Calibration—475
e. A D JU ST—Geometry, R1390, for no more than 0.1
division curvature of the time markers.
b. A D JU ST—Delay-Line Driver Centering, R385 for
reading of 0 volts on both sides of the delay line.
f. Remove the time markers and check the trace at top
and bottom graticule lines: no more than 0.1 division
bowing or tilt.
10. Check BEAM F IN D Operation
11. Adjust CH 1 Switch Balance
6. Z-Axis Compensation
a. Vertically center the trace.
a. Connect X I 0 probe from Test Oscilloscope to
TP1366.
b. A T IM E /D IV to 0.05 jus.
b. A D JU ST—CH 1 Var Bal, R110, for no more than 2
divisions trace shift when rotating the CH 1 V A R control
through its range.
c. Connect A +G ATE to External Trigger input of Test
Oscilloscope.
c. A D JU S T—CH 1 Gain Switch Bal, R135, for minimum
trace shift when switching between 2 m V and 5 m V.
d. A D JU ST—C l 353 for optimum square corner on
positive step, 1 volt display of signal.
d. Check CH 1 U N C A L light.
12. Check Probe Indicator Lights
V E R T IC A L SYSTEM C A LIB R A TIO N
a. Connect X 10 probe to CH 1 input.
7. Adjust Vertical Output Bias
b. Check that the left light goes out and the right comes
on.
a. Connect a 200 MHz sine wave to CH 1 from the
High-Frequency
Constant-Amplitude
Signal
Generator
(067-0532-01).
c. Repeat for CH 2.
b. A D JU ST—Output Bias, R488, for maximum signal
deflection.
13. Check CH 1 and 2 AC-GND-DC Switches
14. Adjust CH 2 Switch Balance
8. Adjust Vertical Shield Volts
a. Vertically center the trace.
a. Vertically center the trace.
b. Using DC Voltmeter, measure voltage at each CRT
vertical deflection plate. Add together and divide by two.
b. A D JU ST—CH 2 Var Bal, R210, for no more than 2
divisions trace shift when rotating the CH 2 V A R control
through its range.
c. Connect DC Voltmeter between TP1395 and ground.
c. A D JU ST—CH 2 Gain Switch Bal, R235, for minimum
trace shift when switching between 2 m V and 5 m V.
d. A DJU ST—Vertical Shield Volts, R 1395, for a reading
equal to that calculated in step 8-b.
d. Check CH 2 U N C A L light.
9. Adjust Delay-Line Driver Centering
15. Adjust CH 1 and 2 Position Centering
a. Using DC Voltmeter, monitor the sides of the delay
line until readings are equal while adjusting the CH 1
a. Both V O L T S /D IV to 20 m V,
POSITION.
both AC-GND-DC to AC.
®
5-15
Summary of Contents for 475
Page 6: ...475 475 Oscilloscope ...
Page 20: ......
Page 46: ......
Page 151: ...A B C D E F G Fig 7 4 P 0 A4 Vertical Mode Switch circuit board ...
Page 152: ...n m m m 1 t siumm c ii im ...
Page 154: ...Diagrams 475 A B C D E F G ...
Page 155: ...GRID LOCATOR Fig 7 8 P O A3 Vertical Preamp circuit board ...
Page 157: ...Diagrams 475 ...
Page 158: ...GRID LOCATOR 2 3 4 5 6 7 8 9 1 10 11 1 12 Fig 7 10 P 0 A3 Vertical Preamp circuit board ...
Page 160: ...Diagrams 475 GRID LOCATOR Fig 7 11 A5 Vertical Output circuit board ...
Page 163: ...Diagrams 475 GRID LOCATOR Fig 7 12 P O A8 Trigger Generator And Sweep Logic circuit board ...
Page 167: ... 415 OSCILLOSCOPE B T R IG G E R G E N E R A T O R g B TR IG G E R GEN ER A TO R ...
Page 168: ...Diagrams 475 GRID LOCATOR ...
Page 172: ...SWEEP G E N ER A TO R S ...
Page 175: ...TIM IN G HORIZONTAL DISPLAY SWITCHING ...
Page 177: ...A 011 HORIZONTAL AMPLIFIER 8 l j k J Ll J Ol Z o N C O X U 1 C L O o v O o _J V v P O in r ...
Page 179: ... 476 OSCILLOSCOPE ...
Page 180: ...POWER SUPPLY ...
Page 182: ...CRT CIRCUIT ...
Page 185: ...C A L IB R A T O R A N D F A N C I R C U I T 4 C A LIB R A TO R FAN MOTOR C IR C U IT ...
Page 189: ......
Page 190: ...4 T 475 OSCILLOSCOPE FIG 1 FRO NT PANEL ...
Page 191: ...475 OSCILLOSCOPE FIG 2 MAIN FRAME ...
Page 199: ......
Page 200: ...FIG 3 RIGHT SIDE l 475 OSCILLOSCOPE ...
Page 201: ...V S X O t l B O T T OVJ 8 8 ...
Page 209: ......
Page 210: ...5 ...
Page 211: ...4 4 75 O S C ILLO S C O P E FIG 5 CAB IN ET ...
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Page 241: ... 1 I R I II9A po S IT I o n f i n e I R l 130 PAGE 4 OF 5 R 1234 Ml 9 91 9 473 ...