Motorola R-20018 Manual page 95

Communications system analyzer
Table of Contents

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FI10M
CONTROL
SHEET
2
. , P1
TRIG LEVEL
5/
I
I
. ,
I VERT FROM RNG SW
4
I
• ,
~
VERT CHAR SYNC
0/
I
7'
' /
2
9
1
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4
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4/
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82
8 1/
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'
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SPECT
ANA
VERT
455KHz IF
LINE1
BFO FREO CNTL
BFO ON/OFF CNTL
1'
I DISPERSION SWP RTN
' /
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r
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6
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SYNTH SWP SYNC
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·'
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HORIZ CHAR SYNC
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95
83
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t-
L...
r:
r
,...-------
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SCOPE VERT CONT
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y
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l 13
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CHAR
SWP
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CNTR
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-
DUAL
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DSPL
01. 2, U14
.-
CONT
L_
_ _ uto-_g_ _ _
SSB
DET
455 KHz
BFO FREO
I
PLL
us
455KHz
-
-----
U12. 51. 59
SYNTH
SWP
GEN
HORIZ
CHAR
SWP GEN
U59. 60
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L_:COPE HORIZ CONT
-------------
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I
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CHAR GEN Z-AXIS
I
87
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SWP BLANKING
'/
88
Figure 9-1.
Scope/DVM Control Module A3
Block Diagram (Sheet 1 of 2)
-·-- - - - - - - - - - - - - - - ,
I
U6
SYNC
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r-
DET
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U3. 4
U4.5
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VERT CHAR
f--
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SWP GEN
SCOPE
VERT
I
'
SEL
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VERT
t
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SWP
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CONT
U11
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' '
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-
----------
J
U9
IFIBFO
FREO
SEL
SWP
WIOT~
-
----..,
sa
'
U52
Ll
U51. 52
SCOPE
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HORIZ
SEL
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L..
HORIZ
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sw
CONT
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_ _ _ U56 _ _
j
r - u s s - - - - ,
I
Z-AXIS
I
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CONT
SCOPE Z-AXIS
I
L ___
___!.:.0!:!!... _
J
TRIG PLS
P1
1'-.
12
SYNC PRESENT
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76
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VERT TO SCOPE AMPL
I "
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74
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TP9
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y
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CHAR GEN RST
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(
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22
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SSB AUDIO
I
-
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'-.I
3
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IFIBFO FREO
I /6
'
,.
5
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DISPERSION SWP
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63
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INT SCOPE HORIZ
I
'
7
2
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SCOPE MODE EN
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I
I
I
I
SCOPE Z-AXIS
:
9 0
8521-3
1
J
l
I
. I

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