C760C (bizhub 950i/850i)
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Contents
Trouble type | C760C: Power line A12 error |
Rank | C |
Trouble detection condition | The fuse detection unit detected an error for a predetermined time. |
Trouble isolation | – |
Relevant electrical parts | – Ozone ventilation fan (FM6) – Paper cooling fan/in (FM12) – Fusing power supply cooling fan (FM10) – DC power supply cooling fan (FM9) – Paper cooling fan/out (FM13) – Tucking fan/Md (FM101) – Tucking fan/Rr (FM102) – Tucking fan/Fr (FM103) – Total counter (TCT) (Not included) – Dehumidifier drive board (DEDB)Key counter (KCT) – Toner suction fan (FM7) – Toner cartridge cooling fan/1 (FM8) – Base board (BASEB) |
Procedure
- BASEB F6E conduction check.
- Check the connector between FM6-relay CN322-BASEB CN27E for proper connection and correct as necessary.
- Check the connector between FM12-relay CN325-BASEB CN27E for proper connection and correct as necessary.
- Check the connector between FM10-relay CN803-BASEB CN23E for proper connection and correct as necessary.
- Check the connector between FM9-relay CN333-BASEB CN23E for proper connection and correct as necessary.
- Check the connector between FM13-relay CN323-BASEB CN27E for proper connection and correct as necessary.
- Check the connector between FM101-relay CN337-relay CN334-BASEB CN25E for proper connection and correct as necessary.
- Check the connector between FM102-relay CN335-relay CN334-BASEB CN25E for proper connection and correct as necessary.
- Check the connector between FM103-relay CN336-relay CN334-BASEB CN25E for proper connection and correct as necessary.
- Check the connector between TCT-relay CN702-BASEB CN27E for proper connection and correct as necessary. (Not included)
- Check the connector between DEDB CN2-relay CN601-BASEB CN23E for proper connection and correct as necessary.
- Check the connector between KCT-relay CN615-BASEB CN23E for proper connection and correct as necessary.
- Check the connector between FM7-relay CN326-BASEB CN24E for proper connection and correct as necessary.
- Check the connector between FM8-relay CN522-BASEB CN24E for proper connection and correct as necessary.
- FM6 load check
- Check code: 42
- Multi code: 11, 12
- Control signal: BASEB CN27E-7 to 9
- Location of electrical component: 13-C
- Ozone ventilation fan (FM6)
- FM12 load check
- Check code: 42
- Multi code: 18, 19
- Control signal: BASEB CN27E-4 to 6
- Location of electrical component: 13-C
- Paper cooling fan/in (FM12)
- FM10 load check
- Check code: 42
- Multi code: 27, 33
- Control signal: BASEB CN23E-10 to 12
- Location of electrical component: 10-K
- Fusing power supply cooling fan (FM10)
- FM9 load check
- Check code: 42
- Multi code: 9, 10
- Control signal: BASEB CN23E-7 to 9
- Location of electrical component: 9-K
- DC power supply cooling fan (FM9)
- FM13 load check
- Check code: 42
- Multi code: 13
- Control signal: BASEB CN27E-10 to 12
- Location of electrical component: 14-C
- Paper cooling fan/out (FM13)
- FM101 load check
- Check code: 42
- Multi code: 22
- Control signal: BASEB CN25E-1 to 3
- Location of electrical component: 7-K
- Tucking fan/Md (FM101), Tucking fan/Rr (FM102), Tucking fan/Fr (FM103)
- FM102 load check
- Check code: 42
- Multi code: 23
- Control signal: BASEB CN25E-7, 8
- Location of electrical component: 7-K
- Tucking fan/Md (FM101), Tucking fan/Rr (FM102), Tucking fan/Fr (FM103)
- FM103 load check
- Check code: 42
- Multi code: 23
- Control signal: BASEB CN25E-4, 5
- Location of electrical component: 7-K
- Tucking fan/Md (FM101), Tucking fan/Rr (FM102), Tucking fan/Fr (FM103)
- Dehumidifier drive board (DEDB)
- Replace the key counter.
- FM7 load check
- Check code: 42
- Multi code: 1
- Control signal: BASEB CN24E-4 to 6
- Location of electrical component: 1-K
- Toner suction fan (FM7)
- FM8 load check
- Check code: 42
- Multi code: 24
- Control signal: BASEB CN24E-1 to 3
- Location of electrical component: 1-K
- Toner cartridge cooling fan/1 (FM8)
- Base board (BASEB)