Trigger View - Philips PM32671 Service Manual

TRIGGER VIEW

1.3.
Trigger view
Frequency response
Rise-time
Pulse aberrations
Deflection coefficients
Error limit
Trigger point
Time delay between trig. view via external
trigger input and vertical channels
Dynamic range
HORIZONTAL OR X-DEFLEXTION
1.4.
Display modes
I -
Trace separation
Main
MTB modes
Position range
Horizontal drift
Horizontal temp. coefficient
MTB time coefficients
Error Limit
Expansion (X MAGN pulled)
me-base
ti
Display of internal or external main time-base trigger
signal.
...
internal: DC
...
external: DC
Both in DC trigger coupling.
internal :
external : 5ns
Both in DC trigger coupling.
internal: 10% p.p. pushbutton MTB of S22 depressed.
external: 6% (< 8% p.p.1
internal: see Ch. A or B deflection coefficients.
external: 200mV/div.
internal : 10%
external : 3%
In screen centre 0.3 div.
+
-
and 8 div up toMHz.
MTB (main time-base)
MTB intensified
DTB (delayed time-base)
MTB and DTB in alternate time-base mode
EXT X delfection via MTB trigger source
Symmetrical vertical separation between MTB and DTB
of 5 div
Auto pp, Auto, Trig, Single
In Auto pp and Auto modes a bright base line is displayed
if no trigger signal is present.
In Auto pp the trigger level is adjustable between the max
and min value of the trigger signal.
In Auto mode the trigger level range is independent on the
trigger signal.
In SINGLE the NOT TRIG'D LED is on after reset of the
time-base and extinguishes after the start of the time-base.
+
and - 5 div from screen centre
0.5 divlh.
0.025 div1K.
...
0.5 sldiv in 1-2-5- sequence. Uncalihrated
continuous control between the steps. Operation
indicated by uncal LED.
3%. Measured over centre 8 div of screen.
1-3