Tektronix 434, Инструкция по эксплуатации

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C a lib ra tio n —434
V E R T IC A L SYSTEM A D JU S T M E N T
E quipm ent Required
1. Standard A m p litu d e C a lib ra to r
7. A d a p te r (G R 874 and BNC female connectors)
2. Square-Wave Generator
8. 50 £2 BNC Term ination
3 . M e d iu m - F r e q u e n c y C o n sta n t-A m p litu d e Signal
9. BNC T C onnector
Generator
10. 3-Inch Screw driver
4. 24 pF In p u t N orm alizer
11. Low-Capacitance Screwdriver
5. 42-Inch 50 £2 BNC Cable (2 required)
12. T u n in g
T
ool
6. BNC 50 £2 10X A tte n u a to r
C o n trol Settings
Preset the in stru m e n t c o n tro ls to the settings given
under P relim inary C o n tro l Settings except as fo llo w s :
Sweep MODE
IN T E N S IT Y
In p u t C oupling
T R IG G E R L E V E L
A U T O
For visible display
GND
F u lly clockwise
17. A djust Channel 1 Balance
a. Change the CH 1 V O L T S /D IV sw itch fro m 10 m V to
1 m V .
b. C H E C K —C RT display fo r n o t more than 0.1 division
o f trace s h ift when sw itching fro m 10 m V to 1 m V .
Channel 1
Variable Balance
A d ju s t R212
Channel 2
Variable Balance
A d ju s t R312
In v e rt B alance
A d ju s t R 3 4 8
ao«c
. - --
Fig . 5-7. L o c a tio n o f C han nel 1 and 2 balance a d ju s tm e n ts .
c. A D J U S T -C H 1 STEP A T T E N B A L adjustm ent
(located on fr o n t panel) fo r m in im u m trace s h ift when
sw itching fro m 10 m V to 1 m V .
d. Set the CH 1 V O L T S /D IV sw itch to 10 m V .
e. R otate the CH 1 Variable V O L T S /D IV c o n tro l.
f. C H E C K —CRT display fo r n o t more than 0.2 division
o f trace s h ift when ro ta tin g the CH 1 Variable V O L T S /D IV
c o n tro l.
g. A D J U S T —Variable Balance adjust R212 (see Fig. 5-7)
fo r m in im u m trace s h ift when ro ta tin g the CH 1 Variable
V O L T S /D IV c o n tro l.
h. Set the CH 1 V O L T S /D IV sw itch to 10 m V and the
CH 1 Variable V O L T S /D IV c o n tro l to C A L .
18. A d ju s t Channel 2 Balance
a. Set the V e rtica l Mode to CH 2.
b. Change the CH 2 V O L T S /D IV sw itch fro m 10 m V to
1 m V .
c. C H E C K —CRT display fo r n o t more than 0.1 division
o f trace s h ift when sw itching fro m 10 m V to 1 m V .
d. A D J U S T -C H 2 STEP A T T E N B A L adjustm ent
(located on fr o n t panel) fo r m in im u m trace s h ift when
sw itching fro m 10 m V to 1 m V .
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