21 and f.22, Troubleshooting & repair, Caution – Lincoln Electric PRO-CUT 55 SVM140-A User Manual
Page 97
TROUBLESHOOTING & REPAIR
F-60
F-60
PRO-CUT 55
FIGURE F.22 – OUTPUT BOARD LEAD LOCATIONS
G3326 - [1] PRO-CUT 55 OUTPIUT
x40
J33
J32
x20
x4
x2
B21
B1
B2
J31
J30
OUTPUT POWER BOARD REMOVAL & REPLACEMENT (continued)
4. Using the 7/16” wrench, remove leads X4, X2
and B21 from the output power board.
5. Remove all plugs from the output power
board.
6. Remove leads X20 and X40 from the output
power board.
7. Using the phillips head screw driver, remove
the two screws from the lower left and right
corners of the output power board.
8. Using the 3/16” allen head wrench, remove
the four socket screws mounting the output
power board to the heat sink.
9. Carefully remove the output power board
from the heat sink.
Be sure to follow the recommended static-free
methods for handling printed circuit boards.
Failure to do so can result in permanent damage
to the equipment.
CAUTION