Digest for sci.electronics.repair@googlegroups.com - 10 updates in 6 topics

Lucifer <LuciferMorningstar@bigpond.com>: Mar 04 07:26PM +1100

The server works as a single CPU unit but I want it all to work.
There are two LEDs on the main board to show power on each
CPU. The LEDs for CPU two are not lit.
 
2009 Intel Xserve (latest). Dual quad core Intel Xeon, 12 gigs
RAM, 900 GB SAS HD.
Look165 <look165@numericable.fr>: Mar 04 12:09PM +0100

First check there are physically 2 CPU.
Either on the board ans in the BIOS (and activated).
 
Lucifer a écrit le 04/03/2019 à 09:26 :
Mike S <mscir@yahoo.com>: Mar 04 01:42AM -0800

On 3/2/2019 11:41 PM, Spare Change wrote:
> seen, seems to be an app) for windows.
> I've searched the 'net but can't find this--or other--service apps for
> Brother. Any pointers to any Brother service apps would be greatly appreciated.
 
I'm on my 2nd Brother laser printer and have never seen a service app to
my knowledge. Just out of curiosity, what is the intended use of the app?
Clifford Heath <no.spam@please.net>: Mar 04 09:50PM +1100

On 3/3/19 6:41 pm, Spare Change wrote:
> seen, seems to be an app) for windows.
 
> I've searched the 'net but can't find this--or other--service apps for
> Brother.
 
Sooo, you're looking for your Brother's keeper?
 
:)
 
Personally, I wouldn't keep a Brother. HP all the way.
Jeff Liebermann <jeffl@cruzio.com>: Mar 03 10:53AM -0800

On Sun, 3 Mar 2019 08:52:10 -0000 (UTC), gregz <zekor@comcast.net>
wrote:
 
 
>> [1] <https://www.ebay.com/itm/292959265795>
 
>Been looking for something like damping grease.
>Greg
 
If you're thinking of making your own, forget it. I tried and failed.
The trick is that it should not evaporate, not creep, and has to be
constant viscosity over a wide temperature range. If you read the
optics forums, you'll find that volatized thread lubricant, deposited
on the internal optics, is a really bad idea. This is not much of a
problem with electronic controls, except perhaps security cameras
inside waterproof domes. Creep is having the grease melt and drip all
over the front panel and the owners fingers. Constant viscosity is
needed to keep the controls from feeling loose when hot, and stuck
when cold. I gave up on making my own and over-paid for the real
stuff.
 
I suggest you NOT use silicone grease, which will creep and land on
the resistance material of a potentiometer or contacts of a switch.
Silicone grease is a good insulator and might produce a bad
connection, especially when mixed with dust and dirt. If this
happens, methinks the best cleaning solvents are hexane or Coleman
camp fuel which is about 25% hexane, and a soapy water cleanup.
 
 
--
Jeff Liebermann jeffl@cruzio.com
150 Felker St #D http://www.LearnByDestroying.com
Santa Cruz CA 95060 http://802.11junk.com
Skype: JeffLiebermann AE6KS 831-336-2558
gregz <zekor@comcast.net>: Mar 04 08:32AM

> connection, especially when mixed with dust and dirt. If this
> happens, methinks the best cleaning solvents are hexane or Coleman
> camp fuel which is about 25% hexane, and a soapy water cleanup.
 
For sliders that sit upright. The particular plastic rails seems
problematic. I tried everything I had including silicone damping fluid, not
on resistance part. The only thing that works is absolute clean, or Deoxit
after it's fully dried. I kept thinking some kind of thick stable grease.
Silicone with TFE nope. Got kit ordered.
 
Greg
Spare Change <noncompliant@notcompliant.zgq>: Mar 03 10:41PM -0800

> a replacement flat belt from Suburban Electronics. They have quite a
> selection of these small drive belts and at very reasonable prices.
> Shipping cost is somewhat less reasonable. Sincerely,
 
JB,
why not replace the disk drive with one of these? ::
 
<https://www.ebay.com/sch/i.html?_from=R40&_trksid=m570.l1313&_nkw=thumb+drive
++3.5"+floppy+drive+emulator%2Csimulator&_sacat=0&LH_TitleDesc=0&_osacat=0&_od
kw=thumb+drive++3.5"+floppy+drive+%28emu>
 
It eliminates the diskette altogether and instead you use a USB flash drive
"memory stick" to move songs to your computer.
 
These USB floppy drive replacements are drop-in, plug-in replacements with
apparently no fuss.
Lucifer <LuciferMorningstar@bigpond.com>: Mar 04 07:31PM +1100

On Sun, 03 Mar 2019 22:41:58 -0800, Spare Change
>"memory stick" to move songs to your computer.
 
>These USB floppy drive replacements are drop-in, plug-in replacements with
>apparently no fuss.
 
I have a "real" floppy drive that plugs into a USB port.
I needed it to install Windows Server 2003 on a Sunfire server.
Spare Change <noncompliant@notcompliant.zgq>: Mar 03 10:29PM -0800

> it powers back on. Then you can use it. I'm about to go hunting for some
> disassembly instructions because it wouldn't power on again today.
 
> Thanks for your reply.
 
Did you find a solution?
tdbridgman2@gmail.com: Mar 03 09:11PM -0800

Thank you! Turning off the switch AND unplugging the unit and waiting until the amber light went out, then plugging back in and turning on the switch, then holding surround mode for 5 seconds for reset worked! It ONLY worked when I followed that procedure. You have to BOTH un plug AND flip the switch off next to the plug.
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