mcmurdo 36-001-001A, Руководство по обслуживанию

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C1 S-VDR service manual Issue 1 Page 16
4. . The battery and sea switch leads will limit the cone separation; unplug them
as shown and feed them back through the DSM.
5. Remove the large rubber gaskets (one white and one black) which form the
main body seals.
Bottom cone (battery)
The bottom cone contains the battery and the sea switch contacts. There are
no serviceable parts. If a fault develops or the battery expiry date is reached
then the unit should be replaced.
Remove the PCB section
Observe anti-static precautions. Unplug the two switches ON and TEST.
Remove the seven board mounting screws and withdraw the board, complete
with antenna from the top cone. Take care not to loose the foam pads locating
the antenna PCB in the top cone.
The PCB (EPIRB section) (36-030B) contains 3 PCBs:
S-VDR EPIRB PCB (36-040B)
S-VDR Antenna PCB (36-050B)
Reed switch PCB (36-052B)
Separating the 3 PCBs
The PCBs are joined by the electrical connectors (push fit) and the wedge.
The wedge is very tight and it may be necessary to heat the PCB up to 50C to
soften the plastic to ease removal.
Removing the switches.
The 2 off switches can be removed by undoing the switch boot using an 11mm
driver. The switches are located in the plastic and cannot rotate.