What is this component?

[SK33]

This is from an AKAI AM-U22 amplifier. There are quite a few of these items (circled in red) on the board and the circuit diagram shows them as a jumper link. Note that the one circled is splitting.
Is this a jumper or something else?

If this is some type of jumper what is the go with this design?

 

[wiseoldtech]

Likely a jumper - measure the other ones, if they read "0", problem solved.

 

[avtech]

Zero ohm resistor (in other words, a link)

 

[SK33]

Thanks for the replies.
I didn't know about 0 ohm resistors until your replies. Have done some research and understand their use now.
All my tools are at another place 100 kilometres away and won't be going there for a couple of weeks so I am unable to test the bad resistor at present. Would it be reasonable any to say that the bad resistor could read any value?

 

[MAAC0]

It's a link and I think there are some which act like small fuses when overheat.