Technical Description 3 - 6 OKIFAX 5300/5600Service Manual, P/N 592783013.3 Boards and UnitsThe following three boards, Memory board (option), Telephone interface board (option), PC interfaceboard (option) and three units constitute the OKIFAX 5300/5600 units.• Main control board MCNT: (M17; OKIFAX 5000 series)• Modem board MODEM: (MODE; 28.8kbps)(for OKIFAX 5500/5600)• Network control unit board NCU: (UNC)• Memory board (option) MEM: (MEM; 1/2MB for OKIFAX 5000 series)• Telephone interface TEL: (TEL-U, NTIF, HOOK, 10 KEY)board (option)• PC interface board (option) Bi-Centro I/F: (CTR)• 2nd tray interface board (option) 2ND TRAY I/F:(TQSB)• Operation panel assembly unit OPE: (O5W)• Power supply unit POW UNIT: (120/230, SPSU;120V/230V)• Printer unitFigure 3.3.2 shows the related drawing of OKIFAX 5300/5600 series facsimile transceiver.Note: The contact image sensor and electromagnetically driven parts compose the so-called ScanUnit.
