TB 9-6625-2340-24
(17) Connect multimeter HI to A16TP9 and LO to A16TP7 (fig. 3).
(18) Press TI SWEEP SINGLE key.
(19) Adjust A16R62 RAMP OFFSET (fig. 3) for a multimeter indication as close to
0.000 V dc as possible.
(20) Repeat steps (18) and (19) until requirement is met.
(21) Press TI keys as listed in (a) through (g) below:
SWEEP SINGLE.
(a)
START FREQ, 2.5, GHz.
(b)
STOP FREQUENCY, 4.9, GHz.
(c)
SHIFT, MKR REF LVL.
(d)
SAVE, 1.
(e)
STOP FREQ, 2.51, GHz.
(f)
SAVE, 2.
(g)
(22) Connect multimeter HI to A19TP2 and LO to A19TP3 (fig. 6).
Figure 6. A19 board.
(23) Press TI RECALL, 1.
(24) Press TI RECALL, 2.
(25) Repeat (23) and (24) above while monitoring multimeter.
(26) The difference in multimeter indications for RECALL, 1 and RECALL, 2
should be 1 mV dc. Multimeter indications will be approximately 8 V dc.
(27) If necessary, adjust A19R19 (fig. 6) while alternating between RECALL, 1 and
RECALL, 2 so that the difference in multimeter indications is 1 mV dc (R).
(28) Press TI keys as listed in (a) and (b) below:
STOP FREQ, 22, GHz.
(a)
SAVE, 3.
(b)
(29) Press TI RECALL, 1 keys.
(30) Press TI RECALL, 3 keys.
(30) Repeat (29) and (30) above while monitoring multimeter.
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