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Samsung MJ4500C

Error Codes List page 1

  • Code: 01
  • Description: TEL LINE CANNOT BE ENGAGED (NO DIAL TONE)
  • Causes: • When you pick up the handset: 1 Check line cord connection and P3(LIU) connection. 2 Check hook switch of H/B Cradle and D2(LIU) connection. 3 Check the circuit around R2, Q1 and Q2 of LIU PBA. 4 Can’t you hear dial tone though the line is engaged? • When you press OHD key: 1 Check line cord connection. 2 Check U7(main PBA), main LIU harness, and P1(LIU PBA). 3 Check relaying operation of LIU PBA : Is the control signal of U18-49(main) high?
  • Remedy: • 1 Insert it correctly into the connection jack called “line”. 2 Replace defective parts. 3 Replace LIU PBA. 4 Replace the handset. • 1 Insert it correctly into the connection jack called line. 2 Replace defective parts. 3 Replace main PBA IF the control signal of U18-49(main) is low. Replace LIU PBA if high but phone line cannot be connected
  • Code: 02
  • Description: Cannot MF dial.
  • Causes: • Check U7(main PBA), main-LIU harness, and P1(LIU PBA) • Check signals of U16-122, 123.
  • Remedy: • Replace defective parts. • Replace main PBA if the signals of U16- 122(LIU_TXD) are abnormal. Replace LIU PBA if the signals of U16-123(LIU_RXD).
  • Code: 03
  • Description: MF dial is possible but not DP dial.
  • Causes: • Check DP control signal of U3-27 of LIU PBA and the circuit around R2, Q1 and Q2. • Check connection of R43 of LIU PBA.
  • Remedy: • Replace LIU PBA. • Replace LIU PBA.
  • Code: 04
  • Description: Defective fax transmission
  • Causes: • Check U7(main PBA), main LIU harness, and P1(LIU PBA). • a Is the external phone hooked off? b Is the output of U2-4(LIU PBA) low? • Check ‘hook off’. : Refer to ‘TEL LINE CANNOT BE ENGAGED’. • Check the control signals of U15-122, 123. • Check transmission path.: Check output of U15-44(main PBA) and input of U3-3(LIU PBA). • Check reception path.: Check output of U3-40(LIU PBA) and input of U15-45(main PBA).
  • Remedy: • Replace defective parts. • a Hook on the external phone correctly. b Replace LIU PBA if low. • Refer to TEL LINE CANNOT BE ENGAGED. • Replace main PBA if the signals of U15-122 (LIU_TXD) are abnormal. Replace LIU PBA if the signals of U15-123 (LIU_RXD) are abnormal. • Replace main PBA, if abnormal. • Replace LIU PBA if the output of U3-40 (LIU PBA) is not confirmed. Check the circuit around U6 (main PBA) if the input of U21-45 (main PBA) is not confirmed though the output of U3-40 (LIU PBA) is confirmed.
  • Code: 05
  • Description: Defective automatic fax reception
  • Causes: • Is the ring checked? Check ring pattern at U18-84(main PBA). • Refer to Defective Transmission.
  • Remedy: • Replace LIU PBA if it cannot be checked. • Refer to Defective Transmission.
  • Code: 06
  • Description: ASF feeds paper but paper is not supplied to the engine.
  • Causes: • Check if actuator feed operates perfectly. • Check if paper sensor is normal.
  • Remedy: • Replace actuator-feed, spring, or other defective parts. • Replace the paper sensor.
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