Fist Mic Assembly; Telephone Handset Assembly - Simrad RD68 Service Manual

Offer up the front panel to the chassis and, ensuring that the seal is still
correctly located, fit the front panel. Refer to drawing No.E03847 and
onto each of the four No.6 x 1/2" Pan Head Screws 200005, fit a M3.5
Nyltite Washer 200253. From the rear, fit these screws through the
chassis and into the front panel.
tightening the screws.
3.3

Fist Mic Assembly

Refer to Drawing No. E03161 and fit the PTT Grommet E03143 into the
web in the front case ensuring that it is correctly seated. From the end of
the Cable Assembly E03175 strip and remove the outer insulation for
15mm. Cut off the Blue ,Green, Orange and Black wires, (not used),
flush with the end of the outer insulation. Strip 5mm of insulation from
the ends of the Red and White wires, twist and sleeve the screen and tin
the ends. Pass the end of the cable up through the bottom hole in the
front case, apply a small quantity of Hellerman Sleeving Oil to the cable
and slide on Cable Grommet E03141. Pull the cable and grommet
through together, until the grommet is fully home, ensuring that the flat on
the head of the grommet lays against the inside of the case, then pull
cable back through grommet by approximately 100mm. Wipe off any
excess sleeving oil from the cable. Solder the cable connections to the
PCB and position the PCB assembly onto the 2 mounting pillars. Route
the cable into the case, pulling out any excess wire, until the PCB and
cable lay neatly into the case. Ensure the PTT Key hits the push switch
before fixing the PCB assemble into the case using 2 screws (200036).
Into the groove around the outside of the Rear Case E03133 fit a Case
Seal E03136 ensuring it is pushed fully home. Fit the PTT Key E03134
so that the spring leg in the centre of the key with a guide either side,
faces out, and the peg on the other side of the key faces into the case
front. Fit the rear case onto the front using washer (200257) and screw
(200023) and tighten firmly.
3.4

Telephone Handset Assembly

Refer to Drawing No. E03162 and fit the PTT Grommet E03143 into the
side wall of the front case ensuring that it is correctly seated. From the
end of the Cable Assembly E03175 strip and remove the outer insulation
Screw on the front panel, fully
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