Question about Alpine Car Audio & Video
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Posted on Jan 02, 2017
SOURCE: no backlight on a cdm-7834
The only possible installation problem could be the illumination wire on the head unit. If this is hooked to a 12 lead it would dim the backlight. Try disconnecting the orange wire if it has one(I'm not sure if the 7834 had a dimmer lead). If that doesn't fix it the head unit will have to be serviced.
Posted on Sep 03, 2007
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