Yaesu FT-901DM Maintenance Service Manual page 64

COOLING FAN INSTALLATION
(OPTION for FT-901SD)
The FT-901SD cooling fan may be used with other
models of Yaesu equipment. Installation is easily
accomplished in minutes.
Hold the fan up to the rear panel in its proper
location. Determine the proper length of the two-
wire power lead to the motor. Solder the leads to
the 2-pin plug supplied with the fan. The 4-pin
plug is not needed for FT-901SD installation.
Install the fan onto the rear panel of the trans-
ceiver, as shown in the drawing. Insert the power
lead from the fan into the fan socket on the rear
panel.
Cooling fan
SERVICINC