[comp.sys.mac] Help Needed: Mac II Hardware Problem

woo@amelia (Alex Woo) (10/20/87)

	I purchased a Mac II in June  and found
	that many of my programs failed to run correctly on the
	new machine.  I originally thought this was due to ROM and
	Finder incompatibilities.  I am now receiving upgrades which
	are reputed to be Mac II compatible and still having
	problems so I am more inclined to suspect hardware problems.
	Of course, the 90 day warrantly has just expired.

	The two programs (besides games) with the most problems are
	LightSpeed Pascal version 1.11a and TeXTures 1.0.  I have
	verified that these programs run correctly on other MacII's.
	The bombs aren't totally consistent but usual consist of
		BUS ERR8FFC6000		MOVE.L (A0)+,(A1)+ 
	and the nearest ROM trap is
		In ROM C826DC0 A05A PrimeTime
	OR, 
		CoPr ERR 
	or loss of horizontal sync of my monochrome monitor.

	Before I try to find an authorized
	Apple Dealer, I would like to have an inkling of the
	problem.  If you have a hardware reference manual, could
	you look up the CoPr ERR message or the BUS ERR message
	and drop me a note. Any help you might give would be 
	greatly appreciated.


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Alex Woo, MS 227-2		|	wu@ames-aero.arpa
NASA Ames Research Center	|	woo@ames-nas.arpa
Moffett Field, CA 94035		|	{seismo,topaz,lll-crg,ucbvax}! 
Phone: (415) 694-6010		|	ames!pioneer!woo
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  {hplabs,hao,ihnp4,decwrl,allegra,tektronix,menlo70}!ames!pioneer!woo
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