DEC H7260 PSU fault

Jules Richardson jules.richardson99 at
Sat Jan 27 15:02:48 CST 2018

On 01/27/2018 02:43 PM, Jules Richardson via cctalk wrote:
> There's a ref here for the status codes:

OK, looking at the 630QB tech manual now, which seems to be where these 
were lifted from... and of course it points out that the LEDs on the M7606 
correspond to the hex codes on the panel (i.e. my four red LEDs with the 
middle pair flashing on and off equate to the alternating F-9 I'm seeing on 
the hex LED)

The green LED on the CPU board is 'DC OK' and I'm also getting a green 'DC 
OK' on the front of the machine, and it seems odd those would be lit if 
there were a DC fault... but who knows. No explanation of the flashing 
codes, either; the manual seems to imply that it steps through in sequence 
down from 'F' and will stop when there's a fault.



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