ABB PSTX370 Service Manual page 55

4. Remove thermal sensor cable and fan cables
from PCBA
1
Disconnect the thermal sensor cable from its
terminals on the PCBA using a long-nose plier.
2
Disconnect the four fan cables from their
terminals on the PCBA using a long-nose plier.
3
Pull out the thermal sensor cable, and the four
fan cables, from the cable inlets on the PCBA
bracket.
5. Remove PCBA from PCBA bracket
1
Gently loosen the PCBA from the bracket peg in
the upper right corner.
2
Gently pull the PCBA out of the bracket to
the right direction until loosened from the bracket
peg in the lower left corner. Dispose of expended
PCBA.
6. Place new PCBA on PCBA bracket
Note that rubber bushings shall be mounted on the
PCBA prior to assembly.
1
Position the bracket so that ABB:s logotype
appears upside down on the upper end.
2
Place the new PCBA on the bracket by sliding it
onto bracket from the right direction until attached
to the peg in the lower left corner.
3
Gently press the PCBA onto the bracket peg in
the upper right corner until firmly fitted.
7. Connect thermal sensor cable and fan cables
to PCBA
When reconnecting cables; read markings on the
PCBA bracket.
1
Thread the thermal sensor cable, and the four
fan cables, through the cable inlets on the PCBA
bracket.
2
Connect the thermal sensor cable to its
terminal on the PCBA.
3
Connect the four fan cables to their terminals
on the PCBA.
4
3
5
2
6
1
7
1
| Service Manual | Service PSTX470...570
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