Here is one possible problem of your 02 , your VCO or PLL has a problem, the freq for the PLL is unlock or not stable kaya the CPU cant lock into the PLL signal. Check around these two section easily you can get service manual for the 02's.
For the final i already repair a down final of the 02, heres the point, you need a high power /temp soldering iron, mine i use a hakko soldering station set to the highest temp around 480 degrees c. and for better view use a microscope for better view of the solder point, next is a very stable hand. This is the reason for these, the solder point is very narrow, one wrong move you will make the final dead already, you will know if the final is repairable view it from the microscope you will see a cut wire bonded on the gold part substrate. This wire is not soldered but spot welded, thats why when you successfully repair the final after prolong heat or use it will disconnect again. Because the original is wire bonded our repair is solder only. Its worth trying repairing it you will know the inside of the finals same with the rf power module of the mobile rig.Good luck