All connectors have number on the socket and on the plug, so it is quite easy to check if one has been swapped.
Also check solders, especially CB541(7) on the main board.
Also check solders, especially CB541(7) on the main board.
Sony DTC-1000ES/55ES/59ES PCM-2700/7010/7030/7050, Luxman KD-117, Denon DTR-2000, Sharp RX-100, Panasonic SV-DA10, Aiwa HD-S1 XD-001/S260/S1100, Yamaha DTR2, Samsung DT-850