Fax & Phone Problems - Dell 1135N Service Manual

4.2.6 Fax & Phone Problems
1) No Dial Tone
Description : While on-hook button is pressed, there is no dial tone.
1. Check if the telephone
line cord is connected to
TEL LINE correctly.
2. Check if the SPEAKER
is connected correctly.
3. Check if it makes CLICK
sound while OHD key is pressed.
Service Manual
Alignment and Troubleshooting
If the telephone cord is abnormal,
then try to correct the connection
of tel line code.
Check the Speaker connection,
and try to replace it.
If you can't hear the OHD click
sound, the OPE and Main board
may be defective.
Try to replace the OPE Ass'y
and Main board in sequence.
4-65