Lenovo ThinkPad 390E Hardware Maintenance Manual (March 1999): ThinkPad 390E o - Page 42
Modem Board Checkout
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Modem Board Checkout Do the following to isolate the problem to the system internal modem: 1. Boot from and start PC Doctor. (See "PC Doctor System Diagnostics" on page 51 for details.) 2. Select Diagnostics. 3. Select Other Devices. 4. Run Modem Loopback Test and Modem Dialtone/DTMF Test. 5. Follow the instructions in the message window. 6. If the test detects a modem problem, replace the modem card. 32 ThinkPad 390E
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Modem Board Checkout
Do the following to isolate the problem to the system
internal modem:
1.
Boot from and start PC Doctor. (See “PC Doctor
System Diagnostics” on page
51 for details.)
2.
Select
Diagnostics
.
3.
Select
Other Devices
.
4.
Run
Modem Loopback Test
and
Modem
Dialtone/DTMF Test
.
5.
Follow the instructions in the message window.
6.
If the test detects a modem problem, replace the
modem card.
32
ThinkPad 390E