And Index (Table 5-2); Adjust Horizontal C433; Compensation - Tektronix CURVE-TRACER 576 Instruction Manual

Adjustment-Type 576
TABLE 1-1
ADJUSTMENT PROCEDURE RECORD AND INDEX
Step
Title
Adjust Required Page
No. Previous
Steps
1
Adjust -75 Volt Supply R721
1-3
2 Check Other Power Supply
Voltages
1-4
3
Check Power Supply Regulation
1-4
4 Adjust CRT Controls R891,R897,R685,R893 1
1-5
5
Adjust Balance of Horizontal R681, R650, R645 1, 4
1-7
Display Amplifier
6 Adjust Balance of Vertical R581, R550, R545 1, 4
1-8
Display Amplifier
7 Adjust Horizontal and R692, R592 1, 4, 5, 6
1-8
Vertical CRT Gain
8 Adjust Horizontal and R673, R573 1, 4, 5, 6, 7
1-8
Vertical Magnifier Gains
9
Adjust Horizontal Display R636, R638, R641 1,4,5,6,7,8
Amplifier Gains
1-9
10 Adjust Vertical Display R536, R538, R541 1,4,5,5,7,8
Amplifier Gains
1-9
11 Adjust Horizontal C433 1
Compensation
1-10
12 Adjust Zero Crossing and R8, R24 1
1-12
Step Delay
13 Adjust Zero Step Level R224, R97, R127
1, 12 1-12
14 Adjust Step Amplifier Gain R113, R86, R85 1, 12, 13
1-13
15 Adjust Current Balance R243 1, 12, 13, 14 1-13
16 Adjust Looping Compensation C301, C339, C341,
1
LOOPING COMPENSATION
1-14
Preliminary Adjustment Procedure
1. Remove the side panels and the Standard Test Fix·
ture from the Type 576.
warmup at an ambient temperature of +25°C ±5°C (+77°F
±9° F) before making any checks or adjustments.
2. Set the Line Voltage Selector assembly and the 60
Hz-50 Hz switch on the Type 576 rear panel in accordance
with the line voltage source to be used.
3. Connect the autotransformer and other test instru-
ments to a suitable power source. Connect the Type 576 to
the autotransformer output.
4. Set the autotransformer for the line voltage and range
chosen on the Type 576 Line Voltage Selector assembly.
5. Turn on the autotransformer, Type 576, DC volt·
meter and test oscilloscope. Allow at least 5 minutes
A-4
6. Set the instrument controls as shown in the I ist of
Initial Control Settings at the beginning of the procedure
and start the procedure with step 1.
Initial Control Settings
Type 576
GRATICULE ILLUM
READOUT ILLUM
INTENSITY
FOCUS
VERTICAL
DISPLAY OFFSET
Selector
CENTERLINE VALUE
Graticule Lines
Visible
Readout Visible
Fully Counterclockwise
Centered
.5mA
NORM (OFF)
5
ADD AUG 1984
I
...,•
I
I
I
I
I
I
I
I
I
I
I
I
I
I
...J
I
I