iOptron GEM45 Instruction Manual

Hide thumbs Also See for GEM45:

Main board and RA board

1. Remove the two screws and take off the cover

2. Pull out the RA board carefully.

3. Carefully disconnect the wire harness from the

RA board.

4. Remove the screws and then remove the motor

Instruction for GEM45 board replacement

December 10, 2020

Internal Use Only

Ver. 1.1

5. Disconnect the wires from the main board and

remove the main board carefully.

6. Put in a new main board and connect the wires.

7. Put the motor back and install the three screws.

Make sure the belt is properly tightened. If

necessary, adjusted the three screws to make

the belt with proper tension (it can flex about 3

mm when press the middle of the belt).

Table of Contents

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Page 1 Internal Use Only Instruction for GEM45 board replacement Ver. 1.1 December 10, 2020 Main board and RA board 5. Disconnect the wires from the main board and 1. Remove the two screws and take off the cover remove the main board carefully.
Page 2 Internal Use Only 8. Put in a new RA board and connect the wires. 2. Remove the three screws and remove the motor. Please pay good attention to the connections between the main board and RA board 3. Do the same as removing the main board, disconnect the wires and remove the DEC board.