Ricoh 002052MIU User Guide - Page 98

FAX & PHONE PROBLEMS 4.7 FAX & PHONE PROBLEMS 4.7.1 NO DIAL TONE Description While on-hook button is pressed, there is no dial tone. Check and Cause Check if the telephone line cord is connected to "LINE" correctly. Check if it makes CLICK sound while on hook dial key is pressed. Check the connection of HARNESS between the LIU and the Main Board. Check if the SPEAKER is connected correctly. Solution If the telephone cord is normal but there is no dial tone, then try to replace the LIU Board. If you cannot hear the CLICK sound of the on hook dial key, the OPE Ass'y may be defective. Replace the OPE assembly. Check the Speaker connection, and try to replace it. Lastly, try to replace the Main Board. 4.7.2 DEFECTIVE TONE DIAL Description The Tone Dial is not functioning. Check and Cause Check if the telephone line is connected correctly. When the ten key pad is pressed, check to hear a CLICK sound. Check the connection of HARNESS between the LIU and the Main Board. Solution If you cannot hear the CLICK sound of the on hook dial key, the OPE Ass'y may be defective. Replace the OPE assembly. If you can hear a CLICK sound, after checking the connection of HARNESS between the LIU and the Main Board, try to replace the HARNESS. The problem still persists, then replace the LIU and the Main Board in sequence. Notes: Product supports the Tone Dial type only. B173 4-32 SM