TB 9-6625-2340-24
(60) Remove jumper from between A20TP5 and A21TP2 and reconnect 8 cable (gray)
to A11J1 (fig. 7).
(61) Press TI 2-22 GHz key.
(62) Connect TI RF INPUT to synthesized signal generator No. 1 RF Output.
(63) Press TI keys as listed in (a) and (b) below:
(a) CENTER FREQUENCY, 4, and GHz keys.
(b) FREQUENCY SPAN, 80, and MHz keys.
(64) Set synthesized signal generator No. 1 for an output frequency of 4 GHz at an
output level of 10 dBm.
(65) Press TI MARKER PEAK SEARCH key.
(66) Alternately press TI MARKER PEAK SEARCH key and adjust A16R72GAIN1
(fig. 3) for a marker frequency indication of 4.00000 GHz on TI display.
(67) Press TI keys as listed in (a) and (b) below:
FREQUENCY SPAN, 240, MHz.
(a)
MARKER PEAK SEARCH.
(b)
(68) Alternately press TI MARKER PEAK SEARCH key and adjust A16R71GAIN2
(fig. 3) for a marker frequency indication of 4.00000 GHz on TI display.
(69) Press TI keys as listed in (a) and (b) below:
(a) 2-22 GHz.
(b) CENTER FREQUENCY, 5.82, GHz.
(70) Change synthesized signal generator No. 1 output frequency to 5.82 GHz.
(71) Adjust A19R43 (fig. 6) fully counterclockwise.
(72) Press TI FREQ STOP, 10, GHz keys.
(73) Adjust A19R43 (fig. 6) clockwise until the two signals displayed almost coincide
(just barely discernable as separate signals).
(74) Press TI FREQ STOP, 12.5, GHz keys.
(75) Change synthesized signal generator No. 1 output frequency to 12.5 GHz.
(76) Two almost coincident signals should be displayed.
If not, slightly readjust
A19R43 (fig. 6).
(77) Change synthesized signal generator No. 1 output frequency to 5.8 GHz.
(78) Press TI keys as listed in (a) and (b) below:
(a) CENTER FREQUENCY, 5.8, GHz.
(b) FREQUENCY SPAN, 450, MHz.
(79) Adjust A19R32 (fig. 6) for best shaped single signal on TI display.
(80) Press TI 2-22 GHz key.
(81) Remove jumper between A12TP2 and A12TP3.
(82) Replace cover over A12 through A16 pc boards.
(83) Replace TI bottom cover.
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