Re-flowing the solder?

[02audionoob]

The reason I asked is that in buying used audio equipment I occasionally get a component with a cold solder joint somewhere. I just figured there might be some simple home remedy.

I am probably among the faint of heart when it comes to poking around in classic Marantz gear, but I have twice run into components where the interconnects worked correctly only if under a constant pressure, such as can be caused by tucking the cable under or something like that. I've also had an occasion where a power light operated only when pressure is applied. If it was as simple as blowing heat on it, I might be willing to try it. I'm a little bit of a fraidy cat when it comes to poking a soldering iron in there, since I was never any good at Operation.