Hi, I have an 80s Rega Planar 2 and it has developed a hum. After taking a look one of the tonearm wires to the cartridge has become disconnected from the connector spade. I’m struggling to find anywhere that is open for repairs as I’m in Berkshire and tier 4 restrictions have been in place. Would anyone advise trying to repair this myself bearing in mind I have no soldering experience? Or do I need to replace the tonearm (pricey)?