[comp.terminals] Need tech info on Z29; screen memory failing

epsilon@wet.UUCP (Eric P. Scott) (09/03/89)

I have a Zenith-29 that's started showing single-bit errors in
its screen memory.  Only one is "hard"--the others show up a few
seconds after a character's written.  There are about 8 bad
spots, and it seems to be getting worse.  Maybe a refresh problem?
I don't have the tech manual/schematic.  This thing's a little
over six years old.

Reply by e-mail, please.
					-=EPS=-
			cca.ucsf.edu!wet!epsilon@cgl.ucsf.edu
			claris!wet!epsilon@ames.arc.nasa.gov

epsilon@wet.UUCP (Eric P. Scott) (09/08/89)

Thanks to all that responded (so quickly, too!).
Apparently this is one of the more commonly seen problems;
the culprit is most likely the HM6116LP-4 2Kx8 SRA< located at
U417.  Replacement costs were cited at between <$2 and $10--one
person referred to it as a "common garden-variety" and another
wondered if they were still made!

					-=EPS=-