Digest for sci.electronics.repair@googlegroups.com - 12 updates in 3 topics

bruce2bowser@gmail.com: Aug 14 07:17PM -0700

> > hi
> > i have a panasonic 60w dc motor for air conditioner that i wanna use this motor for an AC system so i need redraw wiring of DC motor for using it on AC system so i need help cuz i dont know how must done this job?
 
> Pretty basic: Rectify the AC at the motor.
 
Or plug the AC system into a DC converter.
"pfjw@aol.com" <peterwieck33@gmail.com>: Aug 15 04:02AM -0700


> Or plug the AC system into a DC converter.
 
Unless the controls require AC.
 
Peter Wieck
Melrose Park, PA
mike <ham789@netzero.net>: Aug 14 06:56PM -0700

I have a bunch of apple phones and ipods
that I use for music playback parked in
speaker docks.
All the apple stuff uses the
older 30-pin connector for charging.
 
They're on charge while playing music 24/7.
 
I've been using some android phones in a similar
manner charging via USB.
Doesn't take long for the lithium batteries to swell.
 
I'm migrating to apple devices and I want to prevent
the batteries swelling up.
 
Any ideas on how to prevent this?
I don't care about running for long on battery,
just want to keep the OS happy when I swap the
phone in the dock.
 
I don't expect there's anything I can do in the
charger.
 
http://pinouts.ru/PortableDevices/ipod_pinout.shtml
 
Simplest thing I can think of is to put a pair
of backtoback diodes in series with the battery.
 
Before I start busting plastic to get 'em apart,
thought I'd ask if the charge algorithm might
object and shut down. I'd like to keep some
charge on the battery so I can remove the device
from the dock without losing data.
 
Ideas?
tabbypurr@gmail.com: Aug 14 07:11PM -0700

On Wednesday, 15 August 2018 02:57:11 UTC+1, mike wrote:
> charge on the battery so I can remove the device
> from the dock without losing data.
 
> Ideas?
 
Iphone 4 batteries are under £4 a time.
 
 
NT
mike <ham789@netzero.net>: Aug 14 07:43PM -0700


>> Ideas?
 
> Iphone 4 batteries are under £4 a time.
 
> NT
 
OUCH!
That's 4X what the phone cost.
And not an answer to the question.
John Robertson <spam@flippers.com>: Aug 14 09:56PM -0700

On 2018/08/14 7:43 PM, mike wrote:
 
> OUCH!
> That's 4X what the phone cost.
> And not an answer to the question.
 
Not sure if it is a help to you, but my adult daughter has an old iPod
plugged into a speaker box/charger which has been sitting on their
kitchen counter and has been running for five or so years with no
battery issues.
 
John :-#)#
mike <ham789@netzero.net>: Aug 15 12:10AM -0700

On 8/14/2018 9:56 PM, John Robertson wrote:
> kitchen counter and has been running for five or so years with no
> battery issues.
 
> John :-#)#
 
Thanks,
All my swollen batteries are in Android and Windows phones.
Maybe Apple got it right.
John Robertson <spam@flippers.com>: Aug 15 12:44AM -0700

On 2018/08/15 12:10 AM, mike wrote:
 
> Thanks,
> All my swollen batteries are in Android and Windows phones.
> Maybe Apple got it right.
 
I leave my iPhone 6 on charge overnight, and it is cool to the touch in
the morning. It actually only takes an hour or so to charge...
 
John ;-#)#
"Ian Field" <gangprobing.alien1@virginmedia.com>: Aug 14 07:27PM +0100

Google is being very evasive on this one!
 
28WN20.
 
Pretty sure the degauss thermistor has shattered and I'd rather not have to
hand trace to figure out whether its a PTC/PTC or PTC/NTC type.
 
Thanks for any help.
"pfjw@aol.com" <peterwieck33@gmail.com>: Aug 14 11:49AM -0700

On Tuesday, August 14, 2018 at 2:27:27 PM UTC-4, Ian Field wrote:
 
> Pretty sure the degauss thermistor has shattered and I'd rather not have to
> hand trace to figure out whether its a PTC/PTC or PTC/NTC type.
 
> Thanks for any help.
 
https://english.electronica-pt.com/electronica-search?find=MATSUI
 
 
Maybe here?
 
Peter Wieck
Melrose Park, PA
"Ian Field" <gangprobing.alien1@virginmedia.com>: Aug 14 08:15PM +0100

"pfjw@aol.com" <peterwieck33@gmail.com> wrote in message
news:d17994ab-9437-413a-a303-6f3438d824b9@googlegroups.com...
 
> Maybe here?
 
> Peter Wieck
> Melrose Park, PA
 
Many thanks - also found info on the Hitachi that phutted yesterday.
tabbypurr@gmail.com: Aug 14 07:13PM -0700

On Tuesday, 14 August 2018 19:27:27 UTC+1, Ian Field wrote:
 
> Pretty sure the degauss thermistor has shattered and I'd rather not have to
> hand trace to figure out whether its a PTC/PTC or PTC/NTC type.
 
> Thanks for any help.
 
usually degaussing doesn't need to be fixed unless you move the tv. The dual element thermistor can most likely be replaced by a standard one from almost any other colour tv.
 
 
NT
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