sci.electronics.repair - 25 new messages in 11 topics - digest

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

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Today's topics:

==============================================================================
TOPIC: PUMA goggle http://www.cntrade09.com
http://groups.google.com/group/sci.electronics.repair/t/23b43944d780bcfc?hl=en
==============================================================================

== 1 of 1 ==
Date: Sun, Sep 26 2010 12:44 am
From: cntrade08

Sunglass:

goggle:

==============================================================================
TOPIC: Sony PSP 3003 plaything
http://groups.google.com/group/sci.electronics.repair/t/576a529ee137b8b7?hl=en
==============================================================================

== 1 of 1 ==
Date: Sun, Sep 26 2010 1:01 am
From: "N_Cook"

Anyone know what a blown one of these tiny sort of TD or LD fuses look like
http://www.llamma.com/PSP/repair/images/PSP_fuse/Ld-Fuse.jpg
http://www.llamma.com/PSP/repair/images/PSP_fuse/Td-Fuse.jpg
a component that size, as far as I can trace, is the only link to the rest
of the mobo and is o/c to ohms and 2V diode test. It is not burnt-pitted as
I thought but is a neat designed pit and otherwise no burnt appearance. Has
a labelled cover blown off , perhaps the fusing element passes through this
pit to the other land. Being black and only x30 scope, difficult to make
out, let alone probe

==============================================================================
TOPIC: SATA-to-USB Adapter
http://groups.google.com/group/sci.electronics.repair/t/1e62af80c95de41c?hl=en
==============================================================================

== 1 of 2 ==
Date: Sun, Sep 26 2010 4:20 am
From: Meat Plow

On Sat, 25 Sep 2010 22:13:09 -0700, isw wrote:

> I have one that works fine with a 500 GB hard drive, but will not work
> at all with a DVD burner I just got. Another SATA-USB adapter runs it
> just fine.
>
> So is the first one "for hard drives only", or is it defective?
>
> Isaac

What do the user instructions say? Did you visit the manufacturer's
website for additional information on the product? Are you trying to
adapt an eSATA to external USB drive or visa versa ?

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

== 2 of 2 ==
Date: Sun, Sep 26 2010 8:22 am
From: AZ Nomad

On Sat, 25 Sep 2010 22:13:09 -0700, isw <isw@witzend.com> wrote:
>I have one that works fine with a 500 GB hard drive, but will not work
>at all with a DVD burner I just got. Another SATA-USB adapter runs it
>just fine.

>So is the first one "for hard drives only", or is it defective?

>Isaac

It's probably a device driver issue. If it has never worked for you than
it is a setup issue, not a repair issue.

Try posting to an approrpiate newsgroup. If there's software involved,
a good place to start would be with a newsgroup for the particular
operating system you use.

Hint: driver advice for linux or mac won't help you if you run windows,
advice for windows version 7 won't help you if you run windows xp,
98, etc.

Also, in the history of computing, believe it or not, there's been
more than one SATA-USB adapter sold. Why do you think knowing
the maker and model wouldn't be useful information?

==============================================================================
TOPIC: TV turns off plugged into surge protector
http://groups.google.com/group/sci.electronics.repair/t/755764111f5ddb2a?hl=en
==============================================================================

== 1 of 1 ==
Date: Sun, Sep 26 2010 6:28 am
From: "William Sommerwerck"

> A power strip protector is no different from any other non-
> protector power strip when 120 volts remain below that 330 volts.

You're right, Michael. This guy has no idea what's he talking about.

It's worth repeating what the fire marshal told me... Cheap power strips
(whether or not they have surge suppression) often have cheap breakers.
These can develop sufficiently high resistance to the point where they
overheat, even when the current draw is less than the maximum specified. He
said they were a relatively common cause of fires.

==============================================================================
TOPIC: Help identifying components
http://groups.google.com/group/sci.electronics.repair/t/0a66446e99cc4d03?hl=en
==============================================================================

== 1 of 6 ==
Date: Sun, Sep 26 2010 8:46 am
From: DaveC

> I may have the answer, but No, I can't help you....

???

== 2 of 6 ==
Date: Sun, Sep 26 2010 10:14 am
From: "Josepi"

hmmmm... Now you are pushing my memory hard!!...LOL

Let's see.

Make a series circuit with the resistor (R) at the top and the component at
the bottom. Feed the whole thing with an AC voltage supply, top to bottom.

You will need a scope with horizontal input as well as the usual vertical
input and a floating ground or full differential input somwehere. (you work
out the logic .. maybe a floating AC voltage supply would be enough)

Hook the vertical input across the resistor and the horizontal input across
the component. Maybe the grounds together in the middle of components and
floating supply are good for that??? Been a few years.

Now your vertical trace on the scope indicates current (IR drop in the
resistor).
The horizontal trace indicates voltage drop across the component.
You will get the single curve of a component tracer on your scope.

***Component curves***
**shorted = vertical line
**open = horizontal line
**resistor same as R = 45 degree line
**capacitor = circle... me thinks round indicates matching impedance with R
at 60Hz??
** inductor = circle same as cap above??
**zener no current at lower voltages = horiz. line; no voltage increase at
higher voltages = vertical line = visible knee at zener voltage - use
calibrated scales for measurement
**avalanche diode = horizonatal line with foldback and shows current
(vertical at higher end)

Try it! So simple it stinks but is very visible clue. Watch your scope
grounding.

"DaveC" <invalid@invalid.net> wrote in message
news:0001HW.C8C40877035B8296B01AD9AF@news.eternal-september.org...
I got the scope, resistor(s). Variac + small transformer = variable AC
supply.

So describe away!

Thanks.

> Even without the "variable" this can work. Use a high enough DC voltage.
>
> There is a method with a scope, resistor and AC supply but it is much
> more
> complex for a novice (assuming)

== 3 of 6 ==
Date: Sun, Sep 26 2010 10:23 am
From: "Tim Williams"

"Rich Grise" <richgrise@example.net> wrote in message
news:pan.2010.09.26.04.01.38.367112@example.net...
>> Do zeners come in both glass & plastic packages?
>
> Not simultaneously. ;-P

What about glass passivated, plastic package diodes? ;o)

Tim

--
Deep Friar: a very philosophical monk.
Website: http://webpages.charter.net/dawill/tmoranwms

== 4 of 6 ==
Date: Sun, Sep 26 2010 12:56 pm
From: "Michael A. Terrell"

DaveC wrote:
>
> > I may have the answer, but No, I can't help you....
>
> ???

|----||----|
| DO NOT |
| FEED THE |
| TROLLS! |
|----||----|
||
||
||
/|\\|/||||//|||/\???\\//\\\\/|?\/\\\\/\/\/\||||\
--
Politicians should only get paid if the budget is balanced, and there is
enough left over to pay them.

== 5 of 6 ==
Date: Sun, Sep 26 2010 4:44 pm
From: "dcaster@krl.org"

On Sep 25, 12:59 am, DaveC <inva...@invalid.net> wrote:
> > What are they in? A little context would help.
>
> The circuit is in a Hakko 472 desolder station. It controls the switching on
> and off of the vacuum pump motor and vacuum solenoid valve.
>
> Thanks.

I would trace out the circuitry. If you have that, then the type of
diode may be obvious. For example if a diode is across a relay coil
to eliminate transcients, then any ordinary diode will work. For a
circuit for a desolder station, I would expect all the diode would be
common diodes, no zeners, no fast switching, no germanium. Just
something like a 1N4004.

Dan

== 6 of 6 ==
Date: Sun, Sep 26 2010 5:23 pm
From: Randy

On Sep 26, 3:56 pm, "Michael A. Terrell" <mike.terr...@earthlink.net>
wrote:
> DaveC wrote:
>
> > > I may have the answer, but No, I can't help you....
>
> > ???
>
> |----||----|
> | DO NOT |
> | FEED THE |
> | TROLLS! |
> |----||----|
> ||
> ||
> ||
> /|\\|/||||//|||/\???\\//\\\\/|?\/\\\\/\/\/\||||\
> --
> Politicians should only get paid if the budget is balanced, and there is
> enough left over to pay them.

Cut it out Michael..
R.

==============================================================================
TOPIC: Free Dating With Kajol
http://groups.google.com/group/sci.electronics.repair/t/bc70cd7781ca5032?hl=en
==============================================================================

== 1 of 1 ==
Date: Sun, Sep 26 2010 9:02 am
From: Hot Hot Hot

Free Dating With Kajol At http://manymorecodes.co.cc

Due to high sex content, i have hidden the videos in an image.
in that website on Right side below search box click on image and
watch videos in all angles.

==============================================================================
TOPIC: OT: Video - I bet she will listen next time!
http://groups.google.com/group/sci.electronics.repair/t/0231af1c6c094716?hl=en
==============================================================================

== 1 of 4 ==
Date: Sun, Sep 26 2010 10:55 am
From: "Tom Biasi"

"RoadRunner" <asdf@aol.com> wrote in message
news:rg2k969aq5d7ud267h5s1fbhdn094oamdu@4ax.com...
> Don't question it, just watch. How one man deals with a misbehaving
> wife...
>
> http://www.craigboyce.com/Videos/WebFinds/TakingBackThePants.shtml

The video has been around the gun groups for years.
Its totally faked.

== 2 of 4 ==
Date: Sun, Sep 26 2010 11:56 am
From: Frank

On 9/26/2010 1:55 PM, Tom Biasi wrote:
>
>
> "RoadRunner" <asdf@aol.com> wrote in message
> news:rg2k969aq5d7ud267h5s1fbhdn094oamdu@4ax.com...
>> Don't question it, just watch. How one man deals with a misbehaving
>> wife...
>>
>> http://www.craigboyce.com/Videos/WebFinds/TakingBackThePants.shtml
>
> The video has been around the gun groups for years.
> Its totally faked.

Doesn't matter. So is most of the stuff on utube or TV.
Funny is all that counts ;)

== 3 of 4 ==
Date: Sun, Sep 26 2010 4:36 pm
From: "Tom Biasi"

"Frank" <frankperiodlogullo@comcast.net> wrote in message
news:i7o51r$7p5$1@news.eternal-september.org...
> On 9/26/2010 1:55 PM, Tom Biasi wrote:
>>
>>
>> "RoadRunner" <asdf@aol.com> wrote in message
>> news:rg2k969aq5d7ud267h5s1fbhdn094oamdu@4ax.com...
>>> Don't question it, just watch. How one man deals with a misbehaving
>>> wife...
>>>
>>> http://www.craigboyce.com/Videos/WebFinds/TakingBackThePants.shtml
>>
>> The video has been around the gun groups for years.
>> Its totally faked.
>
> Doesn't matter. So is most of the stuff on utube or TV.
> Funny is all that counts ;)
OK, I guess I'm an old stick-in-the mud but as an instructor I don't find
horseplay with guns funny.

== 4 of 4 ==
Date: Sun, Sep 26 2010 5:39 pm
From: Frank

On 9/26/2010 7:36 PM, Tom Biasi wrote:
>
>
> "Frank" <frankperiodlogullo@comcast.net> wrote in message
> news:i7o51r$7p5$1@news.eternal-september.org...
>> On 9/26/2010 1:55 PM, Tom Biasi wrote:
>>>
>>>
>>> "RoadRunner" <asdf@aol.com> wrote in message
>>> news:rg2k969aq5d7ud267h5s1fbhdn094oamdu@4ax.com...
>>>> Don't question it, just watch. How one man deals with a misbehaving
>>>> wife...
>>>>
>>>> http://www.craigboyce.com/Videos/WebFinds/TakingBackThePants.shtml
>>>
>>> The video has been around the gun groups for years.
>>> Its totally faked.
>>
>> Doesn't matter. So is most of the stuff on utube or TV.
>> Funny is all that counts ;)
> OK, I guess I'm an old stick-in-the mud but as an instructor I don't
> find horseplay with guns funny.
>
>
Certainly not - I just looked at as entertainment.

==============================================================================
TOPIC: Technics SL-1350 tonearm does not drop vertically.
http://groups.google.com/group/sci.electronics.repair/t/275776b57680ec4f?hl=en
==============================================================================

== 1 of 4 ==
Date: Sun, Sep 26 2010 12:28 pm
From: "David Farber"

This Technics SL-1350 had a misadjusted set down point and needed some
damping fluid. The arm now has a slow and smooth descent but the anti-skate
force is pulling it outward as the arm is slowly lowered. I've cleaned the
arm lifter but the tonearm occasionally still will pull to the right as the
arm drops. Sometimes, it misses the lead in groove and record completely.
Since the customer likes to stack his records for convenience sake, the lift
arm height cannot be lowered too much. The tonearm lift is no longer
available, part number SFPRT13003K. Anyone have a fix for this?

Thanks for your reply.
--
David Farber
Los Osos, CA

== 2 of 4 ==
Date: Sun, Sep 26 2010 2:34 pm
From: "William Sommerwerck"

I'm confused.

While the arm is being lowered, it should be in contact (somewhere, above-
or below-deck) with the lifting mechanism, right? Should there not be
sufficient friction between the arm and the lifter to keep the anti-skating
force from moving the arm?

== 3 of 4 ==
Date: Sun, Sep 26 2010 5:47 pm
From: "David Farber"

"William Sommerwerck" <grizzledgeezer@comcast.net> wrote in message
news:i7oea7$djo$1@news.eternal-september.org...
> I'm confused.
>
> While the arm is being lowered, it should be in contact (somewhere, above-
> or below-deck) with the lifting mechanism, right? Should there not be
> sufficient friction between the arm and the lifter to keep the
> anti-skating
> force from moving the arm?
>
>

Yes, that is the crux of the problem. The rubber portion of the arm lifter
which contacts the tone arm seems to have lost its grip. There isn't enough
frictional force to counteract the anti-skating force.

Thanks for your reply.
--
David Farber
Los Osos, CA

== 4 of 4 ==
Date: Sun, Sep 26 2010 6:00 pm
From: "Arfa Daily"

"David Farber" <farberbear.unspam@aol.com> wrote in message
news:i7opr8$klo$1@news.eternal-september.org...
>
> "William Sommerwerck" <grizzledgeezer@comcast.net> wrote in message
> news:i7oea7$djo$1@news.eternal-september.org...
>> I'm confused.
>>
>> While the arm is being lowered, it should be in contact (somewhere,
>> above-
>> or below-deck) with the lifting mechanism, right? Should there not be
>> sufficient friction between the arm and the lifter to keep the
>> anti-skating
>> force from moving the arm?
>>
>>
>
> Yes, that is the crux of the problem. The rubber portion of the arm lifter
> which contacts the tone arm seems to have lost its grip. There isn't
> enough frictional force to counteract the anti-skating force.
>
> Thanks for your reply.
> --
> David Farber
> Los Osos, CA
>
>

A thin piece of rubber such as from a balloon maybe, superglued to the
underside of the tonearm above the lifter ?? A very slight 'dent' filed into
the lifter perhaps ??

Arfa

==============================================================================
TOPIC: Neead a pair of handle index parts for an HP 833A Spectrum Analyzer
mainframe.
http://groups.google.com/group/sci.electronics.repair/t/330ac96f90300ead?hl=en
==============================================================================

== 1 of 2 ==
Date: Sun, Sep 26 2010 3:06 pm
From: Don Lancaster

On 9/25/2010 9:52 PM, WallyWallWhackr wrote:
> On Sep 25, 4:38 pm, Don Lancaster<d...@tinaja.com> wrote:
>> On 9/25/2010 9:51 AM, WallyWallWhackr wrote:
>>
>>
>>
>>> On Sep 23, 10:14 am, Don Lancaster<d...@tinaja.com> wrote:
>>>> These attach to the carrying handle and let you adjust the position.
>>>> Need both the handle part and the chassis part.
>>
>>>> The handle part is cylindrical and about an inch in diameter.
>>>> The chassis part is a rectangular square with machined rings in it.
>>
>>>> Used condition fine.
>>
>>>> Also need a new lid if the price is reasonable.
>>
>>>> Many thanks,
>>
>>> Ebay has kits like that. Folks that insert equipment into rack
>>> mounts and the like never use those kits and some of them are
>>> smart enough to sell them. You can also buy it from HP as a kit,
>>> but I assumed that you knew that already and posted looking for
>>> a cheaper route. After spending not to many personal hours
>>> looking though, you could have simply bought the HP kit.
>>
>> Thanks for the tip, but this is the pivot for the tilt handle, and is
>> not involved in the rack mount stuff.
>>
>> Also HP has discontinued all parts support for this item.
>> But possibly the same handle pivot is used on something newer.
>>
>> --
>> Many thanks,
>>
>> Don Lancaster voice phone: (928)428-4073
>> Synergetics 3860 West First Street Box 809 Thatcher, AZ 85552
>> rss:http://www.tinaja.com/whtnu.xml email: d...@tinaja.com
>>
>> Please visit my GURU's LAIR web site athttp://www.tinaja.com
>
> Silly. Folks that do the rack installs have the HANDLE KIT as
> surplus.
>
> There are hundreds if not thousands of them out there.

All I need is ONE.
Price and availability?

--
Many thanks,

Don Lancaster voice phone: (928)428-4073
Synergetics 3860 West First Street Box 809 Thatcher, AZ 85552
rss: http://www.tinaja.com/whtnu.xml email: don@tinaja.com

Please visit my GURU's LAIR web site at http://www.tinaja.com

== 2 of 2 ==
Date: Sun, Sep 26 2010 6:11 pm
From: "Michael A. Terrell"

Don Lancaster wrote:
>
> On 9/25/2010 9:52 PM, WallyWallWhackr wrote:
> > On Sep 25, 4:38 pm, Don Lancaster<d...@tinaja.com> wrote:
> >> On 9/25/2010 9:51 AM, WallyWallWhackr wrote:
> >>
> >>
> >>
> >>> On Sep 23, 10:14 am, Don Lancaster<d...@tinaja.com> wrote:
> >>>> These attach to the carrying handle and let you adjust the position.
> >>>> Need both the handle part and the chassis part.
> >>
> >>>> The handle part is cylindrical and about an inch in diameter.
> >>>> The chassis part is a rectangular square with machined rings in it.
> >>
> >>>> Used condition fine.
> >>
> >>>> Also need a new lid if the price is reasonable.
> >>
> >>>> Many thanks,
> >>
> >>> Ebay has kits like that. Folks that insert equipment into rack
> >>> mounts and the like never use those kits and some of them are
> >>> smart enough to sell them. You can also buy it from HP as a kit,
> >>> but I assumed that you knew that already and posted looking for
> >>> a cheaper route. After spending not to many personal hours
> >>> looking though, you could have simply bought the HP kit.
> >>
> >> Thanks for the tip, but this is the pivot for the tilt handle, and is
> >> not involved in the rack mount stuff.
> >>
> >> Also HP has discontinued all parts support for this item.
> >> But possibly the same handle pivot is used on something newer.
> >>
> >> --
> >> Many thanks,
> >>
> >> Don Lancaster voice phone: (928)428-4073
> >> Synergetics 3860 West First Street Box 809 Thatcher, AZ 85552
> >> rss:http://www.tinaja.com/whtnu.xml email: d...@tinaja.com
> >>
> >> Please visit my GURU's LAIR web site athttp://www.tinaja.com
> >
> > Silly. Folks that do the rack installs have the HANDLE KIT as
> > surplus.
> >
> > There are hundreds if not thousands of them out there.
>
> All I need is ONE.
> Price and availability?

|----||----|
| DO NOT |
| FEED THE |
| TROLLS! |
|----||----|
||
||
||
/|\\|/||||//|||/\???\\//\\\\/|?\/\\\\/\/\/\||||\

--
Politicians should only get paid if the budget is balanced, and there is
enough left over to pay them.

==============================================================================
TOPIC: My 1999 Toyota 4Runner digital clock is kaput (any ideas?)
http://groups.google.com/group/sci.electronics.repair/t/3ca13817756091e9?hl=en
==============================================================================

== 1 of 1 ==
Date: Sun, Sep 26 2010 4:59 pm
From: "larry moe 'n curly"

Y Knot wrote:

> Any ideas how to fix the $250 Toyota 4Runner digital clock?

The experts at sci.electronics.repair do. How about ToyotaNation.com?

I'd check solder joints and electrolytic capacitors. Clocks have one
voltage regulator for the logic, and it could be a 5V linear one or a
switching regulator. The display uses either high voltage DC for
fluorescent displays, a low voltage (roughly 15V) AC source for LCDs.
Any switching regulator can have electrolytic capacitors wear out.
Replace them with Japanese ones from Mouser.com, BDent.com, or
DigiKey.com.

==============================================================================
TOPIC: Small Engine Carburetor Rebuild or Replace?
http://groups.google.com/group/sci.electronics.repair/t/a3eed186303139b0?hl=en
==============================================================================

== 1 of 2 ==
Date: Sun, Sep 26 2010 5:13 pm
From: Jon Claude Killy

How do I know to replace a carburetor on a small engine instead of
rebuilding the carburetor?

== 2 of 2 ==
Date: Sun, Sep 26 2010 5:38 pm
From: Jeffrey Angus

On 9/26/2010 7:13 PM, Jon Claude Killy wrote:
> How do I know to replace a carburetor on a small engine instead of
> rebuilding the carburetor?

Rebuilding works 98% of the time.

What to look for to determine if replacement is needed.
1. missing parts.
2. broken parts.

Running swill like Arco gas through it will certainly cause any
soft parts to degrade and need replacement a lot sooner.

Jeff

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