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d)
By setting the HORIZONTAL MODE s w i t c h e s (§) to
B , the A s w e e p w a v e f o r m disappears, and the
intensity-modulation part on the A s w e e p trace line
is magnified on the C R T .
Fig. 19
N O T E : • Delayed s w e e p is impossible for 0 . 2 div.
from the A s w e e p start point.
• In the Start After Delay, increasing mag-
nification will cause delay jitters. In s u c h
a c a s e , use the triggered delay described
below.
2. Triggered Delay
Set the B S O U R C E s w i t c h e s @ to any of C H 1 to C H 4 .
(TRIG. C O U N T goes out.) T h e B s w e e p starts at the first
trigger pulse after the delay time set with the D E L A Y PO-
SITION (§) has passed. Set the trigger level of the B sweep
with the B L E V E L control @ .
Since the B s w e e p of triggered delayed s w e e p operation
starts at the first trigger signal after the delay time dis-
played on the C R T , the displayed delay time serves as
reference only. A " ? " is displayed posterior to D E L A Y
on the C R T to indicate to that effect.
T h o u g h t h e d e l a y t i m e , 2 0 0 / t s , i s s e t a t t h e p o i n t o f 2 d i v . , t h e t r i g g e r p o i n t
a f t e r it i s a t t h e p o i n t o f 4 . 3 d i v . ; c o n s e q u e n t l y , t h e p a r t f r o m 4 . 3 d i v . i s
i n t e n s i t y - m o d u l a t e d (for
m a g n i f i c a t i o n ) .
Fig. 20
3. TRIG COUNT Switch ( C S - 6 0 2 0 only)
The T R I G C O U N T switch is conveniently used for delayed
s w e e p of signals w h o s e number of pulses is already-
known s u c h as the video signal, digital signal, etc.
a)
Select A of the H O R I Z O N T A L MODE s w i t c h e s (§),
and set each s w i t c h and control knob for normal
w a v e f o r m observation.
b)
Set the H O R I Z O N T A L MODE s w i t c h e s to A INT B,
and select a channel to be observed (CH1 to C H 4 )
with the B S O U R C E s w i t c h .
c )
Activate the TRIG C O U N T switch (LED lights up) and
d e a c t i v a t e
" C O U N T " is displayed in the upper right of the C R T
B s w e e p
t r a c e line
and a count value is displayed following it.
d)
On completion of the above setting, rotate the D E -
L A Y POSITION control (§) to set the count value to
1 . T h e n , rotate the B L E V E L @ to display intensity-
modulation part on the C R T . If the A S L O P E and B
S L O P E are set to the same value, the start point of
the intensity modulation changes depending on set-
ting of the A L E V E L <§) and B L E V E L © , w h i c h shall
be set as follows:
N O T E : The trigger counter regards the B s w e e p trig-
ger point next to the A s w e e p trigger point
as " 0 " (not displayed) and the following B
trigger point a s " 1 " .
If the count value is set to 1 , the relationship
of these trigger points is a s follows:
i) A S L O P E : + , B S L O P E :
ii) A S L O P E : + , B S L O P E :
iii) A S L O P E : - , B S L O P E : +
iv) A S L O P E : - , B S L O P E :
t h e
c u r s o r
m e a s u r e m e n t
-
B t r i g g e r l e v e l
A t r i g g e r l e v e l
A t r i g g e r l e v e l
- B t r i g g e r l e v e l
-
- B t r i g g e r l e v e l
- A t r i g g e r l e v e l
•A t r i g g e r l e v e l
• B t r i g g e r l e v e l
B t r i g g e r l e v e l
A t r i g g e r l e v e l
- A t r i g g e r l e v e l
- B t r i g g e r l e v e l
-
B t r i g g e r l e v e l
A t r i g g e r l e v e l
- A
t r i g g e r l e v e l
- B t r i g g e r l e v e l
Fig. 2 1
m o d e ;
2 3
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