Operating Information—475
3.
Advance the IN T E N S IT Y control until the display is
visible. If the display is not visible with the IN T E N S IT Y
control at midrange, press the BEAM F IN D pushbutton and
adjust the CH 1 V O L T S /D IV switch until the display is
reduced in size vertically; then center the compressed
display
with the vertical
and horizontal
POSITION
controls; release the BEAM F IN D pushbutton. Adjust the
FOCUS control for a well-defined display.
4.
Set the CH 1 V O L T S /D IV switch and CH 1 POSI
T IO N control for a display which remains in the display
area vertically.
5. Adjust the A Trigger LE V E L control for a stable
display.
6. Set the B T IM E /D IV switch and the horizontal
POSITION control for a display which remains in the
display area horizontally.
Magnified Sweep Display
1. Preset the instrument controls and follow steps 1
through 6 for obtaining a Normal Sweep Display.
2. Adjust the horizontal POSITION control to move the
area to be magnified to within the center graticule division
of the CRT. If necessary, change the T IM E /D IV switch
setting so the complete area to be magnified is within the
center division.
3.
Set the X10 MAG switch to the on position (button
in) and adjust the horizontal POSITION control for precise
positioning of the magnified display.
Delayed Sweep Displays
1.
Preset the instrument controls and follow steps 1
through 6 for obtaining a Normal Sweep Display.
2. Set the H O R IZ D IS PLA Y switch to A IN T and the B
Trigger SOURCE switch to STARTS A FTE R D E L A Y .
3. Pull out the B T IM E /D IV switch knob and turn
clockwise so the intensified zone on the display is the
desired length. Adjust the IN T E N S IT Y control to achieve
the desired display brightness.
4.
Adjust the D E L A Y -T IM E POSITION dial to position
the intensified zone to the portion of the display to be
delayed.
5.
Set the H O R IZ DISPLAY switch to B D L Y D . The
intensified zone on the display noted in step 3 is now being
displayed in delay form. The delayed sweep rate is
indicated by the dot on the B T IM E /D IV switch knob.
6.
For a delayed sweep display that will exhibit less
jitter, set the B Trigger SOURCE switch to the same
position as the A Trigger SOURCE switch and adjust the B
Trigger L E V E L control for a stable display. If the A Trigger
SOURCE switch is in the LIN E position, a sample of the
line voltage will have to be supplied to the B Trigger circuit
externally.
Mixed Sweep Display
1.
Preset the instrument controls and follow steps 1
through 6 for obtaining a Normal Sweep Display.
2.
Pull out the B T IM E /D IV switch knob and turn
clockwise to the desired sweep rate. Adjust the IN T E N
S IT Y control to achieve the desired display brightness.
3.
Set the H O R IZ D ISPLAY switch to M IX . The CRT
display now contains more than one time factor on the
horizontal axis. The first portion of the display is at the A
Time Base sweep rate and the latter part is at the B Time
Base sweep rate. The start of the B Time Base portion of
the display can be changed by adjusting the D E L A Y -T IM E
POSITION control.
X -Y Display
1.
Preset the instrument controls and turn the instru
ment power on. Allow several minutes for instrument
warm-up.
2.
Set the T IM E /D IV switch to X -Y and the V E R T
MODE to CH 2. Apply the vertical signal to the CH 2 OR Y
input connector and the horizontal signal to the CH 1 OR
X input connector. The CH 2 POSITION control will
provide vertical positioning and the CH 1 POSITION
control will provide horizontal positioning.
3.
Advance the IN T E N S IT Y control until the display is
visible. If the display is not visible with the IN T E N S IT Y
control at midrange, press the BEAM F IN D pushbutton and
adjust the CH 1 and CH 2 V O L T S /D IV switches until the
display is reduced in size both vertically and horizontally;
then center the compressed display with the POSITION
controls; release the BEAM F IN D pushbutton. Adjust the
FOCUS control for a well-defined display.
®
2-7
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 ...
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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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