On 30 May 2012 20:19, John Thornton <[email protected]> wrote:

> In that manual after a fault I have 4 status LED's lit up. On page 6-143
> the bottom 4 LED's are lit. Which one caused the fault I can't tell.

Line Supply Fault and DC Overvoltage sound possible.

> The machine schematic does not show a neutral connected at the stepup
> transformer

True, it is unconnected in Fig 7.3, but that also shows a power supply
with a PEN.

If you look at 7.4 and 7.5 those both show an isolating transformer
with the output neutral earthed.

-- 
atp
If you can't fix it, you don't own it.
http://www.ifixit.com/Manifesto

------------------------------------------------------------------------------
Live Security Virtual Conference
Exclusive live event will cover all the ways today's security and 
threat landscape has changed and how IT managers can respond. Discussions 
will include endpoint security, mobile security and the latest in malware 
threats. http://www.accelacomm.com/jaw/sfrnl04242012/114/50122263/
_______________________________________________
Emc-users mailing list
[email protected]
https://lists.sourceforge.net/lists/listinfo/emc-users

Reply via email to