Brand

Keyue

Brand represented in training and service manual sources for ZX7, NBC, WSME and LGK machines.

Brand/platform role

Keyue is treated as a platform reference. Many inverter welders are sold under different labels but share board families, chips and fault patterns.

Why it matters

Brand represented in training and service manual sources for ZX7, NBC, WSME and LGK machines.

Repair-data focus

Typical diagnostic path

Brand / platform name
Model family
Board family
Chip and circuit function
Fault symptom
Repair case