Step
Check
Tester
1
Power
Voltmeter
Supply
2
3
4
5
Capacitor
M ultiplier
Zero
6
Approximate
Counter
Bottom of
the Dial
Frequency
7
Bottom
Scope
of
the
Dial
Symmetry
8
Bottom
of
Cou nter
the
Dial
Frequency
(Lin)
9
Top
of
the
Scope
Dial
Symmetry
1 0
Top of
the
Dial
Frequency
(Lin)
1 1
1 2
1 3
1 4
1 5
16
1 7
Bottom of
the
Dial
Freq
u
e
n
c
y
(Log)
Scans by Artekmedia
=>
2011
Table 5-1 _ Alignment Procedure
Test
Point
Control Setting
C4 +
Paragraph 5.4,
Step
2
cs -
C7 +
C6 -
SW3 · B
Wiper
500 OUT
Dial: .004
HI
(terml n·
FREQ
M
ULT
:
1 0K
ate Into
500
FREQ MULT:
x
1 K
Dial:
4.0
Dial:
4.0
FREQ MULT: x 1 K
FREO MUL T:
x
10K
FREQ
MULT:
x 1 M
FREQ
M U L
T:
x
100K
FREQ MULT:
x
100
FREQ M U L
T:
x
10
FREQ:
x 1
Dial: .0004
FREQ MULT:
x
1 0K
SWEEP:
CONT,
STOP,
LOG
Adjust
R90
R37
R49
R37
R45
R19
C34
R86
R27
Result
+ 15 ± .75V
- 15
±
.75V
+ 5
± .25V
- 5
±
.25V
o ± 2V
20 ms
perlOd
Equalize ( + )
and
( - )
half
cycles
250
( + 501 - 0)
ma
periOd
Equalize ( + )
and
( - ) half
cycles
4
( ± .2)
kHz
40 ( ± .8) kHz
4
( ± .02)
MHz
400
( ± 8)
kHz
2.5
( ± .
05
)
ms
25 ( ± .5) ms
250
( ± 5)
ms
250
(
+
501
-
0)
ms
Remartt
Verity.
± 1 5V shou ld track
withi n 30 mV
Set
soope to ( - ) trigger;
display
one
full
cycle.
Al ign
positive
transition
to
center
of
screen (horizontal)
display
x
10).
Set scope to
( + ) trigger; adjust
R49
to
align
negative
transition
with
center
of
screen
See step
7
Verify
Verify.
If necessary,
trim
by
changing
value
of
C33
Verity
5-3
Содержание 188
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