Calibration—475
Fjg. 5-25. Location of A and B Sweep timing adjustments.
j.
Note the reading on the D ELAY TIME POSITION dial
fo r use in step 68-k.
k.
Turn the D ELAY TIME POSITION dial 8 divisions
higher than the reading in step 68-j.
I.
CHECK—Time marker is at center vertical graticule
line.
m.
ADJUST—C1023 to position the time marker to the
center vertical graticule line.
n.
CAL A ID —Repeat the above procedure fo r optimum
tim ing response at +1.00 and +8.00 settings of the DELAY
TIME POSITION dial.
69. Adjust 0.1 Microsecond Timing
a.
Set the D ELAY TIM E POSITION dial to 1.00, the
HORIZ DISPLAY switch to A INTEN, and the B T IM E /
D IV switch to 0.1 Ms.
b.
Select 0.1
ms
time marks from the Time-Mark
Generator.
c.
CHECK—CRT display for 1 time marker/division,
w ithin 2% from +20°C to +30°C; 1 time marker/division,
w ithin 3% from —15°C to +55°C.
d.
ADJUST—C l025
(see
Fig. 5-25)
w ith
a
low-
capacitance screwdriver, fo r 1 time marker/division.
e.
Set the HORIZ DISPLAY switch to B D LY 'D and the
B T IM E /D IV switch to 0.01 Ms.
f.
Adjust the D ELAY TIM E POSITION dial to position
the tim e marker to the center vertical graticule line.
g.
Note the reading of the D ELAY TIM E POSITION dial
for use in step 69-h.
h.
Turn the D ELAY TIME POSITION dial 8 divisions
higher than the reading in step 69-g.
i.
CHECK—Time marker is at center vertical graticule
line.
j.
ADJUST—C l025 to position the time marker to the
center vertical graticule line.
k.
CAL A ID —Repeat the above procedure fo r optimum
tim ing response at +1.00 and +8.00 settings of the D ELAY
TIM E POSITION dial.
I.
Set the HORIZ DISPLAY switch to A and both
T IM E /D IV switches to 0.1
ms
.
m.
CHECK—CRT display for 1 time marker/division,
w ithin 1% from +20°C to +30°C; 1 time marker/division,
w ithin 3% from —15°C to +55°C.
n.
ADJUST—C l009
(see
Fig. 5-25)
w ith
a
low-
capacitance screwdriver for 1 tim e marker/division.
o. Disconnect the test setup.
70. Adjust Horizontal Output Centering
a.
Set the A T IM E /D IV switch to X-Y, the HORIZ
DISPLAY switch to A, and the VERT MODE switch to
CH 1.
5-52
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 ...