b. Use 5 nanosecond time markers and 0.1 Ms triggers.
Calibration—475
b. Use 5 nanosecond time markers and 0.1 Ms triggers.
g. A D JU S T—Cl 233 and C l 253 for 1 time marker/
division.
c. A DJU ST—Cl 233 and C l 253 for 1 cycle/division,
within 2%, from +20°C to +30°C ; 1 cycle/division, within
4%, from —15° C to +55° C.
h. A T IM E /D IV to 0.02
ms
.
i. Use 2 nanosecond time markers.
d. A T IM E /D IV to 0.02 Ms.
e. Use 2 nanosecond time markers.
j. Set Test Oscilloscope: V O L T S /D IV to 10 m V, T IM E /
D IV to 0 .2
ms
.
f. A D JU ST—Cl 179 for 1 cycle/division, within 2%,
from +20°C to +30°C; 1 cycle/division, within 4%, from
k. A D JU ST—Cl 179 for 1 time marker/division.
—15°C to +55° C.
1. A T IM E /D IV to 0.01
ms
.
g. A T IM E /D IV to 0.01 Ms.
m. Set Test Oscilloscope:
V O L T S /D IV to 20 m V,
T IM E /D IV to 0.1 Ms.
h. A DJU ST—R1075 for 1 cycle/2 divisions, within 2%,
from +20°C to +30°C; 1 cycle/2 divisions, within 4%, from
- 1 5 ° C t o +55° C.
n. A D JU ST—R 1075 for 1 time marker/2 divisions.
N O T E
o. A D JU ST—R 1 175 and R 1185 for flat-top symmetrical
waveform.
I f timing cannot be adjusted within 2% from + 2 0 °C
to + 3 0 °C, or 4% from
—75°C to + 5 6 °C, proceed to
step 47. I f timing is within given tolerance, proceed
to step 48.
48. Check A and B Timing Accuracy
a. From 0.01
ms
to 5 ms, at +20°C to + 3 0 °C, accuracy is
1%.
47. Adjust High Speed Timing—Current Probe
Method
a. A T IM E /D IV to 0 .0 5
ms
,
b. From 10 ms to 0.5 s, at + 2 0 °C to + 3 0 °C, accuracy is
2%.
X I 0 MAG pushed in.
b. Use 5 nanosecond time markers and 0.1 Ms triggers.
c. From —15°C to + 5 5 °C, accuracy of all sweep settings
is 3%.
c. Hook the P6022 current probe, with passive termina
tion, around the crossed horizontal deflection leads on the
475. Connect the P6022 to the test oscilloscope.
49. Check A IN TEN Timing Accuracy
a. From +20°C to + 3 0 °C, from 0.0bps
to 0.5 s,
accuracy is within 2%.
d. Set Test Oscilloscope: V O L T S /D IV to 5 m V, T IM E /
D IV to 0 .5
ms
, X I 0 MAG engaged.
b. From —15°C to + 5 5 °C, from 0 .0 5
ms
to 0.5 s,
accuracy is within 3%.
e. A D JU ST—R 1175 to midrange, R1185 to midrange.
Cl 233 and Cl 253 half-closed, and Cl 179 one turn from
fully clockwise.
50. Check A and B Magnified Timing Accuracy
a. From +20°C to + 3 0 °C, from 0.01 Ms to 5 ms,
accuracy is within 2%.
f. A DJU ST—R 1175 and R1185 for symmetrical wave
form.
b. From +20° C to + 3 0 °C, from 10 ms to 50 ms,
accuracy is within 3%.
5-21
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 ...