Copper Talk » Ask The Tech » General Technical Questions » Cobra 150 GTL DX backlighting stopped working..

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Author Message   Hdn9587 Junior Member Username: Hdn9587 Post Number: 10 Registered: 9-2006 Posted on Tuesday, October 23, 2007 - 8:36 pm:        My Cobra 150 GTL DX backlighting just stopped working one day The dimmer control still works the channel display Wondering if anybody has had a similar problem and what was the fix I would hate to take it out and send it in for service if it was something simple Thanks   Hotwire Senior Member Username: Hotwire Post Number: 2419 Registered: 1-2005 Posted on Friday, October 26, 2007 - 1:49 pm:        The way the cobra nightwatch display works is really neat. There is no lightbulbs or LED's. Not sure but there is some type of sensitive chemical or lighting film in the face plate. If you remove the front panel you will see a thin tab that inserts into the rear of the faceplate. This small tab supplys voltage to the nightwatch display. It is very thin and flimsy. If somebody was inside the radio and they was not careful it is possible one could knock this tab out of place. Especially if the faceplate had been removed and not carefully replaced. As far as I know nightwatch is pretty reliable and there is nothing to 'burn out'. It has to be an open circuit somewhere. Check the tab for voltage if you can reach it. Follow its circuitry, look for cold solder joints, broken traces or wires KEEP IT REAL! Kenny cef491(27.115lsb) 2sf491(27.555usb) Indiana

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