I figured it was about time to replace the electroluminescent EL backlight on my Pro-2006 scanner. I think there used to be a pictorial somewhere, but I couldn’t find it, so I decided to grab some pictures while I swapped in a new one. Click any image to enlarge.
First, remove the antenna and the 4 screws holding the case to the back of the radio. No need to remove the battery by the way, not sure what I was thinking…
With the top cover removed, unplug all the connection headers from the top of the circuit board. Flip the scanner over, remove the bottom cover, unplug the header from the bottom of the circuit board, then use a phillips head screwdriver and remove the braided jumpers from the frame.
To get the circuit board off, use your soldering iron to unsolder and bend out of the way the ground wire coming from the volume and squelch pot assembly. I used a pair of needle nose pliers to lift it off and over to the side after heating up the pool of solder it is in.
Now you can get to the display. Unsolder the two leads going to the circuit board. There will be some glue that you will have to remove that’s holding the back light in place. I just used a small flat bladed screwdriver to scrape it off, then you can slide the backlight out from behind the lcd panel. You can see the old backlight in the picture below. I had positioned a white piece of paper in it’s place so I could experiment with LED backlighting.
Here you can see the new EL panel I bought as a replacement. This is a Lumitek that I came across on Ebay for $6. I used the old backlight as a template and trimmed it to size with a pair of scissors.
Trimmed to size. This is actually the back of the EL panel, the other side is the part that illuminates. Don’t ask how I know this but lets just say that my first try at this I thought the EL panel was bad until I noticed a nice blue-green glow coming from inside the scanner. I installed it backwards…
Finally, reposition the circuit board back in the face, making sure to line up the sound squelch led. Replace the screws, solder the ground connection, and reverse the dis-assembly steps. You should have a nice new bright backlight for this classic scanner.