Muratec F-116 - Manual (Page 122)

Alignment and Troubleshooting
4-62
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.
If the telephone cord is normal but
there is no dial tone, then try to
replace the LIU B'd.
If you cannot hear the OHD
CLICK sound, the OPE Ass'y may
be defective. Try to replace the
OPE Ass'y.
2. Check if it makes CLICK
sound while OHD key is pressed.
3. Check the connection of
HARNESS between the
LIU and the Main B'd.
Check the Speaker connection,
and try to replace it.
Lastly, try to replace the Main B'd.
4. Check if the SPEAKER
is connected correctly.