IBM 2140, 2142 manual Layout-Type 5-2, System Board Run theEasy

Layout—Type		A-1” on	page 5-2, and			“System	Board	Layout—Type
A-2” on	page 5-5.
– Run theEasy	Test	Diagnostics	test	again.
– If an error or other			symptom	is	displayed,		go	to “Index of Symptoms,
Messages,	Error	Codes,	or Beeps”		on	page 2-9.

–If no error can be detected or the symptom is intermittent, go to “Undetermined Problem” on page 2-56.

Check Procedures2-45