TRIPLE-TRACE APPLICATIONS
The sensitivities of channel 1 thru channel 3 are calibrated
and each channel has 6 0 MHz band width. (For C S - 1 0 4 5 ,
4 0 MHz) The trigger signal of channel 3 can be obtained
from its preamplifier.
This unit can be used not only for external synchronization
but also for checking triple-trace at a time.
Application
1: Checking logic signal timing.
2. Monitoring video signals.
3. Measuring audio signal gain and phase characteristics.
The details of the logic signal timing checking are described
below.
Logic signal timing indication
Control setting
Vertical MODE: TRI
HORIZ MODE: A
S O U R C E : C H S
To obtain stable synchronization, synchronize with the
longest period channel (in this case, CH3).
Main
sweep
Delayed
sweep
OBSERVATION OF THE START PORTION OF THE
IRREGULAR WAVEFORM
To observe the start portion of the irregular waveform,
magnification of the start portion of the waveform can be
made with the DELAY TIME ZERO.
Procedure;
1. Apply the signal to INPUT jack and set the vertical
MODE to the channel to be used and adjusting the
various controls for a normal display.
2. Use the A S W E E P TIME/DIV and HOLDOFF controls to
adjust the display such that a number of cycles of
waveform is observed. Next, set the B TRIG MODE to
DELAY = 0.
3. Set the HORIZ MODE to A L T or B and use the • POSI-
TION and T R A C E SEPARATION controls to adjust the
display such that the display is easily observed.
4. The observation of the start portion of the waveform
can be made to set the B SWEEP TIME/DIV to as fast a
setting as possible consistent with observation.
For time measurement, calculate from the B SWEEP
TIME/DIV setting.
Fig. 3 9
In the above application, when the HORIZ MODE control is
set to A L T , the main and delay sweep waveforms are
displayed on the C R T at a time. The portion in which the in-
tensity is modulated is enlarged to enable easy checking
Fig. 4 0 .
Main and delay sweep waveforms (magnified by 10 times)
Control setting
Vertical MODE: TRI
S O U R C E : C H 3
HORIZ MODE: A L T
B TRIG MODE: AFTER DELAY
Fig.
4 1
3 0
Fig. 4 0
Summary of Contents for CS-1045
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