Disassembly/Reassembly Procedures
49
board shield assembly (41), alternating diagonally across the
shield. Remove the VOCON board shield assembly, with keypad
flex assembly (37) (models II and III only) and clips still attached,
from the casting.
10. Lift the VOCON board (44) up and away from the casting.
NOTE: If the radio is equipped with hardware encryption,
the encryption board (45) is attached to the back
side of the VOCON board via a 40-pin connector.
When the VOCON board is lifted out of the casting,
the encryption board is removed with it.
11. Lift out the 26-pin compression connector (46).
12. Using needle-nosed pliers, carefully unplug the coaxial cable’s
connector (52) from the transceiver board’s (48) surface-mount
connector.
13. With the front of the radio facing upward, disengage the clip (63)
that secures the upper left portion of the RF shield (47) by
inserting a thin, flat-bladed screwdriver between the clip and the
casting assembly (51) and prying the clip free. Then, release the
snap on the bottom left side and the two snaps on the right side
of the RF shield. Lift the shield out, with the clip still attached,
rotating it around its top edge.
14. Remove the rubber pad (71).
15. Lift the transceiver board (48) out of the casting assembly. Inspect
the casting to make sure that the thermal pad (58) is attached to
the casting. If the pad is attached to the transceiver board, remove
it from the board and discard it. Attach a new thermal pad to the
casting as shown in the exploded view.
16. Lift the B+ assembly (49) and B+ seal (50) out of the casting
assembly.
Housing Assembly 1. Referring to “Radio Disassembly and Reassembly” on page 48,
remove the housing assembly (2) from the radio.
2. To begin housing disassembly, remove the speaker retainer screw
(23).
3. Remove the speaker retainer (36).
4. Install the universal connector cover (5) (see page 43). This will
hold the universal connector in place when the controls flex is
removed.
Removing the controls flex without installing the universal
connector cover may compromise the universal connector.
5. Disconnect the controls flex (18) from the universal connector by
disengaging the spring tab on the backer from the catch features
on the housing.
6. Disconnect the controls flex’s (18) 22-pin connector from PTT
area of the housing assembly (2).
7. Referring to “Frequency Knob” on page 44 and “Volume Knob”
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