1. Unsolder the wire from the small key jack on the rear panel.
2. Locate the two standing capacitors (15pf
and 33pf) near the relay and RF choke. Unsolder and remove the wire from the tops of the capacitors. Separate and remove the
33pf capacitor leaving the 15pf in place.Resolder the standing end of the 15pf capacitor to the adjacent pad on the board.
This pad also connects to a wire from the rear panel S0239 connector (Radio).
3. Remove the standing 33 ohm resistor
(ora-ora-blk) and wire located directly behind the relay. This resistor connects a RF choke back to the oscillator board.
NOTE: Some units may only have a wire without a 33 ohm resistor soldered to this point. In that case remove the wire.
4.
Unsolder and remove the wire from the oscillator board connected to the ferrite transformar wire. This connection also has
a standing capacitor connected to the transformer wire. Remove the capacitor and solder the loose transformer wire to ground.
NOTE: Newer 250/350V models have a large yellow capacitor connected to the oscillator board, and grounding the transformer
wire is no longer necessary. In this case simply unsolder and remove the large yellow capacitor (marked 2200K) connected to
the oscillator board.
5. Locate the white block resistor and RF choke behind the meter. Unsolder and remove
the 10 ohm resistor (brown-blk-blk) from the top of the 30K resistor (ora-blk-ora) beside the RF choke.
6. Unsolder
the wire from the outer terminal of the blue pot. Resolder this wire to the opposite and inner terminal on the blue pot. The
outer terminal should now be left empty.
7. Locate the wire soldered to Pin 1 of the Power switch (red lens). Unsolder
the grounded end of this wire, and resolder it to the short trace hole protruding out from under the AM push switch (green
lens). This trace runs along behind the AM switch and connects to pin 2 of the switch .
8. Unsolder and remove the
oscillator board if desired.
