TB 9-6625-2197-50
(19) Set control box RPT switch and PWR switch to OFF.
(20) Connect equipment as shown in figure 5, CONNECTION A.
(21) Repeat (2) and (3) above to select MODE 2 operation.
NOTE
Step (22) below consists of both SUM and DIFF pulses.
(22) Measure SUM and DIFF pulse widths (fig. 6, inset C). The first pulse must have
a pulse width between 0.7 and 0.9 s; if not, perform b (1) below. The second pulse width
will be between 0.7 and 0.9 s; if not, perform b (2) below.
(23) Measure the pulse spacing between the first and second pulse. Pulse spacing
will be between 1.8 and 2.2 s.
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