|27th July 2012, 10:43 PM||#11|
Join Date: May 2008
Just to give you guys and idea of the complexity of this project - it's nothing like what has been previously mentioned.
The daughter "control" board I spoke of has 28 surface mount IC chips ( an an uncountable number of micro chip parts as well ) within a double sided PCB that I guess is about 6 x 4inches in size - that you can only read information with a magnifier. The tracks that wire them are hair thin, maybe thinner in places.
Additional to that, there is a 48 pin 90 degree header connector joining the daughter and mother PCB's together ( yes the bastard is soldered on ) and the tracks again are hair thin.
Even with my wizz-bang new Xytronics DIA-60 De-soldering Iron ( which went out cheap at "Tricky Dicky" - Dick Smith - a few years ago ) and a new tip, I'm having great trouble just de-soldering the header connector joining the 2 boards because of the through hole plating.
Adding further insult to injury - all the the parts on the daughter PCB are surface mount - which I hate - as I can't see the bloody things without glasses and a magnifier. On the other PCbs you have about 15 large heatsinks scattered about with chip components buried underneath - meaning the heatsinks have the be removed to see the PCB wiring below. ( maybe I've lost the plot on all this and need to get a life !)
The main connector that connects the enclosed power supply module into the server has a small 24 gold pin secondary connector ( using all 24 pins of course ) back into the main server wiring. Having information on this wiring hookup will at least get the bugger to activate on the bench - before any mods can be done.
So the task of just getting the supply fired up on the bench is a challenge in itself.
The up side to all this is - the Manager of one of the US Companies I emailed, has gotten back to say "I need the service documentation" ( dah !!!) which he is looking into chasing for me ( but don't hold your breath waiting for it ! ).
If I can procure this it "might" ( I say "might" - because I'm still not confident its a plug and play setup. ) save, me a lot of grief.
I'm quite concerned de-soldering the PCB's will stuff them once and for all, because linking broken tracks is not realistic in this sort of manufacturing technology.
Anyone got any better Ideas !
( Maybe at the end of the day - I'll just go and buy a big power supply and be done with the hassle ! )
Last edited by kimbal; 27th July 2012 at 10:53 PM.
|30th January 2013, 09:40 AM||#12|
Join Date: Jan 2013
Connector Pinouts - Sun Fire X4600 and Sun Fire X4600 M2 Servers Service Manual
this is pinout for power supply SUN, but newer model then v880. But pin A1 is PS_ON - I think that is it.
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