Samsung SCX4521F Service Manual - Page 119
Defective FAX FORWARD/RECEIVE, 6.4 Defective FAX FORWARD
UPC - 635753616040
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Troubleshooting 6.6.3 Defective FAX FORWARD/RECEIVE • Description FAX FORWARD/RECEIVE is not functioning. Check and Cause 1. Check that you can hear a dial tone by pressing OHD. 2. Check that you can hear a RECEIVE tone when MODEM testing in TECH Mode. Solution 1. If MODEM testing is normal and there is no dial tone, then try replacing the LIU B'd. 2. If testing the MODEM shows a fault replace the Main B'd. 6.6.4 Defective FAX FORWARD • Description RECEIVE is functioning, but FORWARD is not functioning or received data is corrupt. Check and Cause 1. Check if there is a NOISE line by pressing on-hook dial and listening. 2. Check that the destination fax machine can receive forwarded faxes by using a different sending fax machine (preferably from the same wall socket). 3. Check the cable between the set and the wall socket for damage. Solution 1. If you can hear a noisy line when using on-hook dial, replace or repair the telephone line 2. Replace LIU. 3. Replace the line cord. 6-24 Service Manual Samsung Electronics