Step 1. Check if connectors
CN101 and CN103 are
connected.
⇒ If not improve, go to Step 2.
Step 2.
Check and replace the related
harness.
⇒ If not improve, go to Step 3.
Step 3. Replace the Fax board.
⇒ If not improve, go to Step 4.
Step 4. Replace the SYS board.
Since neither fax board could
be detected, check the above
two items.
Step 1. Check if connectors
CN101 and CN103 are
connected.
⇒ If not improve, go to Step 2.
Step 2. Check and replace the
related harness.
⇒ If not improve, go to Step 3.
Step 3. Replace the Fax board.
⇒ If not improve, go to Step 4
Step 4. Replace the SYS board.