Blade 2500(red) totally dead. Bad pwr-supply, off-on button, maybe?
David Combs
up my sunblade 2500(red).
[I say "red" because the later
version of the 2500 is titled "silver". And red and silver
each has its own manuals.]
I turn the UPS back on, wait until it beeps, then hit the
on-off button on the 2500.
Nothing happens. No fans, no lights. NADA. DEAD.
I get my beep-when-near-110VAC-thats-live thingie; yep, power cord
beeps ok. I even unplug it from the machine, hold it up
high away from everything else, and it still makes a beeping.
A couple of hours later, I even unplug it again, and stick
the leads from my VOM (volt-ohm-meter (amps too)), and yep,
reads 120.5 VAC. Lotsa power available.
I call the people I bought it from (Livewire, in Toronto (even
though I live 20 miles north of NYC)), and am told to hold down
both the diamond and moon keys, that that often will bring
a 2500 (or any sparc, or any sun?) out of some deep sleep (coma?).
Nada.
Meanwhile, the people at Livewire are talking about sending
me a new power supply.
So, I have a look inside the machine, and there must
be a jillion wires (in one large bundle) coming out of
the power-supply, each one going to some different component.
You know, there's ZERO chance that klutz-fingered me -- that I'm
*ever* going to be able to get a new one hooked up right.
(Yeah, eons ago, I built that huge Heathkit "ham" receiver;
but when finished, I had to have them fix my wiring and solder
errors, to make it actually work. Am no good with intricate things!)
Man, am I in one deep hole! Monster 2-cpu machine, and looks like
I'm the one who's gotta fix it.
----
So I call my recently-acquired-and-paid-for sun SOFTWARE service
(nope, unable to get (buy) sun hardware service -- 2500 line
has long passed its "end of service [availability] date"), but
if simultaneous key-presses (QUESTION: is the word "chord" (as via
piano) the commonly term for that simultaneous key-pressing?)
are a possible solution, then it should qualifies as a "software"
problem, yes?
Anyway, the sun-service guy finally calls, and at maybe 20min of
discussing the problem, I just happen to notice that my "empty" (ie
unused) 4-port powered usb-hub is plugged into one of the 2500's
4 usb ports. Heck, might as well get rid of
some messy power-cords and connecting-wire, clear the decks, so to
speak. So, for general cleanliness, I unplug it.
Instantly, this noise I'd been hearing but couldn't track down
and had finally blamed on my "turn on the power at x time, off
at y time, etc" (to my tape-recorder for fm-recording at 3am), which
made the same kind of low-level "grinding" noise --
(my ears' location-ability ain't been so good the last decade
or so) STOPPED. IT ALL BECAME QUIET!
Hmmm. Obviously, something happened, via the unplugging of the hub.
So just for the hell of it, really, you know -- no hope,
but why not?, I hit the ole off-on button. Blow me over --
up it comes, and within a minute or so, it's at ok.
WOW!
Now, at least to me, that's one *huge* surprise. How in the
world can a stupid (perhaps faulty?) usb-hub, plugged into
one of the 4 usb-ports, keep the machine from at least TURNING ON?
You know, like starting the fans, even.
Comments? Explanations?
Has this happened to other people?
THANKS!
David
Dave
>
> (Yeah, eons ago, I built that huge Heathkit "ham" receiver;
> but when finished, I had to have them fix my wiring and solder
> errors, to make it actually work. Am no good with intricate things!)
>
> Man, am I in one deep hole! Monster 2-cpu machine, and looks like
> I'm the one who's gotta fix it.
A camera can be very handy for this. Many years ago I owned a 1975 Rover 3500S
(a great car IMHO). Aircon was an option on this car, but in the UK, it was
extreamly rare to find one with aircon. I managed to track one down in the
breakers, and removed the aircon over a period of 3 days! I photographed every
stage, so I knew where the bits went back. I think the gugs in the breakers yard
found it a bit funny, and told me I'd never make a 'car breaker' if it took me 3
days. But I got all the bits out, and with the photos managed to integrate the
aircon back into my rover.
So if you do ever have the problem, just photograph each stage. Then you can go
back and see where things came from. If you get stuck, no doubt a photo suck on
the web might bring help.
> I just happen to notice that my "empty" (ie
> unused) 4-port powered usb-hub is plugged into one of the 2500's
> 4 usb ports. Heck, might as well get rid of
> some messy power-cords and connecting-wire, clear the decks, so to
> speak. So, for general cleanliness, I unplug it.
>
> Instantly, this noise I'd been hearing but couldn't track down
> and had finally blamed on my "turn on the power at x time, off
> at y time, etc" (to my tape-recorder for fm-recording at 3am), which
> made the same kind of low-level "grinding" noise --
> (my ears' location-ability ain't been so good the last decade
> or so) STOPPED. IT ALL BECAME QUIET!
>
> Hmmm. Obviously, something happened, via the unplugging of the hub.
>
> So just for the hell of it, really, you know -- no hope,
> but why not?, I hit the ole off-on button. Blow me over --
> up it comes, and within a minute or so, it's at ok.
>
>
> WOW!
>
> Now, at least to me, that's one *huge* surprise. How in the
> world can a stupid (perhaps faulty?) usb-hub, plugged into
> one of the 4 usb-ports, keep the machine from at least TURNING ON?
>
> You know, like starting the fans, even.
>
>
>
> Comments? Explanations?
It sounds odd I must admit. Even a dead short in the USB connected device should
only disable the USB circuitry. It has current limiting.
--
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by others. They are leeches.
Richard B. Gilbert
If there's a short circuit in the USB power wiring your power supply may
be saving you from "smoke and flames"!
Try plugging your USB devices in one at a time. You just might find the
device causing the problem.
Could it be the sheer NUMBER of devices?
Richard B. Gilbert
> David Combs wrote:
>>
>> (Yeah, eons ago, I built that huge Heathkit "ham" receiver;
>> but when finished, I had to have them fix my wiring and solder
>> errors, to make it actually work. Am no good with intricate things!)
>>
>> Man, am I in one deep hole! Monster 2-cpu machine, and looks like
>> I'm the one who's gotta fix it.
>
>
> A camera can be very handy for this. Many years ago I owned a 1975 Rover
> 3500S (a great car IMHO). Aircon was an option on this car, but in the
> UK, it was extreamly rare to find one with aircon. I managed to track
> one down in the breakers, and removed the aircon over a period of 3
> days! I photographed every stage, so I knew where the bits went back. I
> think the gugs in the breakers yard found it a bit funny, and told me
> I'd never make a 'car breaker' if it took me 3 days. But I got all the
> bits out, and with the photos managed to integrate the aircon back into
> my rover.
>
> So if you do ever have the problem, just photograph each stage. Then you
> can go back and see where things came from. If you get stuck, no doubt a
> photo suck on the web might bring help.
>
A "photo suck"? It sounds vaguely obscene!
Dave
>
> If there's a short circuit in the USB power wiring your power supply may
> be saving you from "smoke and flames"!
>
> Try plugging your USB devices in one at a time. You just might find the
> device causing the problem.
>
> Could it be the sheer NUMBER of devices?
Overcurrent on USB devices is not an uncommon issue. But the Sun's USB ports
should go into current limiting. It should not stop the machine from working.
I've seen messages in /var/adm/messages about excessive current, and shutting
down the USB port, but never has it stopped the machine working.
dave
David Combs
>David Combs wrote:
>>
>> (Yeah, eons ago, I built that huge Heathkit "ham" receiver;
>> but when finished, I had to have them fix my wiring and solder
>> errors, to make it actually work. Am no good with intricate things!)
>>
>> Man, am I in one deep hole! Monster 2-cpu machine, and looks like
>> I'm the one who's gotta fix it.
>
>
>A camera can be very handy for this. Many years ago I owned a 1975 Rover 3500S
>(a great car IMHO). Aircon was an option on this car, but in the UK, it was
>extreamly rare to find one with aircon. I managed to track one down in the
>breakers, and removed the aircon over a period of 3 days! I photographed every
>stage, so I knew where the bits went back. I think the gugs in the breakers yard
>found it a bit funny, and told me I'd never make a 'car breaker' if it took me 3
>days. But I got all the bits out, and with the photos managed to integrate the
>aircon back into my rover.
>
>So if you do ever have the problem, just photograph each stage. Then you can go
>back and see where things came from. If you get stuck, no doubt a photo suck on
>the web might bring help.
>
Thanks for the idea.
Obvious, yes, but I sure didn't think of it!
So thanks again.
David
David Combs
Richard B. Gilbert <rgilb...@comcast.net> wrote:
>>
>> Comments? Explanations?
>>
>>
>
>If there's a short circuit in the USB power wiring your power supply may
>be saving you from "smoke and flames"!
>
>Try plugging your USB devices in one at a time. You just might find the
>device causing the problem.
>
>Could it be the sheer NUMBER of devices?
No, there was NO device plugged into it. So the hub was
sitting there, plugged into the 2500, with four empty
slots/ports/whatever in the hub-device itself.
David
David Combs
>Richard B. Gilbert wrote:
>
>>
>> If there's a short circuit in the USB power wiring your power supply may
>> be saving you from "smoke and flames"!
>>
>> Try plugging your USB devices in one at a time. You just might find the
>> device causing the problem.
>>
>> Could it be the sheer NUMBER of devices?
>
>
>Overcurrent on USB devices is not an uncommon issue. But the Sun's USB ports
>should go into current limiting. It should not stop the machine from working.
>I've seen messages in /var/adm/messages about excessive current, and shutting
>down the USB port, but never has it stopped the machine working.
>
>dave
Well, now (vicariously) you have!
David
Barry OGrady
<rgilb...@comcast.net> wrote:
>Dave wrote:
>> So if you do ever have the problem, just photograph each stage. Then you
>> can go back and see where things came from. If you get stuck, no doubt a
>> photo suck on the web might bring help.
>>
>
>A "photo suck"? It sounds vaguely obscene!
Breakers sounds odd too. I think he means wreckers.
=-=-=
Barry
http://members.iinet.net.au/~barry.og
Richard B. Gilbert
> On Tue, 17 Nov 2009 07:31:06 -0500, "Richard B. Gilbert"
> <rgilb...@comcast.net> wrote:
>
>> Dave wrote:
>
>>> So if you do ever have the problem, just photograph each stage. Then you
>>> can go back and see where things came from. If you get stuck, no doubt a
>>> photo suck on the web might bring help.
>>>
>> A "photo suck"? It sounds vaguely obscene!
>
> Breakers sounds odd too. I think he means wreckers.
>
"Two Peoples separated by a common language!"