Possibly. Open it up and play some audio, measuring whether there is AC voltage on the speaker wires, similar voltage to the left side. If there is, the speaker is probably blown.
If there is not, you can trace the audio circuit backwards from the speaker, measuring for the AC signal, where it stops in the signal path.
If it uses a chipamp, you might find that it is easier to use a currently produced product rather than hunting down old stock (which might even be counterfeit) and if it has a different pinout, using jumper wires from the PCB to the pins on the new chip. If it needs wires, try to keep them as short as possible.