TB 9-6625-1958-35
NOTE
Do not remove TI covers unless required to gain access to
adjustments. Replace covers upon completion of adjustments.
Covers removed for extended periods of time will degrade
timing accuracy.
c. Energize equipment and allow at least 1 hour for equipment to stabilize.
CAUTION
Always deenergize power module before removing TI. Damage
to TI may result.
8. Marker Timing
a. Performance Check
(1) Position controls as listed in (a) through (c) below:
(a) MARKER (SEC) switch to 1.
(b) VARIABLE TIMING (OUT) control pushed in.
(c) NOT VARIABLE pushbuttons released.
(2) Connect frequency counter input to TI MARKER OUT using 50 Ω feedthrough
termination. If frequency counter does not indicate between 0.99999 and 1.00001 s
(0.9999995 and 1.0000005 s for option 1), perform b below.
(3) Repeat technique of (2) above for TI MARKER (SEC) switch settings listed in
Test
instrument
Frequency counter indications
MARKER
(SEC)
Standard
Option 1
switch settings
Min
Max
Min
Max
10
n
9.9999
ns
10.0001
ns
9.999995
ns
10.000005
ns
20
n
19.9998
ns
20.0002
ns
19.99999
ns
20.00001
ns
50
n
49.9995
ns
50.0005
ns
49.999975
ns
50.000025
ns
99.999
ns
100.001
ns
99.99995
ns
100.00005
ns
.1
199.998
ns
200.002
ns
199.9999
ns
200.0001
ns
.2
499.995
ns
500.005
ns
499.99975
ns
500.00025
ns
.5
s
s
s
s
2
1.99998
2.00002
1.999999
2.000001
s
s
4.9999975 s
5.0000025 s
5
4.99995
5.00005
s
s
s
s
10
9.9999
10.0001
9.999995
10.000005
s
s
s
s
20
19.9998
20.0002
19.99999
20.00001
s
s
s
s
50
49.9995
50.0005
49.999975
50.000025
PIN: 015199-001
