1730–Series Theory of Operation
4–14
COMP SYNC
H SYNC
LIN SEL EN
LISEL
LIN STRB
PIXSTRB
H LIN SEL EN
COMP SYNC
H SYNC
LIN SEL EN
LISEL
LIN STRB
PIXSTRB
(HIGH)
(LOW)
a.
b.
Figure 4-5: Elements for line select timing: a) Line select off. b) 2-field line
select.
A one-field trigger can be used, in normal configured instruments, by pulling the
REMOTE 1LIN-1FLD input low to turn on Q821. Turning on Q821 shuts off
Q806 and allows C906 to discharge. The resulting low input on pin 19 of U535
switches the V SYNC pulse output to U535 pin 14 to trigger the Sweep
Generator at the field rate.
V TRIG is the field rate trigger signal enabling the Sweep Generator, which is
positive edge triggered. Field 1 or Field 2 sweep triggering is selected by the
FLD1/FLD2 control line from the processor. A positive edge is output at the
start of the selected field.
Содержание 1730 Series
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Страница 12: ...Contents viii...
Страница 17: ...Introduction and Specifications...
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Страница 32: ...1730 Series Introduction 1 14...
Страница 33: ...Operating Instructions...
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Страница 62: ...1730 Series Operating Instructions 2 28...
Страница 64: ...Service Safety Summary S 2 1730 Series B070000 Above...
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Страница 67: ...Installation...
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Страница 82: ...1730 Series Installation 3 14...
Страница 83: ...Theory of Operation...
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Страница 115: ...Checks and Adjustments...
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Страница 159: ...Maintenance...
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Страница 180: ...1730 Series Maintenance 6 20 3 Remove the board by slipping it through the front panel opening...
Страница 184: ...1730 Series Maintenance 6 24 Figure 6 8 Repackaging a 1730 Series instrument...
Страница 185: ...Options...
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Страница 189: ...Replaceable Electrical Parts...
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Страница 222: ...1730 Series Replaceable Electrical Parts 8 32...
Страница 223: ...Diagrams Circuit Board Illustrations...
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Страница 247: ...Replaceable Mechanical Parts...
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Страница 255: ...1730 Series Waveform Monitor FIG 1 EXPLODED VIEW A1 A3 A2 A3A1 A10 A11...
Страница 256: ...1730 Series B070000 Up...
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