Lexmark E238 Service Manual - Page 118
Dead machine service check, CAUTION
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4511-xxx Dead machine service check CAUTION: Check the AC line voltage. The voltage should be within the following limits: • 100 V ac (volts alternating current) - 127 V ac for the 110 V printer • 200 V ac - 240 V ac for the 220 V printer FRU LVPS/HVPS Action Unplug the printer and check the fuses on the LVPS/HVPS board for continuity. • If open, replace the LVPS/HVPS board. If fuse opens again, see "LVPS/HVPS service check" on page 2-90 for more information. • If not open, unplug the cables at CN102 and CN201 (fuser and controller card respectively). Plug LVPS/HVPS board to source and turn switch on. Verify 24 V dc on pin 8 at connector CN201 (or pin 8 at J4 on the controller card). Verify line voltage (100 V, 110 V, or 220 V ac) across pins 1 and 2 of CN102. • If voltages are not correct for the geography, replace the LVPS/HVPS board. • If voltages are correct, check the controller card. See "Controller card" on page 5-3. Verify grounds. See the wiring diagram at the end of the book. 2-86 Service Manual