Posted By
JamesC
on 2007-04-21
19:03:15
|  Re: @ characters on screen upon bootup
@ after SCNCLR is bad RAM, yes. There was a thread here not so long ago about diagnosing which RAM chip is bad, if you'd like to go further.
However if it were me, I would mark this unit "CPU/TED good, RAM bad" and save it for repair parts. The TED is the most common chip to go bad in a Plus/4 or 16, and it's so much easier to replace than a RAM chip. 
1551 problems are independent of Plus/4 RAM. When you have these two together, does the 1551 give 4 error blinks when it cannot load a DIRECTORY?
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