Page 4 of 6
475 Service
d)
d) Set the Test Oscilloscope: V ertical Mode to ADD, CH 2
to in v e rt, both Volts/Div switches to 5 mV.
e) Connect two X10 probes from the Test Oscilloscope to
the preamp side of the delay lin e .
f ) Adjust CH 1 2 mV Gain Adjustment, R195 (see new Fig.
5-12) fo r a 250 mV (Peak-to-Peak) display on the Test
Oscilloscope.
g) FSemove the X10 probes from delay lin e .
h) Adjust V ertical Output Gain Adjustment, R449 (see Fig.
5-13) fo r 5 divisions of deflec tio n .
i ) Set the CH 1 VOLTS/DIV to 5 mV and adjust the
STANDARD AMPL. CALIBRATOR fo r a 20 mV output.
j ) Adjust-CH 1 5 mV Gain Adjustment, R165 (see new Fig.
5-12) fo r 4 divisions of d eflec tio n .
k) CHECK-Accuracy of the CH 1 Volts/Div switch using the
settings given in Table 5-6. The deflectio n facto r accuracy
fo r each position must be w ithin 3%.
24.
Adjust CH 2 Gain (SN B030000-up)
a) Set the Vert Mode switch to CH 2, the CH 2 Volts/Div
switch to 2 mV, and AC-GND-DC switch to DC.
b) Move the te s t signal to the CH 2 input.
c) Adjust the STANDARD AMPL. CALIBRATOR fo r 10 mV output.
d) Adjust-CH 2 2 mV Gain, R295 fo r 5 divisions of d eflec tio n .
e) Set the CH 2 Volts/Div switch to 5 mV and adjust the
STANDARD AMPL. CALIBRATOR fo r 20 mV output.
f ) Adjust-CH 2 5 mV Gain Adjustment, R265 (see new Fig. 5 -1 4 ),
fo r 4 divisions of d eflec tio n .
g) CHECK-Accuracy of the CH 2 Volts/D iv switch using the settings
given in Table 5-6. Deflection fa cto r accuracy must be w ithin 3%
in a ll positions.
C2/573
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 ...
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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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