TB 9-6625-2163-24
(3) If multimeter does not indicate between 4.9 and 5.1 V, perform b (1) below.
(4) Disconnect equipment.
(5) Set multimeter function for mA DC and AUTO-RANGING.
,
(6) Connect multimeter negative lead to A3TP2 (fig. 2) and positive lead with 10
1 W resistor to A3TP1 (fig. 2).
(7) If multimeter does not indicate between 380 and 420 ma, perform b ( 2) below.
b. Adjustments
(1) Adjust A3R24 (fig. 2) until multimeter indicates between 4.9 and 5.1 V dc (R).
(2) Adjust A3R3 (fig. 2) until multimeter indicates between 380 and 420 mA (R).
21. Power Supply
NOTE
Do not perform power supply checks if all other parameters are
within tolerance.
a. Performance Check
(1) Set multimeter function for VDC and AUTO-RANGING.
(2) Connect multimeter to A14TP3 (fig. 2) and chassis ground. If multimeter does
not indicate between 148 to 152 V dc, perform b below.
(3) Connect multimeter to A13TP4 (fig. 2) and chassis ground. Multimeter will
indicate between 25 and 31 V dc.
(4) Connect multimeter to A13TP3 (fig. 2) and chassis ground. Multimeter will
indicate between 11 and 13 V dc.
(5) Connect multimeter to A13TP1 (fig. 2) and chassis ground. Multimeter will
indicate between -11 and -13 V dc.
b. Adjustments. Adjust A14R8 (fig. 2) for multimeter indication of +150 V dc.
22. Final Procedure
a. Deenergize and disconnect all equipment. Reinstall metal shield over circuit card
assembly and outer case on TI.
b. Annotate and affix DA label/form in accordance with TB 750-25.