EasyManuals Logo

IFR COM-120B Service Manual

IFR COM-120B
182 pages
To Next Page IconTo Next Page
To Next Page IconTo Next Page
To Previous Page IconTo Previous Page
To Previous Page IconTo Previous Page
Page #63 background imageLoading...
Page #63 background image
r
1
2
3
4
5
6
7
L
A B c
o
E
GEN./RECV./ANAL
YZER BLOCK DIAGRAM
(e)
:'1_
(_)
G
H
1:I5.5YHz
(e)
__
;l:lcS
(_)
J
K
(e)~=
"'IdEI
l
GENERA
TOR
TRAY
AU
D£S
061151117
':I5.5YHz
~
-.
OEV
(G)
~=:
5kHz
D£V\
GENERATOR
OUTPUT
50Hz
:2\
~:T
ATTUATi-
-
...
W_3_'_+-IJtL~
~14--~W_3C-+-;x
R
GENERATOR
CONVERTER
REF
D£S
~A5A19
r
Wl8
L
5kHz
D£_V
______
........
tRACKING
MODE
AMP
I41t-Wl_8_.....
(e)
N<R~OOE
..A---·--r®---'I
~I~I~I~
~r~-~-
L
AMP
R
10c18
POWER
TERMN
~
~
~
8d8
PAD
lCHz
LPr
T/R
(~IIolL£'<fi~_-_-_~
___
Wl_+-IJ~REFDES
~A~
~
1299MHz
BPF"
89~pr
BALAlICED R :
-=-
RF
OUlPlJT
(e)/
~.
TinT
8
~-----
r
DE~~<R
I
:;0;1':':
IRf
LEVEd
~
AUX
DC/CONTROl
ATlENUATCR
DC/CONTROl
J r
TONE-I_
~
I
OETECTOP
I
~
1DIP
SENSOR
CONlRCll
L-
___
+_
L---------'
L-
Rf
LE'IIEl
ALARM
AUX
wn--2JdIIm.. . - JC.S I
.......
"W2
+ (TO PROCESSOR)
Rf
OUT
~
I I
·~TEIIP
IIU
DES
~5A21
f
L-
K}w
3d9 I
POWER
DETECT
I
~
W36
-.J
I
/
W35
LE"o€L-+JdIIm
W27
OPnONAL
AMP
PellER /
L£)jEL
o -
.\OIlC
(e)~/
W4
1:15._
-5O<8n
(0)
1011Hz
+5
-
+9rdBM
\
TCXO
I
CP::AL
r~
"-
lOUHz
_
W29
...
.19
EXTERNAL(r~-~~
________________
~
____________
~
______________
+-_.
lDUH: g
(0)
1011Hz
/
+3
-
+tCkllrn
TO
MOTHERBOARD
AUX
PORT
ALARM
I
Wl2
1
1011Hz
W20
MUL
TlPUER
I
XlI
.,
..
IOUHz
WI)
AlIIP
AMP
WlO
I-
OIVlDER
AMP
,
....
REF
FREQ
+10
.-?3
1~z
(0)
I1OWo.z
(0)
1
-5
- +JdIIm
1st
LO
Wl9
,,",1-'
(0)
+5
-
+1_
~YN
THE;SI
ZE;R
TRAY
2nd
LO
Wl6
.........
121_
(0)
-I.
--_
1011Hz
(0)
(0)
+7
-
+1::\
U
AM
SYNlHESIZER
MODULA
nON
..
.-::AM~-II--_Ht...
r
__
I_O_M_H_Z
__
W_2_0_
.....
-.;
31.3MHz
TO
35.3MHz
(G)
"'"
W21
Wl7
Wl9
2.5kHz
INCR.
SWEEP-IN
tRACKING
MODE
NORUAL
MOOE
122.3MHz 8:::
BPr
r-x=..
x
3rd
LO
FINE
LOOP
R
r-
- - -
....
- - - - -
-,
L
1ST
LO
1300MHz
TO
2289MHz
2MHz
INCR.
REF DES Q6A5A17AI
lMHz
J -
5"""
(0)7
W23
I
lMOOULATEO
I
veo
I
SWEEP
(0)
./'
-8dBnt
~5d!I
W21
r
P
REF DES
06AIAt6
r-
_
TO
8AS£B.UC)~
W13
/
+1
-
+tJdllm
"'2
REF
D£S
06A1A!J
Wl6
Wl4
/
.7
-
+IJd11m
Wl1
I
110MH,
I
21._.
(0)
./'
-4
- +2d1lm
r-~~t------------,~~~------~~~~~~-,-----t::::::::::::::::~~--~·~il~·2
...
~P~~1
RAMP
L------
I
GENERATOR
I
SWEEP
1'4-
....
-t----------I--t
rYNTH
~
4.C
_
W22
SCOPE/DW(
Lei
....
~
__
-t
IN
¥
RF
INPUT
(R)
FR£o-150.5UHz
lHEL--5OdBm
ATT.
F>I
MOO.-5IoHz/tkHz
TONE
W3
ANTENNA
NPUT
. ,
(G)
G!N£.A;OR
(R)
Rt.CIE'IER
(0)
OSCILLATORS
R'="CE:vE:R
TRAY
RU
D£S
~~g
'iYNTH£5JZER
'~Hl
-
2298MHz
2M"z
""'CR
~
I
~
O(S
I
05A~~5Al
I
I
~
I
I
I
1st LO
~
I
REF
rES
06A5AtSA2
I
§H'CC
'OU")§}
I
~
XII
~
I
l10MHz
1210MHz
I
BPr
BPr
I
L
1210MHz
W9
-
t2tOllH.
(0)
+S
-
+1Od3m
___
2nd
LO
SYNTHESIZER
COARSE
LOOP
55.9-57.9MHz
2.5kHz
INCR
W7
~Q
P.fF
D£S
~A5All1Al
~
SYNTHESIZER
FINE
lOOP
21.4IoIHz
-
21.4024101Hz
100Hz
INCR
Wl5
BLANK
VCO
f---
121.3MHz
TO;'
-I[
l
123.3MHz
'---I
__
~L
~
X
AMP
R
....
~'
...
~
89MHz
±
6101Hz
W1
71.3
TO
Wll
19.3MHz
""--
Wl5
t
...........
78._.
(0)
~------------------------~~-d~LO
+5-
+~m
----....... e9.5MH. (R)
-50dElm
Hd8
~d
LO
./
n.8WHz
+5
- +tOdllm (oj
WlO
1010tHz
(0)
/"
+7
- +13dBm
700kHz
/ .411PP
~
RF
ERf
W6
TO
DIG
I
I
I
I
FRONT
END
LlNU:~og~:C~ITI
~_
REF
Df:S
06A5o'o9At
:OSOUH.
LPF r
[I
AMP
W()NIT(l<l W4
GJ-1§®
lliB>*
~-------t---
-+
~
xL.
8::::;
AMP
"L
x
89MHZ
BPF
IF
AMP/DEM~D
cx.....
~~:z.
--l
FM
L
REF
DES
06A5A9A2 ;::s
'-l
LIMITER
r
L
10
7MHz
~
15kHz
.~
FM
DETECT
I
I
I
T
~
ANT.
/
W3
I
OVERLOAD
I
Od8/JCd8
1st MIXER
1299MH.
BPF
L&>-
(~)
1!>O.SUMl
2nd
MIXER
AMP
_~
PROTECT
I I
I
l.:
TO
CONTROLLER TRAY
t
REG.
ALAR'"
W5
-
~
~
~:
MIX:R
AMP
-J
~
BPr
AMP - R x
ifMP
DC
FM
~
OPTIONAL
.~
FILTER
.-
AUTO
AGC
I AM I J
""'
66
SMH, - 50dBm
+9
-
+t4d9
CI\IN
INORM~~SCAN
IDETECTORi
TMANUAL
AGC
COM-1208
CQNPOSITE
0000-0642-500
FJEV
A SHtET J
OF
6
Scans by ArtekMedia © 2008

Other manuals for IFR COM-120B

Questions and Answers:

Question and Answer IconNeed help?

Do you have a question about the IFR COM-120B and is the answer not in the manual?

IFR COM-120B Specifications

General IconGeneral
BrandIFR
ModelCOM-120B
CategoryMeasuring Instruments
LanguageEnglish

Related product manuals