PERQ T2 faults - test-drb@ccmp.vtda.org

17 Aug 2007

Jules,

My PERQ T2 does exactly the same thing. The dreaded
010. 
Eventually if left for a while (10mins+) it goes to 
013 which I think is drive time out.

Once I get chance I'm going to put a Logic analyser on
the
disk terminals to get a better idea what's happening.

I also tried a ST-506/412 drive with the same result.

Tony also mentioned that its possible to connect an
analyser
to the front of the CPU card to see where the CPU has
stepped to.

Cheers

Ian

...
  This machine has a 5.25" ST-506/412 drive in it.
I don't 
...
  think it's the one 
 with the dreaded sticking rubber problem; at any rate I've 
...
  had it spinning up 
 on the bench - there seems to be a healthy clunk as heads 
...
  unpark, and it 
 doesn't spin down, suggesting that side of things is healthy.
...

 Other question: at the point when it's doing whatever checks 
...
  yield the 010 
 code, should the display have initialised and be displaying 
...
  anything? I'm 
 getting nothing out of this system - but it's entirely 
...
  possible that the 
 display init is further down the boot process, and so it's 
...
  never getting that 
 far... (Anyone know which manual contains the pinouts for the 
...
  video output and 
 landscape display?)

 ta

 Jules

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