A few days ago, I was repairing a Sanyo cassette recorder, but the movement failed. I found that the movements of this series of Sanyo cassette recorders were the same, so I bought a scrapped M-X320K with the intention of repairing the cassette recorder.
I didn’t expect that this series sounded so good and suited my taste. I bought another M-X720K, but it was scarred and almost scrapped.
Because there is no manual for 320k, it cannot be repaired.