The second new 7000 I bought started to have screen problems.? It would show static but never cut off.? I send it back under warranty to Icom twice but it never misbehaved while there.? I got it back and it started it again after a day or so.? I called Icom and spoke to Dan, the repair supervisor, and asked him to send me a complete set of ribbon cables.? One of the 2 cables that plugged into the front of the PA board was the culprit.? One of the foils had de-laminated and pealed back when it was assembled.? 14 years later and it still works.
You might be able to reach in and push it on the stiffeners to see if there is a problem with a cable.? Normally, you have to de-solder the coax connectors and the finals to remove the PA board to get to either of those.? I made a thin pair of tweezers with rubber grippers to prevent damage.? There can't be much more than a 3mm gap for them so it will be tight to do what I did.? There are other cables that can cause this but these two are the most difficult.
Good luck,
Robert
