TIG200PACDC Board Opening Map

This is the fast internal opening map for TIG200PACDC once torch, gas, and pedal branches are already bounded.

Open Only After Proving

simple DC TIG baseline is already proven or ruled out
gas regulator and hose path are already proven
pedal or remote branch has already been simplified and checked against the expected resistance family
local control has already been checked with the remote isolated

First Internal Targets

Board or internal group	Open first when...	Key connector or checkpoint	Best local file to open first
Remote and control branch	the complaint follows current control or pedal response more than base output	pedal-branch response and control behavior	workbook sheet `TIG200PACDC`
AC-versus-DC mode branch	DC TIG is healthy but AC TIG still fails	mode-specific branch separation	`TIG200PACDCmanualsimple version.pdf` and workbook
General TIG-only output branch	stick stays healthy while TIG still fails after externals are proven	TIG-only branch after gas and pedal proving	workbook sheet `TIG200PACDC`

Connector and Board-Family Reminders

Do not treat expected display behavior like a digital-preset fault.
Keep gas and pedal branches outside the chassis until known-good substitutes are proven.
Use DC TIG first, then AC TIG, before mixing process results together.
Do not open the machine while remote-isolated local control still points back to the pedal branch.

External Parts Exit Paths

If the opening pass shows the complaint still follows the gas or remote-accessory branch, leave the board path and use the official ordering flow instead.
TIG200PACDC parts category: official parts path
Gas regulator branch 07000510: use the official parts path above.
Gas hose branch 072611120: use the official parts path above.

Stop Rules

Stop if the complaint follows one pedal only.
Stop if DC TIG is healthy and only AC remains faulty.
Stop if local control is healthy with the remote isolated and only the pedal branch still fails.
Stop and return to the full guide if gas, AC, and pedal evidence still overlap after the first opening pass.

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