ARMADA 3500 SM

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Problem Probable Cause Recommended Action(s)
Verify service from the local phone
No dial tone Phone service is not
company:
connected to the telephone
wall jack.
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.
Verify the modem and computer are
The modem is not responding
connected:
to commands from the
computer keyboard.
1. Click Start �! Programs �!
Accessories �! HyperTerminal.
2. Go to Terminal Mode, then 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 a dial tone.
4. Type ATH0 (zero) to hang up.
Set the Speaker Control to 1:
Speaker Control AT Command
(ATM) is set to 0.
1. Click Start �! Programs �!
Accessories �! HyperTerminal.
2. Go to Command Mode, type ATM1 and
press Enter.
3. Type ATH1 and listen for a dial tone.
4. Type ATH0 (zero) to hang up.
The modem is plugged into a Plug the modem into an analog line. If you
digital PBX line rather than an are in an office, the analog line is often the
analog line. one connected to a fax machine or modem.
To get an analog line in a hotel, request a
room with a data line.
Characters are garbled and There is noise in the
Check your telephone and modem
transfer rates are slow. telephone line.
cable connections. If they are loose,
they can cause noise on the line.
Check with your local telephone
company for a phone line filter.
Continued
Troubleshooting 2-27
Table 2-22 Solving PC Card Modem Problems Continued
Problem Probable Cause Recommended Action(s)
Phone line noise causes a Hang-Up Delay S Register Change S10 default to 150.
disconnection. (S10) set too low.
1. Click Start �! Programs �!
Accessories �! HyperTerminal.
2. Go to Command Mode.
3. Type ATS10=150 and press Enter.
This command causes the modem to take
longer to disconnect even if there is noise
on the line.
Ten-digit dialing does not Ten-digit dialing doesn t work Since Windows 95 does not limit the number
work correctly under Windows correctly under Windows 95, of digits you can enter in the Phone Number
95. making it difficult to dial field, set the Area Code field to match your
numbers in a different area local area code. Then type the ten-digit
code that are not long telephone number in the Phone Number
distance calls. field.
Modem cable The modem cable does not To use another telephony device on the
disables/interferes with other provide the additional 4-wire same line in these countries, unplug the
telephony devices (Germany, connection required in modem cable from the wall jack first.
Austria, and Switzerland only). Germany, Austria, and
Switzerland to form the serial
pass-through necessary so
that other devices can work on
the same phone line.
Modem does not dial correctly The Wait for dial tone before
1. Click Start �! Settings �! Control Panel.
under Windows 95 dialing check box is checked.
2. Double-click the Modems icon.
(Switzerland and Germany This causes Windows 95 to
3. Click the Properties button.
only). issue an ATDT; command. A
typical dial string would look
4. Select the Connection tab.
like this:
5. Click the Wait for dial tone before
ATDT;
dialing check box to clear it.
ATDTnnn-nnnn
6. Click OK �! Close.
In Germany and Switzerland,
the ; dial modifier is not
permitted to be used in this
fashion by regulatory agencies
since ATDT; takes the modem
off-hook without dialing.
Therefore, the modem returns
an error message when
attempting to dial. The error
message reads:
The computer is not receiving
a response from the modem.
Check that the modem is
plugged in, and if necessary,
turn the modem off, then turn
it back on.
2-28 Troubleshooting
2.6.1.9 Solving PC Card Problems
Table 2-23
Solving PC Card Problems
Problem Probable Cause Recommended Action(s)
Computer does not beep System beeps are turned Press Fn+F5, then press the right arrow
down. key to increase the system beeps volume.
when PC Card is inserted but
PC Card works correctly.
PC Card sound effects have In Windows 95, double-click PC Card icon �!
been disabled. Global Settings tab. Deselect Disable PC Card
Sound Effects.
Computer does not beep when [ Pobierz całość w formacie PDF ]

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