Acer AC4B SM50 KB.I140A.015 Benutzerhandbuch

Chapter 4

139

Modem Function Failure

If the internal Modem fails, perform the following actions one at a time to correct the problem. Do not replace a 
non-defective FRUs:

Wireless Function Failure

If the WLAN fails, perform the following actions one at a time to correct the problem. Do not replace a non-
defective FRUs:

START

RJ-11 well

connected?

Modem wire

well connected?

Modem card

well connected?

Modem card OK?

Replace

Mainboard

Connect it well

Seat it well

Replace

Modem card

Connect it well

No

No

No

No