Calibration—
7623/R7623 Service
CALIBRATION
PROCEDURE
7623
Serial
No._____________________________________
Calibration Date
_____________________________________
Calibrated
By ______________________________________
Introduction
The
following procedure returns the 7623
to correct
calibration.
All limits and tolerances given in this procedure
are
calibration guides,
and should not be interpreted as
instrument
specifications except
as listed in Section
2.
Index
to
Calibration
Procedure
Power Supply
1.
Adjust
-50 Volt Power Supply
Page 2-7
2.
Check Remaining Power-Supply Voltages
Page
2-7
3.
Check
High-Voltage Power Supply
Page 2-8
Display
and
Z-Axis
4.
Adjust
CRT Grid Bias
Page
2-9
5.
Adjust Astigmatixm
Page
2-10
6.
Adjust Trace Rotation
Page 2-10
7.
Adjust Y-Axis Alignment
Page 2-10
8.
Adjust Geometry
Page 2-10
9.
Check
External
Z-Axis Operation
Page 2-11
10.
Check Beam Finder
Page 2-11
Vertical
Deflection System
11.
Adjust
Bias Adjustment
Page 2-12
12.
Adjust Vertical
Centering
Page
2-12
13.
Check Vertical Gain
Page
2-12
14.
Check Vertical
Linearity
Page
2-13
15.
Adjust
Vertical High-Frequency Com
pensation
Page
2-13
16.
Check Vertical Amplifier Bandwidth
Page
2-13
17.
Check Vertical
Amplifier Isolation
Page
2-14
18.
Check Added Operation
Page
2-14
19.
Check Alternate Operation
Page
2-14
20.
Check Vertical Chopped Mode Opera
tion
Page
2-15
Triggering
System
21.
Check Trigger Source Operation
Page
2-16
Horizontal Deflection
System
22.
Adjust Horizontal
Amplifier Gain
and
Low Frequency
Linearity
Page
2-17
23.
Adjust
Horizontal
Amplifier Centering
Page
2-17
24.
Adjust Horizontal Amplifier Limit
Centering
Page
2-18
25.
Adjust High Frequency Timing
Page
2-18
26.
Check X-Y Phase Shift
Page
2-19
27.
Check Horizontal
Bandwidth
Page
2-19
Z-Axis
and Auto
Focus
28. Adjust Z-Axis
Compensation
Page
2-20
29.
Adjust Auto Focus
Compensation and
Operating
Levels
Page
2-20
Calibrator
30. Adjust
Calibrator Output Voltage
Page
2-21
31.
Check Calibrator
Repetition
Rate
Page
2-21
Signals
Out
32.
Check SINGLE
SWEEP READY
OUT
Page
2-22
33.
Check EXT SS RESET IN
Page
2-22
34. Check VERT
SIG
OUT
Page 2-22
35. Check + SAWTOOTH
OUT
Page
2-22
2-5
Summary of Contents for 7623
Page 1: ...MANUAL 7623 R7623 STORAGE OSCILLOSCOPE SERVICE MANUFACTURERS OF CATHODE RAY OSCILLOSCOPES ...
Page 51: ...Fig 3 2 Block diagram of Logic circuit Circuit Description 7623 R 7623 Service ...
Page 72: ...W NJ 00 Fifl 3 22 Low Voltage Power Supply detailed block diagram ...
Page 73: ...Circuit Description 7623 R 7623 Service ...
Page 74: ...CO NJ CD Fig 3 22 Low Voltage Power Supply detailed block diagram cont ...
Page 75: ...Circuit Description 7623 R 7623 Service ...
Page 97: ...Circuit Description 7623 R7623 Service 3 51 ...
Page 98: ...Circuit Description 7623 R7623 Service Fig 3 39 Output Pulses for the Storage Circuits 3 52 ...
Page 103: ...Circuit Description 7623 R7623 Service 3 57 ...
Page 108: ... Ç À Fig 4 2 Location of circuit boards in the 7623 ...
Page 109: ...Fig 4 3 Location of circuit boards in the R7623 Maintenance 7623 R 7623 Service ...
Page 113: ...Maintenance 7623 R7623 Service Fig 4 6 Circuit Isolation Troubleshooting Chart 4 9 ...
Page 165: ...7623 BLOCK DIAGRAM ...
Page 166: ...7623 R7623 Service Front of Board ...
Page 167: ......
Page 168: ...FL ...
Page 169: ......
Page 173: ...7623 Logic ...
Page 175: ...Vertical Interface A4 ...
Page 178: ...Vertical Interface ...
Page 180: ...Vertical Amp A5 ...
Page 184: ...Horizontal Amp A6 ...
Page 186: ...7623 TO P450 VERT AMP 3 HORIZONTAL AMPLIFIER ...
Page 188: ...Output Signals A7 ...
Page 190: ...FROM 7G23 Output Signals g ...
Page 195: ...FROM LV POWER SUPPLY 7623 CRT CIRCUIT ...
Page 197: ......
Page 200: ......
Page 202: ...Storage Output A14 ...
Page 204: ......
Page 205: ...7623 R7623 Service Fig 6 14 A15 Cal Storage circuit board ...
Page 208: ......
Page 209: ...7623 R7623 Service Fig 6 15 A16 Readout System circuit board ...
Page 213: ......
Page 242: ...7623 R7623 OSCILLOSCOPE b ...
Page 243: ...151 ...
Page 246: ...20 ...
Page 247: ...7623 R7623 OSCILLOSCOPE 112 ...