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Maintenance and Service
Heater Switch
Assembly
Replacement
5-20
MIE ADR-1500 Instruction Manual
Use the following procedure to replace the heater switch assembly
5–8).
1. Turn the instrument OFF. Remove the AC plug from the bottom of
the instrument.
2. Unfasten the two captive hardware and swing cover down on the
power/com assembly.
3. Disconnect the battery cable from J6 or J8 from the power
communication board.
4. Unplug the connector from board "HEATER SW".
5. Use needle nose pliers and squeeze the sides and push switch out of
cover.
6. Snap the new replacement switch into cover housing (see
Make sure the 1 is facing left and the 0 is facing right. Refer to the
"ISO" view in
Figure
7. Connect wire harness "lug end" to the tope 2 or bottom 2, but not one
of each. Connect red wire to gold terminal and black wire to silver
terminal.
8. Connect the other end of the wire harness to "HEATER SW" J17 on
the board.
9. Replug the power by following steps 1 to 3 in reverse order.
5–9.
(Figure
Figure
5–9).
Thermo Fisher Scientific
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Troubleshooting
