Calibration
—7D14
OUTPUT
SIGNAL
ADJUSTMENT
Equipment
Required
1.
Indicator Oscilloscope
5.
Five-nanosecond GR cable
2.
Amplifier plug-in unit
6.
50-ohm
in-line termination
3.
Time-base plug-in unit
7.
GR to BNC male adapter
4.
Medium-frequency constant-amplitude
sine-wave
generator
8.
Three-inch
screwdriver
Control
Settings
Set the
controls as given under Preliminary Control
Settings.
The
location of the Output Signal adjustment is shown
in
Fig. 5-4.
7.
Adjust
Trigger
Indicator
Display
Positioning
a.
Install
the 7D14 in the left vertical plug-in
compart
ment of the Indicator Oscilloscope.
b. Remove the left side cover from the indicator Oscillo
scope.
c.
Set
the
amplifier
unit for a vertical deflection factor
of 50
mV/division and the time-base unit
for a sweep
rate
of
10 µs/division.
d.
Connect
the medium-frequency constant-amplitude
sine-wave
generator
to
the amplifier unit input through the
five-nanosecond
GR cable and 50-ohm in-line termination.
e.
Set
the medium-frequency generator for
a
three-
division
display (150
millivolts) at the 50-kilohertz refer
ence
frequency.
f. Disconnect
the
generator from the amplifier
unit
input.
g.
Connect
the
medium-frequency generator to the CH
A
INPUT
through the five-nanosecond GR cable and GR to
BNC male adapter.
h.
Change
the following control settings:
Indicator Oscilloscope
Vertical Mode
Left
A
Trigger
Sou rce
Left
V
ert
i. CHECK—
CRT display;
the Trigger Indicator square
wave
display should
be positioned
in the CRT viewing area.
j.
ADJUST
—Display
Positioning
adjustment
R866 to
vertically
position
the
Trigger Indicator display
in the
desired
area of the
CRT.
This completes the Adjustment
procedure of the 7D14.
Disconnect
all test equipment. Replace the
left side cover
on
the Indicator
Oscilloscope.
5-17
Summary of Contents for 7D14
Page 4: ...7D14 ...
Page 11: ...Operating Instructions 7D14 Fig 2 1 7D14 front panel controls and connectors 2 2 ...
Page 33: ... 3 13 Fig 3 11 Logic diagram for Zero Cancel Logic stage Circuit Description 7D14 ...
Page 38: ...3 18 Fig 3 16 Time Base and Control circuit detailed block diagram Circuit Description 7D14 ...
Page 44: ...NOTES ...
Page 46: ...NJ Fig 4 1 Electrode configuration for semiconductors in this instrument I ...
Page 68: ...NOTES ...
Page 96: ... 7DI 4 DIGITAL COUNTER UNIT ...
Page 98: ...GRS 0371 BLOCK DIAGRAM ...
Page 99: ......
Page 103: ...0 0 I 200 mV 500 µs 0 001 200 mV 500 µs 0 001 MHz 00 mV E 00 µs 0 001 MHz ...
Page 106: ...1 ...
Page 110: ...A2 Logic Circuit Board Assembly jQ798i 798 jc743 CR744t uni R724 R742 JL744S FrR796 ...
Page 113: ......
Page 114: ...P 0 A2 LOGIC BOARD ...
Page 121: ... A B D t F H J NPR Tj ZWX V A AC M AEA HUM qAZ DEF HJ N P R S T J V V7X y ABM APAI AA 7DI4 ...
Page 129: ......
Page 130: ...4 7D14 DIGITAL COUNTER ...