Lexmark Optra S Service Manual - Page 59

4059-XXX Dead Machine Service Check Note: Remove any paper handling options before servicing the printer for a dead machine condition. Observe all necessary ESD precautions when removing and handling the controller board, engine board or any of the installed option cards or assemblies. Service Tip: When removing the LVPS from the printer observe the following: 1. The LVPS uses a self docking connector that mates with another connector mounted on the left side frame assembly. Some force may be required to pull the LVPS loose from the connector. 2. Gently remove the LVPS supply using caution not to damage the printed circuit board. Pull the LVPS out far enough to reach the fuser lamp cable. 3. The fuser lamp cable uses a locking type of connector system. Unlock the fuser lamp cable connector, disconnect the cable and remove the LVPS from the printer. FRU 1 Line Voltage 2 AC Line Cord 3 +5 V dc at any Option Connector 4 +5 V dc at the controller board test point Action Check the AC line voltage. If the line voltage is incorrect, inform the customer. Check the line cord for any signs of damage. If correct, check the continuity of the line cord and replace if necessary. Check for +5 V dc on any of the option connectors. The easiest to access is the envelope feeder connector located behind the lower front door. If +5 V dc is present at any of the connectors, go to step 9. If +5 V dc is not present, go to step 4. Check for +5 V dc at the +5 V dc test pad located on the controller board. If correct, go to step 9. Diagnostic Information 2-32