The Roland SP-404SX is a digital instrument featuring sampler and pattern sequencer functions. Recording and playback work without issue, but the LINE OUT connection is not working well, requiring some adjustment of the angle, etc. Is there anyone who can repair it? - Model: SP-404SX - Brand: Roland - Connection Terminals: LINE IN, LINE OUT, MIDI - Functions: Sampler, Pattern Sequencer It was used with batteries. There is no power cord. Thank you for viewing.