Lexmark 4059-XXX - Manual (Page 80)

2-53 4059 Service Manual
4059-XXX
3 LVPS
Interconnect Board If the +42 V dc test point does not
measure approximately +42 V dc,
check the continuity of the cable
connected between J3 on the fuser
control and J1 on the interconnect
board. If the cable does not measure
continuity, replace the cable. If the
cable measures continuity, check the
voltage at CN3-18 on the LVPS. The
voltage measures approximately
+42 V dc. If the voltage is correct,
replace the interconnect board
assembly. If the voltage is incorrect,
replace the LVPS.
4 Fuser DC Cable (Engine
Board to Fuser Board Cable)
Engine Board Check for continuity of the DC fuser
cable that is attached between J2 on
the engine board and J1 on the fuser
control board. If the cable does not
measure continuity, replace the cable.
If the cable measures continuity,
replace the engine board.
FRU Action