Calibration
—7D14
PART
II
—AD JUSTM ENT
Introduction
The
following procedure returns the 7D14 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
the Perfor
mance
Requirement
column in Section
1. The
actual
operation
of the
instrument
may exceed the given limits or
tolerances if
the instrument
meets the Performance Re
quirements
as checked
in Part I — Performance Check of
this
section.
Index
of
Part II
—
Adjustment
Channel A
Adjustments
1.
Adjust Input
Zero
(R225)
Page 5-13
(C132)
(C150)
Measurement Interval Adjustment
Output
Signal Adjustment
Trigger Indicator Display Post-
tioning (R866)
Preliminary
Procedure
for
Adjustment
NOTE
This
instrument should be adjusted at an ambient
temperature of 25°C ±5°C
for best overall accuracy.
1.
Remove
the
right
side shield from the 7D14, and the
right side panel from the Indicator
Oscilloscope.
2.
Install
the 7D14
in the B horizontal plug-in compart
ment
of
the Indicator Oscilloscope.
3.
Connect
the Indicator Oscilloscope to
a power source
which
meets the frequency and voltage requirements of the
oscilloscope power supply.
4. Turn
the Indicator Oscilloscope
power on. Allow at
least twenty minutes
warmup before proceeding.
5.
Set the
controls as
given under Preliminary Control
Settings.
6.
Advance the Indicator Oscilloscope
Readout
control
to obtain
a usable readout display. Adjust the Focus and
Astigmatism
as necessary to obtain a well-defined
display.
NOTE
Titles for
external
controls of this instrument are
capitalized
in this procedure
(e.g.,
INPUT SENS).
Internal
adjustments are initial
capitalized only (e.g.,
Ref
Voltage).
NOTES
5-12
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 ...