TB 9-4931-290-50
(6) Analyze recorded indications. If all indications are within specified limits,
proceed to paragraph 11. If error is approximately the same magnitude and polarity on all
ranges, perform b (1) through (10) below. If error is only on individual ranges, perform
b. Adjustments
(1) Set RANGE switch to 100 V and OUTPUT VOLTAGE controls to TEN0.00.
(2) Adjust R67 (DC LEVEL) (fig. 1 or 2) for a 100.0-V dc indication on multimeter (R).
(3) Set OUTPUT VOLTAGE controls to 10.00.
(4) Adjust R85 (DC LIN) (fig. 1) [R75 (DC LIN) (fig. 2) for TI with S/N below 900]
NOTE
Omit steps (5) through (9) for TI's with serial numbers below
900.
(5) Set MODE switch to DC NEG.
(6) Note multimeter indication and adjust R83 (LIN BALANCE) (fig. 1) to
eliminate half the error from 10 V (R).
(7) Adjust R85 (DC LIN) (fig. 1) for a 10 V indication on multimeter (R).
(8) Set MODE switch to DC POS.
(9) Repeat technique of (1) through (8) as necessary for best overall indications.
(10) Set RANGE switch to 100 V and OUTPUT VOLTAGE controls to TEN0.00.
(11) Disconnect resistant decade from TI.
(12) Measure and record TI output.
(13) Adjust resistance decade to 20 kilohms and reconnect to TI output.
(14) Adjust R48 (DC RESOURCE RES) (fig. 2) [R49 (DC SOURCE) (fig. 1) for TI
with S/N below 900] to obtain multimeter indication of value recorded in (12) above, minus
4.762 V (R).
(16) Set RANGE switch to 10 V and OUTPUT VOLTAGE controls to TEN.000.
(17) Adjust R51 (10 V DC) (fig. 1 or 2) for a 10.0 V indication on multimeter (R).
(18) Set RANGE switch to 1 V and OUTPUT VOLTAGE controls to .TEN000.
(19) Adjust R52 (1 V DC) (fig. 1 or 2) for a 1.0 V indication on multimeter (R).
(20) Set RANGE switch to 100 mV and OUTPUT VOLTAGE controls to TEN0.00.
(21) Adjust R53 (100 mV DC) (fig. 1 or 2) for a l00 mV (millivolt) indication on
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