01/024-38825/8830 Printer REP 3.1Repairs and AdjustmentsREP 3.1 Main PWBParts List on PL 1.1AWARNINGSwitch off the Controller and the Printer Main Power Switches. Disconnect the PrinterPower Cord.CAUTIONElectrostatic Discharge Damage (ESD) may occur. Use ESD procedures and Antistatic WristStrap to avoid damage to PWBs or components.Removal1. Check the Printer Tag Matrix to see if Tag 28 is installed. This information will be neededlater in this procedure.2. (Figure 1): Prepare to remove the Controller.Figure 1 Removing the Controller3. Attach a Static Wrist Strap between your wrist and the unpainted metal chassis of theController.1Remove 2 screwsfrom the PrinterRight Lower Cover,and tilt the coverback slightly.3Lift out theControllerand set it onthe floor.2Disconnect con-nectors A3P307B and A1P3.A1P3A3 p307B