Chapter 6. Connecting the Power Supply to the Amplifier
If you are going to use the gray conduit to go from the supply to the amp you
must put all wires including the Yellow high voltage wire through the
conduit before you start this section. Fasten the gray conduit from the power
supply to the fan and feed all wires including the Yellow high voltage wire
out the fan.
Hooking up amp to supply is easy as 1 to 8. The terminal strip with 8
positions is located on the left rear of the RF decks left side looking at it
from the front. Number the positions 1 through 8 from top to bottom. Refer
to figure 1.
Please start with position no.1 at the top of the terminal strip. The power
supply has a purple wire. This is chassis ground to chassis ground. Strip off
3/16” of insulation from the end of the wire. Hook the purple wire to
position no. 1 Use the flat head screwdriver to tighten the terminal screw
holding the wire.
Look at position nos. 2 and. 3. These are your PTT. 12 VDC are present
here. Short these together to put the amp in the TX mode. To add user
control of the PPT remove the jumper from position no. 2 and 3 and add
your own control wires.
Look at position nos. 4 and 5. These are a pair connected directly to the
front panel of the amp. The High Voltage Turn on Switch is the only place
the brown and orange wires go. Strip off 3/16” of insulation from the end of
each wire. Connect the brown wire to position 4 and the orange wire to
position 5. This allows the high voltage to get turned on after a 90-second
filament and fan warm-up time.
Look at position 6. CAUTION: 6 is red, it is hot 120 VAC, and goes to the
fan and filament switch. It is live all the time and can shock you. Strip off
3/16” of insulation from the end of the wire. Connect the red wire to position
6.
Look at position 7. 7 is green and is the 120-volt return as well as chassis
ground. Strip off 3/16” of insulation from the end of the wire. Connect the
green wire to position no. 7.
