User Check - Page 246

Confidential

9 -5 8

F-3 

FAX can't be received. 

User Check 

(1) Verify that the telephone cord is securely inserted. 

Possible cause 

Step 

Check 

Result

Remedy 

Receive mode 
setting 

1 

Receive mode is set to 
automatic receive mode.

No 

Set the receive mode to 
automatic receive mode. 

NCU PCB 

2 

Replacement of NCU 
PCB solves the problem.

Yes

Replace the NCU PCB with a 
normal part. 

Main PCB 

3 

Replacement of main 
PCB solves the problem.

Yes

Replace the main PCB with a 
normal part. 

F-4 

No bell ring. 

Possible cause 

Step 

Check 

Result

Remedy 

Ring delay 

1 

Ring delay is set to "0". 

Yes

Set the ring delay to other than 
"0". 

Ring volume 

2 

Ring volume is set to 
"OFF". 

Yes

Set the ring volume to other 
than "OFF". 

Harness between 
main PCB and 
scanner unit 

3 

Harness is damaged. 

Yes

Replace the harness with a 
normal part. 

Connection 
between main 
PCB and NCU 
PCB 

4 

Main PCB and NCU 
PCB are properly 
connected. 

No 

Fix the connection properly. 

Harness between 
main PCB and 
NCU PCB 

5 

Harness is damaged. 

Yes

Replace the harness with a 
normal part. 

Speaker 

6 

Replacement of speaker 
solves the problem. 

Yes

Replace the speaker with a 
normal part. 

NCU PCB 

7 

Replacement of NCU 
PCB solves the problem.

Yes

Replace the NCU PCB with a 
normal part. 

Main PCB 

8 

Replacement of main 
PCB solves the problem.

Yes

Replace the main PCB with a 
normal part.