sci.electronics.repair - 23 new messages in 9 topics - digest

sci.electronics.repair
http://groups.google.com/group/sci.electronics.repair?hl=en

sci.electronics.repair@googlegroups.com

Today's topics:

==============================================================================
TOPIC: Computer runs faster because it is soldered.. haha..
http://groups.google.com/group/sci.electronics.repair/t/a74e97b5f167a0e6?hl=en
==============================================================================

== 1 of 4 ==
Date: Sun, Feb 13 2011 11:41 pm
From: Yuki

Hey guys! Check my site http://electronicsimple.blogspot.com/ ..
perhaps you can find good things here about electronics.. Enjoy
browsing! =)

== 2 of 4 ==
Date: Mon, Feb 14 2011 10:29 am
From: Meat Plow

On Mon, 14 Feb 2011 01:44:27 +0000, Arfa Daily wrote:

>>>Just last week, I bought a replacement LCD assembly for a Classic, and
>>>it was £10.20 (say $15) including tax and delivery. I got it from my
>>>usual supplier here in the UK, and it looked as though it was a
>>>factory-original part.
>>
>> Good price. It probably came directly from China from the same factory
>> that supplies the displays to Apple. I get quite a few parts that way
>> through Hong Kong. However, there are some parts which are simply
>> unobtainable new and/or at reasonable prices. Cosmetic parts, custom
>> chips, and wear parts (i.e. power jacks, controls, keyboards,
>> touchpads, hinges, rubber feet, etc) tend to be difficult to find. Most
>> of these I buy from eBay vendors that cannibalize machines and sell the
>> parts. Without used parts, many of the repairs that I'm doing would be
>> either uneconomical or impossible. I could not build the business on
>> purchasing new parts from the original manufacturer.
>>
>> --
>> Jeff Liebermann jeffl@cruzio.com
>
>
> The company I use is
>
> http://www.parts4ipods.com
>
> Not much use to you as a leftpondian, but as you can see, they do a lot
> of Apple parts, including some cosmetics and touch screens.
>
> Arfa

Hey how do I get my 30 GB Video Ipod apart? It has a .5mm streak going
from right to left in the middle of the screen but stops just short of
the left side. But it is in the backlighting because the streak does not
appear in bright light. So it doesn't seem to be the LCD just the
lighting. Does this sound right? I don't want to mess with trying to pry
it apart and bend it all up but I would like to see if there is something
that can be done first without buying a replacement panel.

--
Live Fast, Die Young and Leave a Pretty Corpse

== 3 of 4 ==
Date: Mon, Feb 14 2011 12:02 pm
From: Jeff Liebermann

On Mon, 14 Feb 2011 18:29:17 +0000 (UTC), Meat Plow
<mhywatt@yahoo.com> wrote:

>Hey how do I get my 30 GB Video Ipod apart?

<http://www.ifixit.com/Browse/iPod>

I'm not sure which model you have. How to identify your model:
<http://www.ifixit.com/info/ID-your-iPod>

>It has a .5mm streak going
>from right to left in the middle of the screen but stops just short of
>the left side. But it is in the backlighting because the streak does not
>appear in bright light. So it doesn't seem to be the LCD just the
>lighting. Does this sound right?

No. Backlighting failures usually affect the entire screen, or large
areas of the screen, not single horizontal lines. That's the LCD.
It's too difficult to see the line with a reflected light. My guess
is either a blown LCD display, or a bad connection. It might also be
mechanical damage (broken glass) of some sort as I've never seen a
line go only partially across the display.

> don't want to mess with trying to pry
>it apart and bend it all up but I would like to see if there is something
>that can be done first without buying a replacement panel.

Burnt offerings, human sacrifice, secret incantations, and
exhortations to various deities has worked for the last few thousand
years. Threats of violence has ocassionally convinved various devices
to cooperate and repair themselves. I don't recall if the ISO has
standardized any of these methods yet, so some experimentation on your
part might be needed. If you do succeed by any of these methods, I
would be very interested.

--
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

== 4 of 4 ==
Date: Mon, Feb 14 2011 6:17 pm
From: "Arfa Daily"

"Meat Plow" <mhywatt@yahoo.com> wrote in message
news:pan.2011.02.14.18.28.30@lmao.lol.lol...
> On Mon, 14 Feb 2011 01:44:27 +0000, Arfa Daily wrote:
>
>
>>>>Just last week, I bought a replacement LCD assembly for a Classic, and
>>>>it was £10.20 (say $15) including tax and delivery. I got it from my
>>>>usual supplier here in the UK, and it looked as though it was a
>>>>factory-original part.
>>>
>>> Good price. It probably came directly from China from the same factory
>>> that supplies the displays to Apple. I get quite a few parts that way
>>> through Hong Kong. However, there are some parts which are simply
>>> unobtainable new and/or at reasonable prices. Cosmetic parts, custom
>>> chips, and wear parts (i.e. power jacks, controls, keyboards,
>>> touchpads, hinges, rubber feet, etc) tend to be difficult to find. Most
>>> of these I buy from eBay vendors that cannibalize machines and sell the
>>> parts. Without used parts, many of the repairs that I'm doing would be
>>> either uneconomical or impossible. I could not build the business on
>>> purchasing new parts from the original manufacturer.
>>>
>>> --
>>> Jeff Liebermann jeffl@cruzio.com
>>
>>
>> The company I use is
>>
>> http://www.parts4ipods.com
>>
>> Not much use to you as a leftpondian, but as you can see, they do a lot
>> of Apple parts, including some cosmetics and touch screens.
>>
>> Arfa
>
>
> Hey how do I get my 30 GB Video Ipod apart? It has a .5mm streak going
> from right to left in the middle of the screen but stops just short of
> the left side. But it is in the backlighting because the streak does not
> appear in bright light. So it doesn't seem to be the LCD just the
> lighting. Does this sound right? I don't want to mess with trying to pry
> it apart and bend it all up but I would like to see if there is something
> that can be done first without buying a replacement panel.
>
>
> --
> Live Fast, Die Young and Leave a Pretty Corpse

I agree with Jeff. The problem is most likely the display itself or a
connection to it. They come apart quite easily, once you have got one side
started. there are lots of videos on You Tube. The English on this one is
crap, but the actual video shows it all quite well, except that they don't
show any screws down the sides once you have the case off. There have been
tiny screws in all the ones I've seen, but they are obvious.

http://www.youtube.com/watch?v=UYE9VF-9-kw&feature=related

Trickiest bit I've found is when you come to put it back together, and you
have to get the centre button in the control ring to stay correctly in
place, as you try to get the ring to locate in the case front. Not
ultimately hard exactly, just fiddly, and a bit frustrating the first ten
times that it falls back out ... :-)

Arfa

==============================================================================
TOPIC: EARN 1500 DOLLARS PER DAY - AT YOUR HOME - 100% FREE
http://groups.google.com/group/sci.electronics.repair/t/c827696031b312da?hl=en
==============================================================================

== 1 of 1 ==
Date: Mon, Feb 14 2011 3:51 am
From: success all

http://usaforextradingonline.blogspot.com

==============================================================================
TOPIC: Wotta Waste - Or eco-bollox at its most ignored ... :-)
http://groups.google.com/group/sci.electronics.repair/t/a7a46f9b012ddcb0?hl=en
==============================================================================

== 1 of 8 ==
Date: Mon, Feb 14 2011 8:04 am
From: "Arfa Daily"

Canton domestic sub. Bit of an oddball fault to do with the auto power-on
circuitry. Probably something simple like a surface mount R around an opamp.
Nothing obvious leapt out at me in a sensible time, so request put in for
some service info.

"Nope. Not available. These units repaired by swap-out of the amplifier
board" came back the reply. So the shop ordered one in - presumably after
clearing the cost with the poor old owner ...

Today, it arrived. When they said a 'replacement board', what they actually
meant was a replacement everything, bar the actual driver and its cabinet !
So that's the black satin plated back panel, every connector, the preamp /
control board, the power supply / power amp board, even the heavy duty
torroidal power transformer. All I had to do was connect the driver (that
actually involved a soldering iron !!) and screw the plate to the cabinet.
Nonsense, or what ?

A couple of weeks back, I had a problem with my central heating boiler, so I
called in an acquaintance who is a heating engineer. Whilst he was working
on my problem, I asked him if he replaced many boiler control boards in the
course of his daily work. I was thinking that modern ones probably suffer a
lot of bad (lead-free) joints from relay hammer and general vibration from
pumps and fans and things, and that there might be some fairly easy money to
be made by us both. He said that he replaces loads, so I asked him what he
did with the bad ones. "Throw 'em away" he replied. Better and better, I
thought, so I asked him if he would be interested in getting them repaired.
This was met with a firm "No". I asked him why not, and he said that it
wouldn't be worth his while, because if he fitted a repaired board to a
customer's boiler, and it went wrong again a couple of weeks later, he would
be left out of pocket on the return call, and with a disgruntled customer
who probably wouldn't use him or recommend him again.

No amount of discussion about quality diagnosis and repair and warranty,
would sway him from his position on the matter.

So there we have it. Despite being forced to accept eco-bollox light bulbs,
and windmills all over the countryside, and everything else that has grown
up around the green movement, a significant proportion of any planet saving
that may result from this, is being chucked away by the repair attitudes of
everyone from manufacturers, right down to one-man-band service
organisations. Until such attitudes are revised, what's the point in
bothering ? Considering the amount of electronic consumer goods that are
scrapped from lack of service info and parts, I'm sure that government could
have a much more significant impact on the electronics recycling situation,
by legislating on making parts and service assistance available. But then,
it's not really about saving the planet, is it ... ?

Arfa

== 2 of 8 ==
Date: Mon, Feb 14 2011 8:16 am
From: Jeffrey Angus

On 2/14/2011 10:04 AM, Arfa Daily wrote:
> I'm sure that government could have a much more significant
> impact on the electronics recycling situation, by legislating
> on making parts and service assistance available.

They have, they've made it illegal to throw anything in the trash
with wires attached.

So all the old dead TV sets and such are just dumped in the ally
ways and streets when nobody is looking now.

Jeff

== 3 of 8 ==
Date: Mon, Feb 14 2011 8:32 am
From: "Arfa Daily"

"Jeffrey Angus" <jangus@suddenlink.net> wrote in message
news:4d595555$0$4275$bbae4d71@news.suddenlink.net...
> On 2/14/2011 10:04 AM, Arfa Daily wrote:
>> I'm sure that government could have a much more significant
>> impact on the electronics recycling situation, by legislating
>> on making parts and service assistance available.
>
> They have, they've made it illegal to throw anything in the trash
> with wires attached.
>
> So all the old dead TV sets and such are just dumped in the ally
> ways and streets when nobody is looking now.
>
> Jeff

That still means that they are actually encouraging recycling rather than
repair, though. Although I don't have a problem with the principle of
recycling materials, it never-the-less still requires a (disproportionate ?)
energy input to carry it out. I feel that many people are forced to replace
their goods sooner than they otherwise would, by the fact that they can't
get them repaired. Surely, it would be better for governments to deal with
the problem directly at manufacturer level, by legislating along the lines
of "You wanna sell your goods in our country ? Fine, but you have to make at
least service info available."

I can sympathise with manufacturers' positions on spare parts to some
degree. These days, it would be a logistic nightmare to try to be able to
hold and supply all of the specialist parts used in modern equipment, but so
much of this stuff could be EASILY fixed with standard off-the-shelf
components, if only schematics even, were made available.

Arfa

== 4 of 8 ==
Date: Mon, Feb 14 2011 9:35 am
From: Jeff Liebermann

On Mon, 14 Feb 2011 16:04:18 -0000, "Arfa Daily"
<arfa.daily@ntlworld.com> wrote:

>I asked him why not, and he said that it
>wouldn't be worth his while, because if he fitted a repaired board to a
>customer's boiler, and it went wrong again a couple of weeks later, he would
>be left out of pocket on the return call, and with a disgruntled customer
>who probably wouldn't use him or recommend him again.

It's worse than that. I know several manufacturers that go through
considerable effort to make sure their boards are destroyed and NOT
recycled. The problem is that they lose control of the boards during
the recycling process and that recyclers are the major source of
"repairable" boards. These boards are fished out of the recyling
bins, repaired (or not repaired) and placed back on the market through
various means. When one of these boards fail, the customer goes after
the manufacturer and not the repair person. The manufacturer usually
has to honor the warranty in order to salvage their reputation. The
quantities involved are minor, but the irritations and support load is
sufficiently irritating to inspire manufacturers to destroy or crush
their boards before recycling. Add to that the counterfeit
electronics problem, and little wonder the manufacturers want to
retain a strangle-hold on the product from cradle to grave.

Oddly, some vendors require a "core deposit" which is common in the
automobile parts busines, before they will sell a replacement board.
In the US, repair shops are required to "offer" the old parts to the
customer, which usually means loss of any core deposit. It's fairly
obvious that the core charge is solely to make sure the customer does
not retain the bad board, and later decide to have it repaired.

--
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

== 5 of 8 ==
Date: Mon, Feb 14 2011 9:59 am
From: Grant

On Mon, 14 Feb 2011 16:32:12 -0000, "Arfa Daily" <arfa.daily@ntlworld.com> wrote:

>
>
>"Jeffrey Angus" <jangus@suddenlink.net> wrote in message
>news:4d595555$0$4275$bbae4d71@news.suddenlink.net...
>> On 2/14/2011 10:04 AM, Arfa Daily wrote:
>>> I'm sure that government could have a much more significant
>>> impact on the electronics recycling situation, by legislating
>>> on making parts and service assistance available.
>>
>> They have, they've made it illegal to throw anything in the trash
>> with wires attached.
>>
>> So all the old dead TV sets and such are just dumped in the ally
>> ways and streets when nobody is looking now.
>>
>> Jeff
>
>That still means that they are actually encouraging recycling rather than
>repair, though. Although I don't have a problem with the principle of
>recycling materials, it never-the-less still requires a (disproportionate ?)
>energy input to carry it out. I feel that many people are forced to replace
>their goods sooner than they otherwise would, by the fact that they can't
>get them repaired. Surely, it would be better for governments to deal with
>the problem directly at manufacturer level, by legislating along the lines
>of "You wanna sell your goods in our country ? Fine, but you have to make at
>least service info available."

Some gear seems unrepairable, SD memory socket spring broke in my P&S camera,
sent it in to Canon for warranty repair, they sent me next model camera as
warranty replacement rather than replace the busted memory socket! Maybe
they wanted the cam as QA sample? I think they simply decide what's cheaper,
and labour rates are too high, in relation to the consumer goods prices these
days. No incentive to repair from owner's PoV?. Dead computer monitor, $90
to repair or $130 to replace -- which way most people go these days?

Grant.
>
>I can sympathise with manufacturers' positions on spare parts to some
>degree. These days, it would be a logistic nightmare to try to be able to
>hold and supply all of the specialist parts used in modern equipment, but so
>much of this stuff could be EASILY fixed with standard off-the-shelf
>components, if only schematics even, were made available.
>
>Arfa

== 6 of 8 ==
Date: Mon, Feb 14 2011 10:34 am
From: Meat Plow

On Mon, 14 Feb 2011 16:04:18 +0000, Arfa Daily wrote:

> Canton domestic sub. Bit of an oddball fault to do with the auto
> power-on circuitry. Probably something simple like a surface mount R
> around an opamp. Nothing obvious leapt out at me in a sensible time, so
> request put in for some service info.
>
> "Nope. Not available. These units repaired by swap-out of the amplifier
> board" came back the reply. So the shop ordered one in - presumably
> after clearing the cost with the poor old owner ...
>
> Today, it arrived. When they said a 'replacement board', what they
> actually meant was a replacement everything, bar the actual driver and
> its cabinet ! So that's the black satin plated back panel, every
> connector, the preamp / control board, the power supply / power amp
> board, even the heavy duty torroidal power transformer. All I had to do
> was connect the driver (that actually involved a soldering iron !!) and
> screw the plate to the cabinet. Nonsense, or what ?
>
> A couple of weeks back, I had a problem with my central heating boiler,
> so I called in an acquaintance who is a heating engineer. Whilst he was
> working on my problem, I asked him if he replaced many boiler control
> boards in the course of his daily work. I was thinking that modern ones
> probably suffer a lot of bad (lead-free) joints from relay hammer and
> general vibration from pumps and fans and things, and that there might
> be some fairly easy money to be made by us both. He said that he
> replaces loads, so I asked him what he did with the bad ones. "Throw 'em
> away" he replied. Better and better, I thought, so I asked him if he
> would be interested in getting them repaired. This was met with a firm
> "No". I asked him why not, and he said that it wouldn't be worth his
> while, because if he fitted a repaired board to a customer's boiler, and
> it went wrong again a couple of weeks later, he would be left out of
> pocket on the return call, and with a disgruntled customer who probably
> wouldn't use him or recommend him again.
>
> No amount of discussion about quality diagnosis and repair and warranty,
> would sway him from his position on the matter.
>
> So there we have it. Despite being forced to accept eco-bollox light
> bulbs, and windmills all over the countryside, and everything else that
> has grown up around the green movement, a significant proportion of any
> planet saving that may result from this, is being chucked away by the
> repair attitudes of everyone from manufacturers, right down to
> one-man-band service organisations. Until such attitudes are revised,
> what's the point in bothering ? Considering the amount of electronic
> consumer goods that are scrapped from lack of service info and parts,
> I'm sure that government could have a much more significant impact on
> the electronics recycling situation, by legislating on making parts and
> service assistance available. But then, it's not really about saving the
> planet, is it ... ?
>
> Arfa

And this is really nothing new. I couldn't count how many times I have
spent tracking down parts a service literature in vain. And one bloke who
worked for Nady I actually got fired for sending me schematics for a 201
guitar wireless I wanted to re-crystal.

--
Live Fast, Die Young and Leave a Pretty Corpse

== 7 of 8 ==
Date: Mon, Feb 14 2011 1:50 pm
From: nesesu

On Feb 14, 9:35 am, Jeff Liebermann <je...@cruzio.com> wrote:
> On Mon, 14 Feb 2011 16:04:18 -0000, "Arfa Daily"
>
> <arfa.da...@ntlworld.com> wrote:
> >I asked him why not, and he said that it
> >wouldn't be worth his while, because if he fitted a repaired board to a
> >customer's boiler, and it went wrong again a couple of weeks later, he would
> >be left out of pocket on the return call, and with a disgruntled customer
> >who probably wouldn't use him or recommend him again.
>
> It's worse than that. I know several manufacturers that go through
> considerable effort to make sure their boards are destroyed and NOT
> recycled. The problem is that they lose control of the boards during
> the recycling process and that recyclers are the major source of
> "repairable" boards. These boards are fished out of the recyling
> bins, repaired (or not repaired) and placed back on the market through
> various means. When one of these boards fail, the customer goes after
> the manufacturer and not the repair person. The manufacturer usually
> has to honor the warranty in order to salvage their reputation. The
> quantities involved are minor, but the irritations and support load is
> sufficiently irritating to inspire manufacturers to destroy or crush
> their boards before recycling. Add to that the counterfeit
> electronics problem, and little wonder the manufacturers want to
> retain a strangle-hold on the product from cradle to grave.
>
> Oddly, some vendors require a "core deposit" which is common in the
> automobile parts busines, before they will sell a replacement board.
> In the US, repair shops are required to "offer" the old parts to the
> customer, which usually means loss of any core deposit. It's fairly
> obvious that the core charge is solely to make sure the customer does
> not retain the bad board, and later decide to have it repaired.
>
> --
> Jeff Liebermann je...@cruzio.com
> 150 Felker St #D http://www.LearnByDestroying.com
> Santa Cruz CA 95060http://802.11junk.com
> Skype: JeffLiebermann AE6KS 831-336-2558

On the other hand, the ABS/Traction control computer in my wife's 1996
car started to give intermittant error indications. A replacement was
$250, but would anyone want to rely on an unauthorized repaired board?
I don't even want to consider the liability to the repairer should any
controller repair contribute to an accident [like the ABS or the
boiler controls]. I will not even look further than faulty connections
or power supply issues on any equipment that even hints of safety
issues!

Neil S.

== 8 of 8 ==
Date: Mon, Feb 14 2011 6:25 pm
From: "Arfa Daily"

"Jeff Liebermann" <jeffl@cruzio.com> wrote in message
news:ebpil61824r018ihatu2p8282cr0mkqiai@4ax.com...
> On Mon, 14 Feb 2011 16:04:18 -0000, "Arfa Daily"
> <arfa.daily@ntlworld.com> wrote:
>
>>I asked him why not, and he said that it
>>wouldn't be worth his while, because if he fitted a repaired board to a
>>customer's boiler, and it went wrong again a couple of weeks later, he
>>would
>>be left out of pocket on the return call, and with a disgruntled customer
>>who probably wouldn't use him or recommend him again.
>
> It's worse than that. I know several manufacturers that go through
> considerable effort to make sure their boards are destroyed and NOT
> recycled. The problem is that they lose control of the boards during
> the recycling process and that recyclers are the major source of
> "repairable" boards. These boards are fished out of the recyling
> bins, repaired (or not repaired) and placed back on the market through
> various means. When one of these boards fail, the customer goes after
> the manufacturer and not the repair person. The manufacturer usually
> has to honor the warranty in order to salvage their reputation. The
> quantities involved are minor, but the irritations and support load is
> sufficiently irritating to inspire manufacturers to destroy or crush
> their boards before recycling. Add to that the counterfeit
> electronics problem, and little wonder the manufacturers want to
> retain a strangle-hold on the product from cradle to grave.
>
> Oddly, some vendors require a "core deposit" which is common in the
> automobile parts busines, before they will sell a replacement board.
> In the US, repair shops are required to "offer" the old parts to the
> customer, which usually means loss of any core deposit. It's fairly
> obvious that the core charge is solely to make sure the customer does
> not retain the bad board, and later decide to have it repaired.
>
>
> --
> Jeff Liebermann jeffl@cruzio.com

The situation over here is not quite the same, but there are similarities.
But all of that just underlines the point that no matter what would be truly
beneficial to the green movement - and simple repair with a twopenny
resistor has got to qualify - it really isn't about that, at all. Which is
actually just as most of us in the repair game already know ...

Arfa

==============================================================================
TOPIC: Arcam amp ...
http://groups.google.com/group/sci.electronics.repair/t/7cc228c388c21ebf?hl=en
==============================================================================

== 1 of 2 ==
Date: Mon, Feb 14 2011 8:16 am
From: "Arfa Daily"

Anyone by any chance got schematics for an Arcam Alpha 10 amplifier ?

TIA

Arfa

== 2 of 2 ==
Date: Mon, Feb 14 2011 8:33 am
From: "Arfa Daily"

"Arfa Daily" <arfa.daily@ntlworld.com> wrote in message
news:uzc6p.13691$Ga7.9010@newsfe16.ams2...
> Anyone by any chance got schematics for an Arcam Alpha 10 amplifier ?
>
> TIA
>
> Arfa

Scrub that. Just found a complete service manual :-)

Arfa

==============================================================================
TOPIC: ACTRESS NAKED VIDEOS AND NUDE PICTURES HERE
http://groups.google.com/group/sci.electronics.repair/t/0317fc887febf48d?hl=en
==============================================================================

== 1 of 1 ==
Date: Mon, Feb 14 2011 8:53 am
From: success all

http://www.cinemaulagam.org

==============================================================================
TOPIC: Ryon Gambill owes me money
http://groups.google.com/group/sci.electronics.repair/t/489a2e2f3c568ef0?hl=en
==============================================================================

== 1 of 1 ==
Date: Mon, Feb 14 2011 10:47 am
From: Anne Onime

I sued him and he lost.

He will not pay.

He is a deadbeat debtor.

Signed,

S. Beall, Texas.

==============================================================================
TOPIC: Tandberg 3001 tuner - broken gear
http://groups.google.com/group/sci.electronics.repair/t/41676e8b42f2ec52?hl=en
==============================================================================

== 1 of 2 ==
Date: Mon, Feb 14 2011 1:14 pm
From: Tim Schwartz

Hello all,

I've got a Tandberg 3001 here where the small plastic gear that drives
the tuning pot (opposite end of the shaft from the tuning drum that the
dial cord wraps around) has cracked. If Tandberg were still around, I'd
just order the assembly. In this case I either have to have the part
machined or find a 'basket case' to pull the part from.

The service manual that I have does not include the parts list, so I
can't tell you the Tandberg part number. I'd guess that the 3011 tuner
uses the same part.

Anyone have a parts unit?

Regards,
Tim Schwartz
Bristol Electronics

== 2 of 2 ==
Date: Mon, Feb 14 2011 1:33 pm
From: nesesu

On Feb 14, 1:14 pm, Tim Schwartz <t...@bristolnj.com> wrote:
> Hello all,
>
> I've got a Tandberg 3001 here where the small plastic gear that drives
> the tuning pot (opposite end of the shaft from the tuning drum that the
> dial cord wraps around) has cracked. If Tandberg were still around, I'd
> just order the assembly. In this case I either have to have the part
> machined or find a 'basket case' to pull the part from.
>
> The service manual that I have does not include the parts list, so I
> can't tell you the Tandberg part number. I'd guess that the 3011 tuner
> uses the same part.
>
> Anyone have a parts unit?
>
> Regards,
> Tim Schwartz
> Bristol Electronics

Not a lot of point in finding a 'donor' set since the gear in that one
is likely broken or will break sooner or later. Nylon gears pressed
onto plain shafts are very prone to snapping at one of the roots
simply beacuse there is a constant tension in the plastic, flow
boundries and stress risers due to the gear shape.
I have had good luck finding brass gears that are 'close enough' for
these sorts of applications from other junked mechanisms that have
gear boxes in them. Anything from VCRs, copiers, printers [especally
laser ones], paper shredders and so on are a rich source of gears and
bearings.

Neil S.

==============================================================================
TOPIC: Samsung TV repair question.
http://groups.google.com/group/sci.electronics.repair/t/ef9b7679393102e3?hl=en
==============================================================================

== 1 of 3 ==
Date: Mon, Feb 14 2011 1:47 pm
From: Beezle Bub

I have an analog Samsung TV which I bought in 1998. It is around 32
inches. The problem is the image keeps getting 'squeezed'--the sides
cave in and the image takes on the shape of an hourglass. In the past,
I would have this problem for like 10 minutes but the image would
eventually correct itself. Nowadays, the problem remains as it is.
Anything can be done about this?

Model # is TXJ2766.

== 2 of 3 ==
Date: Mon, Feb 14 2011 2:23 pm
From: Franc Zabkar

On Mon, 14 Feb 2011 13:47:27 -0800 (PST), Beezle Bub
<and-real3@live.com> put finger to keyboard and composed:

>I have an analog Samsung TV which I bought in 1998. It is around 32
>inches. The problem is the image keeps getting 'squeezed'--the sides
>cave in and the image takes on the shape of an hourglass. In the past,
>I would have this problem for like 10 minutes but the image would
>eventually correct itself. Nowadays, the problem remains as it is.
>Anything can be done about this?
>
>Model # is TXJ2766.

Service manual for TXJ2766 and TXJ2754:
http://elektrotanya.com/samsung_txj2754_txj2766.pdf/download.html

Check the East-West / Horizontal Pincushion correction circuit.

- Franc Zabkar
--
Please remove one 'i' from my address when replying by email.

== 3 of 3 ==
Date: Mon, Feb 14 2011 5:20 pm
From: Sylvia Else

On 15/02/2011 9:23 AM, Franc Zabkar wrote:
> On Mon, 14 Feb 2011 13:47:27 -0800 (PST), Beezle Bub
> <and-real3@live.com> put finger to keyboard and composed:
>
>> I have an analog Samsung TV which I bought in 1998. It is around 32
>> inches. The problem is the image keeps getting 'squeezed'--the sides
>> cave in and the image takes on the shape of an hourglass. In the past,
>> I would have this problem for like 10 minutes but the image would
>> eventually correct itself. Nowadays, the problem remains as it is.
>> Anything can be done about this?
>>
>> Model # is TXJ2766.
>
> Service manual for TXJ2766 and TXJ2754:
> http://elektrotanya.com/samsung_txj2754_txj2766.pdf/download.html
>
> Check the East-West / Horizontal Pincushion correction circuit.
>
> - Franc Zabkar

And since the problem used to resolve itself in 10 minutes, presumably
as the components warmed up, dud capacitors would be a good thing to
look for.

Sylvia.

==============================================================================
TOPIC: Samsung HP-T5064 Service Notes
http://groups.google.com/group/sci.electronics.repair/t/9c4ddba4bee063e9?hl=en
==============================================================================

== 1 of 1 ==
Date: Mon, Feb 14 2011 2:28 pm
From: Franc Zabkar

On Wed, 9 Feb 2011 08:16:05 -0800 (PST), n8ball
<natere2ster@gmail.com> put finger to keyboard and composed:

>A friend of mine has had a lighting hit his house now the samsung
>t5064 would turn on....
>
>Anyone have the notes for the this units?

Service Manual for SAMSUNG PDP-HPT5064 4264 F34A-N HD-CALLA-CHASSIS:
http://elektrotanya.com/samsung_pdp-hpt5064_4264_f34a-n_hd-calla-chassis.pdf/download.html

- Franc Zabkar
--
Please remove one 'i' from my address when replying by email.

==============================================================================

You received this message because you are subscribed to the Google Groups "sci.electronics.repair"
group.

To post to this group, visit http://groups.google.com/group/sci.electronics.repair?hl=en

To unsubscribe from this group, send email to sci.electronics.repair+unsubscribe@googlegroups.com

To change the way you get mail from this group, visit:
http://groups.google.com/group/sci.electronics.repair/subscribe?hl=en

To report abuse, send email explaining the problem to abuse@googlegroups.com

==============================================================================
Google Groups: http://groups.google.com/?hl=en

Electronics

sci.electronics.repair - 23 new messages in 9 topics - digest

No Response to "sci.electronics.repair - 23 new messages in 9 topics - digest"

Post a Comment

Blog Roll

Blog Archive