Dc Accuracy Limits - Tektronix 2336YA Instruction Manual

Performance Check Procedure-2336 Service
c. Return both the Horizontal POSITION and the
INTEN controls to midrange.
d. Set CH 1 AC-GND-DC switch to GND.
e. While s t i l l holding in the BEAM FlND button,
vertically position the trace to the center horizontal grati-
cule line.
f. Release the BEAM FlND button.
Table 4-2
DC Accuracy Limits
g. CHECK-Trace remains in the graticule area.
h.
Return CH
1
AC-GND-DC switch to DC and dis-
connect the test equipment.
VOLTSIDIV
Switch
Setting
5 m
9. Check CH 1 and CH 2 DC Accuracy
a. Set CH 1 VOLTSIDIV to 5 m.
Vertical
Deflection
(Divisions)
4 ,
Standard
Amplitude
Signal
20 mV
b. Connect a 20-mV standard-amplitude signal to the
10. Check CH 1 and CH 2 VOLTS/DIV VAR
CH 1 OR X input connector via a 5042 cable. Do not use
Range
3% Accuracy
(Divisions)
3.88 to 4.12
a termination. a. Set:
VOLTSIDIV (both)
5
m
c. CHECK-CH 1 dc accuracy is within the limits
AC-GND-DC (both) DC
(Vertical Deflection) given in Table 4-2.
b. Change the generator output to 10 mV.
d. Repeat part c for each CH 1 VOLTSIDIV switch
setting and corresponding standard-amplitude signal in c. CHECK-Display increases to at least 5 divisions
Table 4-2. when the CH 2 VOLTSIDIV VAR control is rotated to
i t s extreme clockwise rotation.
e.
Select CH 2 VERTICAL MODE and set CH 2
d. Move the signal to the CH 1 OR X input connector
VOLTSIDIV switch to 5.
and select CH 1 VERTICAL MODE.
f. Move the signal to the CH 2 OR Y input connector.
e. CHECK-Repeat part c using the CH 1 VOLTSIDIV
VAR control.
g. CHECK-CH 2 dc accuracy is within the limits given f. Return both VOLTSIDIV VAR controls to their
in Table 4-2.
calibrated detents and disconnect the input signal.
h. Repeat part g for each CH 2 VOLTSIDIV switch
setting and corresponding standard-amplitude signal in
11. Check CH 1 and CH 2 Input Gate Current
Table 4-2. For greater efficiency, reverse the order of a. Set both CH 1 and CH 2 AC-GND-DC switches
checks (from bottom to top).
to GND.