GE Industrial Solutions ASTAT-CD Plus Solid-State Starters - Manual (Page 24)

ASTAT-CD Plus Service Instructions
24
Sizes U and V
Cover removal
NOTE: POWER MUST BE REMOVED
BEFORE SERVICING.
Step 1. Remove the front steel cover by removing the
6 Phillips screws (Figure 1).
Screws
Figure 1. Cover screw locations
Step 2. Remove the two 12-point plug-in terminal
connectors by inserting a flat-head
screwdriver between the terminal connectors
and the ASTAT-CD Plus cover (Figure 2).
Carefully release the terminal connectors
from pins (Figure 2) and remove the
connectors (with wiring) from the starter.
Carefully pull the terminal connectors
straight off the ASTAT-CD Plus starter.
Do not remove the wiring from
terminal connectors.
Cover
Terminal connector
Figure 2. Terminal removal
Step 3. Remove the plastic cover by using a flathead
screwdriver to depress and release the plastic
tab on each side of the plastic cover (see
Figure 2 in F, G, H and I section).
To replace the Logic Board
Important: Always handle boards by
edges and do not distort parts on board
Step 4. The top printed circuit board is the Logic
Board.
Step 5. To remove Logic Board, unplug the two
ribbon cables from the Logic Board.
Ribbon cable
Logic Board
Ribbon cable
Screw
Figure 3. Logic Board parts locations
Step 6. Remove the 4 corner screws holding the
Logic Board to the standoffs below the Logic
Board. Remove the Logic Board.
Step 7. Reassemble new Logic Board to the starter.
With the display on the Logic Board at the
upper left corner, place the board on the
standoffs and attach the Logic Board in the
reverse order as listed in steps 6 and 5 above.
Make sure the ribbon cable at the bottom of
the ASTAT is fully seated on both circuit
boards and that the ribbon cable will not
interfere with or touch the cover.
Step 8. Reassemble the plastic cover and the terminal
connectors by lowering the cover over the
boards. Carefully push down the cover until
the two tabs snap into place. It may be
necessary to push in slightly on the outside of
the lower plastic housing.