Calibration—475
h. CHECK—Repeat step 33-d.
i. ADJU ST—Channel 1's C36 and C37 (see Fig. 5-19)
with a low-capacitance screwdriver, for best corner and
flat-top waveform.
j. CAL A ID —Remove the 20 pF normalizer when
adjusting or checking the corner response.
k. IN T E R A C T IO N -B etw een Channel 1's C36 and C37.
Re-adjust both for optimum response.
I. Turn the CH 1 V O L T S /D IV switch to 20 m V.
m. CHECK—Repeat step 33-d.
n. ADJUST-Channel 1's C34 and C35 (see Fig. 5-19)
with a low-capacitance screwdriver, for best corner and
flat-top waveform.
o. IN T E R A C T IO N —Between Channel 1's C34 and C35.
Re-adjust both for optimum response.
p. Turn the CH 2 V O L T S /D IV switch to 50 mV.
q. CHECK—Repeat step 33-d.
r.
A DJUST-Channel 1's C32 and C33 (see Fig. 5-19)
with a low-capacitance screwdriver, for best corner and
flat-top waveform.
s. IN T E R A C T IO N —Between Channel 1's C32 and C33.
Re-adjust both for optimum response.
t. Turn the CH 1 V O L T S /D IV switch to 0.1 V.
u. CHECK—Repeat step 33-d.
v. Turn the CH 1 V O L T S /D IV switch to 0.2 V.
w. CHECK—Repeat step 33-d.
x. Turn the CH 1 V O L T S /D IV switch to 0.5 V.
y. C HECK —Repeat step 33-d.
z. A D JU ST—Channel 1's C30 and C31 (see Fig. 5-19)
with a low-capacitance screwdriver, for best corner and
flat-top waveform.
aa. IN T E R A C T IO N —Between Channel 1's C30 and C31.
Re-adjust both for optimum response.
ab. Repeat step 33-d for 1 V , 2 V , and 5 V positions of
the CH 1 V O L T S /D IV switch.
ac. Disconnect the test setup.
34. Check Vertical Amplifier Bandwidth
a. Connect the output of the High-Frequency Constant-
Amplitude Signal Generator (067-0532-01) to the CH 1
input via a GR-to-BNC adapter, X I 0 BNC attenuator, and a
50 12 BNC termination.
b.
Set the T R IG MODE switch to A U T O , the A
T IM E /D IV switch
to 0.2 ms, and both V O L T S /D IV
switches to 5 m V.
c. Adjust the High-Frequency signal generator output
amplitude for a five division display of a 3 megahertz
reference signal.
d. W ithout changing the output amplitude, increase the
output frequency of the High-Frequency signal generator
until the display is reduced to 3.5 divisions.
e.
C HECK —Output frequency of the High-Frequency
signal generator must be at least 200 megahertz.
f.
Move the test signal to the CH 2 input and set the
V E R T MODE switch to CH 2.
g. Repeat the bandwidth check procedure, step 34-c
through 34-e.
h. Disconnect the test setup.
35. Check Cascaded Bandwidth
a. Set both AC-GND-DC switches to DC, both V O L T S /
D IV switches to 5 m V , the A T IM E /D IV switch to 1 ms,
and the V E R T MODE switch to CH 1.
5-38
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 ...
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Page 200: ...FIG 3 RIGHT SIDE l 475 OSCILLOSCOPE ...
Page 201: ...V S X O t l B O T T OVJ 8 8 ...
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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 ...