Calibration
—
7623/R7623
Service
TRIGGERING
SYSTEM
Equipment
Required
1.
Mainframe standardizer calibration fixture
3.
7A15A plug-in unit
2. 7B53A plug-in unit
4.
8NC to pin-jack cable
Control
Settings
g.
Set the VERT MODE switch to RIGHT.
Set the
controls as given in
the Preliminary Control
Settings.
h.
Set
the calibration fixture Test switch to VERT or
HORIZ
+ STEP RESP, REP RATE switch to 250 Hz, and
adjust
the
Amplitude control for a two-division display.
Position
the
display in the lower half of the graticule area.
21.
Check
Trigger
Source
Operation
i.
Set the VERT MODE switch to ALT.
a.
Install the mainframe standardizer calibration fixture
in
the right vertical compartment and the 7A15A in the left
vertical
compartment.
j.
CHECK-CRT
display; both square-wave displays
are
stable.
b. Install
the 7853A
in the horizontal compartment.
k. Set the TRIG SOURCE switch
to LEFT.
c.
Set
the 7B53A for auto, internal triggering at a sweep
rate
of 0.5 millisecond/division.
I
.
CHECK-CRT display; Calibrator display only is
stable.
d.
Set
the 7A15A for a deflection factor of 0.2
volt/division.
m.
Set the TRIG SOURCE switch to RIGHT.
e.
Connect the 0.4 V Calibrator
pin-jack to the input of
the 7A15A with the BNC to pin-jack cable.
n. CHECK-CRT display; only
the calibration fixture
display is stable.
f.
Position
the Calibrator waveform display in the upper
half of
the graticule
area with the 7A15A Position control.
o.
Disconnect the BNC to pin-jack cable and remove the
plug-in
units.
2-16
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 ...