47
7. Using caution, disconnect the
TEMPERATURE CONTROL BOARD
from the
MAIN
CONTROL BOARD
. Apply force perpendicular to the plane of the board;
do not
lift
from one end. Set the
TEMPERATURE CONTROL BOARD
aside.
8. On
the
MAIN CONTROL BOARD
, disconnect the harness wires from
CONNECTORS J1
and
J2
.
9. Remove the five
HEX SPACERS
and the five 5/16 inch
HEX BOLTS
.
10. Remove the
GREEN GROUND WIRE
.
11. Remove the
KEY PAD GROUND LEAD
.
12. Remove two screws that fasten the
HEAT SINK
to the front panel.
13. Lift the board slightly and disconnect the
KEY PAD RIBBON CONNECTOR
from
J4
.
14. Apply heat sink compound to the
HEAT SINK BRACKET
.
15. Position the gray insulator on the solder side of the new
MAIN CONTROL BOARD
and
reconnect the
KEY PAD RIBBON CONNECTOR
to the
J4 CONNECTOR
.
16. Verify that the five ¼ inch
SPACERS
are lined up with the
MOUNTING STUDS
. Set
the new
MAIN CONTROL BOARD
in place.
17. Tighten the two screws to the
HEAT SINK BRACKET
.
18. Reconnect the
KEY PAD GROUND LEAD
.
19. Reconnect the
GROUND WIRE
.
20. Reconnect the harness wires to
CONNECTORS J1
and
J2
. Ensure that all connectors
are properly positioned and secure. Verify that no pins are visible.
21. Ensure that the board to board connectors are properly positioned. Snap the
TEMPERATURE CONTROL BOARD
onto the
MAIN CONTROL BOARD
. Verify that no
pins are visible and the board is secure.
22. Replace the nylon washers. Reinstall the three ¼
″
screws. Use a Phillips head (+)
screwdriver to tighten the screws.
23. On the
TEMPERATURE CONTROL BOARD
, reconnect the harness wires to connectors
J101
,
J102
,
J103
and
J104
. Ensure that all connectors are properly positioned and
secure. Verify that no pins are visible.
24. Reinstall the hinged front panel and secure in place with the three screws previously
set aside. Use a Phillips head (+) screwdriver to tighten the screws.
25. Close the door of the shaker.
26. Reconnect the
POWER
CORD
to the electrical outlet.
New Brunswick Scientific Co., Inc.
User’s Guide
Artisan Technology Group - Quality Instrumentation ... Guaranteed | (888) 88-SOURCE | www.artisantg.com
