Samsung SCX 6322DN Service Manual - Page 81
FAX only SCX-6122FN
UPC - 635753620658
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Troubleshooting 6.2.2 FAX (only SCX-6122FN) 6.2.2.1 FAX/TELEPHONE Precautions PROBLEM ITEMS TO BE CHECKED. TEL LINE CANNOT BE ENGAGED (NO DIAL TONE) • When you press " OHD" key: a) Check line cord connection. b) Check MAIN LIU harness, and CN1 (LIU PBA). Cannot MF dial • Check MAIN-LIU harness. MF dial is possible but • Check DP control signal of MAIN PBA and Liu not DP dial. PBA. Defective fax transmission • Check MAIN LIU harness. • Is the external phone hooked off? • Check 'hook off' : Refer to 'TEL LINE CANNOT BE ENGAGED' above. • Check transmission path and reception path of the LIU PBA. Defective automatic fax • Is the ring checked? reception • Refer to 'Defective Transmission.' HOW TO SOLVE a) insert it correctly into the connection jack called "line". b) Replace defective parts. • Replace defective parts. • Replace LIU PBA. • Replace defective parts. • Replace LIU PBA if low. • Refer to 'TEL LINE CANNOT BE ENGAGED' above. • Replace main PBA, if abnormal. • Replace LIU PBA. Replace main PBA. • Replace LIU PBA if it cannot be checked. • Refer to 'Defective Transmission'. 6-4 Service Manual Samsung Electronics