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ExyCol Profile
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Date Registered: 09-2006
TOTAL POSTS: 116
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Re: Interior Light Noise...


Since the lights dim and stuff, theres obviously some electronics behind it. I wouldn't be suprised if those electronics are located near the bulb and this is what you are hearing. Its been a while since I looked at the circuits that did dimming and stuff, but usually theres a component that mounts against a heatsink that provides the switching of the power, and these can sometimes vibrate or make electrical noise if they have been knocked about a bit or have come off their heatsink. If it is on the way out, wait for the pop and the escaping of the magic smoke that does all the work. Can be quite entertaining!
15/Oct/2006, 1:22 pm Link to this post Send Email PM   Send Private Message
 
Revhead Kev Profile
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Date Registered: 10-2006
Location: Mona Vale, Sydney, AUSTRALIA
TOTAL POSTS: 5812
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Re: Interior Light Noise...


Nice to hear someone else knows about the magic smoke ExyCol.

I had a project once where I put the chip in the socket the wrong way ...
BIG pop, lost the smoke and the chip didn't work after that. emoticon

I agree with you. Probably just the voltage chopper doin' it's stuff to dim the lamp.

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Kev X450(c) T30 Guru
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21/Oct/2006, 8:29 am Link to this post Send Email PM   Send Private Message Blog
 


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