Troubleshooting & repair – Lincoln Electric NA-5S User Manual
Page 127
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F-74
TROUBLESHOOTING & REPAIR
F-74
METER PC BOARD REMOVAL
PROCEDURE
1. Remove input power to the NA-5.
2. Using the 5/16" nutdriver open the
control box PC board access door.
3. Locate and unplug the meter PC
board that is to be removed. See
Figure F.11
4. Using the 5/16" nutdriver remove the
four PC board mounting nuts. See
Figure F.11
5. Carefully remove the meter PC
board.
Note insulation placement for reassem-
bly. Also make sure the plug on the
back of the PC board plugs into the
prongs on the meter when you
reassemble.
DIGITAL METER AND METER PC BOARD REMOVAL AND REPLACEMENT
NA-5
FIGURE F.11 METER PC BOARD, MOUNTING NUTS AND PLUG
MOUNTING
NUTS
PC BOARD
PLUG PRONGS
SPEED METER BOARD
METER BOARD
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