Maintenance checklists

A periodic inspection can follow the same sequence each time:

1. environment and signs of unusual moisture or heat;
2. dust, dirt and residues;
3. corrosion or surface changes;
4. loose screws, jacks and components;
5. cables, power supplies and batteries;
6. moving parts and controls;
7. essential functions;
8. rarely used functions;
9. case, bag and internal materials;
10. maintenance log update.

You do not need to dismantle the item to complete the checklist. The goal is to identify what has changed and decide whether routine care is enough or technical inspection is needed.

Before selling or storing an item for a long period:

• perform a functional check;
• clean it without hiding defects;
• photograph condition and serial number;
• record modifications, repairs and maintenance;
• check batteries and power;
• gather original parts and accessories;
• inspect the case and contact materials;
• avoid unnecessary last-minute cosmetic work.

For a sale, this documentation supports a more accurate description. For storage, it creates a baseline against which the item can be compared when it returns to use.