Digest for sci.electronics.repair@googlegroups.com - 11 updates in 4 topics

Tim R <timothy42bach@gmail.com>: Aug 28 05:32AM -0700

On Friday, August 27, 2021 at 10:04:07 AM UTC-4, Peter W. wrote:
 
> Why go with a kluge when the real thing (and all the associated reliability thereto) is readily available?
 
> Peter Wieck
> Melrose Park, PA
How far would that read?
 
Power to my shed is underground, and I need to do some digging to fix some drainage. it would really help to know exactly where the 220 is routed. I suspect it's in the 6 to 8 inch deep range, given the slope, hopefully a little deeper some places. .
"Peter W." <peterwieck33@gmail.com>: Aug 28 07:45AM -0700

> How far would that read?
 
> Power to my shed is underground, and I need to do some digging to fix some drainage. it would really help to know exactly where the 220 is routed. I suspect it's in the 6 to 8 inch deep range, given the slope, hopefully a little deeper some places. .
 
That is a low-voltage device, not for power lines. Underground cable tracers are very different animals, and substantially more costly. if all you need to do is 6-8" or so, borrow a decent metal detector and trace that way. You will be within inches - dig out that area by hand. In any case, do call your local One-Call service, it is free and often you have no idea of what may be down there. And they DO have the costly devices.
 
Peter Wieck
Melrose Park, PA
Buddy <Buddy@Buddy.com>: Aug 28 08:09AM -0700

https://www.harborfreight.com/cable-tracker-94181.html?_br_psugg_q=wire+tracer
 
$25 US
 
Works well tracing house wiring.
Just remember to turn off ALL circuit breakers in the mains panel.
Jeff Liebermann <jeffl@cruzio.com>: Aug 28 08:15AM -0700

On Sat, 28 Aug 2021 05:32:12 -0700 (PDT), Tim R
 
>Power to my shed is underground, and I need to do some digging to fix some drainage. it would really help to know exactly where the 220 is routed. I suspect it's in the 6 to 8 inch deep range, given the slope, hopefully a little deeper some places. .
 
The minimum depth of buried power cable varies from 6 inches to
perhaps 24 inches. This might help:
<https://www.hunker.com/12271976/depth-requirements-for-buried-electrical-cable>
If the power cables are inside a steel pipe, none of the RF or
induction methods of wire location will work. However, a common metal
detector will work quite nicely at detecting the pipe.
 
Maybe call 811 (in the USA)?
<https://call811.com>
 
Maybe hire an underground utility location service?
<https://www.google.com/search?q=underground+utility+location+services>
 
--
Jeff Liebermann jeffl@cruzio.com
PO Box 272 http://www.LearnByDestroying.com
Ben Lomond CA 95005-0272
Skype: JeffLiebermann AE6KS 831-336-2558
Ralph Mowery <rmowery42@charter.net>: Aug 28 12:05PM -0400

In article <s9kkig1ss05gtppneh44ckg3jqo6leni93@4ax.com>,
jeffl@cruzio.com says...
 
> Maybe call 811 (in the USA)?
> <https://call811.com>
 
Around here you can go to miss utility on the web or call 811. They
only do the commercial power, phone, cable and gas. If you have your
own wire from the house to an outbuilding or well they will not do it.
 
It is a free service. I have used them twice. Once when I had some
stumps ground up that had roots that extended out about 10 feet from the
tree. Good thing I did as the underground power cable was under a small
tree stump so I told the grinder man to only go low enough the lawn
mower would not hit the stump. A year later when I had a garage bulit
and the foundation needed to be dug. The man only did the power line
the 2nd time. They were not going to come out when I filled out the web
page, but I called them and told them I knew the power line was probably
in the way. They marked the power line but not the cable line. Sure
enough the cable line was cut as it was about 2 feet inside the garage
foundation. Cable people replaced it at no charge as I had called the
utility people.
Chris K-Man <thekmanrocks@gmail.com>: Aug 27 12:42PM -0700

On Friday, August 27, 2021 at 11:45:48 AM UTC-4, John Robertson wrote:
> (604)872-5757 (Pinballs, Jukes, Video Games)
> www.flippers.com
> "Old pinballers never die, they just flip out."
 
______
 
So long story short: this lady and her brother lived next door to each
other on the same street. When he passed, she sold her property and
moved into his house. Included was this Onkyo receiver and CD player,
and about four pairs of speakers all over the house.
 
You can just about imagine what I thought when I went min back and
looked at how all of this was hooked up. The main speaker bus(A) is to the
pair in the dining room. Bus B is where it starts to get hairy: the left
speaker output goes to one of the speakers out on her deck, and the right
terminal, as well as the surrounds and center, all had at least TWO
SPEAKERS EACH hooked up to them!
 
Now she states that her brother ran it this way for years, and she just
continued using it when she inherited the house, and this mess. Neither
of them over drove it, just for background music from the built in tuner or
the CD changer.
 
So I explained to her that it was improper to havr more than one speaker
per terminal, let alone THREE, and that over time this affected the impedance,
and caused the Onkyo to eventually overheat and probably blow a fuse.
She says her brother worked in the stereo buisness for years. Hmmmm.
 
Sure enough, only one click after I turned it on, no delayed second click.
 
She said she doesn't care about "surround sound" and just wants to be
able to hear the radio or her CDs. So I said she could probably just find
ankther 10-15 year old receiver, plus a separate speaker sleector, and wire
up her whole house that way. Or, just runn speakers A in stereo in the
living room, speaker B left in e dining room, and speaker B right outside
on the deck.
Phil Allison <pallison49@gmail.com>: Aug 27 04:12PM -0700

John Robertson wrote:
===================
> with the line input to the item under test. The light should not glow
> brightly except for initial turn-on, where it would be brightish, then
> dim as the caps charge.
 
** That crude idea has very limited application.
The series resistance of the lamp plus the rather large voltage drop does not alloy many items to operate.
 
I use a Variac and a digital current meter when powering up anything on my bench.
 
 
 
..... Phil
John Robertson <spam@flippers.com>: Aug 27 04:36PM -0700

On 2021/08/27 4:12 p.m., Phil Allison wrote:
 
> ..... Phil
 
Actually the dim bulb, say 100W, has a rather small cold resistance so
it doesn't end up with a large voltage drop - yet limits the current. It
works well for amplifiers, even tube amps, that don't draw more than
perhaps 3A when running. In other words our jukebox amps. For anything
higher powered I'd use a higher wattage bulb...
 
A variac (have a few of those) is a handy tool too, but the dim bulb can
be left in circuit while you wander off to do other things and if that
side of the room suddenly gets brighter you know something has happened
that now needs attention.
 
Might you also have a High-Pot tester? Great for verifying insulation
breakdown up to 2500VAC...(1200VAC for 120V requirements)
 
Comparing toys, what fun!
 
John :-#)#
 
--
(Please post followups or tech inquiries to the USENET newsgroup)
John's Jukes Ltd.
MOVED to #7 - 3979 Marine Way, Burnaby, BC, Canada V5J 5E3
(604)872-5757 (Pinballs, Jukes, Video Games)
www.flippers.com
"Old pinballers never die, they just flip out."
Phil Allison <pallison49@gmail.com>: Aug 27 05:05PM -0700

John Robertson wrote:
===================
 
> > I use a Variac and a digital current meter when powering up anything on my bench.
 
> Actually the dim bulb, say 100W, has a rather small cold resistance so
> it doesn't end up with a large voltage drop - yet limits the current.
 
** Total nonsense.
In a 240VAC country, the hot resistance is nearly 600 ohm.
This causes a huge voltage drop with 90% of what I service.
 
> A variac (have a few of those) is a handy tool too,
 
** Indispensable in fact.

Dial up as slowly as you like, avoiding all surges.
Dial back to check regulation " drop out " conditions.
 
 
> be left in circuit while you wander off to do other things and if that
> side of the room suddenly gets brighter you know something has happened
> that now needs attention.
 
** Yeah, OK but the item on test is running way below normal voltage.
IMO a worthless tests.
 
 
> Might you also have a High-Pot tester? Great for verifying insulation
 
** And destroying it.
Cannot be used on normal working equipment.
 
 
 
...... Phil
Chris K-Man <thekmanrocks@gmail.com>: Aug 27 01:01PM -0700

>would listen to me, you, or anyone anyway. It was the same
>with the "sizzle and boom" smiley face audio graphic equalizer
>settings.
___________
And the thing is, I've done so many CRT and flat screens with the
patterns on DVE Blu Ray, that I've noticed a commonality in where
the basic settings (Contrast, Brightness, Color, etc) end up via those
patterns, that I could get almost any other TV too look the same
way by memory! It's not rocket science.
 
It's undoing bad attitudes toward basic adjustment and calibration
that's difficult - not doing the actual process.
"Peter W." <peterwieck33@gmail.com>: Aug 27 09:56AM -0700

That was five (5) years ago. But:
 
Generalized warning: OEM belts for obsolete equipment are generally a bad choice, as those parts in may cases are as old and have sat around just as long as the parts inside the unit. I have had 100% success ordering generic O-rings from McMaster-Carr to the correct size, configuration and diameter (and at a fraction of the OEM cost). I have a choice of materials, O, [], D, 0 or otherwise, even toothed, and they are fresh.
 
Peter Wieck
Melrose Park, PA
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Digest for sci.electronics.repair@googlegroups.com - 21 updates in 6 topics

"Dušan Köszeghy" <dusan.koszeghy@gmail.com>: Aug 27 09:18AM -0700

> Will update the post when I get the spares.
> Best regards,
> Rupert
 
Hello Rupert, how did it work?
I have same issue. First of all. i have UD-M30 on which the tray would not open. I found sort of loosen rubber belt. Replaced it and everything was ok.
then, as we dont listen to cds very often, it got loosen again (the belt) and i decided to replace it as i had same from previous purchase.
Found out that after inserting cd it does not spin. Only spin it does for like a second is when i switch to CD from previous TAPE source.
 
Meanwhile i ordered the whole mechanism, so perhaps it will help.
Chris K-Man <thekmanrocks@gmail.com>: Aug 26 12:55PM -0700

> The easiest thing to have the customer check is the sound of the protection relay releasing/engaging. Turn on the unit and listen for a click. If none, then there is a problem with the output section and the protection circuit is engaged preventing the speakers from connecting. This can be caused by many things in the output section.
 
> When you get this for repair, look at the driver ICs (uPC1298V) for poor connections. This is a common failure point. Check any voltage regulators for poor connections as well.
 
> Dan
____
 
On my personal JVC receiver, there's a click almost concurrent with
pressing the power button, then about two seconds later, a second click,
after which I can hear sound. Is that the click I should listen for on hers?
Phil Allison <pallison49@gmail.com>: Aug 26 02:44PM -0700

Chris K-Man wrote:
===============
 
> On my personal JVC receiver, there's a click almost concurrent with
> pressing the power button, then about two seconds later, a second click,
> after which I can hear sound. Is that the click I should listen for on hers?
 
** The first click is the power relay - it turns on the main PSU.
The second is the muting/ protect relay.
 
BTW brand names are not models and models all differ.
 
 
 
...... Phil
dplatt@coop.radagast.org (Dave Platt): Aug 26 02:48PM -0700

In article <7a578025-ca3f-450c-aa4f-dd44cc3e074fn@googlegroups.com>,
 
>On my personal JVC receiver, there's a click almost concurrent with
>pressing the power button, then about two seconds later, a second click,
>after which I can hear sound. Is that the click I should listen for on hers?
 
Probably, yes. The first "click" would be a relay closing in the
primary AC-power circuit, turning in the main power supply to the
tuner and preamp and the amplifier. The second "click" would be the
output (speaker-protection) relay closing, connecting the amplifier
output to the speakers. This approach protects the speakers, and
eliminates any bothersome "POP" when the DC power comes on.
 
In most such designs, the second "click" won't happen if there's been
a failure in the amplifier or power supply circuit which would allow
damaging DC voltage to be sent to the speakers. It can also happen as
a result of a problem in the circuit which detects such failures.
 
A few years ago I diagnosed a huge Heathkit amplifier which wouldn't
make music... the output relay never operated and the red "FAULT"
light stayed on. It turned out to be a simple matter... a tiny
(1/8-ampere) fuse providing power to one channel's input circuitry had
opened up due to old age, and this created a DC-voltage fault that was
caught by the protection circuitry. Simply replacing the fuse fixed
the problem.
 
Another possible problem can be the relay itself - sometimes the
contacts get dirty or arc-damaged, and won't make a proper circuit.
This _usually_ seems to happen on only one channel, not on both at the
same time... replacing the relay is the best solution in these cases.
root <NoEMail@home.org>: Aug 27 04:47AM

Sorry for jumping into a continuing thread, but I 've had trouble
with Onkyo an receiver, but I found a very interesting thing:
they can heal themselves. The tuner on my first Onkyo failed.
Since everything else worked I put the receiver aside and bought
a new Onkyo. After a couple of weeks I decided I wanted to swap
it out for a Denon. So I packed up the new Onkyo, and before
I could return it I went back to the old Onkyo and the tuner
was working, as was everything else. The tuner healed itself
by sitting idle for a couple of weeks. Sometime later the
sound went out, and this time I just unplugged the unit
for a couple of days and, again the unit worked fine.
 
I still have the Onkyo, but I did switch to a Denon
because I got a 4K display.
Phil Allison <pallison49@gmail.com>: Aug 26 10:18PM -0700

root wrote:
=========
------------------------------------------------------------------
 
** That is called an " intermittent fault " in the repair business.
 
When the unit works fine most of the time, they are often near impossible to track down.
 
 
..... Phil
John Robertson <spam@flippers.com>: Aug 26 11:50PM -0700

On 2021/08/26 10:18 p.m., Phil Allison wrote:
 
> ** That is called an " intermittent fault " in the repair business.
 
> When the unit works fine most of the time, they are often near impossible to track down.
 
> ..... Phil
 
Indeed!
 
I use the "Thump Test" (patent pending) when dealing with intermittents
- it does turn up a fair percentage of bugs. Just today I spotted an
electrolytic cap that wiggled slightly when the case was lightly
thumped. Turned out one lead was not actually connected to the solder
(the joys of single sided PCBs), and the cap was a loose connection
causing other parts to fire (a strobe system) seemingly at random. This
was easy to fix, as it failed periodically, but only when tapped/thumped.
 
Other times not so lucky.
 
John :-#)#
Phil Allison <pallison49@gmail.com>: Aug 27 12:31AM -0700

John Robertson wrote:
=====================
> (the joys of single sided PCBs), and the cap was a loose connection
> causing other parts to fire (a strobe system) seemingly at random. This
> was easy to fix, as it failed periodically, but only when tapped/thumped.
 
--------------------------------------------
 
** That technique is known as " percussive maintenance ".
 
Another technique is " tune for maximum smoke".
This involves a source of high current connected to a DC rail shorted to ground.
One increases the voltage gradually while looking for smoke signals.
 
 
.... Phil
John Robertson <spam@flippers.com>: Aug 27 08:45AM -0700

On 2021/08/27 12:31 a.m., Phil Allison wrote:
> This involves a source of high current connected to a DC rail shorted to ground.
> One increases the voltage gradually while looking for smoke signals.
 
> .... Phil
 
We also use the "dim light test" where you put a light bulb in series
with the line input to the item under test. The light should not glow
brightly except for initial turn-on, where it would be brightish, then
dim as the caps charge.
 
Regulated power supplies are the technicians friend - where you can dial
up the current available...
 
John :-#)#
 
 
--
(Please post followups or tech inquiries to the USENET newsgroup)
John's Jukes Ltd.
MOVED to #7 - 3979 Marine Way, Burnaby, BC, Canada V5J 5E3
(604)872-5757 (Pinballs, Jukes, Video Games)
www.flippers.com
"Old pinballers never die, they just flip out."
None <none@nospam.invalid>: Aug 26 04:46PM -0500

On Wed, 25 Aug 2021 12:09:38 -0700, thekma # shortbus.edu
 
> Good call -
Someone finally bit at your troll bait. You must be so prou
 
> So how can I, among many people, help turn the tide against
> public acceptance of such a garish factory image - be it Home or
> Store mode?
 
Maybe by obsessive trolling on Usenet, getting maybe a single hit every
three or four years? That's not a smart way to achieve your goal, but
you're not a very smart retard.
 
> How to educate them otherwise?
 
Definitely by ko0k-dansing on a usenet hobby horse. Yeah, that's the
ticket! That's the way to reach the masses! At least usenet trolling won't
get you kicked out of restaurants and TV stores for being an obsessive
douche bag.
"ohg...@gmail.com" <ohger1s@gmail.com>: Aug 27 08:21AM -0700

On Thursday, August 26, 2021 at 5:46:42 PM UTC-4, None wrote:
> ticket! That's the way to reach the masses! At least usenet trolling won't
> get you kicked out of restaurants and TV stores for being an obsessive
> douche bag.
 
Dude, you need help, and I mean bad. The best advice would be to just let your hate go. Not only is that guy living rent free in your head, he's using your utilities at no charge. I'm serious. The only reaction you're getting with your trolling rants is either laughter or pity. Think about it
"ohg...@gmail.com" <ohger1s@gmail.com>: Aug 27 08:25AM -0700

On Wednesday, August 25, 2021 at 3:09:41 PM UTC-4, Chris K-Man wrote:
 
 
> I would estimate, since the mid-2000s, that millions of consumers
> automatically associate such overblown settings with HD and or 4K.
> How to educate them otherwise?
 
Why? They're happy with those crappy settings. Ignorance is bliss - let them be I say. Those settings are hard for me to watch, but I don't think anyone who likes cartoonishly bad video would listen to me, you, or anyone anyway. It was the same with the "sizzle and boom" smiley face audio graphic equalizer settings.
three_jeeps <jjhudak@gmail.com>: Aug 26 11:30AM -0700

I need to trace some cables (phone catv, ethernet) throughout a house.
An inexpensive tone generator would work but I don't have one. Any recommendations for an inexpensive one? or alternatives? I rigged a 1.5V battery holder with alligator clips to be used in conjunction with a modified LED 'probe' flashlight which will work. Looking for alternative ideas.
I did make a 'break out box' for the rj45 and rj11 sockets where needed.
Thanks
j
John Robertson <spam@flippers.com>: Aug 26 11:57AM -0700

On 2021/08/26 11:30 a.m., three_jeeps wrote:
> I did make a 'break out box' for the rj45 and rj11 sockets where needed.
> Thanks
> j
 
If you have an old portable AM radio you can whip up an electrical
noise/spark generator that you hook to one end of the wire then track it
through the house using the radio.
 
Not so many hand held radios lying around these days though...
 
John :-#)#
 
--
(Please post followups or tech inquiries to the USENET newsgroup)
John's Jukes Ltd.
MOVED to #7 - 3979 Marine Way, Burnaby, BC, Canada V5J 5E3
(604)872-5757 (Pinballs, Jukes, Video Games)
www.flippers.com
"Old pinballers never die, they just flip out."
Rob <nomail@example.com>: Aug 26 09:56PM +0200

> noise/spark generator that you hook to one end of the wire then track it
> through the house using the radio.
 
> Not so many hand held radios lying around these days though...
 
At work, we have a device that works like that. It contains a kind
of AM radio at one end and a simple "transmitter" (AM modulated generator)
for the other end. You clip the transmit side to a cable and it is
able to detect the other end of the cable within like a 10cm (4") range.
 
It is intended to find connection points on MDF/LDF, network patch panels,
etc etc.
 
Indeed it should be possible to build something like this yourself,
or simply use a radio and a "short range AM transmitter" module.
Phil Allison <pallison49@gmail.com>: Aug 26 02:48PM -0700

three_jeeps wrote:
===============
 
> I need to trace some cables (phone catv, ethernet) throughout a house.
 
** Did you mean * identify* cables or find the actual path ?
 
> An inexpensive tone generator would work but I don't have one.
 
** What would you do if you did?
 
Why not use a AA cell and an LED ?
 
 
...... Phil
"Peter W." <peterwieck33@gmail.com>: Aug 27 07:04AM -0700

On Thursday, August 26, 2021 at 2:30:11 PM UTC-4, three_jeeps wrote:
> I need to trace some cables (phone catv, ethernet) throughout a house.
 
https://www.homedepot.com/p/Klein-Tools-Tone-and-Probe-Tester-and-Tracer-Kit-VDV500-705/311456018
 
https://www.amazon.com/s?k=tone+and+probe+tester&crid=3972PA7CBL6GT&sprefix=tone+and+prombe%2Caps%2C152&ref=nb_sb_ss_sc_1_15
 
No further than your local big-box and/or Amazon.
 
Why go with a kluge when the real thing (and all the associated reliability thereto) is readily available?
 
Peter Wieck
Melrose Park, PA
Yaseen Ansari <yaseenansari1@gmail.com>: Aug 26 05:24PM -0700

On Monday, October 12, 2009 at 10:58:30 AM UTC-7, JA wrote:
> hex) or helping me finding a tool to do this?
> Best Regards
> AC
 
 
Hi,
I
am looking for similar tool. Did you find a solution?
 
YA
Donald Duck <donald.duck@disney.com>: Aug 27 02:15AM

> I
> am looking for similar tool. Did you find a solution?
 
> YA
 
Idiot google grouper.
 
The article to which you replied was written twelve (12) years ago.
John Robertson <spam@flippers.com>: Aug 26 10:06PM -0700

On 2021/08/26 5:24 p.m., Yaseen Ansari wrote:
> I
> am looking for similar tool. Did you find a solution?
 
> YA
 
Yaseen, there are DOS based programs for binary/Hex file splitting with
respect to EPROM programming. Can't recall the name but a bit of
searching should lead to the answer. This was talked to death back in
the late 90s and early 00s, so you should be able to track it down.
 
12 years is not a record for oldest Usenet post responded to!
 
John ;-#)#
"ohg...@gmail.com" <ohger1s@gmail.com>: Aug 26 12:53PM -0700

This had some battery leakage and the resultant corrosion opened some fine traces on the bottom side of the board, but there are also a small handful of smd devices that were also damaged and I can't read the print on them. I don't know the "series" of this unit, but the schematic I need would have a CA3080E in location U905 near the battery door. Any help appreciated.
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Digest for sci.electronics.repair@googlegroups.com - 7 updates in 2 topics

Chris K-Man <thekmanrocks@gmail.com>: Aug 25 12:04PM -0700

Onkyo TX-SV70 Pro Amp-Tuner - Display But No Sound
 
The owner states that "all the buttons do something" on
the front display when she presses them, but she hears no
sound out of the speakers attached to it.
 
I asked her to make sure she had selected the correct speaker
group(A or B). Still no sound. She was tuned to a known good
local radio station.
 
Any other suggestions?
Phil Allison <pallison49@gmail.com>: Aug 25 02:23PM -0700

Chris K-Man wrote:
=================
> group(A or B). Still no sound. She was tuned to a known good
> local radio station.
 
> Any other suggestions?
 
** Speaker relay not closing is likely.
Blown internal fuses another.
 
 
....... Phil
whit3rd <whit3rd@gmail.com>: Aug 26 02:18AM -0700

On Wednesday, August 25, 2021 at 12:04:07 PM UTC-7, Chris K-Man wrote:
 
> The owner states that "all the buttons do something" on
> the front display when she presses them, but she hears no
> sound out of the speakers attached to it.
 
So, she's tried the 'tape monitor' button, and that didn't fix the problem?
Chris K-Man <thekmanrocks@gmail.com>: Aug 26 02:53AM -0700

On Thursday, August 26, 2021 at 5:18:59 AM UTC-4, whit3rd wrote:
> > the front display when she presses them, but she hears no
> > sound out of the speakers attached to it.
> So, she's tried the 'tape monitor' button, and that didn't fix the problem?
______
 
I'll check all that when I visit the customer
abrsvc <dansabrservices@yahoo.com>: Aug 26 06:19AM -0700

On Thursday, August 26, 2021 at 5:53:39 AM UTC-4, Chris K-Man wrote:
> > So, she's tried the 'tape monitor' button, and that didn't fix the problem?
> ______
 
> I'll check all that when I visit the customer
The easiest thing to have the customer check is the sound of the protection relay releasing/engaging. Turn on the unit and listen for a click. If none, then there is a problem with the output section and the protection circuit is engaged preventing the speakers from connecting. This can be caused by many things in the output section.
 
When you get this for repair, look at the driver ICs (uPC1298V) for poor connections. This is a common failure point. Check any voltage regulators for poor connections as well.
 
Dan
"ohg...@gmail.com" <ohger1s@gmail.com>: Aug 25 10:09AM -0700

On Sunday, August 22, 2021 at 7:12:36 AM UTC-4, Chris K-Man wrote:
 
> I have an interesting question for all of you:
 
> What do you think of the quality/characteristics of the picture
> you see on new TVs on display in stores?
 
They're cartoonishly inaccurate - but intentionally so. When there are 50 displays on the wall all running at the same time, the one with most bizarre colors and brightness is the one most people will pick as the best picture.
 
When setting up a new TV for home, most have a "home" or "store" or "demo" option. The home setting sets the LED array brightness to 100% by default. The store or demo mode sets it for 110 plus percent for the same reason.
 
I remember the time my softball team was at a bar after a game, and they had a Sharp Aquos 60" in default settings. The grass on the infield of the game we were watching that was on was a weird fluorescent green, the blacks were dark blue, and it was overly bright. One of the guys was impressed with that mess of a picture and asked if I could adjust his Sony to look like that. I said I could try, but wasn't sure if I could get his Sony to look that bad on purpose. He of course was shocked but when I asked if he ever saw grass that color, the light went off.
Chris K-Man <thekmanrocks@gmail.com>: Aug 25 12:09PM -0700

> They're cartoonishly inaccurate - but intentionally so. When there are 50 displays on the wall all running at the same time, the one with most bizarre colors and brightness is the one most people will pick as the best picture.
 
> When setting up a new TV for home, most have a "home" or "store" or "demo" option. The home setting sets the LED array brightness to 100% by default. The store or demo mode sets it for 110 plus percent for the same reason.
 
> I remember the time my softball team was at a bar after a game, and they had a Sharp Aquos 60" in default settings. The grass on the infield of the game we were watching that was on was a weird fluorescent green, the blacks were dark blue, and it was overly bright. One of the guys was impressed with that mess of a picture and asked if I could adjust his Sony to look like that. I said I could try, but wasn't sure if I could get his Sony to look that bad on purpose. He of course was shocked but when I asked if he ever saw grass that color, the light went off.
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Good call - with the grass that is!
 
So how can I, among many people, help turn the tide against public
acceptance of such a garish factory image - be it Home or Store mode?
 
I would estimate, since the mid-2000s, that millions of consumers
automatically associate such overblown settings with HD and or 4K.
How to educate them otherwise?
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