sci.electronics.repair@googlegroups.com

Today's topics:

* ATX power supply fan noisy. - 4 messages, 4 authors
http://groups.google.com/group/sci.electronics.repair/t/c9cc85470d364e01?hl=en
* Sony ICF-SW7600 portable radio -- all static - 1 messages, 1 author
http://groups.google.com/group/sci.electronics.repair/t/edf64e4c9f40262d?hl=en
* Sony KV-2784R horiz problem - 1 messages, 1 author
http://groups.google.com/group/sci.electronics.repair/t/cf85a32f811047d5?hl=en
* paypal basketball shoes (paypal payment) ( (http://www.brandtrade10.com ) ) -
1 messages, 1 author
http://groups.google.com/group/sci.electronics.repair/t/b94b83258cb252ad?hl=en
* Spam in this group! - 1 messages, 1 author
http://groups.google.com/group/sci.electronics.repair/t/ed1870498aa982df?hl=en
* PCB Designing software - 1 messages, 1 author
http://groups.google.com/group/sci.electronics.repair/t/0483d5fdfb5c9118?hl=en
* Googi hoody made in china (http://www.brandtrade10.com ) - 1 messages, 1
author
http://groups.google.com/group/sci.electronics.repair/t/4760ede914e17135?hl=en

==============================================================================
TOPIC: ATX power supply fan noisy.
http://groups.google.com/group/sci.electronics.repair/t/c9cc85470d364e01?hl=en
==============================================================================

== 1 of 4 ==
Date: Wed, Apr 28 2010 6:38 pm
From: "Arfa Daily"

"David Farber" <farberbear.unspam@aol.com> wrote in message
news:4bd882a9$0$7706$bd467cd0@news.dslextreme.com...
> William Sommerwerck wrote:
>> Is there a Fry's near you? It has a variety of fans, in various
>> sizes. You can probably find a close or exact match.
>
> Yes, there are Fry's in my neighborhood. I will check it out.
>
> Thanks for your reply.
> --
> David Farber
> David Farber's Service Center
> L.A., CA
>

If you want long and quiet service, make sure that you get one with roller
bearings, not the cheapo sleeve bearings.

Arfa

== 2 of 4 ==
Date: Wed, Apr 28 2010 7:09 pm
From: Robert Macy

On Apr 28, 10:53 am, "David Farber" <farberbear.uns...@aol.com> wrote:
> I would like to replace this two-wire, 80mm square,  power supply fan. The
> power supply is used in an AudioReQuest music server and is powered on
> continuously. The part number is, NMB-MAT 7 followed by a model number of,
> 3110GL-B4W-B54. 12V DC, 0.30A. I've found a few places online that have them
> listed but when I call they, don't have them in stock or the price is
> prohibitively expensive. Is there some generic fan that will replace this
> and not cost more than the power supply itself?
>
> Thanks for your reply.
> --
> David Farber
> David Farber's Service Center
> L.A., CA

If you caught it in time, you can try relubing the bearins which will
get you by for a while.

Remove from PC and soak in 30 weight oil, clean up, put back in

I got another 6 months out of mine

== 3 of 4 ==
Date: Wed, Apr 28 2010 9:38 pm
From: UCLAN

AZ Nomad wrote:

>>>I would like to replace this two-wire, 80mm square, power supply fan. The
>>>power supply is used in an AudioReQuest music server and is powered on
>>>continuously. The part number is, NMB-MAT 7 followed by a model number of,
>>>3110GL-B4W-B54. 12V DC, 0.30A. I've found a few places online that have them
>>>listed but when I call they, don't have them in stock or the price is
>>>prohibitively expensive. Is there some generic fan that will replace this
>>>and not cost more than the power supply itself?
>
>>Any 2-wire, 80mm, 12VDC, 0.30A (approx) will do. Got a Radio Shack nearby?
>>http://www.radioshack.com/product/index.jsp?productId=2102826 will do.
>
> Sure, if you're to use cable ties and/or duct tape to mount it and assuming
> the replacement isn't thicker than the original.
>
> Otherwise, it's good idea to check the thickness and mounting method.

Well, that particular model is no longer made, but the 3110 series were
1" (0.98") fans with a standard mounting hole pattern. The same hardware
that was used to mount his old fan would work on the RS model.

== 4 of 4 ==
Date: Thurs, Apr 29 2010 2:03 am
From: Andy <1@2.3>

On Wed, 28 Apr 2010 10:53:43 -0700, "David Farber"
<farberbear.unspam@aol.com> wrote:

>I would like to replace this two-wire, 80mm square, power supply fan. The
>power supply is used in an AudioReQuest music server and is powered on
>continuously. The part number is, NMB-MAT 7 followed by a model number of,
>3110GL-B4W-B54. 12V DC, 0.30A. I've found a few places online that have them
>listed but when I call they, don't have them in stock or the price is
>prohibitively expensive. Is there some generic fan that will replace this
>and not cost more than the power supply itself?
>
>Thanks for your reply.
COOLER MASTER SAF-B82-E1 80mm Case Fan
http://www.newegg.com/Product/Product.aspx?Item=N82E16811999069

==============================================================================
TOPIC: Sony ICF-SW7600 portable radio -- all static
http://groups.google.com/group/sci.electronics.repair/t/edf64e4c9f40262d?hl=en
==============================================================================

== 1 of 1 ==
Date: Wed, Apr 28 2010 6:52 pm
From: RJO

Thanks very much for these detailed insights. Perhaps if I get
adventurous (I'm not an electronics person) I'll open the case and
poke around with a toothpick to see if it changes anything. It may
well be from my amateur position that this will turn out to be more
expensive to repair than would be worth it. It has been a great radio
though, and if anyone gets the chance to acquire one in good condition
they should take it. If the toothpick treatment doesn't work maybe
someone will want it for parts, since 90% of it is still in good
shape.

Bob

On Apr 23, 10:40 pm, nesesu <neil_sutcli...@telus.net> wrote:

> From your description, it could be a failure of the solder. Sony has
> been notorious for solder problems depending on the factory and
> product as well as era it was made. If you can open the set and
> operate it, then you could gently probe the components with a thin
> insulated probe to see if a bit of pressure in an area restores
> operation. One problem doing this is that if the defective joint is
> actually moved, it can restore operation for hours, days or months
> before it re-appears, If prodding does restore operation, then it is
> often effective to simply resolder every joint that looks even
> slightly suspect with a suitable small iron and top quality rosin
> solder. If the radio is not RoHS compliant, then use tin-lead 63-37
> solder.
> If prodding around has no effect, the problem might be a defective
> semi-conductor. You might also consider replacing all the electrolytic
> caps since they are prone to going high ESR with age, again depending
> on the date and make.
>
> Neil S.

==============================================================================
TOPIC: Sony KV-2784R horiz problem
http://groups.google.com/group/sci.electronics.repair/t/cf85a32f811047d5?hl=en
==============================================================================

== 1 of 1 ==
Date: Wed, Apr 28 2010 6:57 pm
From: bill@love.ranch

On Wed, 28 Apr 2010 15:44:54 -0700 (PDT), klem kedidelhopper
<captainvideo462009@gmail.com> wrote:

>On Apr 28, 6:34 pm, b...@love.ranch wrote:
>> Thx for the replies..
>>
>> I pulled the chassis to bring it home - the set is at my other house
>> and I did not have any tools there.
>>
>> Therefore I have not replaced the fuse yet as I have nothing to
>> connect it to.
>>
>> I was thingking about a low voltage issue because of the remote not
>> working, I just don't know where that fuse is in the ckt and something
>> is getting volts as it tries to start. Since it was near the horiz
>> section I made an assumption. could be wrong.
>> Don't know if the whistle I hear is the horiz freq or the switching
>> supply.
>>
>> tipsnews at nc.rr.com
>>
>> thanks David.
>>
>> On Wed, 28 Apr 2010 10:29:58 -0700, "David Farber"
>>
>>
>>
>>
>>
>> <farberbear.uns...@aol.com> wrote:
>> >b...@love.ranch wrote:
>> >> Sony KV-2784R died - horiz collapse - fuse F501 blown - pressing power
>> >> button causes TV to try to start then stops - very soft high freq buzz
>> >> is heard. Remote control will not start it. HOT and all diodes in area
>> >> test OK with ohmmeter. Fuse is somewhat blackened at end where it
>> >> seperated, so it wasn't a slight overload. I do not have schematics.
>> >> Is there any history of common component failures here.Just for ref, I
>> >> am very technical and had a repair shop in the 80's - this was built
>> >> 11/86 - just after I closed the shop. So speak to me at that level,
>> >> thx.
>>
>> >If you post your e-mail address, I can help you with the schematic.
>
>I was thinking that is was the AC line fuse that was blackened.
>however from what you said it doesn't sound like it. I don't know what
>other fuse you could be referring to other than a small chemical fuse
>on a 27 inch set though. Lenny.

the AC comes in on the right, passes thru some rectifiers and large
caps etc. There is a small metal box on the left which I believe has a
switching PS in it - haven't opened it yet.
The fuse is about in the middle on the back edge - a mini fuse - just
about where the horiz section starts - the HOT is on the left side
near the box.
I don't see another fuse and none near the ac line.

==============================================================================
TOPIC: paypal basketball shoes (paypal payment) ( (http://www.brandtrade10.com
) )
http://groups.google.com/group/sci.electronics.repair/t/b94b83258cb252ad?hl=en
==============================================================================

== 1 of 1 ==
Date: Wed, Apr 28 2010 7:57 pm
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==============================================================================
TOPIC: Spam in this group!
http://groups.google.com/group/sci.electronics.repair/t/ed1870498aa982df?hl=en
==============================================================================

== 1 of 1 ==
Date: Wed, Apr 28 2010 11:12 pm
From: David Nebenzahl

On 4/28/2010 8:29 AM William R. Walsh spake thus:

> [some unattributed poster wrote:]
>
>> I don't think they are so much interested in selling crap as getting
>> people to go to their websites so that they can install viruses,
>> trojans, keyloggers etc on one's computer.
>
> I hadn't thought of that. Even so, I'd really be surprised if the
> regulars in this newsgroup would engage in such risky behavior.
>
> I've never been to any of the spamvertised sites and I never intend to
> go there.

None of what you've just said makes the slightest difference. You're
trying to attribute spammers' behavior to some kind of logic, which is
completely undeserved.

Methinks their strategy is usually (always?) some variant of "just throw
a bunch of shit at the wall and see what sticks". Posting spam here and
elsewhere costs them pretty much nothing; why *shouldn't* they do it?
(From their POV, of course, not mine.) It's not as if they're doing any
kind of sophisticated econometric analysis to see how they should
allocate their marketing resources ...

--
The fashion in killing has an insouciant, flirty style this spring,
with the flaunting of well-defined muscle, wrapped in flags.

- Comment from an article on Antiwar.com (http://antiwar.com)

==============================================================================
TOPIC: PCB Designing software
http://groups.google.com/group/sci.electronics.repair/t/0483d5fdfb5c9118?hl=en
==============================================================================

== 1 of 1 ==
Date: Thurs, Apr 29 2010 1:27 am
From: "Dave Plowman (News)"

In article
<37e25e9d-6ef6-4b06-bc9d-95b84212ad92@d39g2000yqa.googlegroups.com>,
fynnashba@yahoo.com <fynnashba@yahoo.com> wrote:
> Please can anyone show me an easy- to- use PCB software that can
> automaticaly prepare a circuit board after drawing the schematic
> diagram? Or one that you just mount the components to get PCB.

That's missing out the best part of designing your own. ;-)

--
*Everyone has a photographic memory. Some don't have film *

Dave Plowman dave@davenoise.co.uk London SW
To e-mail, change noise into sound.

==============================================================================
TOPIC: Googi hoody made in china (http://www.brandtrade10.com )
http://groups.google.com/group/sci.electronics.repair/t/4760ede914e17135?hl=en
==============================================================================

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