Digest for sci.electronics.repair@googlegroups.com - 18 updates in 5 topics

OG <OG@notnow.com>: May 03 04:21PM -0700

> A vinyl tube in the ear is the best way of locating strange noises in
> your car's engine bay too.
 
I already have a stethoscope for listening to mechanicals.
Used it to isolate a noise under the hood.
 
 
--- news://freenews.netfront.net/ - complaints: news@netfront.net ---
philo <philo@privacy.net>: May 03 07:56PM -0500

On 05/03/2016 04:27 PM, Clifford Heath wrote:
>> the hose around
 
> A vinyl tube in the ear is the best way of locating strange noises in
> your car's engine bay too.
 
 
 
yep that's the old trick I used to balance the dual SU carburetors on my
'59 Triumph
Jason <jason_warren@ieee.org>: May 04 12:09AM -0400

On Tue, 3 May 2016 11:43:52 -0700 "OG" <AIEO@AIOESPAM.COM> wrote in
article <ngarhd$141a$1@gioia.aioe.org>
 
> Are there smell detectors for locating burned components?
 
Yes. They are called "smoke detectors" and you probably have several in
your house alread!
 
<snark off>
Maurice Helwig <maurice_helwig@internode.on.net>: May 04 03:48PM +1000

On 4/05/2016 3:49 AM, OG wrote:
 
> Please give suggestions.
> First I need to figure out how to get the cover off.
 
> --- news://freenews.netfront.net/ - complaints: news@netfront.net ---
 
Check the smoke Detectors in your house. with that much smoke they
should have gone off.
 
--
~~~~~~~~~~~~
Maurice Helwig
~~~~~~~~~~~~
Wolf K <wolfmac@sympatico.ca>: May 04 08:56AM -0400

On 2016-05-03 20:56, philo wrote:
>> your car's engine bay too.
 
> yep that's the old trick I used to balance the dual SU carburetors on my
> '59 Triumph
 
AKA as garden hose. Cheaper than a stethoscope.
 
 
Best,
Wolf K
kirkwood40.blogspot.ca
MJC <gravity@mjcoon.plus.com>: May 04 03:47PM +0100

In article <PjmWy.6768$Gy4.5578@fx17.iad>, wolfmac@sympatico.ca says...
 
> Best,
> Wolf K
> kirkwood40.blogspot.ca
 
Oh, Wolf, what great big ears you've got!...
 
Mike.
bitrex <bitrex@de.lete.earthlink.net>: May 04 10:44AM -0400

I have an Acer E15 net book that runs Xubuntu. Recently the back
panel of the clamshell case cracked, and I had to replace it with
a part from eBay.
 
This required disassembling the laptop and removing the keyboard
top from the motherboard, which requires removing the keyboard
and touchpad ribbon cable.
 
I've reassembled the laptop and now some of the keys aren't
working...I,O,S,D, etc. I've inspected the ribbon cable and
connector and they don't appear they be damaged, and I've
reseated the cable several times with the same result.
 
Any suggestions?
 
--
 
 
----Android NewsGroup Reader----
http://usenet.sinaapp.com/
Micky <NONONObobbyburns1111@gmail.com>: May 03 09:56PM -0400

I live in Md. and have Verizon copper for phone and DSL. The phone I
use mostly and for these incidents is hard-wired, though fwliw the
base of that phone is also the connection for cordless phones that are
available to it, but none have been in use during this problem: Lately
there have been seemingly random interruptions in my ability to hear,
though others can always hear me.
 
3 times I've been in a long conversation with a friend on a cell phone
with a headset, and for substantial periods, 5 minutes or more, I
couldn't hear her. She'd had trouble with headsets before so we
thought that's what it was. But I was on the phone with a bank
yesterday, and again I couldn't hear him for 3 or 4 minutes.
 
I tried wiggling, pushing and pulling the plug into the handset and
banging on the handset with my hand, and it had no effect. I didn't
touch the base of the phone this time or any of these times, and
nothing strange appeared on the computer which I sometimes use while
on the phone. (The phone is a Uniden, also with cordless phones
available but not in use.)
 
Then all of a sudden it started working again and did so for the rest
of the phone call, 10 minutes or more, and today it worked fine for 90
minutes.
 
Verizon provides the phone and the DSL for the computer. Nothing for
TV. Any idea what the problem could be? ;-) Or what I should try
next?
Micky <NONONObobbyburns1111@gmail.com>: May 03 11:06PM -0400

I live in Md. and have Verizon copper for phone and DSL. The phone I
use mostly and for these incidents is hard-wired, though fwliw the
base of that phone is also the connection for cordless phones that are
available to it, but none have been in use during this problem: Lately
there have been seemingly random interruptions in my ability to hear,
though others can always hear me.
 
3 times I've been in a long conversation with a friend on a cell phone
with a headset, and for substantial periods, 5 minutes or more, I
couldn't hear her. She'd had trouble with headsets before so we
thought that's what it was. But I was on the phone with a bank
yesterday, and again I couldn't hear him for 3 or 4 minutes.
 
I tried wiggling, pushing and pulling the plug into the handset and
banging on the handset with my hand, and it had no effect. I didn't
touch the base of the phone this time or any of these times, and
nothing strange appeared on the computer which I sometimes use while
on the phone. (The phone is a Uniden, also with cordless phones
available but not in use.)
 
Then all of a sudden it started working again and did so for the rest
of the phone call, 10 minutes or more, and today it worked fine for 90
minutes.
 
Verizon provides the phone and the DSL for the computer. Nothing for
TV. Any idea what the problem could be? ;-) Or what I should try
next?
Sjouke Burry <burrynulnulfour@ppllaanneett.nnll>: May 04 05:32AM +0200

On 04.05.16 5:06, Micky wrote:
 
> Verizon provides the phone and the DSL for the computer. Nothing for
> TV. Any idea what the problem could be? ;-) Or what I should try
> next?
 
Does any WIFI work on the same frequency as your phone?
That is what happened to me with a wireless camera.
Which made for a lousy picture with blocks of noise in that.
legg <legg@nospam.magma.ca>: May 04 07:51AM -0500

On Tue, 03 May 2016 23:06:33 -0400, Micky
 
>Verizon provides the phone and the DSL for the computer. Nothing for
>TV. Any idea what the problem could be? ;-) Or what I should try
>next?
 
Each phone should have a filter at their wall connection, if the line
is used also for DSL. No filter going to modem.
 
If they are already present, replace them. A few bucks each.
 
RL
Micky <NONONObobbyburns1111@gmail.com>: May 04 08:34AM -0400

On Wed, 04 May 2016 05:32:29 +0200, Sjouke Burry
>> TV. Any idea what the problem could be? ;-) Or what I should try
>> next?
 
>Does any WIFI work on the same frequency as your phone?
 
Well the phone says it runs on 5.8 MHz. I don't know what wifi runs
on.
 
But it's the phone with a cord that goes to the base station, with a
cord that goes to the central station, via copper, that stops letting
me hear other people. The cordless phones are all off, that is,
on just enough to know if the base station is calling them.
 
>That is what happened to me with a wireless camera.
>Which made for a lousy picture with blocks of noise in that.
 
Wow. I'll keep that in mind.
Micky <NONONObobbyburns1111@gmail.com>: May 04 08:38AM -0400

>>next?
 
>Each phone should have a filter at their wall connection, if the line
>is used also for DSL. No filter going to modem.
 
That's the way it is.
 
There are only two phones connected to the wires. This one that has
the DSL filter (and shows no static or whatever interference the DSL
would cause) and a standard Western Electric dial phone in the
basement, that is on the hook 99.9% of the time, and always when this
problem happens.
 
>If they are already present, replace them. A few bucks each.
 
I'd do that, in fact I still have spares, but are you just saying this
for caution or do you really think one could be going in and out liike
this?
 
Thanks to both of you.
"pfjw@aol.com" <pfjw@aol.com>: May 04 06:56AM -0700

On Wednesday, May 4, 2016 at 8:38:27 AM UTC-4, Micky wrote:
> >>available to it, but none have been in use during this problem: Lately
> >>there have been seemingly random interruptions in my ability to hear,
> >>though others can always hear me.
 
 
I am going to feed back what I understood from your description of the problem.
 
a) You have a Uniden (Chinese) hard-wired all the way phone that goes dumb sometimes - does not speak to the other end.
b) This is the only phone in your dwelling that displays this problem.
c) You have done the obvious - checked the connections, wiggled the jacks and so forth. No help.
These cheap Chinese phones are all-on-a-chip devices, acutely sensitive to any sort of spike on the line and also age out with startling regularity. If no other phone in the house displays this problem, replace the Uniden.
 
Peter Wieck
Melrose Park, PA
Max Muller <maxmuller@info.gathering>: May 04 06:06AM

On Fri, 29 Apr 2016 11:35:08 +0000, Jasen Betts wrote:
 
 
> The backlight in my T400 gave out shortly after the fan and I fumbled the
> inverter card and blew out the controller on the main board so I just use
> it as a stationary computer now.
 
Sorry I haven't responded but I haven't had much progress until today.
 
I left the laptop in the freezer, with cloth around it and a plastic bag
to keep out the moisture, and then I was able to boot it.
 
The fan is spinning at about 2350 RPM according to the psensor command,
but I don't know if that's the right speed or not because I had never
checked before.
 
But at least the fan is now spinning (before it wasn't spinning which I
can see because I popped the keyboard out).
 
Is there a way to "lubricate" the fan bearings?
Max Muller <maxmuller@info.gathering>: May 04 06:39AM

On Thu, 28 Apr 2016 09:10:26 -0600, Buffalo wrote:
 
> Disconnect and reconnect the fan connector several times to make sure the
> connection is good. Doing so, burnishes the contacts some to help ensure a
> better connection.
 
The sticker on the unit says the fan+heatsink is FRU 60Y5493 (Lenovo P/N 60Y4981).
 
The fan is working at the moment but only at around 2500 RPM according to
the psensor graphical command (and I can hear it moving but not objectionably):
http://i.cubeupload.com/UYj76M.gif
 
I can see the fan spin now (before it wasn't spinning) because I have the
keyboard off:
http://i.cubeupload.com/BFVO2s.gif
 
Jason mentioned I might be able to just buy the fan since nothing should
be wrong with the heatsink.
http://cubeupload.com/im/OLuYlU.gif
 
Do you think the fan can be easily purchased alone?
Do you think swapping out just the fan (and not the heatsink) is feasible?
Paul <nospam@needed.com>: May 04 04:02AM -0400

Max Muller wrote:
 
> But at least the fan is now spinning (before it wasn't spinning which I
> can see because I popped the keyboard out).
 
> Is there a way to "lubricate" the fan bearings?
 
Have you verified the fan is a maglev ? The documentation
here, says it doesn't use oil.
 
http://www.sunon.com/tw/products/pdf/maglev.pdf
 
It's as likely to be an issue with excessive friction
causes by dust and hair getting into the bearing
area, as being a need for the addition of oil.
And the device might not be designed for
easy maintenance.
 
You need some realistic mechanical drawings of the
fan, to understand how easy it will be to disassemble
and clean/repair. It may be easier to track down that
information, if an actual Sunon part number is on it.
If it is custom designed as an OEM item by Sunon,
then there might not be any documentation available
for it.
 
Paul
"pfjw@aol.com" <pfjw@aol.com>: May 03 11:18AM -0700

Reforming caps is a fool's task. Replace them. Full stop.
 
Peter Wieck
Melrose Park, PA
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