HORIZONTAL
Adjustment Procedure—2230 Service
Equipment Required (See Table 4-1):
Calibration Generator (Item 1)
50 0 Cable (Item 8)
Leveled Sine-Wave Generator (Item 2) 50 0 BNC Termination (Item 12)
Time-Mark Generator (Item 3)
Low-Capacitance Alignment Tool (Item 18)
Test Oscilloscope (Item 6) Screwdriver (Item 19)
See ADJUSTMENT LOCATIONS 1, ADJUSTMENT LOCATIONS 3, and ADJUSTMENT LOCATIONS 4ft
at the back of this manual for test point and adjustment locations.
INITIAL CONTROL SETTINGS Storage
Vertical
POSITION (both)
VERTICAL MODE
X-Y
BW LIMIT
CH 1 VOLTS/DIV
CH 1 VOLTS/DIV Variable
Channel 1 AC-GND-DC
Horizontal
POSITION
HORIZONTAL MODE
A and B SEC/DIV
SEC/DIV Variable
X I0 Magnifier
B DELAY TIME POSITION
B TRIGGER
SLOPE
LEVEL
Midrange
CH 1
Off (button out)
Off (button out)
0.5 V
CAL detent
DC
Midrange
A
0.1 ms
CAL detent
Off (knob in)
Fully counterclockwise
OUT
Fully clockwise
STORE/NON STORE
SAVE/CONTINUE
PRETRIG/POST TRIG
ROLL/SCAN
1K/4K
POSITION CURS/
SELECT WAVEFORM
WAVEFORM
REFERENCE/
MENU SELECT
NON STORE (button out)
CONTINUE (button out)
POST TRIG (button out)
SCAN (button out)
4K (button out)
POSITION CURS
(button in)
WAVEFORM
REFERENCE
(button in)
PROCEDURE STEPS
1. Adjust Horizontal Am plifier Gain
(R740 and R730)
a. Connect 0.1 ms time markers from the time-mark
generator via a 50 fi cable and a 50 n termination to the
CH 1 OR X input connector.
b. Use the Horizontal POSITION control to align the
1 st time marker with the 1 st vertical graticule line.
A TRIGGER
VAR HOLDOFF
Mode
SLOPE
LEVEL
HF REJECT
A&B INT
A SOURCE
NORM
P-P AUTO
OUT
Midrange
OFF
VERT MODE
INT
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 of the time markers positioned at the
center horizontal graticule line.
5-19
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