BMW K bikes (Bricks)

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1Back to top Go down   Instrument cluster lights Empty Instrument cluster lights Wed Jan 25, 2023 3:14 pm

brianpen

brianpen
active member
active member
I replaced the odometer gears on my 94 K75 and all went well. Also replaced the backlight bulbs with led's. Everything appears neat and tidy, and I was careful with the ribbon installation, but the backlight bulbs won't light; although the brake, abs, high beam bulbs all work at the turn of the key.
The backlights are supposed to work at the turn of the key, correct? Is there perhaps an easy explanation, or test I can do? Is there a particular connection that may be the culprit? 
If it were only one or two of the four led's I could understand a bad connection, but not all 4.

    

2Back to top Go down   Instrument cluster lights Empty Re: Instrument cluster lights Wed Jan 25, 2023 3:32 pm

duck

duck
Life time member
Life time member
Some LEDs are polarized. Try rotating them 180 degrees.

You can test many (not all)  12V LED bulbs with a 9V battery if you have one handy.


__________________________________________________
Current stable:
86 Custom K100 (standard fairing, K75 Belly pan, Ceramic chromed engine covers, paralever)
K75 Frankenbrick (Paralever, K11 front end, hybrid ABS, K1100RS fairing, radial tires)
86 K75C Turbo w/ paralever
94 K1100RS
93 K1100LT (x2)
91 K1
93 K75S (K11 front end)
91 K75S (K1 front end)
14 Yamaha WR250R
98 Taxi Cab K1200RS
14 K1600GT
http://www.ClassicKBikes.com
    

3Back to top Go down   Instrument cluster lights Empty Re: Instrument cluster lights Wed Jan 25, 2023 3:36 pm

Laitch

Laitch
Life time member
Life time member
Are you turning the key when it's parked in the dark? Smile


__________________________________________________
1995 K75 81,000 miles
Instrument cluster lights Usa-lo10
    

4Back to top Go down   Instrument cluster lights Empty Re: Instrument cluster lights Wed Jan 25, 2023 4:27 pm

brianpen

brianpen
active member
active member
Polarity was part of the equation. Also, I thought that the rim of copper was all that was needed, then realized that a tab of the copper needs to down into the socket opening. All is well. Thanks for the help.

    

5Back to top Go down   Instrument cluster lights Empty Re: Instrument cluster lights Wed Jan 25, 2023 4:46 pm

Laitch

Laitch
Life time member
Life time member
You saw the light! Hallelujah! Cool


__________________________________________________
1995 K75 81,000 miles
Instrument cluster lights Usa-lo10
    

6Back to top Go down   Instrument cluster lights Empty Re: Instrument cluster lights Wed Jan 25, 2023 5:18 pm

brianpen

brianpen
active member
active member
Now I'm so happy, no sorrows in sight! 
Thanks to forum members
I saw the light Very Happy

    

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