+---+
|001|
+---+
- Power-off the computer.
- Ensure that the modem is installed correctly.
- If the modem never worked in customer mode, ensure that all
drivers are loaded correctly onto the computer.
- Ensure that the communication program is supported on the computer.
- Ensure that the public switch telephone network (PSTN) cable and the
data access arrangement (DAA) cable, if installed,
are connected correctly.
If you need to correct one of the above conditions, do so now,
then continue.
NOTE: PCMCIA cards can be inserted and removed while
the system is powered on
- Power-on the system.
- Insert the IBM Data/FAX Modem diskette into the default
diskette drive.
- If you are servicing a High Speed Internal Data/Fax Modem (Models
FC3632 and FC3650), at the DOS prompt (for example, A:\), type
IBMDIAG, then press Enter.
- If you are servicing a PCMCIA Data/FAX Modem (Models FC3634 and
FC3635), at the DOS prompt (for example, A:\), type ESTDIAG,
then press Enter.
- Follow the instructions on the screen. (If you need help, press
F1.)
DID THE DIAGNOSTIC TESTS DETECT AN ERROR?
+---+
Yes No-+002|
| +---+
| The diagnostic tests have completed successfully.
+-+-+ If you suspect a problen, go to step 004
|003|
+---+
Go to the Symptom-to-FRU Index for the computer you are servicing.
------------------------------------------------------------------------
+---+
|004|
+---+
- Check the PSTN cable and the DAA cable, if installed, for continuity.
IS THE CABLE(S) GOOD?
+---+
Yes No-+005|
| +---+
+-+-+ Replace the defective cable(s).
|006|
+---+
- Have the customer transmit a call.
WAS THE CALL TRANSMITTED SUCCESSFULLY?
+---+
Yes No-+007|
| +---+
+-+-+ Go to step 011
|008|
+---+
- Have the customer receive an incoming call on the modem.
WAS THE INCOMING CALL RECEIVED?
+---+
Yes No-+009|
| +---+
+-+-+ Go to step 014
|010|
+---+
The diagnostic tests have completed successfully. If you still suspect
a problem that is not software related, replace the External DAA, then
replace the modem.
------------------------------------------------------------------------
+---+
|011|
+---+
- Have the customer transmit a call at a lower speed.
WAS THE CALL TRANSMITTED SUCCESSFULLY?
+---+
Yes No-+012|
| +---+
| If installed, replace the external DAA.
| If you do not have an external DAA installed,
| or replacing the external DAA does not correct
+-+-+ the problem, replace the modem.
|013|
+---+
Have the telephone line checked.
------------------------------------------------------------------------
+---+
|014|
+---+
- Have the customer receive an incoming call on the modem
at a lower speed.
WAS THE INCOMING CALL RECEIVED?
+---+
Yes No-+015|
| +---+
| If installed, replace the external DAA.
| If you do not have an external DAA installed,
| or replacing the external DAA does not correct
+-+-+ the problem, replace the modem.
|016|
+---+
Have the telephone line checked.
Please see the LEGAL - Trademark notice.
Feel free - send a 
for any BUG on this page found - Thank you.