnect and connect the USB cable to the up-

stream port of the display monitor.

(b) Cycle power of the display monitor off then on.

If the mark appears with “Generic USB HUB”, then

enumeration was unsuccessful. Select “Generic USB

HUB” marked with mark and click “Remove” and

“Refresh”. After that, the enumeration is automatically

started.

The enumeration of USB HUB may be necessary for

each USB port on the computer.

Figure 8

3.4 Installation of USB Function

The following procedure permits your computer to recog-

nize or "enumerate"(A USB term) the USB HUB.

1. Power on the display monitor and then the com-

puter.

2. Start "Enumeration" from the Windows

Desktop.

• During the enumeration of USB Hub, connect the key-

board and mouse, to the computer and not to the down-

stream ports on the display monitor. After the enumera-

tion, the keyboard and mouse can be used by connecting

to the downstream ports, if they are USB-compliant.

• Do not unplug the USB cable during the enumerations.

(1) Connect the computer and the display monitor with the

included USB cable. Figure 8 will appear.

(2) Click “Next” on Figure 8 to get Figure 9.

(3) Click “Finish” on Figure 9 to complete the enumeration

of USB HUB.

NOTE

You can confirm that the USB HUB is successfully enumer-

ated with the following method.

• Open “Device Manager” tab in “System” property

under “Control Panel”. Confirm that “Generic USB

HUB” is listed in “Universal Serial Bus Controller”. If

you can’t confirm it, re-enumerate the USB HUB

again by following (a) or (b).

Figure 9

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Compaq P1220 Wartungshandbuch Seite 162