Tektronix T912 - Page 37

Adjustments—
T91
2
Table
4-1 (cont)
Description
Minimum
Specifications
Usage
Examples of
Applicable
Test Equipment
4.
Square-Wave
Generator
Frequency, 1
kHz and 100
kHz;
risetime,
2 ns or less.
High
frequency
compen-
sation
and vertical
attenuator
adjustments.
a.
TEKTRONIX PG 506
Calibration
Generator.”
b.
TEKTRONIX Type 106
Square-Wave
Generator.
5.
Sine-Wave
Generator Frequency,
2 kHz;
frequency
accuracy,
within
5%.
Storage
level
adjust-
ment.
a.
TEKTRONIX
SG 502
Sine-wave
Generator.”
b.
TEKTRONIX
FG
503
Function
Generator.”
6.
Cable
Length, 42 in.;
impedance,
50
0;
connectors,
bnc.
Signal
interconnection. a.
Tektronix
Part
012-
0057-01.
7
Termination
Impedance,
50
Q;
connectors
bnc.
Signal
termination.
a.
Tektronix
Part
011-
0049-01.
8.
Low-Capacitance
Alignment
Tool
Variable
capacitor
adjustments.
Vertical
attenuator and
high-
frequency
compensation
adjustment.
a.
General
Cement
adjust-
ment
tool
G-C.
8722.
9.
Screwdriver
Length,
3
in. shaft;
bit
size, 3/32 in.
Variable
resistor
adjust-
ments.
a.
Xcelite R-3323,
10.
1 0X
Attenuator
Ratio, 10X; impedance,
50
0;
connectors,
bnc.
Vertical
attenuator
adjustments.
a.
Tektronix
Part
011-
0059-02.
11. Probe,
10X
Attenuation,
10X; Probe
can be compensated
for
input
characteristics of
T912.
Vertical
attenuator
compensation.
a.
P6006,
Tektronix Part
010-0160-00. (Standard
accessory
for
T912.)
12.
Adapter Probe-tip-to-bnc.
Vertical
attenuator
compensation.
a.
Tektronix Part
013-
0054-00.
"Requires
TM500
Series
Power
Module
PRELIMINARY
PROCEDURE
WARNING
Dangerous
potentials
exist at
several
points
inside
your
instrument.
To
prevent
electrical
shock, do
not
touch
exposed
connections
or
components
when
the
instrument
is
operated
with the
cover
removed.
Disconnect
power
cord plug
from
power
input
voltage
source
while
disassembling
or
repairing
this
instrument.
1.
Remove
the
cabinet
from
the
instrument.
To
remove
the
cabinet,
remove
the six
retaining
screws
(three on
the
top
and
three
on the
bottom)
and
slide the
halves
apart.
2.
Check
that
the 120 V/240
V
and HI/LO
switches
are
properly
set
(see
Operating
Voltage
Selection,
page
5-1).
3.
Connect the
T912 and
test
equipment to an
ap-
propriate
power
input
source.
Turn
them on
and
allow
at
least 20
minutes
warm-up
before
starting the
adjustment
procedure.
For best
overall
accuracy,
make
adjustments
at an
ambient
temperature
of
1-20°
C to
+30°
C.
4-2
REV B, DEC 1978