E.F. Johnson Company 5100 Series Service Manual page 100

U2
C18
1
IF
From Page 5
C19 39pf L7
270nH 2%
47pf
1008
3.3V Regulator
+5.5V
U12
3
nSHTDN
1
IN OUT
2
GND BYP
C147
+
1uf
ILC7081AIM533x
C126
100pf
TP12
TestPoint
C144
2.2nf
C134
.01uf
C143
TP10
100pf
TestPoint
R47 C119
100 82pf
Version C Board (see Section 1.13)
IF Filter
64.455 MHz
Crystal Filter
R1
18K
C3
L1
4
IN OUT
270nH 2%
L2 100pf 1008
270nH 2%
DSF753 C1 R3
1008 12K
NP
+3.3VXR VCO
5
C145
4
.01uf C132 C133
+ +
4.7uf L 4.7uf L
C110
.01uf
R48 C106
51
C130
.01uf
.01uf +3.3V
C131
L29
10uH L30
10uH
1206 .01uf FB4
C139 1206 FB
200pf
Digital
IF
C136 C135
100pf
100pf
1 47
MXOP IFIN
2 46
MXON CXIF
4 44
IF2N CXVL
5 43
1F2P LOP
7 U11 42
GPC LON
8 41
GCN CXVM
11
VREFP
12 AD9864 38
VREFN IOUTL
13
VREF
15 35
IOUTC FREF
19 33
CLKP SYNCB
20 31
CLKN FS
R55
23 30
SPI_CLK PC DOUTB
C142 100K
24 29
SPI_MOSI
PD DOUTA
100pf
25 28
RXBE_CS PE CLKOUT
VCO
R40
2.7K
L28
150uH
1210
C109
.1uf
8-24
+5VR
C6
.1uf
R2 64.455 MHz
560
Crystal Filter
C10
C4
.01uf NP
R4
120 U25
C9
IF Amp
1
IN
1 Q1 C7 180pf
941 L3
180pf
68nH
C8
1008
10pf
R6 C11
560
1000pf
3.3V Regulator
U13
+5.5V
3
nSHTDN
5 1
OUT IN
C140
4 2
BYP GND
+ C146
.01uf 1uf
ILC7081AIM533x
TP27
C128 C101 C102 C129
+ C98
10uf
.01uf .01uf .01uf .01uf
DEMOD
C120
.1uf
C121
.1uf
C111
TP30
TP7
.01uf
C107
1000pf
R49 100
C103
R35 .012uf
RF_FS
330
R34
RF_DAT+
330
R33
RF_CLK+
330
C223
NP
C224
NP C225
NP
16.8MHz
From Page 3
700/800 MHZ RF BOARD VER C SCHEMATIC (PAGE 1 OF 5)
C13
L4
NP 390nH
060 3
L5
4
OUT
NP
060 3
C20
DSF753 L16
.01uf
NP
0805
C21
NP
SHIELDED
AREA
TP1
C127
.01uf
C220
200pf
TP8 TP28
R41
15K
C221
200pf
LO2_RF
R38 R37 C100 C108
6.2K 22K 47pf
33pf
R36 R39
2.7K C104 D9 L27
4700pf 36K
MV2103 220nH
1008
C99 C210
.1uf .082uf
NOTE: Individual replacement parts are not available for the
RF board, so the entire board must be replaced if it is defective.
+5.5V 5V Regulator
U27 +5VR
3
nSHTDN
1 5
IN OUT
C176
2 4
GND BYP
+ C177
1uf .01uf C168
+
4.7uf L
ILC7081AIM550x
+5VR
C118
1000pf R45
0
C123
C122 10uf
1000pf R43
1K
C116
56pf
Q2
1
TP9
941
C112
56pf
C117 R44
56pf
3K
SHIELDED AREA