Calibration—475
e. C HECK—Intensified portion of the sweep begins at
the tenth time marker.
f . A D J U S T —Delay
Stop
adjustment,
R936
(see
Fig. 5-23), so the left side of the intensified zone starts on
the leading edge of the tenth time marker.
g. Set the H O R IZ D ISPLA Y switch to B D L Y 'D .
h. Set the D E L A Y T IM E POSITION dial to 1.00.
i. C HECK—Displayed pulse starts at the beginning of the
sweep.
j. A D JU ST—Delay Start adjustment, R938, so the
displayed pulse starts at the beginning of the sweep.
k. Set the D E L A Y T IM E POSITION dial to 9.00.
l
. CHECK—Displayed pulse starts at the beginning of the
sweep.
m. A DJU ST—Delay Stop adjustment, R936, so the
displayed pulse starts at the beginning of the sweep.
n. IN T E R A C T IO N —Between Delay Start and Delay
Stop adjustments. Repeat both for no visible interaction.
63. Check Differential Time Accuracy
a. Set the D E L A Y T IM E POSITION dial to position the
tenth time marker to the beginning of the sweep.
b. Note the reading on the D E L A Y T IM E POSITION
dial.
c. Adjust the D E L A Y T IM E POSITION dial so the ninth
time marker is at the beginning of the sweep.
d. C H E C K -D E L A Y T IM E POSITION dial fo ra reading
one division less, within 0.01 division from + 1 5 °C to +35° C
(one division less, within 0.02 division from —15°C to
+55°C) than the reading noted in step 63-b.
e. Rotate the D E L A Y T IM E POSITION dial to position
each successive time marker to the beginning of the sweep.
f. C H E C K -D E L A Y T IM E POSITION dial for a reading
of one division less, within 0.01 division from +15°C to
+35°C (one division less, within 0.02 division from —15°C
to +55°C ), than the adjacent time marker.
64. Adjust Horizontal Amplifier Gain
a. Set the H O R IZ D IS PLA Y switch to A , both T IM E /
D IV switches to 1 ms, and the V E R T MODE switch to
CH 1.
b. Select 1 ms time marks from the Time-Mark Genera
tor.
N O T E
Unless otherwise stated, tim ing checks are made over
the entire 10 divisions.
c. CHECK—CRT display for 1 time marker/division,
within 1% from +20°C to -K30°C; for 1 time marker/
division, within 3% from —1 5 °C to +55°C.
d. A D JU ST—Horizontal Gain adjustment, R1155 (see
Fig. 5-24), for 1 time marker/division.
N O T E
E ffective range o f R 1 1 5 5 is determ ined b y the
selected value o f R 1 1 5 4. R 1 1 5 4 m ay be 100 El,
124
£2,
o r ISO
£2,
1/8 w a tt, 1% resistor.
e. Select 0.1 ms time marks from the Time-Mark
Generator.
f. Push the X I 0 MAG button.
Fig. 5-24. Location of Horizontal Gain and Magnifier Registration
adjustments.
5-50
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 ...