Tektronix 465B User Manual

Calibration
Procedure—465B
Service
Adjustment
Procedure
11. Check CH
2 and CH 1
Gate Current
a. Set:
AC-GND-DC (both)
GND
VOLTS/DIV
(both) 5 mV
b.
Position trace to
graticule center
and change AC-
GND-DC
switch to DC.
c.
CHECK—
Trace shift is 0.1
division or less,
when
switching
between GND and DC.
a. Set:
VERT MODE CH 2
CH
2
VOLTS/DIV
5 mV
CH 2 AC-GND-DC DC
b.
Connect calibration
generator standard-amplitude
output to
CH 2 input via 50 Q bnc
cable. Setthe
generator
for
20 mV output.
c.
CHECK—Display is
4 divisions within 3%
(4
divisions ±0.12
division).
d.
Set VERT
MODE switches to
display CH 1. Position
trace to graticule
center and change
AC-GND-DC switch
to
DC.
e.
CHECK—Trace
shift is 0.1
division or less,
when
switching between GND and DC.
f. Set both
AC-GND-DC switches to
DC.
12. Check/Adjust Gain (R1482, R2025, R1882)
(R1482, R2005, R1882 below SN B030000)
NOTE
It is not always
necessary to do a
complete readjust-
ment to meet
instrument gain
specifications. Use
following procedure to
determine required ad-
justments.
d.
Change CH 2
VOLTS/DIV and
calibration
generator settings as
shown in Table
4-9
and
check that
deflection accuracy is
within 3% for all
VOLTS/DIV
settings listed.
e.
Set VERT MODE
Switches to display
CH 1 and set
the CH 1
AC-GND-DC switch to DC.
f.
Move the input signal
from the CH
2input connector
to
the CH 1 input
connector.
g.
CHECK—Display is
4 divisions
within
3% (4
divisions ±0.12
division).
h.
Change CH 1
VOLTS/DIV and
calibration
generator
settings as shown in Table
4-9
and check that
deflection
accuracy is within
3% for all
VOLTS/DIV
settings listed.
Table
4-9
VERTICAL
DEFLECTION ACCURACY
Volts/Div
Setting
Calibration
Generator
Amplitude
Deflection in
Dlv
For 3%
Accuracy
Reading
In Dlv
Divisions
Accuracy
10 mV
50 mV 5
±0.15 div
4.85 to 5.15
20 mV
0.1
V 5
±0.15
div
4.85
to 5.15
50
mV
0.2 V
4
±0.12 div 3.88 to
4.12
.1 V
0.5 V 5
±0.15 div
4.85
to
5.15
.2
V
1 V
5
±0.15 div
4.85
to
5.15
.5 V
2
V
4 ±0.12 div
3.88 to 4.12
1 V
5 V
5
±0.15 div
j
4.85 to 5.15
2 V
10 V 5
±0.15 div 4.85 to
5.15
5
V
20 V
4 ±0.12
div 3.88 to 4.12
4-30
REV A SEP 1979

Tektronix 465B Specifications

General

Brand	Tektronix
Model	465B
Category	Test Equipment
Language	English