If the original R55 has blown, i.e no current is able to pass through it, then the piggy backed R55 will restore the circuit as intended.
If the piggy-backed one has blown as well I'd be concerned as to what is causing this to happen!
If the original R55 has blown, i.e no current is able to pass through it, then the piggy backed R55 will restore the circuit as intended.
If the piggy-backed one has blown as well I'd be concerned as to what is causing this to happen!