Yaesu FT-901DM Maintenance Service Manual page 63

SERVICING
FM UNIT INSTALLATION FOR FT-901DE/SD
The FM Unit operation for the FT-901DE and SD
models can be installed in a matter of minutes.
Remove the top cover of the transceiver, and re-
move the black cover of the circuit board rack
(left-hand side of the transceiver).
Install the FM Unit in the 22-pin connector. The
component side of the circuit board should be on
the side facing the VFO enclosure. Use the two
circuit board restraining clips to secure the board
in place, securing the clips to the main circuit
board rack with the two screws included with the
kit.
The positions of the alignment potentiometers of
interest can be found by referring to Fig. 2. 'Oo, ch os | oS (e)
vR901 VR903 vR902
Replace the circuit board cover, and replace the RSH TSE: (EVENS
top cover of the transceiver. Installation is now
complete.
| ae
Circuit board cover
(Remove)
|
"ay
ya
ras
Ao
— Top cover
(Remove)
FIG-2
Alignment potentiometers
T Restraining clip
|
FIG-4
FM UNIT
Component side