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Author Topic: neutral light won't come on  (Read 3620 times)

Hylife

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Re: neutral light won't come on
« Reply #10 on: June 01, 2015, 01:39:08 PM »

Soldering in a replacement LED is easy-peasy. Just use a nice hot fine point soldering iron.
The LED has a polarity + and - (anode and cathode). Hold them up to the light and you can see a distinctly different internal construction for each pin.



The shorter pin is the cathode (-).

If you don't feel up to it, disassemble the instruments panel and take your circuit board to an electronics hobby shop and have them solder it for you. 10 second job.
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ninetenseven

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Re: neutral light won't come on
« Reply #11 on: June 08, 2015, 09:48:33 AM »

Great tuturial Hylife, thanks!

But the problem is that the LED's used on the circuit are... "square tiny integrated LED's". Not sure how to solder it, even with the explanation above.
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Hylife

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Re: neutral light won't come on
« Reply #12 on: June 08, 2015, 01:10:09 PM »

Doesn't matter what shape the originals are unless they have to poke through some small opening to be exposed to the external area.
Usually the whole circuit board is contained underneath an external lens to make the thing waterproof so the LED is just a backlight.
Those little square or oblong ones have the same internal construction as the round ones (hold up to light), and also have one leg shorter for the minus side.
If the old LED is dead you can just parallel up a replacement without even removing the old one if it all fits. Sometimes I just snap off the old LED (wiggle back and forth) and solder the replacement to the exposed legs of the broken one.



The bigger side of the LED internal looks like a cup. That IS exactly what it is. The cup holds the substance that glows and there is a very fine "tickler" wire that loops over from the smaller bit to make contact with it. The Cup is the Cathode (the minus side) and also has the shorter leg wire (before you cut it shorter of course).
« Last Edit: June 08, 2015, 01:12:02 PM by Hylife »
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ninetenseven

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Re: neutral light won't come on
« Reply #13 on: June 08, 2015, 02:43:01 PM »

What I was saying is that they look like this:



not so easy to solder
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umop-ǝpisdn

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Re: neutral light won't come on
« Reply #14 on: June 08, 2015, 09:28:43 PM »

Those are easy to solder. Just work with one of the corner pins. Put a little solder first and use a tweezer and iron to get it lined up perfect, then solder the others.

Not hard at all.
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ninetenseven

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Re: neutral light won't come on
« Reply #15 on: June 08, 2015, 10:13:52 PM »

But these things are so tiny! Can't do it  >:( Migth just go to an electronic store to fix it
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Hylife

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Re: neutral light won't come on
« Reply #16 on: June 09, 2015, 12:53:00 PM »

Known as a "Surface Mount" component. They just don't have legs but yu can still solder the edges. I use a bulldog clip to hold them still.
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jose costa

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Re: neutral light won't come on
« Reply #17 on: July 26, 2017, 01:37:43 AM »

Hello guys! This topic has been standing for some time, but I hope someone can read at some point. Has the following problem on the GV650 year 2012/3: when the neutral light is off (but the bike starts when the sidestand is down) engine operation gets worse, more vibrant at all gears and turns. When the neutral light comes back on, the motor starts operating with less vibration. As grounding through the neutral sensor works, can the failure of the neutral light on the panel to send erroneous information to the ECU? Any leakage to earth / ground in the neutral light cabinet on the panel can cause this and have procedure to test? Greetings!
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Dojy_biker

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Re: neutral light won't come on
« Reply #18 on: July 28, 2017, 01:06:22 AM »

try a new electrical earth from -ve battery to engine ;)
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umop-ǝpisdn

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Re: neutral light won't come on
« Reply #19 on: July 28, 2017, 01:50:00 AM »

An alternative suggestion. ..what about the gear position sensor?
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