- Remove the Q-Card.
- Use a soft pencil eraser to wipe the golden contact plate carefully until shiny.
- Re-insert the card ensuring the 'TOP' text is oriented correctly.
Source: Q — 6b50d7d5_WALDORF_Q16CLASSIC_ENG.raw (manual)
Symptoms this guide addresses
Source: Q — 6b50d7d5_WALDORF_Q16CLASSIC_ENG.raw (manual)