C7607 (bizhub C650i/C550i/C450i)
Please search Knowledge Base articles and Bulletins as they may contain relevant information and updated Part information such as Part numbers.
Contents
| Trouble type | C7607: Power line A7 error | 
| Rank | C | 
| Trouble detection condition | The fuse detection unit detected an error for a predetermined time. | 
| Trouble isolation | – | 
| Relevant electrical parts | -Registration clutch (CL4) (bizhub C550i/C450i) -Bypass tray paper feed clutch (CL7) -Base board (BASEB)  | 
Procedure
- BASEB F7E conduction check
 - Check the connector between CL4-relay CN73-relay CN170-BASEB CN15E for proper connection and correct as necessary.
 - Check the connector between CL7-relay CN20-relay CN13-BASEB CN26E for proper connection and correct as necessary.
 - CL4 conduction check.
- Control signal: BASEB CN15E-2 (ON)
 - Location of electrical component: 3-C
 
 - CL7 conduction check.
- Control signal: BASEB CN26EA-12 (ON)
 - Location of electrical component: 10-K
 
 - Replace CL4. (Part# A02EM20000)
 - Replace CL7. (Part# A02E595100)
 - Replace BASEB. (Part# AA7NH02102)
 
L.3.14.44 (Link to the Field Service Manual)
