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Page Title:
Sectionalization Test Using AN/UPM-137A-cont. |
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reference
(1) A10TPS (video enable delay).
(1) 3-6j
(2) A9TP4 (video enable output).
(2) 3-6i
(3) Al1TP1 (video shaper output).
(3) 3-6k
(4) A9TP3 (line drive enable output).
(4) 3-6i
(5) A10TP4 (line drive pulse).
(5) 3-6j
(6) A10TP2 (delay line pulses).
(6) 3-6j
(7) A10TP1 (delay line main gate input)
(7) 3-6j
(8) A11TP2 (comparison pulse shaper
(8) 3-6k
output).
(9) A10TP6 (read relay).
(9) 3-6j
(10) A12TP4(error blanking).
(10) 3-6i
b. Indications are
VERTICAL-CHAN A-VIDEO IN jack to
following test points in order given. Verify
that correct dc levels are present.
(1) A11TP6 (error detector output).
a None.
(1) 7 to 12 volts dc.
(2) A12TP3 (readout) . . . . . . . . . . . . . . . . .
b. None.
(2) 7 to 12 volts dc.
When REJECT indicator
is lighted.
c. Repeat a(2) through (10) above with test set
c. Indications should be the
MODE switch at C, 3/A, TEST, and 1
same as in a above.
respectively.
d. Set test set CODE switches to 7700 and
d. None.
MODE switch to 2. Set AN/UPM-137A
S I S generator SIF 1 CODER Code
switches to 7700.
e. Set AN/UPM-137A SIS generator SIF 1
CODER-FUNCTIONAL SEL switch to
I/P and test set FUNCTION switch to I/P.
8-36 (A9TP4).
Connect AN/UPM-137A oscilloscope VER-
TICAL-CHAN A-VIDEO IN jack to test
set A9TP4.
8-13 (A9TP4).
C O D E R - F U N C T I O N SEL switch to
EMER and set test set FUNCTION switch
to EMER. Observe Whether pulse is nor
g. Set test set FUNCTION switch to I P.
8-36 (A9TP4).
Observe whether pulse is normal.
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