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Figure 2
3.
Referring now to Fig. 2, carefully unplug the rear
ribbon cable connector (blue arrow) and two (2)
coax connectors (turquoise arrows) from the
PCB shown in Fig. 1 by the red arrows.
4.
Carefully lift the brown color piece on the front
ribbon cable connector (red arrow) and remove
the ribbon cable connector.
5.
Remove the five (5) screws holding the MAIN-
UNIT PC board in place (yellow arrows). Retain
these screws to replace the PCB.
6.
Next, place the radio on its side opposite the mic
jack and carefully push up on the MIC/EAR jack
housing to remove the MAIN-UNIT PCB.
NOTE: The connector shown in the yellow
circle in Fig. 2 is connected to a three (3) pin
plug mounted in the chassis below the MAIN-
UNIT PCB. Take care when removing the PCB.
You will have to realign the plug and jack when
reassembling the radio.
7.
Note the location of the MuRata filter (white
arrow in Fig. 2) that will be removed to allow
installation of the OBF-817.
Figure 3
8.
To remove the MuRata filter from the PCB, CAREFULLY remove the solder from the five (5) points shown in
Fig. 3 and pull it off from the other side of the PCB. WARNING: Don't use too much heat or damage the
various SMT components located near these five points.
9.
Now, CAREFULLY remove the MuRata filter and place it aside since it is no longer needed for the FT-817.
