Performance Check Procedure-2225 Service
VERTICAL
Equipment Required (See Table 4-1):
Calibration Generator (Item 1
)
Leveled Sine-Wave Generator (Item
2)
50-R BNC Coaxial Cable (Item
8)
Dual-Input Coupler (Item
9)
50-R BNC Termination (Item1 0)
1 OX BNC Attenuator (Item 12)
BNC Male-to-Miniature-Probe Tip (Item 13)
INITIAL CONTROL SETTINGS
Vertical
POSITION (both) Midrange
MODE
CH 1, NORM
VOLTSIDIV (both)
5
mV
VOLTSIDIV Variable (both) CAL detent
Magnification (both)
Xl (CAL
knobs in)
AC-GND-DC DC
Horizontal
POSITION (COARSE and FINE) Midrange
MODE X 1
SECIDIV 0.5 ms
SEClDlV Variable CAL detent
MAG X5
Trigger
SLOPE
LEVEL
MODE
HOLDOFF
SOURCE
COUPLING
Positive
(I)
Midrange
P-P AUTO
MIN
VERT MODE
DC
PROCEDLIRE
STEPS
1. Check Deflection Accuracy and Variable
Range
a. Connect a
20-mV standard-amplitude signal
from the calibration generator via a 50-R BNC
coaxial cable to the CH 1
OR
X input connector.
b. CHECK-Deflection accuracy is within the
limits given in Table 4-2 for each CH 1 VOLTSIDIV
I
switch setting and corresponding standard-
amplitude signal. When at the 20-mV VOLTSIDIV
switch setting, rotate the CH 1
VOLTS/DIV Variable
I
control fully counterclockwise and check that the
display decreases to two divisions or less. Then
return the CH 1
VOLTStDIV Variable control to the
CAL detent and continue with the
50-mV check.
c. Move the cable from the CH 1
OR
X
input con-
nector to the CH 2
OR
Y
input connector. Set the
Vertical MODE switch to CH
2.
d. Set the calibration generator to output 20 mV.
I
e. Repeat Part b using the Channel 2 controls.
1
f. Set the calibration generator to 0.1 V.
Scam
by
ARTEK
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