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STEP
OBJECTIVE
INPUT VOLTAGE
TV signal from TV pattern
generator to input A (B)
Sine-wave signal IOkHz,
ampl. 120mV to input A
and CAL signal to input
Sine-wave signal, derived
from mains freq., ampl.
4.6.2.
Trigger sensitivity
Sine-wave signal freq.
INTERNAL
to input A
Sine-wave signal freq.
4.6.3.
Trigger sensitivity
Sine-wave signal freq.
EXTERNAL
to inputs A and EXT (X5)
Sine-wave signal freq.
4.6.4.
Level range and
Sine-wave signal ampl.
triggering slope
input A
SETTINGS
-
Depress TV of
S20
-
Adjust A (B) AMPL/DIV to
div. sync. pulse amplitude
- Depress A (B) of S23
- Depress A (B) of S1
-
- Depress A and B (COMP) of S23
-
B
of
Depress ALT
- Depress A
of S1
- Depress Band EXT (LINE) of S23
(B)
- AMPL/DIV to 0.2V
- Adjust generator to 0.5 div.
trace height
-
-
Adjust generator to 1.5 div.
trace height
- AMPL/DIV to 50mV
- Depress EXT of S23
-
Decrease amplitude of input signal
- AMPL/DIV to 0.1V
- Decrease amplitude of input signal
-
- Depress TRIG of S3
-
Depress TRIG VIEW of S1
- L E V E L R 6 0
- Depress LF of S20
-
LEVEL R 6 0
-
- AMPL/DIV to 20mV
-
Depress AUTO PP of S3
-
LEVEL R6
R EQU I R EM ENTS
Check for stable triggering on TV frame
pulses a t MTB TIME/DIV settings 0.5s/div.
...
...
Both input signals (that have no time
relation) well triggered displayed (both
input signals must overlap each other)
Well triggered display
Signal triggers
a t
trace height of
0.5 div.
Signal triggers a t trace height of
1.5
Signal is well triggered
a t
an amplitude
1 OOmV (2 div trace height)
Signal i s well triggered a t an amplitude
8 div., trigger
Trace is triggered over
point on positive slope
Trigger point on negative slope
Triggered signal over the complete
LEVEL range
a
I
I
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