Olivetti MB-502 Service Manual
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Contents
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8. Trouble code Field Service Ver. 1.0 Jun. 2008MB-502Troubleshooting8. Trouble code8.1 Trouble code• The main unit’s CPU performs a self-diagnostics function that, on detecting a malfunc-tion, gives the corresponding malfunction code on the touch panel.• Open and close the front door, or turn OFF the main power switch. Then, wait for 10 sec.or more and turn ON the main power switch to reset the malfunction display.8.2 Solution8.2.1 C0211: Manual feed up/down abnormalityCode Item DescriptionC0211 Manual feed up/down abnormal-ity• The lift-up position sensor (PS14) is not unblockedeven when the transport motor has turned for a givennumber of pulses after the sequence to move the paperlifting plate from the standby position to the feed posi-tion was started.• The lift-up position sensor (PS14) is not blocked evenwhen the transport motor has turned for a given num-ber of pulses after the sequence to move the paper lift-ing plate from the feed position to the standby positionwas started.Relevant electrical partsTransport motor (M1)Manual pick-up solenoid (SD2)Lift-up position sensor (PS14)Printer control board (PRCB)Step ActionWIRING DIAGRAMControl signalLocation(Electricalcomponents)1 Check the M1 connector for proper con-nection and correct as necessary. — —2 Check the connector of M1 for properdrive coupling and correct as necessary. — —3 PS14 I/O check, sensor check PRCB CN10-15 (ON) MB-502 D-54 SD2 operation check PRCB CN11-4 (ON) MB-502 D-35 M1 operation check PRCB CN-27-11 to 15 d-Color MF201C to D-236 SD2 replacement — —7 M1 replacement — —8 PRCB replacement — —24 Service Manual Y109730-6 |
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