8050
8050
D N/B Maintenance
D N/B Maintenance
129
MODEM Test Error
No
Test
OK?
No
Replace a known good modem
Re-test
OK?
Board-level
Troubleshooting
1.Check if the driver is installed properly.
2.Check if the notebook connect with the
phone LAN properly.
Correct it.
Replace
Motherboard
Signals:
Yes
+5V
+3VS
+3V
MONO_OUT
ACSDOUT
ACRST#
ACSYNC
ACBITCLK
ACSDIN1
MODEMP
MODEMN
J717
J715
U726
R1132
C937
R498
L69
R1120
R1131
L724
F2
Yes
Correct it.
Parts:
Check following parts and signals:
8.12 Modem Test Error
An error occurs when run the modem
MiTac Secret
Confidential Document