To use this Studer Vista 9 M2 QS Digital Audio Mixing Console, first, connect it to the provided correct power supply. As the redundant Vista computer won't boot, you'll rely on the redundant meter bridge computer for redundancy features. Don't expect the built - in Touch Monitor to function, so plan your operations accordingly. When it comes to the left endcap with cosmetic damage, it doesn't affect the console's functionality but handle it carefully to avoid further damage. For maintenance, keep the console in a clean and dry environment. Regularly check the power supply connections to ensure stable operation. If you notice any new issues, it's advisable to consult a professional technician.