Vertical; Check Deflection Accuracy And Variable Range - Tektronix 2213 Instruction Manual

Performance Check Procedure—2213 Service
Equipment Required (see Table 4-1):
Calibration Generator (Item 1)
Leveled Sine-Wave Generator (Item 2)
5 0-ft BNC Cable (Item 4)
INITIAL CONTROL SETTINGS
POWER
CRT
AUTO INTENSITY
AUTO FOCUS

Vertical

POSITION (both)
VER TICAL MODE
CH 1 VO LTS/DIV
CH 2 VO LTS/DIV
VO LTS/DIV Variable
(both)
INVERT
AC-GND-DC (both)
Horizontal
POSITION
HORIZONTAL MODE
SEC/DIV
SEC/DIV Variable
X10 Magnifier
Trigger
VAR H04.DOFF
MODE
SLOPE
LEVEL
I NT
SOURCE
PROCEDURE STEPS
1.

Check Deflection Accuracy and Variable Range

a. Connect a 10-mV standard-amplitude signal to the
CH 1 OR X input connector using a 50-J2 cable.
4-4
VERTICAL
ON (button in)
As desired
Best focused display
Midrange
CH 1
2 mV
10 V
CAL detent
Normal (button out)
DC
Midrange
NO DLY
0.5 ms
CAL detent
O ff (knob in)
NORM
AUTO
J~
Midrange
VERT MODE
I NT
50-J2 BNC Termination (Item 5)
Dual-Input Coupler (Item 6)
b. CHECK—Deflection accuracy is w ithin the lim its
given in Table 4-2 fo r each CH 1 VO LTS/DIV switch set­
ting and corresponding standard-amplitude signal. When
at the 20-mV VO LTS/DIV switch setting, rotate the
CH 1 VO LTS/DIV Variable control fu lly counterclockwise
and CHECK that the display decreases to 2 divisions or
less. Then return the VO LTS/DIV Variable control to
the CAL detent and continue w ith the 50-mV check.
c. Set the VER TICAL MODE switch to CH 2 and move
the cable from the CH 1 OR X input connector to the
CH 2 OR Y input connector.
Table 4-2
Deflection Accuracy Limits
VO LTS/DIV Standard
Switch Amplitude
Setting Signal
2 mV 10 mV
5 mV
20 mV
10 mV
50 mV
20 mV
0.1 V
50 mV 0.2 V
0.1 V
0.5 V
0.2 V
1 V
0.5 V
2 V
1 V
5 V
2 V
10 V
5 V
20 V
10 V
50 V
4
3% Accuracy
Vertical
Deflection Limits
(Divisions) (Divisions)
5 4.85 to 5.15
4
3.88 to 4.12
5 4.85 to 5.15
5 4.85 to 5.15
4 3.88 to 4.12
5 4.85 to 5.15
5
4.85 to 5.15
4 3.88 to 4.12
5 4.85 to 5.15
5 4.85 to 5.15
4 3.88 to 4.12
5 4.85 to 5.15