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TROUBLESHOOTING & REPAIR | ||
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PC BOARD(S) REMOVAL AND REPLACEMENT (Continued)
PROCEDURE
Before starting the following procedure,
refer to the PC Board Troubleshooting Procedures at the beginning of this section.
1.Remove the input power to the NA- 5.
2.Using the 5/16" nutdriver open the control box PC board cover.
3.Carefully remove the molex type plugs (and leads) connected to the PC board that is to be removed.
4.Using the phillips head screwdriver, remove the PC board mounting screws.
5.Carefully remove the PC board.
REPLACEMENT PROCEDURE
1.Using the phillips head screwdriver and mounting screws carefully posi- tion and install the new PC board.
2.Reconnect the molex type plugs (and leads) into the new PC board.
3.Close and secure the access door.
