TB 9-6625-2340-24
(20) Adjust A4A1R14 (fig. 21) for a multimeter indication of 2.000 0.010 V dc (R).
(21) Set attenuator No. 2 to 120 dB.
(22) Adjust A4A1R32 (fig. 21) for a multimeter indication of 0.000 0.001 V dc (R).
(23) Press TI keys as listed in (a) through (f) below:
SHIFT.
(a)
ATTEN.
(b)
SCALE LOG.
(c)
SHIFT.
(d)
SCALE LOG.
(e)
REFERENCE LEVEL, 50, dBm.
(f)
(24) Set attenuator No. 2 to 40 dB.
(25) Connect multimeter HI to A4A1TP1 (fig. 21). Record multimeter indication.
(26) Press TI REFERENCE LEVEL, 60, dBm keys.
(27) Adjust A4A1R2 (fig. 21) for a multimeter indication 0.100 0.001 V dc greater
than the indication recorded in (25) above (R).
(28) Press TI REFERENCE LEVEL, 70, dBm keys.
(29) Multimeter indication should be 0.200 0.002 V dc greater than the indication
recorded in (25) above. If not, readjust A4A1R2 (fig. 21).
(30) Press TI REFERENCE LEVEL, 90, and dBm keys.
(31) Multimeter indication should be 0.400 0.004 V dc greater than the indication
recorded in (25) above. If not, readjust A4A1R2 (fig. 21).
(32) Press TI 2-22 GHz key.
(33) Set TI LINE switch to STANDBY.
(34) Remove cables attached to the A3 digital storage cage.
(35) Replace digital storage cage cover.
(36) Reconnect cables to digital storage cage removed in (34) above.
(37) Replace TI top cover.
(38) Set TI LINE switch to ON.
(39) Remove attenuator No. 2 from equipment setup.
35