Adjustment Procedure—2213 Service
EXTERNAL Z-AXIS AND PROBE ADJUST
Equipment Required (see Table 4-1):
Leveled Sine-Wave Generator (Item 2) BNC T-Connector (Item 8)
Two 50-12 BNC Cables (Item 4) P6120 Probe (provided with instrument)
INITIAL CONTROL SETTINGS PROCEDURE STEPS
POWER ON
CRT
AUTO INTENSITY As desired
AUTO FOCUS Best defined display
Vertical
Channel 1 POSITION Midrange
VERTICAL MODE C H I
CH 1 VOLTS/DIV 2 V
CH 1 VOLTS/DIV
Variable CAL detent
Channel 1 AC-GND-DC DC
Horizontal
POSITION Midrange
HORIZONTAL MODE NO DLY
SEC/DIV 20 jus
SEC/DIV Variable CAL detent
Trigger
VAR HOLDOFF
TRIGGER MODE
TRIGGER SLOPE
TRIGGER LEVEL
I NT
SOURCE
NORM
AUTO
J
Midrange
VERT MODE
I NT
1. Check EXT Z-AXIS Operation
a. Connect the leveled sine-wave generator output via
a T-connector and two 50-12 cables to the EXT Z-AXIS
INPUT connector on the rear panel and to the CH 1 OR X
input connector.
b. Adjust the generator controls to produce a 5-volt,
50 kHz display.
c. CHECK—For noticeable intensity modulation. The
positive part of the sine wave should be of lower intensity
than the negative part.
d. Disconnect the test setup.
2. Check PROBE ADJUST Operation
a. Set:
C H I VOLTS/DIV 10mV
SEC/DIV 0.5 ms
b. Connect the P6120 Probe to the CH 1 OR X input
connector and insert the probe tip into the PROBE
ADJUST jack on the instrument front panel. If necessary,
adjust the probe compensation for a flat-topped square-
wave display.
c. CHECK—Display is 5 divisions ±1 division (4 to 6
divisions).
d. Disconnect the test setup.
5-20
REV NOV 1981
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