How to ring a diode bridge?

Question

Do it yourself

I took a speaker (others) for repair with an obvious malfunction. And broke something.
The rectifier has half voltage, strong 50 Hz - all suspicion of a diode bridge.
In addition, on the tester, I burned the sound probe circuit a long time ago (the rest of the resistance ranges work).
What is the best way to determine if my guess is correct? It is advisable not to solder the diodes from the circuit.

Answer 1

Call not with a sound, but with an ordinary ohmmeter. The same eggs will be, only in profile. Call each diode individually.

Answer 2

Substitute a known-good bridge, or check with an oscilloscope.