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Å4y 07* 24656Md k 21224 3)4 47 3)*8 421 3'1<* 1' 4G475l8 No display All wire harness connections OK? All fuses OK? F3 and F4 blown? Repair and retest Check keyboard cable for improper connection Does the display self-test? Display voltages OK? Test power supply unloaded Hard re-initialize unit as described in step 14g Replace keyboard/display Power supply voltages OK? Does the sign-on ,essage appear? Unplug keyboard cable from main board and see flowchart note on
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