Check how this set has been designed to open out, there is even a slot type hinge which allows you to pull the sets front face out from the main body and fold it open. This is great, as the set is stable and can be inspected. The Yaesu 757gx was not like this at all!
Carefull inspection with a magnifying glass, soon showed me a break where this Siemans capacitor was installed. Its not a genuine part? its number is Siemens 470up (T) 40v 85209 85c the case is further marked V6.
The capacitor prooved to require re soldering on both terminals, note, use a low power soldering iron, the one I used was just 16 watt, probably still on the high side. The soon to be repaired, Philips SBC 320 rechargeable soldering irons 5 watts is probably a better choice?
Sound? no not yet but with the Siemens capacitor repair, the speaker is now live and there is a low scratching sound from the speaker but no broadcast or marine band reception. At least I now know that the squelch and audio knobs do at least still work, I used a dash of very light spray oil on them and I am not sure this is a good idea but it worked on the FRG7700!
How hard can this be.