Calibration—475
TABLE 5-6
Vertical Deflection Accuracy
24. Adjust CH 2 Gain
a. Set the V E R T MODE switch to CH 2, the CH 2
V O L T S /D IV switch to 5 m V, and the AC-GND-DC switch
to DC.
b. Move the test signal to the CH 2 input.
c. Adjust the Standard Amplitude Calibrator for a
20 mV output.
d. CHECK—CRT display for 4 divisions of deflection,
within 3%.
e. ADJU ST—CH 2 5 mV Gain adjustment, R265 (see
Fig. 5-14), for 4 divisions of deflection.
f. Set the CH 2 V O L T S /D IV switch to 2 mV and adjust
the Standard Amplitude Calibrator for a 10 m V output.
g. CHECK—CRT display for 5 divisions of deflection,
within 3%.
h. A DJU ST—CH 2 2 m V Gain adjustment, R225 (see
Fig. 5-14), for 5 divisions of deflection.
i. CHECK—Accuracy of the CH 2 V O L T S /D IV switch
using the settings given in Table 5-6. Deflection factor
accuracy to be within 3% in all switch positions.
Standard
Vertical
Maximum
V O L T S /D IV
Amplitude
Deflection
Error
Switch
Calibrator
in
for 3%
Setting
Output
Divisions
Accuracy
2 m V
10 m V
5
Previously
set
5 m V
20 m V
4
Previously
set
10 m V
50 m V
5
± 0 .1 5 div
20 m V
0.1 V
5
± 0.15 div
50 m V
0.2 V
4
± 0 .1 2 div
0.1 V
0.5 V
5
± 0 .1 5 div
0.2 V
1 V
5
± 0 .1 5 div
0.5 V
2 V
4
± 0 .1 2 div
1 V
5 V
5
± 0 .1 5 div
2 V
10 V
5
± 0 .1 5 div
5 V
20 V
4
± 0 .1 2 div
b. Rotate the CH 2 VA R control fully counterclockwise.
c. CHECK—C RT display reduces to less than 2 divisions.
d. Move the test signal to CH 1.
e. Set the V E R T MODE switch to CH 1.
25. Check CH 2 and CH 1 Variable Volts/Division
f-
Adjust the Standard Amplitude Calibrator for
5
Ranges
divisions of deflection.
a. Adjust the Standard Amplitude Calibrator for 5
divisions of deflection.
Fig. 5-13. Location of Vertical Output Gain adjustment.
®
5-33
Fig. 5-14. Location of Gain adjustment for Channel 2.
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 ...