Tektronix 2215A, Инструкция по эксплуатации

Страница: 61 / 206

Adjustment Procedure— 2215A Service
place instructions located in the ‘ Maintenance’ section of
the manual.
All test equipment items listed in Table 4-1 are required
to accomplish a complete Adjustment Procedure. At the be­
ginning of each subsection there is an equipment-required
list showing only the test equipment necessary for perform­
ing the steps in that subsection. In this list, the item number
following each piece of equipment corresponds to the item
number listed in Table 4-1.
Before performing this procedure, do not preset any in­
ternal adjustments and do not change the — 8.6-V power-
supply adjustment. Altering this adjustment may necessitate
a complete readjustment of the instrument, whereas only a
partial adjustment might otherwise be required. Only change
an internal adjustment setting if a Performance Characteris­
tic cannot be met with the original setting. If it is necessary
to change the setting of an internal adjustment, check Table
5-1 for possible adjustment interactions.
Before performing any procedure in this section, set the
POWER switch to ON and allow a 20-minute warm-up
period.
The most accurate display adjustments are made with a
stable, well-focused, low-intensity display. Unless otherwise
noted, adjust the INTENSITY, FOCUS, and TRIGGER
LEVEL controls as needed to view the display.
Table 5-1
Adjustment Interactions
A d j u s t m e n t s o r
R e p la c e m e n t s M ade
A d j u s t m e n t s A f f e c t e d
TR
A
C
E
A
L
IG
N
M
E
N
T
GEOMETRY
3
3
N
V
1
V
8
0
0
a
u
is
/Z
C
H
t
V
AR
B
A
L
A
N
C
E
M
F
/L
F
G
A
IN
B
A
L
4
F
R
E
Q
C
O
M
P
V
E
R
T
IC
A
L
G
A
IN
i
A
T
T
E
N
U
A
T
O
R
C
O
M
P
1
D
E
L
A
Y
L
IN
E
C
O
M
P
1
CH
2
H
IG
H
FR
E
Q
MATC
H
1
H
O
R
IZ
G
A
IN
1
H
O
R
IZ
X
I0
G
A
IN
1
M
A
G
N
IF
IE
R
R
E
G
IS
T
R
A
T
IO
N
1
D
E
L
A
Y
D
IA
L
T
IM
IN
G
1
H
IG
H
-S
P
E
E
D
T
IM
IN
G
1
5
n
s
T
IM
IN
G
AND
L
IN
E
A
R
IT
Y
1
1
T
R
IG
G
E
R
O
F
F
S
E
T
1
T
R
IG
G
E
R
S
E
N
S
IT
IV
IT
Y
1
S
L
O
P
E
B
A
L
A
N
C
E
I
P
-P
AUT
O
T
R
IG
G
E
R
C
E
N
T
E
R
IN
G
- 8 . 6 V POWER SUPPLY
1
■
TRACE ALIGNMENT
1 GEOMETRY
2 /5 m V DC BALANCE
■ ■
CH 1 VAR BALANCE
|I
M F /L F G A IN BAL 4 FREQ COMP
| I
V E R T IC A L G A IN
I
ATTENUATOR COMP
| I
DELAY L IN E COMP
m
_
H O R IZ G A IN
■ I
_ _
I I
H O R IZ X 1 0 G AIN
1
I
_
H IG H -S P E E D T IM IN G
1 1 _
TRIGGER OFFSET
I I ■
TRIGGER S E N S IT IV IT Y
I
i
_
SLOPE BALANCE
_
$
_
CRT REPLACEMENT
Lu
□
■■
□
5-2
4206-20