C7607 (C4751i)

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ByEric Ditges
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Contents

Trouble typeC7607: Power line A7 error
RankC
Trouble detection conditionThe fuse detection unit detected an error for a predetermined time.
Trouble isolation–
Relevant electrical parts1st transfer pressure clutch (CL1)Bypass tray paper feed clutch (CL2)Tray 1 paper feed clutch (CL3)Registration clutch (CL4)ADU transport clutch (CL5)ADU forward rotation clutch (CL6)ADU reverse rotation clutch (CL7)Exit path switch solenoid (SD1)Base board (BASEB)

Procedure

  1. BASEB F4E conduction check
  2. Check the connector between CL1-relay CN13-BASEB CN18E for proper connection and correct as necessary.
  3. Check the connector between CL2-relay CN46-BASEB CN23E for proper connection and correct as necessary.
  4. Check the connector between CL3-relay CN44-BASEB CN22E for proper connection and correct as necessary.
  5. Check the connector between CL4-relay CN45-BASEB CN22E for proper connection and correct as necessary.
  6. Check the connector between CL5-relay CN47-BASEB CN23E for proper connection and correct as necessary.
  7. Check the connector between CL6-relay CN11-BASEB CN18E for proper connection and correct as necessary.
  8. Check the connector between CL7-relay CN39-BASEB CN18E for proper connection and correct as necessary.
  9. Check the connector between SD1-relay CN12-BASEB CN18E for proper connection and correct as necessary.
  10. CL1 conduction check
    • Control signal: BASEB CN18E-3 (ON)
    • Location of electrical component: 2-C
  11. CL2 conduction check
    • Control signal: BASEB CN23E-10 (ON)
    • Location of electrical component: 9-K
  12. CL3 conduction check
    • Control signal: BASEB CN22E<A>-1 (ON)
    • Location of electrical component: 12-C
  13. CL4 conduction check
    • Control signal: BASEB CN22E<A>-3 (ON)
    • Location of electrical component: 12-C
  14. CL5 conduction check
    • Control signal: BASEB CN23E-12 (ON)
    • Location of electrical component: 9-K
  15. CL6 conduction check
    • Control signal: BASEB CN18E-5 (ON)
    • Location of electrical component: 2-C
  16. CL7 conduction check
    • Control signal: BASEB CN18E-7 (ON)
    • Location of electrical component: 3-C
  17. SD1 conduction check
    • Control signal: BASEB CN17E-11 (ON)
    • Location of electrical component: 1-C
  18. Replace the main drive unit. (CL1)
  19. Replace CL2.
  20. Replace CL3.
  21. Replace CL4.
  22. Replace CL5.
  23. Replace CL6.
  24. Replace CL7.
  25. Replace SD1.
  26. Replace BASEB.

(Link to the Field Service Manual)