MiTAC 8050D 用户手册

8050

D N/B Maintenance

118

USB Test Error

Check if the USB device is installed

properly. (Including charge board.)

Re-test

OK?

Yes

Correct it

Replace another known good USB
device.

Replace

Motherboard

Replace

the faulty part

Test

OK?

Parts:

Signals:

U715
U705
U701
U712
J701
J706
L701
L702
L2
L5

+5VS

USBP0+

USBP0-

USBP1+

USBP1-

USBP2+

USBP2-

Board-level

Troubleshooting

USBOC0#

+VCC_USB_0

+VCC_USB_1

+VCC_USB_2

Check following parts and signals:

L22
L708
R701
C701
R706
C713
C703
C709

8.7 USB Port Test Error

An error occurs when a USB I/O device is installed.

MiTac Secret

Confidential Document