Just picked up a Cobra 25 LTD 40 channel @ local yard sale, dirt cheap, has awesome Mod + Ears. Works great except no signal or light in display. Is it simple fix ?
555 :drool:
555 :drool:
Just picked up a Cobra 25 LTD 40 channel @ local yard sale, dirt cheap, has awesome Mod + Ears. Works great except no signal or light in display. Is it simple fix ?
555 :drool:
more than likely the bulb is just burned out and the meter is problably sticking. pull the meter out and clean it and there is 2 screws on the pivot point for the needle. sometimes you can just move one of the screws just a little and the meter will work unless the spring is shot on it. one other way to check the meter is take a analog ohm meter and touch it across the 2 terminals on it and reverse the leads back and forth and the meter will swing as you move the ohm meter laeds back and forth.
If you do this, put the VOM on a high resistance scale. The more resistance in line, the less current through the meter movement. A typical Rx1 range resistor is just a couple of ohms. Use the highest range your meter has.
And don't "reverse the leads back and forth". All you're trying to do is see if the movement has continuity.
if you put a analog ohm meter on a needle gauge it will sweep the needle on the radio meter . this way you will know if it works or not. that is why you reverse the leads so it will sweep the radio meter if it will work.
just like checking a capacitor. you reverse the analog meter leads and it will show if the cap is good or not.
a digital ohm meter will not sweep the radio meter to see if it functions. just check ohms and if the spring is bad it will still show ohms but not work.