replacing radio lights in an 1800


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m2102
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replacing radio lights in an 1800

Postby m2102 » Mon Mar 09, 2015 11:05 am



a friend of mine has some lights out in his radio and was wanting to replace. is it the same way as the lights in a 1500 radio? thanks in advance



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Re: replacing radio lights in an 1800

Postby WingAdmin » Mon Mar 09, 2015 11:33 am

They are small 12 volt incandescent, very similar to the GL1500, so they should be able to be replaced the same way.

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Re: replacing radio lights in an 1800

Postby Steve F » Mon Mar 09, 2015 11:40 am

All I have is a "plus" screwdriver. Is that OK? or would it mess things up?
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Re: replacing radio lights in an 1800

Postby WingAdmin » Tue Mar 10, 2015 12:23 pm

Steve F wrote:All I have is a "plus" screwdriver. Is that OK? or would it mess things up?


That won't fit in the slot. It is not in there tight however, you could likely use a small knife to rotate them. They rotate about 90 degrees and then they can just pop out.

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Re: replacing radio lights in an 1800

Postby PastoT » Tue Mar 10, 2015 2:54 pm

I didn't need a screw driver for the bulbs them selves. By the way you might search out LED alternatives, they last forever and you can get them in a variety of colors (not that'll it will make much difference for the radio).
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Re: replacing radio lights in an 1800

Postby WingAdmin » Tue Mar 10, 2015 3:40 pm

PastoT wrote:I didn't need a screw driver for the bulbs them selves. By the way you might search out LED alternatives, they last forever and you can get them in a variety of colors (not that'll it will make much difference for the radio).


Exactly what I did on my GL1500. I had several of the radio lights burned out, I replaced them all with LEDs so I won't have to do it again.

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Re: replacing radio lights in an 1800

Postby ibdwingman » Sat Mar 21, 2015 10:41 pm

PastoT wrote:I didn't need a screw driver for the bulbs them selves. By the way you might search out LED alternatives, they last forever and you can get them in a variety of colors (not that'll it will make much difference for the radio).


Where can you get the led's?...all of my radio lamps are burnt out.

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Re: replacing radio lights in an 1800

Postby wing rider 2012 » Mon Mar 23, 2015 2:08 pm

I placed the 12 volt lamps on my bike with LED's, it's not a difficult job to do. Just remember that you will need to add a resistor to each LED you use, the value will depend on the color of the LED you order. I order my LED's from Part Express, they ship the resistor with the LED's. Here's the link: http://www.parts-express.com/cat/leds/1395
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Re: replacing radio lights in an 1800

Postby ibdwingman » Mon Mar 23, 2015 4:15 pm

did you use 3mm or 5 mm? would you mind telling me which part # you used?

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Re: replacing radio lights in an 1800

Postby wing rider 2012 » Tue Mar 24, 2015 9:54 am

ibdwingman wrote:did you use 3mm or 5 mm? would you mind telling me which part # you used?


The part number will depend on which color of led's you choose, on my Gl1800 I chose the amber led's. I ordered the 3mm, they will fit the holes for the lights snuggly. When you remove the 12 volt lamps you can install it led's directly in the hole, orientate the led leads to the pads on the circuit board, + lead to positive 12 volts and the - to ground, make sure you install the resistor in series with the negative lead and then solder it to the circuit board. The + lead will solder to the 12 volt + on the circuit board.
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Re: replacing radio lights in an 1800

Postby ibdwingman » Thu Mar 26, 2015 7:40 am

thanx for the info...but Im not sure about the resistor/soldering thing. I would hate to foul up the radio & end up replacing the whole thing.

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Re: replacing radio lights in an 1800

Postby Steve F » Thu Mar 26, 2015 8:42 am

ibdwingman wrote:thanx for the info...but Im not sure about the resistor/soldering thing. I would hate to foul up the radio & end up replacing the whole thing.

Don't worry about messing up the radio, as long as you have the resistor in SERIES with the LED, the worst case is it just won't light up probably due to the wrong polarity. If you get the polarity wrong, it just won't light up. If you forget the resistor, it'll fry the LED and you'll let the smoke out (all electronic devices require internal smoke to operate).
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Re: replacing radio lights in an 1800

Postby ibdwingman » Thu Mar 26, 2015 8:49 am

Thanx again. I would love to have a couple of pics of the finished product to be sure I'm on the right path if anyone has some.

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Re: replacing radio lights in an 1800

Postby CMReynolds1 » Thu Mar 26, 2015 9:24 am

Hey Steve F. It is very tough to get that smoke back in too!
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Re: replacing radio lights in an 1800

Postby wing rider 2012 » Thu Mar 26, 2015 10:26 am

It's really not that hard to do, when you remove the 12 volt lamps you will see two pads to where the lamps made contact, one pad is positive and the other is ground. Most LED's are polarized, when you look at the leads one lead is longer than the other, the long lead is the positive lead, another way to tell is by looking at the LED base, there will be a flat side on the negative lead side.

When I installed mine, I removed the 12 volt lamps and then applied solder to the pads, it doesn't take much, just a touch with the soldering iron and solder. This prepares the pads for your install of the led's, insert the led into the hole that the lamp came out of making sure you use the correct polarity on the led's, bend the positive lead of the led down to the pad and solder it into place and then cut off the excess lead. On the negative lead wrap one end of the resistor around the negative lead with a couple of wraps and solder into place, cut off the excess lead. Remember, it doesn't take a whole lot of solder, just a touch will do. The other end of the resistor will solder onto the negative pad. There you have it.

LED's are measured in Forward Voltage (Fv) and max current, the Fv varies depending on the color of the LED and the current anywhere from 20 to 50 Ma. If for example you want the leds at their brightest you would allow more current by reducing the resistance.
Example: Lets say you are using a LED with a Fv of 2.2V and max current rating of 40Ma. Your source voltage is 13.2 volts*. To get the max out of the led you would use a 330 Ohm resistor. I would recommend the leds operated somewhere in the mid point of their current rating, somewhere around 30 Ma. In this case you would use a 390 ohm resistor.
*I use 13.2 volts as a source because this is the typical voltage of a bike while running.

Here is a good web site for figuring out your resistance: http://led.linear1.org/led.wiz
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Re: replacing radio lights in an 1800

Postby Steve F » Thu Mar 26, 2015 11:40 am

CMReynolds1 wrote:Hey Steve F. It is very tough to get that smoke back in too!
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It's also extremely expensive too.
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Re: replacing radio lights in an 1800

Postby ibdwingman » Thu Mar 26, 2015 2:16 pm

thanx for the info. I think even I can understand that. I'm real good on mechanical, good on electrical (110V-220V) & minimal on electronics (audio & video stuff)

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Re: replacing radio lights in an 1800

Postby rybasg » Tue Aug 16, 2016 10:18 am

I would really like to do this, as I too have some burned out bulbs, but how the heck can you tell what the polarity is on the circuit board? I can't see any markings, and I would hate to do them backwards and then have to take it all apart again.

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Re: replacing radio lights in an 1800

Postby Rwilkerson » Wed Aug 17, 2016 11:02 pm

There is a service manual listed on this site http://goldwingdocs.com/Docs/Honda%20Go ... -6A1DB.pdf. On page 21 shows what is the Positive side (and the Neg side) this should simplify the install. For those who do not read electrical schematics the last pin on the picture is the positive just follow the line to the pad.

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Re: replacing radio lights in an 1800

Postby rybasg » Thu Aug 18, 2016 12:16 pm

I have the complete Honda service manuals in print and on CD. They don't help, as they never intended for you to install anything other than the stock incandescent bulbs where polarity doesn't matter.

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Re: replacing radio lights in an 1800

Postby Rwilkerson » Thu Aug 18, 2016 2:09 pm

rybasg wrote:I have the complete Honda service manuals in print and on CD. They don't help, as they never intended for you to install anything other than the stock incandescent bulbs where polarity doesn't matter.

If you go to the link I posted and page 21 it will answer all you questions as to "what is positive" the dark black line indicates positive all you will have to do is trace out that line which is clearly shown. Honda does not manufacture the radio so you will need to down load the panasonic service manual. Again here is the link: http://goldwingdocs.com/Docs/Honda%20Go ... -FCB1B.pdf




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