Lexmark Optra C Service Manual - Page 54

5045-001 Error (126/131) Transfer Drum Motor Failure FRU Action 1 Poor connection Check the connection on the mechanical controller PCB connector J2015. Reconnect it. 2 Door switch Turn the machine off and unplug the power cord. Disconnect connector J7 from the power supply unit. When you turn the door switch (SW2) ON, is there continuity between connectors J7-1 (+24VB) and J7-2 (+24VA)? Replace the door switch. 3 Drum motor Mechanical controller PCB 4 Transfer drum top sensor DC controller PCB Watch the drum motor during POST. Does it rotate? Replace and check as follows: 1. Drum motor. 2. Mechanical controller PCB. Check the connection on the transfer drum top sensor connector J43. Replace and check as follows: 1. Transfer drum top sensor. 2. DC controller PCB, see "DC Controller Board Information" on page 2-2. Error (130) Service Motor Error FRU 1 Mechanical controller PCB Action Replace the mechanical controller PCB. 2-22