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A P O S I T I O N C o n t r o l
(14)
F o r adjusting the v e r t i c a l position of the C H 2 w a v e f o r m w h e n displayed on
the C R T screen.
(15)
V O L T S / D I V C o n t r o l
T h e v e r t i c a l attenuator C H 2 . I t is operated i n the same w a y as the C H I
V O L T S / D I V control.
D u r i n g X - Y operation, i t becomes the X - a x i s attenuator.
V A R I A B L E C o n t r o l
(16)
F o r fine adjustment of C H 2 v e r t i c a l a x i s s e n s i t i v i t y . I t i s operated i n the
same w a y as the C H I V A R I A B L E control.
D u r i n g X - Y operation i t is used for fine adjustment of X - a x i s s e n s i t i v i t y .
(17)
A C - G N D - D C S w i t c h
F o r selecting the C H 2 v e r t i c a l a x i s input s i g n a l coupling mode. I t is o p e r a t -
ed i n the same w a y as the C H I A C - G N D - D C s w i t c h .
D u r i n g X - Y operation, it becomes the X - a x i s input s w i t c h .
I N P U T J a c k
(18)
T h e C H 2 v e r t i c a l a x i s input j a c k .
D u r i n g X - Y operation, it becomes the X - a x i s input j a c k .
(19)
P H T H M H
M O D E S w i t c h
F o r selecting the v e r t i c a l a x i s operation mode.
C H I
: F o r d i s p l a y i n g the C H I input signal on the C R T screen.
C H 2
: F o r d i s p l a y i n g the C I I 2 input s i g n a l on the C R T screen.
A L T
: S w i t c h e s between C H I and C H 2 input signals for each sweep
and displays them on the C R T screen.
C H O P :
F o r d i s p l a y i n g C H I and C H 2 input signals one after the other
on the C R T screen, irregardless of sweep and at a n o c c u r -
rence rate of about 150kHz.
A D D
: F o r d i s p l a y i n g combined waveform of C H I and C H 2 input
signals on the C R T screen. H o w e v e r , w h e n C H 2 i s set at I N V ,
the difference between C H I and C H 2 w i l l be displayed.
Alternate (ALT) and Chop (CHOP) Modes:
When u s i n g these modes during dual trace operation, the display
w i l l be divided up according to t i m e .
I n the chop mode, each channel w i l l be subdivided according to
time w i t h i n each sweep. N o r m a l l y , t h i s k i n d of measurement i s
c a r r i e d out w i t h signals of either slower sweep rates from 1 m s /
div or low repetition rates where flicker i s quite noticeable.
I n the alternate mode, each channel w i l l be displayed one
the other as soon as one sweep has been made. Therefore, each
channel display appears m u c h clearer. N o r m a l l y , a faster
is employed.
after
sweep
11
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