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TM-499 Page 23
9 Main Rectifier SR2
Changes ac weld current to dc.
10 Suppressor VR1/R2
Protects SR2 from overload.
11 Stabilizer L1
Smooths weld output current.
12 Shunt
Provides weld current feedback to
control board PC1.
13 HF Filter Board PC2
Protects unit from high frequency.
14 Positive (+) And Negative (−)
Weld Output Terminals
Provide weld output.
AC Or DC Control Circuits
Mechanical Coupling
Weld Current Circuit
Magnetic Coupling
Positive (+)
Weld Output
Terminal
Negative (−)
Weld Output
Terminal
Electrode Work
14 14
Main Rectifier
HF Filter
SR2
Board
PC2
Voltage Feedback Signal
Current Feedback Signal
Shunt
9
12
13
Suppressor
VR1/R2
10
Stabilizer
11
L1
Voltage Feedback Signal