Calibration—475
4.
Check Channel 2 Inverted Balance
a.
Set the V E R T MODE switch to CH 2 and the CH 2
AC-GND-DC switch to GND.
b.
Position the trace to the center horizontal line with
the CH 2 POSITION control.
c.
Push the IN V E R T switch.
d.
CHECK—Trace does not vertically shift more than 1
division between the positions of the IN V E R T switch.
5. Check Channel 1 and 2 Position Range
a.
Connect the Standard Amplitude Calibrator output
to the CH 1 and CH 2 inputs via a 42-inch 50 12 BNC cable
and a dual input coupler.
b.
Set both V O L T S /D IV switches to 2 m V and both
AC-GND-DC switches to AC.
c. Adjust the Standard Amplitude Calibrator for a
50 m V output.
d. CHECK—That the top of the CRT display can be
positioned below the center horizontal line, and the bottom
of the display can be positioned above the center hori
zontal line.
e. Set the V E R T MODE switch to CH 1.
f.
CHECK—That the top of the CRT display can be
positioned below the center horizontal line, and the bottom
of the display can be positioned above the center horizontal
line.
6. Check Channel 1 and 2 Gain
a. Set both V O L T S /D IV switches to 5.mV.
b.
Adjust the Standard Amplitude Calibrator for a
20 m V square-wave output.
c.
CHECK —CRT display for 4 divisions of deflection,
within 0.12 division.
d.
Set the V E R T MODE switch to CH 2.
e.
CHECK—CRT display for 4 divisions of deflection,
within 0.12 division.
7.
Check Add Mode Operation
a.
Set both AC-GND-DC switches to DC.
b.
Adjust the Standard Amplitude Calibrator for a
10 m V output.
c. Set the V E R T MODE switch to A D D .
d.
CHECK —C RT display for 4 divisions, within 0.12
division, of amplitude.
8. Check Channel 1 and 2 Deflection Accuracy
a.
Set the V E R T MODE switch to CH 1 and the CH 2
AC-GND-DC switch to GND.
b.
C HECK —Using the CH 1 V O L T S /D IV switch and the
Standard Amplitude Calibrator settings given in Table 5-2,
check that the vertical deflection factor is within the given
tolerance in each position of the CH 1 V O L T S /D IV switch.
TAB LE 5-2
Vertical Deflection Accuracy
V O L T S /
Standard
Vertical
Maximum
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
±0.15 div
20 m V
0.1 V
5
± 0.15 div
50 m V
0.2 V
4
± 0.12 div
0.1 V
0.5 V
5
±0.15 div
0.2 V
1 V
5
± 0.15 div
0.5 V
2 V
4
± 0.12 div
1 V
5 V
5
± 0.15 div
2 V
10 V
5
± 0.15 div
5 V
20 V
4
± 0.12 div
c.
Set the V E R T MODE switch to CH 2.
d.
Set the CH 1 AC-GND-DC switch to GND and the
CH 2 AC-GND-DC switch to DC.
5-7
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 ...