8224 N/B Maintenance
8224 N/B Maintenance
138
8.12 Blue Tooth Test Error-1
An error occurs when a Blue Tooth device is installed.
Re-test
OK?
Test
OK?
Blue Tooth Test Error
Check if the Blue Tooth device is
installed properly.
No
Yes
No
Yes
Check the following parts for cold solder or one of the
following parts on the mother-board may be defective,
use an oscilloscope to check the following signal or replace
the parts one at a time and test after each replacement.
Signals:
Replace another known good Blue
Tooth device.
Board-level
Troubleshooting
Correct it.
+3VS
+VCC_BT
BT_IN#
US
USB_BT_P5-
BT_LED
BLT_DT
BLT_EN
Parts:
U13
U15
J522
Q501
L576
L542
R502
R1964
R503
R765
R1965
Correct it.
Replace
Motherboard
MiTac Secret
Confidential Document