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F-39
TROUBLESHOOTING AND REPAIR
F-39
POWER MIG 255C
7. When re-installing the control PC board
carefully secure board to mounting
standoffs.
8. Install all plug connectors previously
removed from the control PC board.
9. Install the tool tray and close the side
panels.
4. Ensure a static electricity grounding
strap is used before handling the con-
trol PC boards.
5. Carefully remove the control PC board
from the mounting standoffs.
6. Lift the control PC board straight up and
out from the machine.
FIGURE F.11 — CONTROL BOARD MOUNTING.
PC CONTROL
BOARD
TOOL
TRAY
NOTE: TOP COVER SHOWN
REMOVED FOR CLARITY.
MOUNTING
STANDOFF
CONTROL PC BOARD REMOVAL AND REPLACEMENT (continued)
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