Olivetti d-Color MF 4003, Руководство по обслуживанию, Страница: 430 / 688

d-Color MF4003/MF3303
L TROUBLESHOOTING > 3. TROUBLE CODE
L-32
3.8 C2###
3.8.1 C2153, C2154, C2155, C2156
Contents
Trouble type • C2153: Transfer belt spacing fault at K pressure switching
• C2154: Transfer belt contact fault at all pressure switching
• C2155: Transfer belt contact fault after K pressure established
• C2156: Transfer belt spacing fault after all pressure established
Rank B
Trouble detection condition • C2153: The 1st transfer pressure switch (SW4) is not turned ON even after the lapse of a given period of time
after the retraction operation started.
• C2154: The 1st transfer pressure switch (SW4) is not turned OFF even after the lapse of a given period of
time after the pressure operation started.
• C2155: The 1st transfer pressure sensor (SW4) is turned OFF after the lapse of given time after the retraction
operation is finished.
• C2156: The 1st transfer pressure sensor (SW4) is turned ON after the lapse of given time after the pressure
operation is finished.
Trouble isolation -
Relevant electrical parts • Color motor (M2)
• 1st transfer pressure clutch (CL1)
• 1st transfer pressure switch (SW4)
• CPU board (CPUB)
• Base board (BASEB)
Procedure
1. Check the connector between M2-BASEB CN17E for proper connection and correct as necessary.
2. Check the connector of M2 for proper drive coupling and correct as necessary.
3. Check the connector between SW4-BASEB CN18E for proper connection and correct as necessary.
4. Check the connector between CL1-relay CN13-BASEB CN18E for proper connection and correct as necessary.
5. Check CPUB for proper installation and correct as necessary.
6. SW4 I/O check, sensor check
• Control signal: BASEB CN18E-3 (ON)
• Location of electrical component: 2-C
7. CL1 load check
• Check code: 24
• Multi code: 1
• Control signal: BASEB CN18E-4 (ON)
• Location of electrical component: 2-C
8. M2 load check
• Check code: 41
• Multi code: 1, 2
• Control signal: BASEB CN17E-11 to 15
• Location of electrical component: 1-C
9. Replace M2.
10. Replace CPUB.
11. Replace BASEB.
3.8.2 C2253, C2254
Contents
Trouble type • C2253: Color motor failure to turn
• C2254: Color motor turning at abnormal timing
Rank B
Trouble detection condition • C2253: The control circuit detects motor failure to turn while the motor is turning.
• C2254: The control circuit detects motor turning while the motor remains stationary.
Trouble isolation -
Relevant electrical parts • Color motor (M2)
• CPU board (CPUB)
• Base board (BASEB)
Procedure
1. Check the connector between M2-BASEB CN17E for proper connection and correct as necessary.
2. Check the connector of M2 for proper drive coupling and correct as necessary.
3. Check CPUB for proper installation and correct as necessary.
4. M2 load check
• Check code: 41
• Multi code: 1, 2
• Control signal: BASEB CN17E-11 to 15
• Location of electrical component: 1-C
5. Replace M2.
6. Replace CPUB.
7. BASEB F20E conduction check
8. Replace BASEB.
Service Manual Y119930-3