MAG211 Board Opening Map

This is the fast internal opening map for MAG211 once chart, gun, spool-gun, and drive-roll branches are already bounded.

Open Only After Proving

base plain-steel MIG baseline has been proven or ruled out
chart-correct setup has already been tried
spool-gun complaints are already separated from the base gun
clamp, polarity, and current path are already clean
plain-steel base MIG on chart-correct settings is already proven before any aluminum-branch blame

First Internal Targets

Board or internal group	Open first when...	Key connector or checkpoint	Best local file to open first
Gas-valve or control branch	feed is present but gas behavior is still dead or erratic	gas-solenoid branch around trigger action	`mag211manual.pdf` and workbook
Capacitor or output-smoothing branch	rough arc stays with the machine after chart and gun proving	output smoothness and ripple feel under load	workbook sheet `MAG211`
Feed-control branch	bare-wire feed is still unstable after external path proving	drive response with correct wire path	workbook sheet `MAG211`

Connector and Board-Family Reminders

Do not open the machine just because the chart was ignored on arrival. Correct chart and front-end proving still come first on MAG211.
Keep spool-gun-only complaints outside the chassis until base MIG is proven healthy.
Keep no-gas with healthy feed separate from no-feed complaints. They are not the same branch here.
Do not open the machine while chart-correct plain-steel base MIG is healthy and only the aluminum branch still fails.

External Parts Exit Paths

If the opening pass shows the complaint still follows the external gun, spool gun, or drive-roll branch, leave the board path and use the official ordering flow instead.
MAG211 parts category: official parts path
SpoolKing24D spool gun 07NS1000: official product page
U-groove aluminum drive roll 07000302: official product page

Stop Rules

Stop and go back to the external path if chart correction or a known-good base gun restores the arc.
Stop and go back to the external path if base MIG is healthy and only the spool gun still fails.
Stop and return to the full guide if gas, feed, and arc evidence still overlap after the first opening pass.

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