Re-test
OK? No
Replace a known good modem
Test
OK? No
8.13 Modem Test Error(1)
An error occurs when run the modem
Modem Test Error
1.Check if the driver is installed properly. 2.Check if the notebook connect with the
phone LAN properly.

8399 N/B Maintenance

 

Board-level

 

 

 

 

Troubl shooting

 

 

 

 

Secret

 

 

 

 

 

 

Check following parts and signals:

Yes

Correct it.

Document

 

 

 

Parts:

 

Signals:

 

 

 

 

MiTac

 

J15

R341

+5V

 

 

 

J7

R336

+3VS

 

 

 

U10

R334

+3V

 

 

 

U20

C187

 

 

Replace

MONO_OUT

 

 

J5

C2

 

 

AC97_SDOUT

 

Motherboard

R342

C3

 

AC97_RST#

Confidential

L19

C666

AC97_SYNC

L105

C667

MDC_SDIN

R5

JS1

 

 

 

R867

JS506

AC97_BITCLK

Yes

Correct it.

 

R305

 

TIP_1

 

 

R300

 

TIP

 

 

 

R304

 

RING_1

RING

125