Pcb5 (Wk-5551); Pcb6 (Wk-5549) - Thermal Arc ARCMASTER 300S Service Manual

300/ 400TS and 300/ 400S
3. 5 PC B 5 ( W K - 5551)
1) Remove the side cover. [Reference page : 11-1]
2) Remove the PCB6 (WK-5549). [Reference page : 12-11]
3) Remove the two screws and three connectors. Remove the PCB5 (WK-5551) from the PCB3 (WK-
5548).
3. 6 PC B 6 ( W K - 5549)
1) Remove the side cover. [Reference page :11-1]
2) Disconnect the six connectors.
3) Remove the three screws and five connectors. Remove the PCB6 (WK-5549) from the PCB5 (WK-5551)
and PCB7 (WK-5550).
12
M A I N TEN A N C E
CN21
CN9
CN8
CN18
CN30
CN31
CN32
CN17
CN1
CN20
CN27
CN32
CN30
CN31
12 – 11