Jaycar 2M2 Vertical Trimpot 5mm Open Carbon Type RT4029

Your board spec says 2.2 megohms and you can't find that exact value anywhere without a two-week wait. This Jaycar 2M2 vertical trimpot is open carbon type, 5mm footprint, and it's the 2.2 MΩ part your schematic is asking for. No substitutes, no 'close enough.' You set the trim, verify the reading, and close the lid on that fault. Five dollars, done

• 2.2 MΩ resistance value for high-impedance board calibration
• 5 mm vertical through-hole footprint fits standard PCB pads
• Open carbon track type for smooth, repeatable trim adjustment
• Jaycar RT4029 — spec'd and stocked in Australia