TB 9-6625-2074-24
a. Performance Check
(1) Connect multimeter to -15 V dc test point located on main amplifier board
(fig. 5). If multimeter does not indicate between -14.9 and -15.1 V dc, perform b (1) below.
(2) Connect multimeter to +15 V dc test point located on main amplifier board
(fig. 5). If multimeter does not indicate between +14.9 and +15.1 V dc, perform b (2) below.
b. Adjustments
(1) Adjust R143 (fig. 5) for a -15.0 V dc multimeter indication (R).
(2) Adjust R140 (fig. 5) for a +15.0 V dc multimeter indication (R).
15. Final Procedure
a. Disconnect and deenergize all equipment.
b. Annotate and affix DA label/form in accordance with TB 750-25.
CALIBRATION PROCESS FOR
BOONTON, MODEL 92C
16. Preliminary Instructions
a. The instructions outlined in paragraphs 16 and 17 are preparatory to the calibration
process. Personnel should become familiar with the entire bulletin before beginning the
calibration.
b. Items of equipment used in this procedure are referenced within the text by common
name as listed in table 2.
c. Unless otherwise specified, verify the results of each test and, whenever the test
requirement is not met, take corrective action before continuing with the calibration.
Additional maintenance information is contained in the manufacturer's manual for this TI.
d. When indications specified in paragraph 18 are not within tolerance, perform the
power supply check prior to making adjustments. After adjustments are made, repeat
paragraph 18. Do not perform power supply check if all other parameters are within
tolerance.
e. Unless otherwise specified, all controls and control settings refer to the TI.