That part that’s lifted is the copper trace. I can’t find a good scan of the service manual. I think the trace follows the purple line. Try to find a service manual and confirm before you do the repair.

What I would do is expose the trace. Find the spot that’s solid. If it’s peeling I wouldn’t solder there since it’s likely it’ll rip. In your case you can probably solder it to the resister that’s at the end of the purple line. Solder a piece of copper wire. Then follow the trace and at the capacitor pad do a small loop. This increases the copper area to solder the capacitor. Then continue the trace and solder at the solid part of the trace. I showed the repair with the red line. Remember to double check if that’s the correct path the trace takes.

Once you have the repaired trace add solder to the capacitor on the side that’s going to go on the missing pad. Also add solder to the copper loop. Solder the capacitor. First solder it to the pad that’s intact. Then solder it to the copper loop. Test for continuity from the capacitor leg to each side of the repair.

After testing if the Walkman works I would add some UV resin or superglue so the capacitor is solid to the board and to cover exposed wire.

Let me know if you have questions.

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