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2. Disconnect the 2-way microphone socket block from the audio distribu-
tion board.
3. Remove the three M4 nuts that retain the microphone to the fascia.
4. Fit new microphone by reversing the above procedure. Ensure that the
sealing gasket is fitted properly between the microphone base and the fascia.
5. Re-connect the 2-way socket block and re-install cover.
6. Test unit for proper operation after replacement is complete.
C. Gooseneck Microphone Replacement.
1. Loosen the four M6 fixing screws from the cover and open the unit right
to left.
2. Disconnect and remove the 2-way microphone socket block from the
audio distribution board.
3. Unscrew the gooseneck microphone assembly from the front cover and
withdraw the cable.
4. Fit new microphone by reversing the above procedure. Ensure that the
sealing washer is fitted properly between the microphone base and the enclosure.
5. Reinstall and connect the 2-way socket block and re-install cover.
6. Test unit for proper operation after replacement is complete.
D. Handset Replacement.
1. Loosen the four M6 fixing screws from the cover and open the unit right
to left.
2. Disconnect and remove the 4-way handset socket block from the audio
distribution board.
3. Unscrew the handset gland from the front cover and withdraw the cable.
4. Fit the new handset by reversing the above procedure. Ensure that the
sealing washer is fitted properly between the handset gland and the enclosure.
5. Reinstall and connect the 4-way socket block and re-install cover.
6. Test unit for proper operation after replacement is complete.
E. Potted PCB Assembly Replacement.
1. Loosen the four M6 fixing screws from the cover and open the unit right
to left.
2. Disconnect the 8-way input socket block from the audio distribution
board.
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Summary of Contents for ez1 echo
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