Digest for sci.electronics.repair@googlegroups.com - 14 updates in 8 topics

bruce2bowser@gmail.com: Nov 26 07:15AM -0800

ser GM truck radio swap
Tim R. wrote:
>In fact it's probably the other way around.
 
>My wife put an aftermarket radio in our other car for a trip. It has
>this weird slot my daughter calls a USB.
 
A USB stands for Universal Serial Bus.
And even then, the USB port (outlet or socket) could be that or a micro-USB, both of which you use to connect your mobile phone to most computers, wall chargers, audio or video units, etc... via a USB cable.
(a USB-USB or USB-micro-USB cable includes power and data hard-wired connections into one cable)
This hard-wired concept is being somewhat phased-out by Apple and Samsung in favor of both wireless data communications and wireless charging which presents a solenoid situation that cuts down on the wear-and-tear presented by connectors.
bruce2bowser@gmail.com: Nov 26 07:18AM -0800

Tim R. wrote:
>In fact it's probably the other way around.
 
>My wife put an aftermarket radio in our other car for a trip. It has
>this weird slot my daughter calls a USB.
 
USB stands for Universal Serial Bus.
And even then, the USB port (outlet or socket) could be that, or a micro-USB, both of which you use to connect your mobile phone to most computers, wall chargers, audio or video units, etc... via a USB cable.
(a USB-USB or USB-micro-USB cable includes power and data hard-wired connections into one cable)
This hard-wired concept is being somewhat phased-out by Apple and Samsung in favor of both wireless data communications and wireless charging which presents a solenoid situation that cuts down on the wear-and-tear presented by connectors.
"Darkmind" <darkmind64@hotmail.com>: Nov 26 03:06AM -0600

> Mother Ship here:
 
> http://www.chauvin-arnoux.com/en/produit/oxi6204.html
 
Thank you for your suggestion but I have already asked them for a diagram and they replied that they no longer have them. I also asked the company Manumesure in France who repairs this type of equipment but they do not have it either. I was hoping someone here would have some. I also did a lot of research on the internet but without result. Even the user manual seems to be missing ...
 
 
If anyone here knows a company that repairs these devices, anywhere in the world, I could also try to make a request to them.
 
Thanks in advance for any response.
 
--
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jurb6006@gmail.com: Nov 26 02:51AM -0800

Where are you geographically ? Maybe you can sens it to me, I am pretty good at working without a print
 
Or you can post the problem and we can knock heads together here on the forum. And pictures would help.
"~misfit~" <shaun.at.pukekohe@gmail.com>: Nov 26 09:32PM +1300

Once upon a time on usenet Jeff Liebermann wrote:
 
> Or, I could be crude, and just spot weld one end of a nickel strip to
> the battery, and zig-zag the strip to simulate the button top. With
> luck, it might act as a spring.
 
I used to do that until one part-unfolded as I put a cell into my favourite
flashlight, shorted against part of the top of the flashlight referenced to
negative and and cooked the switch into oblivion. :-/
 
> Sigh... yet another project.
 
I know the feeling.
--
Shaun.
 
"Humans will have advanced a long, long way when religious belief has a cozy
little classification in the DSM*."
David Melville (in r.a.s.f1)
(*Diagnostic and Statistical Manual of Mental Disorders)
bruce2bowser@gmail.com: Nov 25 08:40PM -0800


>I've had that with fridges, and solved it by putting copper wire down
>the drain tube & leaving it in place. It inhibits mould, and is easily
>wiggled to clear any blockage.
 
You can even take out and put back-in the wire to clean it.
sisko125@gmail.com: Nov 25 08:58AM -0800

Hi all
 
I have a home theater subwoofer that the volume is stuck on high and I can't adjust with the knob low or high it's just stuck on high. I have checked the solder around the volume control and resoldered them all and cleaned the control with a contact/lube spray and still nothing. What is wrong with it??? What can I do to check for the problem? Any advice will be welcomed!!!
 
Serge
tabbypurr@gmail.com: Nov 25 04:18PM -0800

> Hi all
 
> I have a home theater subwoofer that the volume is stuck on high and I can't adjust with the knob low or high it's just stuck on high. I have checked the solder around the volume control and resoldered them all and cleaned the control with a contact/lube spray and still nothing. What is wrong with it??? What can I do to check for the problem? Any advice will be welcomed!!!
 
> Serge
 
Sounds like the ground end of the pot has come disconnected. Most likely where it's soldered, or perhaps inside the pot.
 
 
 
NT
Bob Horvath <bhorvath13@comcast.net>: Nov 25 01:54PM -0500


>a friend has a 1947 national shortwave radio. it works, but supposedly not well.
>would it have any value?
 
>thanks
 
 
I just searched on Ebay and there are some listed. It might give you
an idea of going prices.
 
https://www.ebay.com/sch/i.html?_from=R40&_trksid=p2380057.m570.l1313.TR1.TRC0.A0.H0.Xnational+shortwave+radio.TRS0&_nkw=national+shortwave+radio&_sacat=0
Tom Biasi <tombiasi@optonline.net>: Nov 25 02:08PM -0500

On 11/25/2017 1:54 PM, Bob Horvath wrote:
 
> I just searched on Ebay and there are some listed. It might give you
> an idea of going prices.
 
> https://www.ebay.com/sch/i.html?_from=R40&_trksid=p2380057.m570.l1313.TR1.TRC0.A0.H0.Xnational+shortwave+radio.TRS0&_nkw=national+shortwave+radio&_sacat=0
 
Just remember, asking isn't getting.
tabbypurr@gmail.com: Nov 25 04:17PM -0800

> a friend has a 1947 national shortwave radio. it works, but supposedly not well.
> would it have any value?
 
> thanks
 
I expect it would yes.
 
 
NT
bruce2bowser@gmail.com: Nov 25 11:43AM -0800

> > soldering temp requirement fracture the ceramic at laying
 
> I have read about the need to slowly heat the capacitors to keep
> them from fracturing.
 
I don't mean to go further on a tangent and I have no experience with the A+++ related computer hardware construction and repair, but I know fans keep computer hardware cool. But with cold capacitor heat rising to fast, should something like incandescent light bulb first turn-on before cooling fans kick-in in a CPU tower-area to keep hardware temperature more at an exact setting?
tabbypurr@gmail.com: Nov 25 04:16PM -0800


> > I have read about the need to slowly heat the capacitors to keep
> > them from fracturing.
 
> I don't mean to go further on a tangent and I have no experience with the A+++ related computer hardware construction and repair, but I know fans keep computer hardware cool. But with cold capacitor heat rising to fast, should something like incandescent light bulb first turn-on before cooling fans kick-in in a CPU tower-area to keep hardware temperature more at an exact setting?
 
can you put that in english?
tabbypurr@gmail.com: Nov 25 04:14PM -0800

On Wednesday, 22 November 2017 20:46:18 UTC, Stu jaxon wrote:
> > that it is an isolation transformer.
 
> > Which begs the question: Why do you need an isolation transformer?
 
> to protect my equipment, i picked up a new hobby.
 
Your comments indicate that you most likely have several misunderstandings. It's your choice but would probably help you to say a lot more about what you're doing.
 
 
NT
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