Again...Thank You! I was searching for ICOM Repair and found your earlier video and tried just touching on of those connectors under the hatch and it worked. I asked if you had a follow up but decided to search for one and here it is, and I will give this a try. Sometimes screws work themselves loose just from small temperature swings over years. Thanks for this update!
Good information Kevin. My ICOM IC-R71E had a similar problem. Partially solved by doing this. Will be trying it again. This radio looks simpler to operate than the later R-71. The tightening procedure was done some years back.
The issue is highly likely to be a voltage regulator dry joint. If you look at the main PCB, bottom right corner, you'll see a large heatsink which carries the AF amplifier and a voltage regulator. Try wiggling this heatsink and I believe you'll find the receiver is off and on again. Turn off and unplug the radio from the power. Remove the circuit board - it's only held in with 6 or 7 screws and will tilt forward once they're removed.You may need to unplug just one or two leads depending upon how tightly they were routed when the radio was assembled but by no means do you need to unplug everything. Looking at the underside in the region of that heatsink you'll see a small gap through the board and three quite hefty soldered joints. That's the voltage regulator. Resolder the three joints and replace the board. Hopefully all will be fine now. This is an issue because of constant expansion/contraction in that area as the audio amp and regulator provide a few Watts of heat.
Spot on, same issue with mine, 3 solder joints and back on, although it does still skip up the ham bands occasionally, so may be this issue again or another dry joint i have to investigate
