Olivetti d-Color MF4003 Service Manual page 447

d-Color MF4003/MF3303
Relevant electrical parts
Procedure
1. Check the connector between CL6-relay CN11-BASEB CN18E for proper connection and correct as necessary.
2. Check the connector of CL6 for proper drive coupling and correct as necessary.
3. CL6 conduction check
• Control signal: BASEB CN18E-6 (ON)
• Location of electrical component: 2-C
4. Replace CL6.
5. Replace BASEB.
3.13.10 C720F
Contents
Trouble type C720F: ADU reverse rotation clutch failure
Rank C
Trouble detection condition After starting the clutch, an error is detected for the malfunction detection signal.
Trouble isolation -
Relevant electrical parts
Procedure
1. Check the connector between CL7-relay CN39-BASEB CN18E for proper connection and correct as necessary.
2. Check the connector of CL7 for proper drive coupling and correct as necessary.
3. CL7 conduction check
• Control signal: BASEB CN18E-8 (ON)
• Location of electrical component: 3-C
4. Replace CL7.
5. Replace BASEB.
3.13.11 C7243
Contents
Trouble type C7243: Exit path switch solenoid failure
Rank C
Trouble detection condition After starting the solenoid, an error is detected for the malfunction detection signal.
Trouble isolation -
Relevant electrical parts
Procedure
1. Check the connector between SD1-relay CN12-BASEB CN18E for proper connection and correct as necessary.
2. Check the connector of SD1 for proper drive coupling and correct as necessary.
3. SD1 conduction check
• Control signal: BASEB CN18E-10 (ON)
• Location of electrical component: 3-C
4. Replace SD1.
5. Replace BASEB.
3.13.12 C7311
Contents
Trouble type C7311: Machine cooling fan failure
Rank C
Trouble detection condition After starting the fan, an error is detected for the malfunction detection signal.
Trouble isolation -
Relevant electrical parts
Procedure
1. Check the connector between FM1-relay CN23-BASEB CN19E for proper connection and correct as necessary.
2. Check the connector of FM1 for proper drive coupling and correct as necessary.
3. FM1 conduction check
• Control signal: BASEB CN19E-4 (REM), BASEB CN19E-6 (LOCK)
• Location of electrical component: 9-C
4. Replace FM1.
5. Replace BASEB.
Y119930-3
• ADU forward rotation clutch (CL6)
• Base board (BASEB)
• ADU reverse rotation clutch (CL7)
• Base board (BASEB)
• Exit path switch solenoid (SD1)
• Base board (BASEB)
• Machine cooling fan (FM1)
• Base board (BASEB)
L TROUBLESHOOTING > 3. TROUBLE CODE
L-49
Service Manual