If the 15mm wire is the only thing that failed I don't think it affected the low-voltage electronics.
Are you interested in attempting a DIY fix/repair?
For example, with your digital camera you should see a purple glow from an active Infrared LED.
The lettering on the yellow relay, suggests it is 5V, so I'd bet there's a 5V DC power supply; should be fairly simple to confirm 5V is present. Etc..