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elektroda.net NewsGroups Forum Index - Electronic for beginners - Problem with Childs 12v 4x4 car - from an Electronics dummy!
BobbyDazzler
Guest
Guest
Mon Oct 17, 2011 12:29 am
On Oct 16, 9:35 pm, BobbyDazzler <david.a.mitchel...@googlemail.com>
wrote:
Quote:
On Oct 14, 12:14 am, Rich Grise <ri...@example.net.invalid> wrote:
BobbyDazzler wrote:
I can test a circuit and check if there is powere on switches and
cables but that tis the total knowledge of electronics I have
(
I was given a childs 12v rideon 4x4 which wasn't working. If I switch
it on and press the accelerator pedal (swtch) nothing happens. I have
replaced the battery and can follow the current right through to the
motors but nothing happens. I have wired the motors directly from the
battery and they work fine. With such a basic knoweldge of
electronics I don't understand what is wrong? The only thing that is
slightly confusing is a small Joemex 77 series "thingy" which I
believe acts as a thermal cutout (assuming works for a period of time
as there is no button to reset it) Can anyone offer any words of
wisdom?
Technically, you don't "follow the current" unless you have a current
probe. But your voltmeter should be enough. If, when you wire the motors
directly from the battery, they work fine, then it's either
the "accelerator" switch or that thermal fuse thingy.
Have Run!
Rich
Now I'm even more confused than when I started!
I have managed to "follow the current" right up to the motors without
them working! I'll try and explain the wiring. AS well as the
accelarator switch there are also 2 switches which form the "gears"
forward and reverse. If they are both swu=itched one way the wheels
are druiven forward, if they are both switched the other weay the
wheels are driven in reverse. One of the switches contains the
thermal cutout. I'm going to bypass these and see if it works. Will
report back shortly!
BobbyDazzler wrote:
I can test a circuit and check if there is powere on switches and
cables but that tis the total knowledge of electronics I have
(
I was given a childs 12v rideon 4x4 which wasn't working. If I switch
it on and press the accelerator pedal (swtch) nothing happens. I have
replaced the battery and can follow the current right through to the
motors but nothing happens. I have wired the motors directly from the
battery and they work fine. With such a basic knoweldge of
electronics I don't understand what is wrong? The only thing that is
slightly confusing is a small Joemex 77 series "thingy" which I
believe acts as a thermal cutout (assuming works for a period of time
as there is no button to reset it) Can anyone offer any words of
wisdom?
Technically, you don't "follow the current" unless you have a current
probe. But your voltmeter should be enough. If, when you wire the motors
directly from the battery, they work fine, then it's either
the "accelerator" switch or that thermal fuse thingy.
Have Run!
Rich
Now I'm even more confused than when I started!
I have managed to "follow the current" right up to the motors without
them working! I'll try and explain the wiring. AS well as the
accelarator switch there are also 2 switches which form the "gears"
forward and reverse. If they are both swu=itched one way the wheels
are druiven forward, if they are both switched the other weay the
wheels are driven in reverse. One of the switches contains the
thermal cutout. I'm going to bypass these and see if it works. Will
report back shortly!
Still not working, think I need to buy some new switches and rewire
the whole thing!
Frnak McKenney
Guest
Guest
Mon Oct 17, 2011 2:13 pm
Hi, BobbyDazzler.
On Sun, 16 Oct 2011 13:35:51 -0700 (PDT), BobbyDazzler <david.a.mitchell66_at_googlemail.com> wrote:
Quote:
On Oct 14, 12:14Â am, Rich Grise <ri...@example.net.invalid> wrote:
BobbyDazzler wrote:
I can test a circuit and check if there is powere on switches
and cables but that tis the total knowledge of electronics I
have(
I was given a childs 12v rideon 4x4 which wasn't working. Â If
I switch it on and press the accelerator pedal (swtch) nothing
happens. Â I have replaced the battery and can follow the
current right through to the motors but nothing happens. Â I
have wired the motors directly from the battery and they work
fine. Â With such a basic knoweldge of electronics I don't
understand what is wrong? Â The only thing that is slightly
confusing is a small Joemex 77 series "thingy" which I believe
acts as a thermal cutout (assuming works for a period of time
as there is no button to reset it) Â Can anyone offer any words
of wisdom?
BobbyDazzler wrote:
I can test a circuit and check if there is powere on switches
and cables but that tis the total knowledge of electronics I
have
(
I was given a childs 12v rideon 4x4 which wasn't working. Â If
I switch it on and press the accelerator pedal (swtch) nothing
happens. Â I have replaced the battery and can follow the
current right through to the motors but nothing happens. Â I
have wired the motors directly from the battery and they work
fine. Â With such a basic knoweldge of electronics I don't
understand what is wrong? Â The only thing that is slightly
confusing is a small Joemex 77 series "thingy" which I believe
acts as a thermal cutout (assuming works for a period of time
as there is no button to reset it) Â Can anyone offer any words
of wisdom?
[...]
Quote:
Now I'm even more confused than when I started!
Welcome to USENET. <grin!>
Quote:
I have managed to "follow the current" right up to the motors
without them working! I'll try and explain the wiring. AS well as
the accelarator switch there are also 2 switches which form the
"gears" forward and reverse. If they are both swu=itched one way
the wheels are druiven forward, if they are both switched the
other weay the wheels are driven in reverse. One of the switches
contains the thermal cutout. I'm going to bypass these and see if
it works. Will report back shortly!
without them working! I'll try and explain the wiring. AS well as
the accelarator switch there are also 2 switches which form the
"gears" forward and reverse. If they are both swu=itched one way
the wheels are druiven forward, if they are both switched the
other weay the wheels are driven in reverse. One of the switches
contains the thermal cutout. I'm going to bypass these and see if
it works. Will report back shortly!
This ride-on sounds like the Mattel PowerWheels jeep sitting in my
basement waiting for me to get back to it: two 6V batteries, a
Forward/Reverse switch, a High/Low speed switch, and an
"Accelerator" pedal.
The drive motors )and gearboxes) are mounted on/around the rear
axle. Forward/Reverse is a DPDT switch that reverses the power
going to the rear wheels. Low/High connectd the batteries in series
(giving 12V) or parallel (sending 6V to the motors: slower speed,
but longer operating time). The Accelerator is a simple on/off foot
switch.
I was going to try to type in an ASCII schematic for you, but then I
ran across this one in a forum post:
Read This First (FAQ's): The Definitive "Wiring diagram" thread
http://www.modifiedpowerwheels.com/forum/topic.asp?TOPIC_ID=2236
I don't recall your mentioning the specific manufacturer or model
for your ride-on, but this site seems to cover a number of different
types (FAQs on R/C and on those "push nuts" that are so annoying):
Modified Power Wheels.com
Power Wheels & Peg Perego upgrades, Modifications, how to fix
http://www.modifiedpowerwheels.com/
You might also find useful information from these sites:
Power Wheels Troubleshooting Guide
http://ungn.net/pwfaultmatrix.pdf
Power Wheels Modification CD for Windows
http://powerwheelscd.com/
Hope something in there helps.
Frank McKenney
--
"When a true genius appears in the world, you may know him by this
sign, that the dunces are all in confederacy against him."
-- Jonathan Swift
--
Frank McKenney, McKenney Associates
Richmond, Virginia / (804) 320-4887
Munged E-mail: frank uscore mckenney aatt mindspring ddoott com
George Herold
Guest
Guest
Mon Oct 17, 2011 4:16 pm
On Oct 16, 6:29 pm, BobbyDazzler <david.a.mitchel...@googlemail.com>
wrote:
Quote:
On Oct 16, 9:35 pm, BobbyDazzler <david.a.mitchel...@googlemail.com
wrote:
On Oct 14, 12:14 am, Rich Grise <ri...@example.net.invalid> wrote:
BobbyDazzler wrote:
I can test a circuit and check if there is powere on switches and
cables but that tis the total knowledge of electronics I have(
I was given a childs 12v rideon 4x4 which wasn't working. If I switch
it on and press the accelerator pedal (swtch) nothing happens. I have
replaced the battery and can follow the current right through to the
motors but nothing happens. I have wired the motors directly from the
battery and they work fine. With such a basic knoweldge of
electronics I don't understand what is wrong? The only thing that is
slightly confusing is a small Joemex 77 series "thingy" which I
believe acts as a thermal cutout (assuming works for a period of time
as there is no button to reset it) Can anyone offer any words of
wisdom?
Technically, you don't "follow the current" unless you have a current
probe. But your voltmeter should be enough. If, when you wire the motors
directly from the battery, they work fine, then it's either
the "accelerator" switch or that thermal fuse thingy.
Have Run!
Rich
Now I'm even more confused than when I started!
I have managed to "follow the current" right up to the motors without
them working! I'll try and explain the wiring. AS well as the
accelarator switch there are also 2 switches which form the "gears"
forward and reverse. If they are both swu=itched one way the wheels
are druiven forward, if they are both switched the other weay the
wheels are driven in reverse. One of the switches contains the
thermal cutout. I'm going to bypass these and see if it works. Will
report back shortly!
Still not working, think I need to buy some new switches and rewire
the whole thing!- Hide quoted text -
- Show quoted text -
wrote:
On Oct 14, 12:14 am, Rich Grise <ri...@example.net.invalid> wrote:
BobbyDazzler wrote:
I can test a circuit and check if there is powere on switches and
cables but that tis the total knowledge of electronics I have
(
I was given a childs 12v rideon 4x4 which wasn't working. If I switch
it on and press the accelerator pedal (swtch) nothing happens. I have
replaced the battery and can follow the current right through to the
motors but nothing happens. I have wired the motors directly from the
battery and they work fine. With such a basic knoweldge of
electronics I don't understand what is wrong? The only thing that is
slightly confusing is a small Joemex 77 series "thingy" which I
believe acts as a thermal cutout (assuming works for a period of time
as there is no button to reset it) Can anyone offer any words of
wisdom?
Technically, you don't "follow the current" unless you have a current
probe. But your voltmeter should be enough. If, when you wire the motors
directly from the battery, they work fine, then it's either
the "accelerator" switch or that thermal fuse thingy.
Have Run!
Rich
Now I'm even more confused than when I started!
I have managed to "follow the current" right up to the motors without
them working! I'll try and explain the wiring. AS well as the
accelarator switch there are also 2 switches which form the "gears"
forward and reverse. If they are both swu=itched one way the wheels
are druiven forward, if they are both switched the other weay the
wheels are driven in reverse. One of the switches contains the
thermal cutout. I'm going to bypass these and see if it works. Will
report back shortly!
Still not working, think I need to buy some new switches and rewire
the whole thing!- Hide quoted text -
- Show quoted text -
Yeah the one I had.. (A power-wheel thing from Fisher-Price) also had
a third switch that would do a low and high speed... Connected the two
6V batteries in series or parallel across the motor. And I think the
reverse always ran in 'low' speed. So it took me a bit with pencil
and paper to trace the circuits. The switches weren't completely shot
so it would run sometimes. I was able to get it running for a while
by just swapping switches. But eventually the 'long term' solution
was to replace them. I mounted big toggle switches (from my junk bin)
on the 'dash board'.
George H.
BobbyDazzler
Guest
Guest
Fri Nov 11, 2011 10:20 am
Finally got it working by replacing 2 switches and removing the
accelerator switch! Unfortunately this makes it unsafe for my 3 year
old as he waits till he has crashed before switching off
) I cannot
find a UK supplier of the accelerator switch, anyone recommend
somewhere? I have tried Maplins already.
Rich Grise
Guest
Guest
Fri Nov 11, 2011 10:40 pm
BobbyDazzler wrote:
Quote:
Finally got it working by replacing 2 switches and removing the
accelerator switch! Unfortunately this makes it unsafe for my 3 year
old as he waits till he has crashed before switching off) I cannot
find a UK supplier of the accelerator switch, anyone recommend
somewhere? I have tried Maplins already.
accelerator switch! Unfortunately this makes it unsafe for my 3 year
old as he waits till he has crashed before switching off
) I cannot
find a UK supplier of the accelerator switch, anyone recommend
somewhere? I have tried Maplins already.
And why exactly is it that you haven't bothered to train him?
Thanks,
Rich
George Herold
Guest
Guest
Fri Nov 11, 2011 10:54 pm
On Nov 11, 3:20 am, BobbyDazzler <david.a.mitchel...@googlemail.com>
wrote:
Quote:
Finally got it working by replacing 2 switches and removing the
accelerator switch! Unfortunately this makes it unsafe for my 3 year
old as he waits till he has crashed before switching off) I cannot
find a UK supplier of the accelerator switch, anyone recommend
somewhere? I have tried Maplins already.
accelerator switch! Unfortunately this makes it unsafe for my 3 year
old as he waits till he has crashed before switching off
) I cannot
find a UK supplier of the accelerator switch, anyone recommend
somewhere? I have tried Maplins already.
Is it a rocker switch? Digikey has a nice search feature. You can
find a switch there and then see if Farnell carries the same brand.
http://search.digikey.com/us/en/cat/switches/rocker/1114204?k=rocker%20switch
George H.
BobbyDazzler
Guest
Guest
Fri Nov 11, 2011 11:10 pm
On Nov 11, 8:54 pm, George Herold <gher...@teachspin.com> wrote:
Quote:
On Nov 11, 3:20 am, BobbyDazzler <david.a.mitchel...@googlemail.com
wrote:
Finally got it working by replacing 2 switches and removing the
accelerator switch! Unfortunately this makes it unsafe for my 3 year
old as he waits till he has crashed before switching off) I cannot
find a UK supplier of the accelerator switch, anyone recommend
somewhere? I have tried Maplins already.
Is it a rocker switch? Digikey has a nice search feature. You can
find a switch there and then see if Farnell carries the same brand.
http://search.digikey.com/us/en/cat/switches/rocker/1114204?k=rocker%....
George H.
wrote:
Finally got it working by replacing 2 switches and removing the
accelerator switch! Unfortunately this makes it unsafe for my 3 year
old as he waits till he has crashed before switching off
) I cannot
find a UK supplier of the accelerator switch, anyone recommend
somewhere? I have tried Maplins already.
Is it a rocker switch? Digikey has a nice search feature. You can
find a switch there and then see if Farnell carries the same brand.
http://search.digikey.com/us/en/cat/switches/rocker/1114204?k=rocker%....
George H.
The switch is marked as KCD2 and looks like a rocker. It doesn't
stay switched on though. If you press it on it will connect the
circuit - but as soon as you let go it springs back to "off" and
breaks the circuit
Michael A. Terrell
Guest
Guest
Sat Nov 12, 2011 5:12 am
Rich Grise wrote:
Quote:
BobbyDazzler wrote:
Finally got it working by replacing 2 switches and removing the
accelerator switch! Unfortunately this makes it unsafe for my 3 year
old as he waits till he has crashed before switching off
) I cannot
find a UK supplier of the accelerator switch, anyone recommend
somewhere? I have tried Maplins already.
And why exactly is it that you haven't bothered to train him?
Why didn't your lousy parents train you not to post when you're high?
--
You can't have a sense of humor, if you have no sense.
John Fields
Guest
Guest
Sat Nov 12, 2011 2:04 pm
On Fri, 11 Nov 2011 13:10:17 -0800 (PST), BobbyDazzler
<david.a.mitchell66_at_googlemail.com> wrote:
Quote:
On Nov 11, 8:54 pm, George Herold <gher...@teachspin.com> wrote:
On Nov 11, 3:20 am, BobbyDazzler <david.a.mitchel...@googlemail.com
wrote:
Finally got it working by replacing 2 switches and removing the
accelerator switch! Unfortunately this makes it unsafe for my 3 year
old as he waits till he has crashed before switching off) I cannot
find a UK supplier of the accelerator switch, anyone recommend
somewhere? I have tried Maplins already.
Is it a rocker switch? Digikey has a nice search feature. You can
find a switch there and then see if Farnell carries the same brand.
http://search.digikey.com/us/en/cat/switches/rocker/1114204?k=rocker%...
George H.
The switch is marked as KCD2 and looks like a rocker. It doesn't
stay switched on though. If you press it on it will connect the
circuit - but as soon as you let go it springs back to "off" and
breaks the circuit
On Nov 11, 3:20 am, BobbyDazzler <david.a.mitchel...@googlemail.com
wrote:
Finally got it working by replacing 2 switches and removing the
accelerator switch! Unfortunately this makes it unsafe for my 3 year
old as he waits till he has crashed before switching off
) I cannot
find a UK supplier of the accelerator switch, anyone recommend
somewhere? I have tried Maplins already.
Is it a rocker switch? Digikey has a nice search feature. You can
find a switch there and then see if Farnell carries the same brand.
http://search.digikey.com/us/en/cat/switches/rocker/1114204?k=rocker%...
George H.
The switch is marked as KCD2 and looks like a rocker. It doesn't
stay switched on though. If you press it on it will connect the
circuit - but as soon as you let go it springs back to "off" and
breaks the circuit
---
Googling "KCD2 switch" gets about 197,000 hits.
--
JF
Terminal Crazy
Guest
Guest
Sat Nov 12, 2011 6:23 pm
In article <tlrsb7h4qapvj6fvobc92m5dpbuc6ea8mu_at_4ax.com>,
John Fields <jfields_at_austininstruments.com> wrote:
Quote:
---
Googling "KCD2 switch" gets about 197,000 hits.
Googling "KCD2 switch" gets about 197,000 hits.
I've just tried that and got: about 198,000 hits
I've always found more results on subjects when you search again a day or
so later. I think it gives Google more time to catalogue results.
--
Terminal_Crazy
Mitch - 1995 Z28 LT1 M6 terminal_crazy_at_sand-hill.freeserve.co.uk
Lancashire England http://www.sand-hill.freeserve.co.uk/terminal_crazy/
ehsjr
Guest
Guest
Sun Nov 13, 2011 6:23 am
BobbyDazzler wrote:
Quote:
On Nov 11, 8:54 pm, George Herold <gher...@teachspin.com> wrote:
On Nov 11, 3:20 am, BobbyDazzler <david.a.mitchel...@googlemail.com
wrote:
Finally got it working by replacing 2 switches and removing the
accelerator switch! Unfortunately this makes it unsafe for my 3 year
old as he waits till he has crashed before switching off) I cannot
find a UK supplier of the accelerator switch, anyone recommend
somewhere? I have tried Maplins already.
Is it a rocker switch? Digikey has a nice search feature. You can
find a switch there and then see if Farnell carries the same brand.
http://search.digikey.com/us/en/cat/switches/rocker/1114204?k=rocker%...
George H.
The switch is marked as KCD2 and looks like a rocker. It doesn't
stay switched on though. If you press it on it will connect the
circuit - but as soon as you let go it springs back to "off" and
breaks the circuit
On Nov 11, 3:20 am, BobbyDazzler <david.a.mitchel...@googlemail.com
wrote:
Finally got it working by replacing 2 switches and removing the
accelerator switch! Unfortunately this makes it unsafe for my 3 year
old as he waits till he has crashed before switching off
) I cannot
find a UK supplier of the accelerator switch, anyone recommend
somewhere? I have tried Maplins already.
Is it a rocker switch? Digikey has a nice search feature. You can
find a switch there and then see if Farnell carries the same brand.
http://search.digikey.com/us/en/cat/switches/rocker/1114204?k=rocker%...
George H.
The switch is marked as KCD2 and looks like a rocker. It doesn't
stay switched on though. If you press it on it will connect the
circuit - but as soon as you let go it springs back to "off" and
breaks the circuit
If you can't get a replacement switch, you could jury rig one with
a momentary pushbutton or micro switch or sewing machine foot
switch and an automotive relay. Wire the switch (when pressed)
to energize the relay coil, and use the relay contacts in place
of the original switch contacts.
Ed
George Herold
Guest
Guest
Mon Nov 14, 2011 6:43 pm
On Nov 11, 4:10 pm, BobbyDazzler <david.a.mitchel...@googlemail.com>
wrote:
Quote:
On Nov 11, 8:54 pm, George Herold <gher...@teachspin.com> wrote:
On Nov 11, 3:20 am, BobbyDazzler <david.a.mitchel...@googlemail.com
wrote:
Finally got it working by replacing 2 switches and removing the
accelerator switch! Unfortunately this makes it unsafe for my 3 year
old as he waits till he has crashed before switching off) I cannot
find a UK supplier of the accelerator switch, anyone recommend
somewhere? I have tried Maplins already.
Is it a rocker switch? Digikey has a nice search feature. You can
find a switch there and then see if Farnell carries the same brand.
http://search.digikey.com/us/en/cat/switches/rocker/1114204?k=rocker%....
George H.
The switch is marked as KCD2 and looks like a rocker. It doesn't
stay switched on though. If you press it on it will connect the
circuit - but as soon as you let go it springs back to "off" and
breaks the circuit
On Nov 11, 3:20 am, BobbyDazzler <david.a.mitchel...@googlemail.com
wrote:
Finally got it working by replacing 2 switches and removing the
accelerator switch! Unfortunately this makes it unsafe for my 3 year
old as he waits till he has crashed before switching off
) I cannot
find a UK supplier of the accelerator switch, anyone recommend
somewhere? I have tried Maplins already.
Is it a rocker switch? Digikey has a nice search feature. You can
find a switch there and then see if Farnell carries the same brand.
http://search.digikey.com/us/en/cat/switches/rocker/1114204?k=rocker%....
George H.
The switch is marked as KCD2 and looks like a rocker. It doesn't
stay switched on though. If you press it on it will connect the
circuit - but as soon as you let go it springs back to "off" and
breaks the circuit
Yeah that's called a momentary switch. There are options on the
digikey search for that...(mom.) stands for momentary. Or as others
have said find the direct replacment.
George H.
elektroda.net NewsGroups Forum Index - Electronic for beginners - Problem with Childs 12v 4x4 car - from an Electronics dummy!
