Lexmark 4079 colorjet printer plus Service Manual - Page 86
IBNil, P
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Power Supply P' 031 0 P We " 91suppty Symptom Explanatior The pi. nt E r does rice. start POST., the display blarik, and there xre ro beeps or l ichts. Conditions That Could C aus? This Symptom 0 AC outlet 0 Power cord 111 Primary fuse 0 Power supply Contrialler board 0 Controller card EPROIM 0 Memory SIMM 001 I Us there power present ,alt the AC outlet? Yes No 002 Have the ope , ax:dr arrange for vi)Itage to the cLtlet. 003 Unplug .tne power o:!,ird and check continuity of the core. Is the continuity (:orrEct? Yes No 004 Replace the po.v(.!r cord. 005 Check the prima() fuse in the power supply. the fuse CIK? Yes No Replace the fuse and test the machine agair.. 2-66 IBNil C:ol Dr r Di 4C79 .11. II AIM. .1 -II .11 .1:11.1 •14:141,14.11 i k i 1O111.11. *dm 11. •1114N4-.,