TB 9-6625-2151-35
(4) Set calibrator for a -6.9 V dc output. Multimeter indication will not change.
(5) Set calibrator for a 6.9 V dc output.
(6) Press REV pushbutton.
(7) Adjust R73 RCV HOLD (fig. 3) until multimeter indicates 24 mA (R).
(8) Repeat (4) above.
(9) Adjust calibrator for a 50 V dc output. Multimeter will indicate less than
26 mA.
(10) Press NOR pushbutton. Multimeter will indicate less than 26 mA.
12. Distortion
a. Performance Check
(1) Connect TI left TRMT/RCV 310 to audio analyzer INPUT HIGH using 600 Ω
feedthrough termination.
(2) Position controls as listed in (a) through (f) below:
(b) Press DISPLAY key to select TRMT.
(a) Press NOR pushbutton.
(c) Press SET UP TRMT 600 Ω pushbutton.
(d) Press MEASUREMENT MEAS key to select LEVEL FREQUENCY.
(e) Press ←, STEP UP, STEP DOWN, and → keys until TI right display
indicates 85.000 kHz.
(f) Adjust OUTPUT LEVEL control until left display indicates 0.0 dBm.
(3) Set audio analyzer to measure frequency. Audio analyzer will indicate between
84.996 and 85.004 kHz.
(4) Press IMPULSE NOISE DISPLAY F2 1004 key.
(5) Set audio analyzer to measure distortion in dB and input to floating. Audio
analyzer will indicate ≤ -50 dB.
b. Adjustments. No adjustments can be made.
a. Performance Check
(1) Connect calibrator OUTPUT HI and LO to TI left TRMT/ RCV 310.
(2) Press pushbuttons and keys as listed in (a) through (d) below:
(a)
DISPLAY key to select RCV.
(b)
REV pushbutton.
SET UP TRMT 600 Ω and RCV 600 Ω pushbuttons.
(c)
(d)
MEASUREMENT MEAS key to select P/AR.
CHANGE 1 13
