MultiSonic220 MIG-Dead Answer Key
Drill
Correct First Proof Step
- prove polarity connector, stripped-down base process setup, and plain MIG path before blaming the base machine
Acceptable Document Order
- MultiSonic220 measurement card
- MultiSonic220 parts substitution card
- MultiSonic220 board opening map only if the stripped-down machine still fails
Required Takeaways
- one healthy process is strong evidence against shared power-source failure
- spool-gun and other accessory branches must be bounded before internal repair
- flashing-panel history matters, but it should not override a clean process split
Failing Moves
- ignoring polarity connector proof
- blaming the base machine for a spool-gun-only complaint
- opening the machine before base MIG is proven
Passing Answer Summary
- A correct answer starts by proving the MIG-only path externally, strips the machine to a plain base setup, and only moves to internal maps if the stripped-down machine still fails.