c. Install the two screws securing the mixer
assembly firmly in place.
d. Mount the LEVEL control knob on its shaft, and
tighten the setscrew.
e. Resolder the two leads to pins 1 and 2 on A1A5
f. Resolder the three leads to the three mixer
A2A1A3, and A2A1A4
To remove any of the three identical oscillator
subassemblies A2A1A2, A2A1A3, or A2A1A4 (fig. 4-4)
through c below.
a. Unsolder and tag the leads connected
oscillator subassembly connector J2 and pin E1.
b. Loosen the setscrew securing the output level
c. Remove the three front panel screws and two
washers which secure the oscillator subassembly to the
front panel. Remove the oscillator subassembly from
the test set.
A2A1A2, A2A1A3 and A2A1A4
To disassemble an oscillator subassembly (fig. 8-13)
after removal from the test set, proceed as given in a
through d below.
a. Remove the screw (1) and two washers (2)
securing the cover (3). Remove the cover.
b. Remove the metallic standoff (4).
c. Remove the three screws (5) and six flat
washers (6) sewing the oscillator subassembly (7).
Unsolder and tag all leads. Remove the oscillator
subassembly from the case (8).
a. Secure the cover of the mixer assembly firmly
d. Disconnect and tag the leads attached to the
in place with the two screws and four washers.
crystal unit (9). Remove the two nuts (10) and four
washers (11) to remove the crystal unit (9) and crystal
b. Position the mixer assembly in its proper place,
socket clip (12) from the case (8).
at the rear of the test set front panel. Align the
assembly with its mounting holes in the front panel.