Pitney Bowes DM300c Service Manual page 95

4.2 Troubleshooting Tables
Table 4-10 Modem/Connection Faults (cont'd)
Problem Possible Cause
Machine fails Changing the modem speed:
to connect tp
Postage By
Phone Data
Center: No dial
tone.
Modem setup incorrect.
Faulty modem.
DM300c/DM400c/DM475 Service Manual (SV61801 Rev. D)
4 • Troubleshooting/Diagnostics
Solution
Currently all Meters are built with a default Modem Initial-
ization String setting, as follows:
ATE0&K0M1X4W2S9=50S7=90^M
Using the following Key sequence will take you to the
screen which allows you to edit this string:
Menu > Data Center Options > Phone Settings > Modem
String
Select Modem String
Select Continue
Select Edit Options
Then, using the Move Cursor Left and Move Cursor Right
soft Keys, edit the string so it looks like:
ATE0&K0M1X4W2S9=50S7=90+MS=V34^M
Add the '+MS=V34' to the string; it MUST be placed before
the '^M'
NOTE: Special characters like + = ^ can be found on the
QWERTY Keyboard. For + use G, for = use A, for ^ use B.
Once the string looks correct then:
Select OK
Select Accept
Select Done
Check that modem setup is correct. Go to OPTIONS and
scroll to CONNECT-DATA CENTER. Is tone/pulse setting
correct? Is a dial prefix required to get an outside line? Is
PbP number correct? Other modem parameters OK?
Check that modem is properly seated on main logic board
and that connection between J2 on modem board and J109
on main logic board is sound.
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