Service manual

Alignment and Troubleshooting
4-41
Service Manual
4.3.2.2 FAX
4.3.2.2(a) FAX/TELEPHONE Precautions
PROBLEM ITEMS TO BE CHECKED HOW TO SOLVE
TEL LINE
CANNOT BE
ENGAGED
(NO DIAL TONE)
• When you press “ OHD” key:
a) Check line cord connection.
a) insert it correctly into the connection jack
called “line”.
b) Replace defective parts.
Cannot MF dial • Check MAIN-LIU harness. • Replace defective parts.
MF dial is
possible but
not DP dial.
• Check the main PBA. • Replace main PBA.
Defective fax
transmission
• Check MAIN LIU harness.
• Check ‘hook off’ : Refer to ‘TEL
LINE CANNOT BE ENGAGED’
above.
• Replace defective parts.
• Refer to ‘TEL LINE CANNOT BE ENGAGED’
above.
• Replace main PBA, if abnormal.
Defective
automatic fax
reception
• Is the ring checked?
• Refer to ‘Defective Transmission.’
• Refer to ‘Defective Transmission’.