Compaq Armada m700 Compaq Armada M700 Series of Personal Computers Maintenance - Page 52

Table 2-15, Problem, Possible Cause, Solution, Hang-up Delay S Register

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Table 2-15 Continued Problem Possible Cause Solution Phone line noise causing Hang-up Delay S Register a disconnection. (S10) set too low. Change S10 default to 150. To set S10=150: 1. Select Start ! Programs ! Accessories ! HyperTerminal, then go to Command Mode. 2. Type ATS10=150 and press Enter. This command causes the modem to take longer to disconnect even if there is noise on the line. No dial tone Phone service is not connected to the telephone wall jack. Verify that service from the local phone company by following these steps: 1. Unplug the telephone cable from the telephone wall jack. 2. Connect a telephone to the jack, pick up the handset, and listen for a dial tone. If there is a dial tone, reconnect the modem to the telephone wall jack with the telephone cable and make sure all connections are secure. 3. If there is still no dial tone, contact your local phone company or building manager. The modem is not responding Verify the modem and computer are to commands from the connected: computer keyboard. 1. Select Start ! Programs ! Accessories ! HyperTerminal, then go to Terminal Mode. 2. Type AT and press the Enter key. If the modem displays OK, the modem and computer are working together. If the modem displays ERROR, or does not respond, restart the computer and repeat step 1. 3. Type ATDT and listen for dial tone. 4. Type ATH0 to hang up. Continued Troubleshooting 2-21

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Troubleshooting
2-21
Table 2-15
Continued
Problem
Possible Cause
Solution
Phone line noise causing
a disconnection.
Hang-up Delay S Register
(S10) set too low.
Change S10 default to 150.
To set S10=150:
1.
Select Start
!
Programs
!
Accessories
!
HyperTerminal,
then go to Command Mode.
2.
Type ATS10=150 and press
Enter.
This command causes the modem
to take longer to disconnect even if
there is noise on the line.
No dial tone
Phone service is not
connected to the telephone
wall jack.
Verify that service from the local
phone company by following these
steps:
1.
Unplug the telephone cable from
the telephone wall jack.
2.
Connect a telephone to the jack,
pick up the handset, and listen for
a dial tone. If there is a dial tone,
reconnect the modem to the
telephone wall jack with the
telephone cable and make sure all
connections are secure.
3.
If there is still no dial tone, contact
your local phone company or
building manager.
The modem is not responding
to commands from the
computer keyboard.
Verify the modem and computer are
connected:
1.
Select Start
!
Programs
!
Accessories
!
HyperTerminal,
then go to Terminal Mode.
2.
Type AT and press the Enter key.
If the modem displays OK, the
modem and computer are working
together. If the modem displays
ERROR, or does not respond,
restart the computer and repeat
step 1.
3.
Type ATDT and listen for dial
tone.
4.
Type ATH0 to hang up.
Continued