1730–Series Checks and Adjustments
5–30
A1 POWER SUPPLY BOARD
1. 5 V
a.
Connect the DMM negative lead to TP1 (GND) and the positive lead to
W1 (+5V).
b.
ADJUST – R99 (+5V ADJ) for +5.0 V
"
0.5V.
2. Adjust CRT Bias
a. Turn the INTENSity control fully counterclockwise.
b. ADJUST – R58 (CRT BIAS) so that the display is just extinguished.
c.
Set the INTENSity control to desired level.
3. Adjust Geometry, Focus and Astigmatism
a. Adjust – R45 (GEOM) for 35V
"
1V at pin 1 of J3.
b. Select CH–B INPUT.
c.
Set the FOCUS control on the front panel so that it is approximately at
the center of its rotation.
d. ADJUST – R11 (CENTER FOCUS) and R49 (ASTIG) for the most
clearly-defined multiburst display.
4. Adjust Trace Rotation and Geometry
a. Select CH–A INPUT.
b. ADJUST – the front-panel TRACE ROT potentiometer for a level trace
across the CRT’s 0 IRE line (0.3 V line for PAL).
A3 MAIN BOARD
5. Adjust On-Board Regulated Power Supplies
NOTE
.
a. Connect the voltmeter ground lead to one of the rear-panel ground lugs
and the active lead to the –11.8 V test point. See Fig. 5-8.
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 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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