Calibration—475
PART I—PERFORMANCE CHECK
Introduction
The following procedure is intended to be used for
incoming inspection to determine the acceptability of
newly purchased or recently recalibrated instruments. This
procedure does not check every facet of the instrument's
calibration; rather it is concerned primarily with those
portions of the instrument which are essential to measure
ment accuracy and correct operation. Removing the instru
ment dust cover is not necessary to perform this procedure.
All checks are made from the front panel.
Outline for Part I—Performance Check
V E R T IC A L SYSTEM CHECK
1. Check Beam Finder Operation
Page 5-6
2. Check Channel 1 and 2 Gain Switch
Page 5-6
Balance
3. Check Channel 1 and 2 Variable Volts/
Page 5-6
Division Balance
8. Check Channel
1
and 2 Deflection
Page 5-7
Accuracy
9. Check Channel 1 and 2 Variable V olts/
Page 5-8
Division Range
10. Check Alternate Mode Operation
12. Check Vertical Amplifier Bandwidth
T R IG G E R SYSTEM CHECK
14. Check A Triggering
Page 5-9
15. Check B Triggering
Page 5-10
16. Check A Normal Mode Operation
Page 5-10
17. Check Single Sweep Operation
Page 5-11
18. Check Trigger View Operation
Page 5-11
H O R IZ O N T A L SYSTEM CHECK
19. Check Variable Time/Division Range
Page 5-11
20. Check Timing Accuracy
Page 5-12
21. Check Delay Time Accuracy
Page 5-12
22. Check Delay Time Jitter
Page 5-13
23. Check Mixed Sweep Timing Accuracy
Page 5-13
24. Check X Gain
Page 5-13
25. Check X -Y Phasing and Bandwidth
Page 5-13
Preliminary Procedure for Performance Check
N O TE
The performance o f this instrument can be checked
a t any temperature within the 0 °C to + 4 0 °C (+ 32°F
to + 1 0 4 °F) temperature range unless stated other
wise
.
1.
Connect the 4 75 to a power source that meets the
voltage and frequency requirements of this instrument.
2.
Set the controls as given under Preliminary Control
Settings.
3. Allow at least 20 minutes warmup before proceeding.
®
5-5
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 ...
Page 215: ......
Page 237: ......
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 ...