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Equipment Required (see Table 4-1):
Calibration Generator (Item 1)
Leveled Sine-Wave Generator (Item 2)
Time-Mark Generator (Item 3)
50-12 Cable (Item 4)
See
a t the back o f the manual for test points and adjustments locations.
INITIAL CONTROL SETTINGS
Vertical
POSITION (both)
VERTICAL MODE
BW LIMIT
CH 1 VOLTS/DIV
CH 1 VOLTS/DIV Variable
Channel 1 Input Coupling
Horizontal
POSITION
HORIZONTAL MODE
A and B SEC/DIV
SEC/DIV Variable
X I0 Magnifier
B DELAY TIME POSITION
B TRIGGER
SLOPE
LEVEL
A TRIGGER
VAR HOLDOFF
Mode
SLOPE
LEVEL
A&B INT
A SOURCE
HORIZONTAL
ADJUSTMENT LOCATIONS 1
Midrange
CH 1
Off (button out)
0.5 V
CAL detent
DC
Midrange
A
0.1 ms
CAL detent
Off (knob in)
Fully counterclockwise
OUT
Fully clockwise
NORM
P-P AUTO
OUT
Midrange
VERT MODE
INT
Adjustment Procedure— 2215A Service
50-fi BNC Termination (Item 5)
Test Oscilloscope (Item 11)
Screwdriver (Item 13)
Low-Capacitance Alignment Tool (Item 14)
and
ADJUSTMENT LOCATIONS 3
PROCEDURE STEPS
1. Adjust Horizontal Amplifier Gain (R740 and
R730)
a.
Connect 0.1-ms time markers from the time-mark
generator via a 50-0 cable and a 50-0 termination to the CH
1 OR X input connector.
b.
Align the first time marker with the first (extreme left)
vertical graticule line using the Horizontal POSITION
control.
c.
ADJUST— A Sweep Gain (R740) for 1 time marker
per division over the center 8 divisions.
NOTE
When making timing measurements, use as a refer
ence the tips o f the time markers positioned at the
center horizontal graticule line.
d. Set the HORIZONTAL MODE switch to B.
e. ADJUST— B Sweep Gain (R730) for 1 time marker
per division.
5 - 1 3
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Troubleshooting
