Pcb21 (Wk-4917) - Thermal Arc ARCMASTER 300S Service Manual

12
300/ 400TS and 300/ 400S M A I N TEN A N C E
3. 14 PC B 21 ( W K - 4917)
1) Remove the Side Panel. [Reference page : 11-1]
2) Remove the six screws from the S1 and remove the six terminals.
1
2
2
1
3) Remove the four screws and then open the Rear Board.
1
1
2
1
1
4) Disconnect the one connector. Remove the two screws and one ground terminal.
Remove the PCB21 (WK-4917).
3
2
1
CN1
2
12 – 17