Tektronix 2247A

Performance Check Procedure
3. CH 3 and CH 4 VOLTS/DIV Trace Shift
a. Set Vertical MODE to CH 3 (CH 2 off).
b. Position trace to the center horizontal graticule line.
c.
Switch
CH
3
VOLTS/DIV
between
0.1
V
and
0.5
V.
d.
CHECK—trace
shift
does
not
exceed
one
division.
@. Set Vertical MODE to CH 4 (CH 3 off).
f. Position trace to the center horizontal graticule line.
g.
Switch
CH
4
VOLTS/DIV
between
0.1
V
and
0.5
V.
h.
CHECK
—trace
shift
does
not
exceed
one
division.
4, CH 1 and CH 2 VAR VOLTS/DIV Trace Shift
a. Set:
Vertical
MODE
CH
1
(CH
4
off)
CH 1 VOLTS/DIV 2mvV
b. Position trace to center graticule line.
c. Set CH 1 VAR VOLTS/DIV fully cew.
d.
CHECK—trace
shift
does
not
exceed
one
division.
8. Set:
CH
1
VAR
VOLTS/DIV
Detent
(callbrated)
Vertical
MODE
CH
2
(CH
1
off)
CH 2 VOLTS/DIV 2mvV
f. Position trace to center graticule line.
g. Set CH 2 VAR VOLTS/DIV fully cow.
h.
CHECK
—trace
shift
does
not
exceed
one
division.
|.
Set
CH
2
VAR
VOLTS/DIV
to
detent
(calibrated)
position.
7-12
2247A Operators
ay