TB 9-4920-469-24
(71)Short the clips together. (Ensure they are properly shorted together).
(72)The SYS RES will now be tested.
(73)Set the RANGE switch to 200Ω.
(74)Press PTS and hold until the TI display settles.
(75)The TI displays a value less than 2.00 Ω.
(76)Turn the SYS RES knob fully clockwise (CW).
(77)Press and hold in the PTS button until the TI display stabilizes.
(78)The TI displays a value greater than 25.00 Ω.
NOTE
If the TI fails the test, an error message displays. The TI
displays a message (DBLR CAL ENT/ESC) to continue to the
(79)Press CONT (ESC) to skip the test.
a. Deenergize and disconnect all equipment.
b. Annotate and affix DA label/form in accordance with TB 750-25.