d-Color MF4003/MF3303
L TROUBLESHOOTING > 3. TROUBLE CODE
L-49
Relevant electrical parts
• ADU forward rotation clutch (CL6)
• Base board (BASEB)
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.
5.
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
• ADU reverse rotation clutch (CL7)
• Base board (BASEB)
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.
5.
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
• Exit path switch solenoid (SD1)
• Base board (BASEB)
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.
5.
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
• Machine cooling fan (FM1)
• Base board (BASEB)
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.
5.
Y119930-3
Service Manual
Summary of Contents for d-Color MF 4003
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