Samsung SCX4521F Service Manual - Page 120

Troubleshooting 6.6.5 Defective FAX RECEIVE (1) • Description FORWARD is functioning, but RECEIVE is not functioning or the received data is corrupt. Check and Cause 1. Check if there is a NOISE line by pressing on-hook dial and listening 2. Use a different fax machine to receive from the same sender (if possible on the same wall socket). Solution 1. If you can hear a noisy line when using on-hook dial, replace or repair the telephone line. 2. Replace the LIU. 6.6.6 Defective FAX RECEIVE (2) • Description Received data are lengthened or cut in the printing. Check and Cause 1. Check if there is a NOISE line by pressing on-hook dial and listening 2. Ask sender to send to another fax machine (if possible connected to the same wall socket) Solution 1. If you can hear a noisy line when using on-hook dial, replace or repair the telephone line 2. Replace LIU or main PBA in sequence. 6.6.7 Defective FAX RECEIVE (3) • Description The phone is ringing continuously, but it set does not answer the call. Check and Cause Check that the RECEIVE Mode is set to FAX MODE. Solution If the fault persists even when the RECEIVE Mode is changed to FAX MODE then replace the LIU and the Main B'd in sequence. Samsung Electronics Service Manual 6-25