TB 9-6625-003-35
check if all other parameters are within tolerance.
NOTE
Unless otherwise specified, all controls and control settings
refer to the TI.
25. Equipment Setup
a. Remove protective cover from TI only if required to make adjustments or gain access
to test points. Replace immediately upon completion.
b. Connect TI to
autotransformer (A3), using adapter (B2).
c. Connect autotransformer to a
115-V ac
source and
adjust for a
115-V output.
d. Set POWER switch to AC and allow 15 minutes for warmup.
e. Set POWER switch to OFF and wait approximately 30 seconds. If meter pointer
does not indicate 2.5 on EXPAND scale, adjust mechanical zero adjustment screw clockwise
until meter pointer is to the left of 2.5 and moving upscale. Stop meter pointer on 2.5 mark
and turn adjustment screw approximately 15 degrees counterclockwise to free screw from
meter suspension. Repeat the adjustment if meter pointer moves.
f. Position TI controls as listed in (1) through (8) below:
(1) EXPAND switch to NORM.
(2) RANGE switch to 0 (zero).
(3) INPUT SELECTOR switch to XTAL 200Ω.
(4) GAIN control one-quarter turn from fully clockwise position.
(5) VERNIER control fully clockwise.
(6) BANDWIDTH control fully counterclockwise.
(7) POWER switch to AC.
(8) MTR DAMP switch to IN (rear panel).
NOTE
Some models do not have damping switch.
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