Digest for sci.electronics.repair@googlegroups.com - 14 updates in 3 topics

bitrex <bitrex@de.lete.earthlink.net>: May 26 12:49PM -0400

> Hillary Clinton last year?
> That phrase "basketful of
> deplorables" ring any bells?
 
Nobody who was offended by the statement would've voted for her in a
million years anyway, and she was too kind, regardless.
 
The whole world is tired of bending over backwards to appease glomping
redneck Americans who've done nothing but insult, bully, and threaten
anyone who isn't them for decades.
tabbypurr@gmail.com: May 26 02:51PM -0700

On Friday, 26 May 2017 01:10:01 UTC+1, amdx wrote:
 
 
> She has about 40 videos of her travels.
 
> If you find her story inspiring send her some cash.
 
> Mikek
 
why??
 
 
NT
ohger1s@gmail.com: May 26 03:36PM -0700

> up all the way. Which is why so
> many of those hit the dump
> prematurely.
 
 
The moral is correct will be lost on just about everyone. The TV's default is 100% back light right out of the box and will revert back to 100% if you sneeze loudly anywhere near them. When I first started doing LED array repairs I'd demo the proper way to adjust back light, show them where I set it and why, and I'd still see some come back a year later with LED failures, and the back light setting defaulted to 100% once again. Try this: put your back light to 50% in custom, then move to vivid, sports, theater etc. Return to custom and you'll find all your settings where you left them, *except* the back light which is now magically defaulted to 100%. It seems the engineers think people like the light pollution that bleeds through dark scenes and destroys the black level..
 
It's even worse if the customer chooses "demo" instead of "home" when they first perform the out-of-box procedure. The "demo" mode cranks the back light another 20% over the already too high setting. If someone buys a demo off the wall at Walmart, the TV has maybe weeks or months left to live.
 
So, every LED repair I do involves modifying the drive to the array, usually I shoot for 40% reduction in wattage. Most mods involve changing the source resistors on the drive mosfets to raise the feedback dc to the controller IC. Some top of the spectrum brilliance is lost but the black levels improve dramatically. It's a trade off that also virtually guarantees no returns to me.
 
Only one person came back and questioned the brightness of the TV (a Samsung)that I repaired. I explained what I did and why, and expressed surprise that he picked up on the picture and he was the first to do so. He told me he had two of the exact same model in adjoining rooms, and saw the A-B every day. I told him I could certainly undo the mod and explained the trade off in life, and he said he'd keep it that way.
jurb6006@gmail.com: May 26 04:51PM -0700

>"The whole world is tired of bending over backwards to appease glomping
redneck Americans who've done nothing but insult, bully, and threaten
anyone who isn't them for decades. "
 
Where were the cry ins when Obama got elected ?
 
Where were the blocked highways when Obama got elected ?
 
Who was kidnapped and forced to drink toilet water when Obama got elected ?
 
Who disrupted public speaking engagements when Obama got elected ?
 
Don't try to sell that shit to a grown Man. Liberals might buy it. You know why most conservatives are older ? Because they learn in life that liberalism does not work.
thekmanrocks@gmail.com: May 26 04:56PM -0700

ohg...@gmail.com wrote: "Try this: put your back light to 50% in custom, then move to vivid, sports, theater etc. Return to custom and you'll
find all your settings where you left them, *except* the back light which is now magically defaulted to 100%"
 
 
ERRRR! Not on my 2015 Samsung
smart LED! When I cycle through
all those modes back to custom,
or Movie as I use(least background
processing of picture), the backlight
is right where I left it.
 
 
Guess it depends on year, model,
and even size of Samsung.
 
 
So that customer in your last example
agreed not to go back to torch mode?
Good for him! There is hope afterall.
Foxs Mercantile <jdangus@att.net>: May 26 07:08PM -0500

On 5/26/2017 6:51 PM, jurb6006@gmail.com wrote:
 
[ The usual stupid shit we've come to expect from him. ]
 
The Oath Keepers who were convinced a constitutional law
professor didn't know anything about the constitution
and were ready to mutiny to defend their view of said
constitution.
 
Mitch McConnell "We are going to do everything in our
power to make him a one term President."
 
Eight years of having to listen to the entire right
refer to the President of the United States as "That
nigger in the White House."
 
The whole "Birther" thing.
 
Alex Jones. Rush Limbaugh. Sean Hannity. Bill O'Reilly.
'Nuff said.
 
Fuck you, ya ignorant redneck snowflake.
 
 
 
 
--
Jeff-1.0
wa6fwi
http://www.foxsmercantile.com
 
---
This email has been checked for viruses by AVG.
http://www.avg.com
bitrex <bitrex@de.lete.earthlink.net>: May 26 08:18PM -0400


> Where were the blocked highways when Obama got elected ?
 
> Who was kidnapped and forced to drink toilet water when Obama got elected ?
 
> Who disrupted public speaking engagements when Obama got elected ?
 
I think most conservatives looked at Obama, looked at Romney, shrugged,
and figured they'd be better off anyway.
 
Then called him a Kenyan Muslim for 8 years.
 
The reason people were srs upset over Trump in a way that was different
than Obama is Trump made it a point of his campaign that his presidency
would be dedicated to exacting mass revenge on the most vulnerable
people in society on behalf of the (imagined) slights his base has
"suffered" at their hands.
 
Should they not have taken him seriously? When someone says directly "I
am going to fuck you" I guess they should just relax and see how things go.
 
I'm sure conservatives thought Obama was going to fuck them, too.
Problem is that the definition conservatives have of being "fucked" is
if the government doesn't kiss their ass and do exactly what they want
100% of the time, particularly on matters of religion, taxes, and not
expelling every non-white person in the country.
 
> Don't try to sell that shit to a grown Man. Liberals might buy it. You know why most conservatives are older ? Because they learn in life that liberalism does not work.
 
I think it comes mostly from feeling bitter about girls not liking them
very much when they were younger.
bitrex <bitrex@de.lete.earthlink.net>: May 26 08:19PM -0400

On 05/26/2017 08:08 PM, Foxs Mercantile wrote:
 
> Alex Jones. Rush Limbaugh. Sean Hannity. Bill O'Reilly.
> 'Nuff said.
 
> Fuck you, ya ignorant redneck snowflake.
 
The conservative definition of being "oppressed" is "When I don't get
exactly what I want 100% of the time."
amdx <nojunk@knology.net>: May 26 07:23PM -0500


>> Mikek
 
> why??
 
> NT
 
Because you found her story inspiring.
Mikek
tabbypurr@gmail.com: May 27 07:24AM -0700

On Saturday, 27 May 2017 01:24:03 UTC+1, amdx wrote:
 
> > why??
 
> Because you found her story inspiring.
> Mikek
 
I didn't especially. It's good she's thinking, but that's all. It certainly doesn't warrant any generosity. And I'm sure she has quite enough of her own. When I hand money out it's where it's going to do something truly useful.
 
 
NT
ohger1s@gmail.com: May 27 09:32AM -0700


> So that customer in your last example
> agreed not to go back to torch mode?
> Good for him! There is hope afterall.
 
True story: I was sitting at a restaurant with a friend who has a Sony LCD 50" that I "calibrated" (eyeballed) for him. There were several TVs running and the one near us had a baseball game on. The TV was a Sharp Aquos 60" that had a picture so cartoonishly garish that it was truly offensive to the eye. Not only were the LEDs (apparently) cranked all the way, it also must have had every "enhancement" in the picture menu checked off.
 
So my friend, impressed by what he was watching on the Sharp(!), asked if I could get his Sony to look like this Sharp. I told him in my best deadpan that even if I screwed with every adjustment, I couldn't possibly get the Sony to look that bad.
 
His look of complete confusion led me to ask him if he ever saw grass that color (a bright fluorescent green). I asked him if he ever saw a black shirt have a blue underglow to it. I explained that his Sony was adjusted to give as close a representation as a view through a window, not change the content. He finally saw what I was talking about. I didn't bother explaining the artificial black level "enhancements" this TV had, as that's best done by an A-B demo.
 
But go to any store that has a hundred TVs running. The one cranked to stupidity is the one most people will think has the best picture. Kind of like the old "sizzle and boom" EQ settings people like to adjust their stereos for.
"(PeteCresswell)" <x@y.Invalid>: May 26 08:44PM -0400

I have five of these things:
https://www.amazon.com/Duracell-Durabeam-Tactical-High-Intensity-Flashlight/product-reviews/B00NZTE97S
 
Three of them seem tb OK, but two drain the batteries: 2-3 months on the
shelf and the batteries are dead.
 
If it were all 5, I could buy the allegations of a flawed design.
 
But only 2? I'm thinking some sort of quality control issue.
 
Does anybody know enough about LED lights in general to ballpark the
problem? Not knowing anything, I tend to think it's the screw-on
switch/back of the light.
--
Pete Cresswell
Jeff Liebermann <jeffl@cruzio.com>: May 26 06:33PM -0700

On Fri, 26 May 2017 20:44:23 -0400, "(PeteCresswell)" <x@y.Invalid>
wrote:
 
>I have five of these things:
>https://www.amazon.com/Duracell-Durabeam-Tactical-High-Intensity-Flashlight/product-reviews/B00NZTE97S
 
I see that you've been shopping at Costco:
<https://www.amazon.com/Duracell-Durabeam-Tactical-High-Intensity-Flashlight/dp/B00NZTE97S>
Junk but cheap. There's no reason you should be using alkaline
batteries for high power lighting when LiIon is so much better.
 
Hmmm.... 108 positive reviews and 255 critical reviews. That should
be a clue.
 
>shelf and the batteries are dead.
>If it were all 5, I could buy the allegations of a flawed design.
>But only 2? I'm thinking some sort of quality control issue.
 
Yep, that's a good possibility. Did you try to measure the current
drain when the flashlight was off? Just unscrew the battery cap and
attach a DVM ammeter with clipleads. My guess is you'll see a few
milliamps drain when off.
 
>Does anybody know enough about LED lights in general to ballpark the
>problem? Not knowing anything, I tend to think it's the screw-on
>switch/back of the light.
 
That's possible. Inside the tail switch is the on/off, dimmer, and
flasher electronics. Here's a teardown of a similar model Duracell
1300 flashlight. I don't think repair is an option because it seems
impossible to disassemble without breaking something:
<https://www.youtube.com/watch?v=cpERkuuFciw>
Start at 6:00 for the tail switch.
 
 
--
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
tabbypurr@gmail.com: May 26 02:55PM -0700

On Friday, 26 May 2017 08:28:46 UTC+1, Look165 wrote:
 
> > RCA-RCA plugs ?
 
> > Male AND Female
 
> Choose some gold plated ones.
 
totally pointless, unless they're for use in a damp environment.
 
 
NT
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