Digest for sci.electronics.repair@googlegroups.com - 17 updates in 5 topics

"Michael A. Terrell" <mike.terrell@earthlink.net>: Jul 21 04:51PM -0400

> > 1000 at a time, but I can't find any data to tell me what they are or an
> > equivalent.
 
> I think what your looking at is a MOV..
 
 
You replied to a 17 year old message.
Michael Black <et472@ncf.ca>: Jul 21 04:59PM -0400

"Michael A. Terrell" <mike.terrell@earthlink.net>: Jul 22 11:54AM -0400

Michael Black wrote:
 
> > You replied to a 17 year old message.
 
> I've seen replies to older messages, but in this case, it's only been 7
> years. 17 would have the original post in 1998.
 
 
You're right. I had seen a 16 year old message replied to on another
group a few minutes earlier, and wasn't paying close attention.
 
 
"Michael A. Terrell" <mike.terrell@earthlink.net>: Jul 22 11:33AM -0400

Allodoxaphobia wrote:
> > Jon Elson: And wait till wireless electric transmission
> > becomes reality. Then what will people do?? ;)
 
> Wouldn't it be GREAT if Tesla had been born one century later?
 
 
Bullshit. The power losses involved make it a fool's dream.
"Michael A. Terrell" <mike.terrell@earthlink.net>: Jul 22 11:52AM -0400

Jon Elson wrote:
> concerned about are tiny, compared to the huge "irradiation" you are
> recieving all day, from a bunch of other sources that you may be totally
> unaware of.
 
 
The sun showers the earth with a wide spectrum of RF.
"Michael A. Terrell" <mike.terrell@earthlink.net>: Jul 22 08:41AM -0400

Jeff Liebermann wrote:
 
> Personally, I want a graph of signal strength and SNR over a few days
> period. Whether anyone is willing to pay for such a feature is
> debatable.
 
 
Fluke must have thought so. Their 207 receiver has a strip chart
recorder. Microdyne used one for decades as part of their time &
frequency standard, before replacing it with a GPS derived system for
the in house cal lab, and for their Electrical Engineering department. I
built a 64 output 10 MHz distribution amp to add the production areas to
the system, somewhere around 2000.
N_Cook <diverse@tcp.co.uk>: Jul 21 08:13PM +0100


> Seems to be this model: http://www.asahikeiki.co.jp/en/product/us-622/
 
> I'd really appreciate any advice on how to troubleshoot this. I know microwaves are dangerous. If the magnetron or high voltage capacitor is busted, I'll go buy another one because I don't want to piss around with that stuff. But I'd like to save some money and repair this one if I can.
 
> Thanks!
 
Isolate the fan and drive from a suitable bench supply or variac, if its
not obviously a bearing problem
thekmanrocks@gmail.com: Jul 22 04:18AM -0700

I have a similar circumstance. GE microwave
bought 13 yrs ago. Cuts off less than 5 sec
after pressing Start. Display blacks out
or displays "full"(all elements) then blacks
out.
 
 
After 2-3 more attempts it finally completes
my cooking cycle. I got tired of resetting the
clock, so now it's just blank.
 
 
No odd noises, however.
jurb6006@gmail.com: Jul 21 11:19AM -0700

What do you do about those rubber things ? The ones under the keys on the touch responsive ones. Are they interchangable to some extent ?
 
And where to get them. Looking around it seems like these companies don't want to sell parts. Got a Roland up right now that only has ONE KEY not working. That is a kinda decent one. Also have a Casio with about a half dozen not working. That one is not as good I would assume but that part should not really cost all that much.
"Gareth Magennis" <sound.service@btconnect.com>: Jul 21 07:57PM +0100

wrote in message
news:f88ad735-261a-4819-a75a-9d291caa7596@googlegroups.com...
 
What do you do about those rubber things ? The ones under the keys on the
touch responsive ones. Are they interchangable to some extent ?
 
And where to get them. Looking around it seems like these companies don't
want to sell parts. Got a Roland up right now that only has ONE KEY not
working. That is a kinda decent one. Also have a Casio with about a half
dozen not working. That one is not as good I would assume but that part
should not really cost all that much.
 
 
 
 
By and large they are NOT interchangeable at all. Every manufacturer
pretty much uses a different design.
 
Occasionally you will get keyboards that share the same keyframe - Korg and
Yamaha used to do this years ago with the DX7 and M1 for example. (though
these do not use rubber contacts)
And some more contemporary Nords use the same Fatar keyframe that some
Rolands do, that DO use the rubber contacts.
 
But mostly, these rubber contacts are unique and a bit of a nightmare and
can only be bought from the manufacturer.
 
Don't bother trying to repair them with the various paint kits you might
find online, they are expensive and useless.
 
 
 
Gareth.
N_Cook <diverse@tcp.co.uk>: Jul 21 08:12PM +0100

> What do you do about those rubber things ? The ones under the keys on the touch responsive ones. Are they interchangable to some extent ?
 
> And where to get them. Looking around it seems like these companies don't want to sell parts. Got a Roland up right now that only has ONE KEY not working. That is a kinda decent one. Also have a Casio with about a half dozen not working. That one is not as good I would assume but that part should not really cost all that much.
 
All duff but one suggests an interconnect problem or some non-membrane
problem.
Just one or two duff keys, then a good clean will probably suffice, hair
,bugs , grime etc can easily get under a contact.
Beware of dislodging any key return springs.
Andre Majorel <cheney@halliburton.com>: Jul 21 08:56PM

> Also have a Casio with about a half dozen not working. That
> one is not as good I would assume but that part should not
> really cost all that much.
 
For after-touch ? If there is an answer, it's very likely that
someone on one of those mailing lists has it :
 
http://machines.hyperreal.org/Analogue-Heaven/
Archives :
http://search.retrosynth.com/ah/
http://analogue-heaven.1065350.n5.nabble.com/
 
http://dropmix.xs4all.nl/rick/Emusic/Synth-diy/
Archives :
http://search.retrosynth.com/synth-diy/
http://dropmix.xs4all.nl/pipermail/synth-diy/
 
But be nice and don't post through Nabble...
 
--
André Majorel http://www.teaser.fr/~amajorel/
It is difficult to get a man to understand something, when his
salary depends upon his not understanding it. -- Upton Sinclair
Clifford Heath <no.spam@please.net>: Jul 21 10:57PM +1000

> What do you do about those rubber things ? The ones under the keys on the touch responsive ones. Are they interchangable to some extent ?
 
> And where to get them. Looking around it seems like these companies don't want to sell parts. Got a Roland up right now that only has ONE KEY not working. That is a kinda decent one. Also have a Casio with about a half dozen not working. That one is not as good I would assume but that part should not really cost all that much.
 
My experience (though not recent) is that Roland are good about spare
parts. I wouldn't even both calling Casio however.
jurb6006@gmail.com: Jul 21 07:38PM -0700

>"By and large they are NOT interchangeable at all. Every manufacturer
pretty much uses a different design. "
 
Found one for a slightly different model :
 
https://syntaur.com/Items/4822.html
 
Problem is I need the 13 section one and this is the 12. they are out of stock on the 13. But I was about to cut the original anyway and move the bad one all the way to the end. I could just use any of the good ones for the end. Once back into it I will look and see if this is possible, like they don't have locating bosses or anything that would stop it or require more modification.
 
>"All duff but one suggests an interconnect problem or some non-membrane
problem. "
 
While I agree somewhat, I think that ONE of them has to go first. It probagly depends on how the guy plays. However I do intend to confirm this as the problem before proceeding. I am going to have to figure out a non-destructive way to hit that key using a different pad. In this particulat design that looks doable.
 
>"For after-touch ? If there is an answer, it's very likely that
someone on one of those mailing lists has it : "
 
I have not had alot of luck with that site. Funky search engine for one, well not so much that but how it returns the results. Sorted by date. I didn't see any options other than to exclude dates.
 
>"My experience (though not recent) is that Roland are good about spare
parts. I wouldn't even both calling Casio however. "
 
I couldn't find anything about parts at Roland's site at all, and no phone number either.
 
Ironically, I think the shop might be an ASC or at least authorized dealer for Casio.
 
___
 
What gets me is these things are not made by music companies. It takes the rigth materials and the equipment to handle them. How many times are they going to retool because some manufacturer has a bug up their ass and wants proprietary parts ? they have to make a mold. It ain't a circuit board where you can changee it for the sake of change every 8715 serial numbers like they do on TVs. That does not require retooling or anytihng, just the installation of different jumpers, software and maybe a few parts.
 
This is different. I realize all the brands will be different except what I was just told about a few exceptions, but it seems like within so many years, for the same brand, something like this should be the same.
 
I dunno, I'll get back into it in a few days and figure some more out.
 
Thanks all.
Andre Majorel <cheney@halliburton.com>: Jul 22 06:20AM

> engine for one, well not so much that but how it returns the
> results. Sorted by date. I didn't see any options other than
> to exclude dates.
 
In my experience, it's hard work to find anything in the
retrosynth.com archives, even when you already know it's there.
Don't focus on the archives, subscribe to the lists and ask.
 
--
André Majorel http://www.teaser.fr/~amajorel/
It is difficult to get a man to understand something, when his
salary depends upon his not understanding it. -- Upton Sinclair
jurb6006@gmail.com: Jul 21 11:37PM -0700

>"In my experience, it's hard work to find anything in the
>retrosynth.com archives, even when you already know it's there.
>Don't focus on the archives, subscribe to the lists and ask. "
 
Yet another subscription. Ugh. I might do it anyway. Do I need to make a new email for it ? (because of spam)
 
Although I do have an idea. Ever use the search function in IE ? Could use very general search terms and let it give ne a kagillion answers and then use the browser's search function to search through that.
 
And if I do end up joining, what did you mean not to post through "nibbles" or whatever ? Do they frown on that like some here do on gmailers ?
 
I might do that, but I think for $11 it might be worth the risk to just get the one I found. On a full size keyboard, the keys are always the same space apart. They would have had to go to great lengths to make them ALL not fit each other.
 
Of course this will not be the last time on things like this. So I do need to expaand my rsources. thanks for the link whether I ever really join or not. I might just learn how to search it. If I do I'll let you know.
 
Why do blogs do that ? Sort by date but no tree. And no options. Well maybe that is all they could do. I dunno. It is more than I could do, I am a NON-programmin' mofo. And, if they accept money who knows what you can do then.
mroberds@att.net: Jul 22 06:57AM

> I couldn't find anything about parts at Roland's site at all, and no
> phone number either.
 
http://www.rolandus.com/support/support_faq/ says...
 
---
Q. Can I order parts from Roland directly?
 
A. Yes! Some replacement parts and accessories are available on the
Roland Online Store. If you don't see the part you need on the site,
Roland has a huge inventory of parts that can be ordered directly by
submitting a parts order request, or calling our Parts and Service
department at 323-890-3771, Monday through Friday, 8:00am to 4:00pm
Pacific Time.
---
 
The store is at http://shop.rolandus.com/ and the order request is at
http://www.rolandus.com/support/parts_order_request/ , but the order
request seems to require that you create an account (email address and
password) first.
 
Standard disclaimers apply: I don't get money or other consideration
from any companies mentioned.
 
Matt Roberds
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