Digest for sci.electronics.repair@googlegroups.com - 25 updates in 6 topics

plantedinapot@gmail.com: May 06 06:39AM -0700

On Sunday, March 1, 2015 at 2:18:44 PM UTC-5, Jeff Liebermann wrote:
> 150 Felker St #D http://www.LearnByDestroying.com
> Santa Cruz CA 95060 http://802.11junk.com
> Skype: JeffLiebermann AE6KS 831-336-2558
'
that's a user guide not a service manual you dumb shit. try knowing anything about what you're talking about before posting... prick.
Geo <nhhu-o3hu@dea.spamcon.org>: May 06 03:42PM +0100

On Fri, 6 May 2016 06:39:51 -0700 (PDT), plantedinapot@gmail.com
wrote:
 
>On Sunday, March 1, 2015 at 2:18:44 PM UTC-5, Jeff Liebermann wrote:
>> On Sun, 1 Mar 2015 09:52:30 -0800, DaveC <invalid@invalid.net> wrote:
 
<snip>
 
>'
>that's a user guide not a service manual you dumb shit. try knowing anything about what you're talking about before posting... prick.
 
 
Wow - took you a year to read that then?
Jeff Liebermann <jeffl@cruzio.com>: May 06 07:51AM -0700

On Fri, 6 May 2016 06:39:51 -0700 (PDT), plantedinapot@gmail.com
wrote:
 
>> salvaged parts on eBay. Good luck.

 
>that's a user guide not a service manual you dumb shit. try knowing
>anything about what you're talking about before posting... prick.
 
You're welcome. You might want to skim the table of contents for
Chapter 4 "Maintain and Troubleshoot" which includes quite a bit on
how to deal with the usual error messages and ink/mechanical problems.
However, if you're expecting a schematic or part numbers for
individually replaceable parts, you obviously haven't tried to fix any
recent HP products. In the likely case that this does not produce
instant enlightenment, please re-read what I posted about "no user
serviceable parts inside" in my reply which you conveniently quoted.
 
--
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
"Ian Field" <gangprobing.alien@ntlworld.com>: May 05 08:25PM +0100

<jurb6006@gmail.com> wrote in message
news:5d0b87f1-f986-4dfb-a5dc-88fd429ba292@googlegroups.com...
> comes billowing out of there, don't worry about it.
 
> He said it did not set off the smoke detectors...
 
> Hmm. I think it would if he really saw a roomful of smoke.
 
The ionisation type detect smoke particulates, the steam from a venting
electrolytic may not trigger it.
 
The optical smoke detectors respond to anything that stops the IR beam
reaching the other device in the sensor.
"Ian Field" <gangprobing.alien@ntlworld.com>: May 05 08:27PM +0100

<jurb6006@gmail.com> wrote in message
news:ba5c6639-248d-43df-ae47-44afce8672bd@googlegroups.com...
>>killing the RAM, hard disk, modem, CPU. "
 
> Exploded resistors do not overload other components, at least not in
> something like this. What happened is all the damage happened at once.
 
Some cheaper WW resistors are wound on a glass rod instead of ceramic -
glass becomes electrically conductive at red heat.
jurb6006@gmail.com: May 05 02:05PM -0700

>"Some cheaper WW resistors are wound on a glass rod instead of >ceramic -
>glass becomes electrically conductive at red heat. "
 
And what makes them red hot ?
 
Power dissipation. Too much of it caused by too much voltage across it which causes too much current to flow which causes too much wattage to need to dissipate which raises the temperature.
 
Resistors do not lower in value unless abused. Even then, more than half the time they open up.
 
I really screwed up before thinking this was a laptop, but in a desktop if something actually burns on the motherboard it is almost always a power supply that went open loop and threw too much voltage at it.
 
Still, one of the USB devices could have been shorted. That is a possibility. He might have just got it set up to copy when it just couldn't take anymore, because it is not that likely that accessing it would cause a short.
 
I think it highly possible that this is a case where the power supply coincidentally occurred at that time. If that's the case, it is already fried.
"Andy" <N@n.com>: May 06 02:21AM -0400

You are aware that first alert is owned by kiddie now right?
they put out units under each name and with varying prices.
just like most THINK FIREX is junk WRONG its also owned by kiddie.
As for the resistor it was a big one in a thousand watt gaming power supply
and let me tell you between it buring up and the plastic around it from the
heat it created it was a nice smoky mess:)
 
 
--
AL'S COMPUTERS
"Jeff Liebermann" <jeffl@cruzio.com> wrote in message
news:snplib524emv502897ngos37guv2an8dtj@4ax.com...
"Mark Zacharias" <mark_zacharias@sbcglobal.net>: May 06 04:06AM -0500

"Andy" <N@n.com> wrote in message
news:-PSdnUP2abKUpbHKnZ2dnUU7-R3NnZ2d@earthlink.com...
> As for the resistor it was a big one in a thousand watt gaming power
> supply and let me tell you between it buring up and the plastic around it
> from the heat it created it was a nice smoky mess:)
 
<snip>
 
The other day an UNUSED! SATA connector in my desktop computer shorted out
at the free end filling the room with smoke and shutting down the computer.
 
You can do a Google image search for "burned SATA connector" and see the
type of damage I had.
 
Fairly common problem, apparently.
 
 
Mark Z.
jurb6006@gmail.com: May 06 03:27AM -0700


>You can do a Google image search for "burned SATA connector" and see >the
>type of damage I had.
 
>Fairly common problem, apparently."
 
That is progress.
Jeff Liebermann <jeffl@cruzio.com>: May 06 07:40AM -0700


>You are aware that first alert is owned by kiddie now right?
 
No, I wasn't aware of that. Looking at the Wikipedia page, First
Alert seems to be owned by Jarden Branded Consumables.
<https://en.wikipedia.org/wiki/First_Alert>
No mention of Kidde.
 
The Kidde page shows that they're part of UTC (United Technologies
Corporation) as UTC Fire & Security. No mention of First Alert.
<https://en.wikipedia.org/wiki/Kidde>
 
I don't have time right now to chase down the details, but it seems to
me that they're seperate and unrelated companies. Are you sure?
 
>they put out units under each name and with varying prices.
>just like most THINK FIREX is junk WRONG its also owned by kiddie.
 
Yep. Firex is part of Kiddie:
<http://www.kidde.com/home-safety/en/us/about/Firex/>
Looks like they're recommending total replacent of anything labeled
Firex.
 
>As for the resistor it was a big one in a thousand watt gaming power supply
>and let me tell you between it buring up and the plastic around it from the
>heat it created it was a nice smoky mess:)
 
Ok, that's different. Big power can generate plenty of smoke. I
would expect a smoke alarm to respond fairly quickly to a "nice smoky
mess". You also won't need a vinyl hose "sniffer" to find the source.
Just look for the crater when the smoke clears.
 
--
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
Micky <NONONObobbyburns1111@gmail.com>: May 05 09:38PM -0400

On Wed, 4 May 2016 06:56:19 -0700 (PDT), "pfjw@aol.com" <pfjw@aol.com>
wrote:
 
 
>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.
 
Now that you mention it, I spend almost all my time on this phone, and
I will start keeping a cordless phone next to it, so when this one
goes half-dead, I can see if the cordless works.
 
I would think they share very few parts, that the wireless is as
separate from the wired as a second wired phone would be.
 
And I'm betting it won't affect the wireless because I think the only
part the wireless and wired share is the phone jack and maybe the
internal wires to it.
 
>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.
 
Hmmm. We'll see how long it takes until it happens again. (on the
phone for an hour yesterday with no problems)
 
> If no other phone in the house displays this problem, replace the Uniden.
 
I do have another compatible base station with a wireless phone
instead of wired. It's around here someplace, in the original box, so
it might be possible to find it. It was cheaper to buy two two-phone
sets than an phone and 2 other wiresless extensions. Before ebay
stops selling them, I should buy one or two more extensions for when
mine break. Maybe I'll buy another whole set with a wired base
station instead. (I've had the phones 4 - 6 or more years and this
is the first problem.)
 
Thansk. (It's near Gdansk.)
 
thekmanrocks@gmail.com: May 06 03:44AM -0700

Micky wrote: "Now that you mention it, I spend almost all my time on this phone, and
I will start keeping a cordless phone next to it, so when this one "
 
 
Do a search for Goodwills or Salvation Armys in
your area. Periodically they do get in old SW
Bell or AT&T touch tone and trimline sets.
Weigh a ton, and come in your choice of beige,
beige, or, beige(!), but they're American built
and are tough as bricks. ;)
Micky <NONONObobbyburns1111@gmail.com>: May 06 07:18AM -0400


>Micky wrote: "Now that you mention it, I spend almost all my time on this phone, and
>I will start keeping a cordless phone next to it, so when this one "
 
>Do a search for Goodwills or Salvation Armys in
 
I know where they all are already.
 
>Weigh a ton, and come in your choice of beige,
>beige, or, beige(!), but they're American built
>and are tough as bricks. ;)
 
And I have a couple of those already.
 
Thanks for the suggestion.
legg <legg@nospam.magma.ca>: May 06 07:41AM -0500

On Wed, 04 May 2016 08:38:21 -0400, Micky
>this?
 
>Thanks to both of you.
>>RL
 
I stick a DSL filter on the old phones as well, just to keep the line
impedances in a known state, for DSL integrity where it's needed (not
for phone quality).
 
Early Uniden hand-sets do funny stuff, but am aware of happy campers
as well. I don't use wireless here.
 
Sounds internal - AGC and compression in the voice handling - either
something detecting false levels on the mic, or a failing to return to
the Rx from Tx states ~flakey mike, cord or even chip. As with most
stuff, it's not intended to be repaired.
 
RL
Oren <Oren@127.0.0.1>: May 05 10:57AM -0700

On Thu, 5 May 2016 01:14:25 -0000 (UTC), Danny DiAmico
 
>9. Other options were to buy a new ($200 to $300) or used ($100 to $200) MMU.
>10. Or a new washing machine ($600 to $800).
> http://i.cubeupload.com/ErHVuc.jpg
 
Danny,
 
Have you read the warranty for what is actually covered? (Power surges
or installed by a homeowner, acts of God) :-\
ohger1s@gmail.com: May 05 11:24AM -0700

On Thursday, May 5, 2016 at 1:57:46 PM UTC-4, Oren wrote:
 
> Danny,
 
> Have you read the warranty for what is actually covered? (Power surges
> or installed by a homeowner, acts of God) :-\
 
Wouldn't matter; any part is subject to the same exclusions. I had Circuit Board Medics rebuild a Mazda PCM and it developed a problem a year later. They said send it back, and it came back in two days no charge. This is a real good company and I wouldn't hesitate to recommend them for any kind of PC work.
 
John
Danny DiAmico <dannydiamico@yahoo.com>: May 05 08:25PM

On Thu, 05 May 2016 10:57:38 -0700, Oren wrote:
 
> Danny,
 
> Have you read the warranty for what is actually covered? (Power surges
> or installed by a homeowner, acts of God) :-\
 
Naah. I'm not a believer in warrantees.
 
A lot of people buy batteries, for example, based on the warranty, which
is ridiculous for something so easily characterized by its physical
attributes. Same with tires which have standardized tests run on them
(yes, I know the tests are flawed, but relying on the standard government
tests is better than relying upon marketing warrantees).
 
In fact, I can't think of more than one or two instances in my entire
life that I've actually made good on a parts warranty anyway.
 
So, I'm not really worried about the warranty. I'm more worried that
I just paid almost $200 to repair something that is only worth about
3 to 4 times that, which is an almost unacceptable level of repair.
 
In fact, parting out washing machines must be a lucrative business
because the darn thing only has about a dozen major parts, so, if each
major part is $200, then I should *buy* new washing machines and part
them out as a business to supplement my retirement.
Danny DiAmico <dannydiamico@yahoo.com>: May 05 08:34PM

On Thu, 05 May 2016 20:25:26 +0000, Danny DiAmico wrote:
 
> In fact, I can't think of more than one or two instances in my entire
> life that I've actually made good on a parts warranty anyway.
 
By the way, since I wonder what you guys think of the three shipping
services, as I ran into the following "issue" trying to ship a 2 pound
box from California to South Carolina.
 
1. USPS
2. UPS
3. Fedex
 
USPS
Since I needed to trust that the parts got there and that they weren't
lost, and since I didn't pay for insurance (I never do), I didn't use
the USPS because, in my experience, USPS may be inexpensive, but they're
quite unreliable (highly unreliable in fact).
 
UPS
Normally, I have no problem with UPS being the cheapest shipper and the
second most reliable shipper. But in this case, UPS was $18 so I walked
out the door and headed over to FedEx to check their prices.
 
FedEx
Normally I find FedEx the most reliable but often the most expensive,
but in this case, they were 3 dollars cheaper (on a $15 price, which
is a whopping 20%) so, I went with FedEx five day.
 
Do you normally find FedEx to be cheaper than UPS?
I thought it was normally the other way around?
JC <Chipbee40_SpamNo@yahoo.com>: May 05 04:49PM -0400

On 5/5/2016 4:34 PM, Danny DiAmico wrote:
> On Thu, 05 May 2016 20:25:26 +0000, Danny DiAmico wrote:
 
 
> Do you normally find FedEx to be cheaper than UPS?
> I thought it was normally the other way around?
 
Fedex, always cheaper.
 
Have you not heard of Ebay?
 
http://www.ebay.com/itm/Whirlpool-Kenmore-FL-Washer-MOTOR-CONTROL-BOARD-8540540-W10163007-WFW8500SR00-/141974974420?hash=item210e5e2fd4:g:zo4AAOSwjMJXC~dR
 
If the link is not working its Ebay item 141974974420
 
There's probably other listings
Chuck <chuck@mydeja.net>: May 05 04:33PM -0500

On Thu, 5 May 2016 20:34:26 -0000 (UTC), Danny DiAmico
>is a whopping 20%) so, I went with FedEx five day.
 
>Do you normally find FedEx to be cheaper than UPS?
>I thought it was normally the other way around?
 
Where I am in OK., Fed Ex is extremely unreliable. They deliver to
the wrong address, claim they have come to your house when they have
not and have claimed they can't find a normal street address. USPS and
UPS are both very reliable.
 
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Danny DiAmico <dannydiamico@yahoo.com>: May 05 10:30PM

On Thu, 05 May 2016 16:49:28 -0400, JC wrote:
 
> Fedex, always cheaper.
 
 
I'm actually surprised that FedEx is "always cheaper" than UPS.
If that's true, I wonder why?
 
Of course, it could be simply a business decision, or, maybe they
have inherent efficiencies over UPS?
 
Why would Fedex be "always cheaper" than UPS (for typical packages)?
 
 
> Have you not heard of Ebay?
 
Of course.
When I googled for the part, I saw $25 boards on Ebay.
While I love a good price as much as anyone does, the range for the boards was
from $25 to $250 aftermarket, and $300 OEM from Whirlpool.
 
The problem with that is I don't have the EXPERIENCE to know which Ebay
supplier is reliably providing a good board or not.
 
While I'm all for taking risks, you usually have to offset a risk
with some knowledge. For example, I don't buy tire warrantees because
I can fix my own flats, so, I ameliorate the risk.
 
I didn't have the knowledge to buy a $25 board on Ebay and get
away with it on the first shot by getting a good part.
 
 
> http://www.ebay.com/itm/Whirlpool-Kenmore-FL-Washer-MOTOR-CONTROL-BOARD-8540540-W10163007-WFW8500SR00-/141974974420?hash=item210e5e2fd4:g:zo4AAOSwjMJXC~dR
> If the link is not working its Ebay item 141974974420
> There's probably other listings
 
I saw that EXACT board when I first googled, as I remember the
writing on the metal heat sink. The problem is that I don't
have enough information to TRUST that $60 price. Yeah, I see
the 98% feedback but I don't know how much I can trust that.
 
Like anyone, I'd rather pay $60 + $15 +$15 = $90 over
$145 + $15 = $160 but I feel I can trust the circuit board medics,
while I'm not sure what to trust in that board.
 
So, I *would* have gone for the $25 board if I had more information,
but I didn't have enough to trust Ebay.
JC <Chipbee40_SpamNo@yahoo.com>: May 05 07:22PM -0400

On 5/5/2016 6:30 PM, Danny DiAmico wrote:
 
> Of course, it could be simply a business decision, or, maybe they
> have inherent efficiencies over UPS?
 
> Why would Fedex be "always cheaper" than UPS (for typical packages)?
 
UPS is union labor, Fedex are not, which is why they are sometimes
really crap at deliveries using contracted white van guys. I've had
plenty of problems with fedex but they usually sort it in my favor. Not
knocking UPS, they are good but also have a few bad guys. For a washing
machine board I'd use USPS priority. (Use the free boxes). Never lost
one package in 16 years.
 
You seem to be overworking the washing machine thing, for $60 I'd go for
the "tested working" board, if it don't work or blows up when installed
you get your money back through Ebay (no contest there) and you probably
know there is something else wrong that's blowing up the board. Same
thing will happen with your $200 rebuild. Scary stuff.
Danny DiAmico <dannydiamico@yahoo.com>: May 06 02:16AM

On Thu, 05 May 2016 19:22:48 -0400, JC wrote:
 
> you get your money back through Ebay (no contest there) and you probably
> know there is something else wrong that's blowing up the board. Same
> thing will happen with your $200 rebuild. Scary stuff.
 
This may very well be the case.
It's too late now, but, you must agree that I did *ask* first!
 
Your suggestion didn't come up until *after* I made the decision.
However, its' still a good one, as maybe I erred on the wrong side.
 
I won't know if it works if I made the right decision.
But if it doesn't work - that's where we'll see if it matters.
 
I do *understand* your point that I wasted my money out of sheer fear.
But, to my credit, I *did* ask first.
Chuck <chuck@mydeja.net>: May 05 04:41PM -0500

On Thu, 5 May 2016 15:32:24 -0000 (UTC), Max Muller
 
>This article suggests sewing machine oil:
>http://lifehacker.com/5761236/temporarily-fix-dying-laptop-fans-by-lubricating-them
 
>The comments in that article suggest white lithium grease.
I've used Mobil 1 5-30 for years for this purpose.
 
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ohger1s@gmail.com: May 05 10:10AM -0700

On Wednesday, May 4, 2016 at 8:15:26 PM UTC-4, Jeff Liebermann wrote:
 
 
I could use the screws to
> finish my 8060A. However, if you think you're going to eventually fix
> the Model 85, I suggest you keep them. I'll eventually find where I
> misplaced my screws or find replacements.
 
The 85 has a bad p channel jfet sot23 and I've had a problem locating one, so I put the meter aside. But some time before it crapped, the sounder would squawk for no reason so something else was going on with it. I isolated the sounder for the last year I used it. Also, the terminal blocks on these are crap and this one was breaking up, so I retired it.
 
John
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