Adjustment Procedure—2213 Service
TRIGGERING
Equipment Required (see Table 4-1):
Leveled Sine-Wave Generator (Item 2)
BNC T-Connector (Item 8)
50-£2 BNC Cable (Item 4)
Probe-tip-to-BNC Adapter (Item 9)
50-J2 BNC Termination (Item 5)
Screwdriver (Item 14)
10X Attenuator (Item 7)
P6120 Probe (provided with instrument)
at the back o f this manual for test point and adjustment locations
INITIAL CONTROL SETTINGS
PROCEDURE STEPS
POWER
ON (button in)
CRT
AUTO INTENSITY As desired
AUTO FOCUS Best focused display
1. Adjust Trigger Slope Balance (R482)
a. Connect the leveled sine-wave generator output via a
50-J2 cable and a 50-fi termination to the CH 1 OR X
input connector.
b. Adjust the generator output for a 50-kHz, 5-division
display.
Vertical (both)
POSITION
VERTICAL MODE
VOLTS DIV
VOLTS/DIV Variable
INVERT
AC-GND-DC
Midrange
CH 1
20 mV
CAL detent
Normal (button out)
DC
c. ADJUST—Slope Bal (R482) for a positive vertical
shift of 0.15 division at the sweep start when changing the
TRIGGER SLOPE switch from ”\_ to
S.
2.
Check/Adjust Auto Trigger Centering (R511
and R512) and TRIG'D LED Operation
a. Set:
Horizontal
POSITION
HORIZONTAL MODE
SEC/DIV
SEC/DIV Variable
X10 Magnifier
Midrange
NO DLY
20 Ats
CAL detent
Off (knob in)
TRIGGER LEVEL Fully clockwise
TRIGGER SLOPE
J~
b. Adjust the generator output for a 1-division display.
c. ADJUST—(+) Auto (R511) so that the display just
triggers on the positive peak of the signal.
Trigger
VAR HOLDOFF
A TRIGGER MODE
SLOPE
LEVEL
I NT
SOURCE
EXT COUPLING
NORM
AUTO
A .
Midrange
VERT MODE
INT
DC
d. Set:
TRIGGER LEVEL Fully counterclockwise
TRIGGER SLOPE "Y
e. ADJUST-(-) Auto (R512) so that the display just
triggers on the negative peak of the signal.
5-17
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