Dds Unit - Icom IC-7000 Service Manual

11-5 DDS UNIT

DDS UNIT (1)
J952
GND
8V EP964
GND
3R3V EP952
GND
5V EP951
GND
GND
DREF
GND
NC
8VA
EP981
8VA
NC
to
NC
R961 220
MAIN
REFCV
unit
3LOE
J2406
3LO
CP951
NC
3LOE
GND
LOST R951 220
PRES R952 220
1DST R953 220
PCK R954 220
PDT R955 220
1CN0 R956 220
1CN1 R957 220
3DST R958 220
GND
J951
GND
GND
DASK EP953
DOTK EP954
SDSS R959 220
SNDL EP955
SNDS R960 47
START EP958
MODA L953 100µ
RTKI EP956
EALC L954 100µ
KEY L955 100µ
BANV L956 100µ
AF L957 100µ
to DINO EP959
MAIN
DPTL L959 270µ
unit
SQLS L960 100µ
J2406
DOUT EP960
GND
GND
GND
14V
14V
14V
L962 270µ
14V
14V
L963 270µ
14V
GND
GND
GND
TUNER
J5 P1001 J1001
W1 L1001 220µ
ETKY
W2 L1002 220µ
ETST
W3 EP1003
ET14
W4 EP1004
ETE
J1051
EP1052
EP1051
ELE KEY
-
1 8VA
2 GNDA
4 BDTA
1 2 3 4
J1101
3 SEND1
ACC 8 14VA
5 6 7 8
7 SEND2
12 AFA
9 10 11 12
11 MODA
13 SQLA
13
10 FSKA
6 ALCA L1110 100µ
9 KEYA L1111 100µ
5 BANA L1112 100µ
DIND
PTTD
AFOD
J1151
SQLD
5 6
DOTD
3 4
GND
1 2
DATA
EP957
R962 0
DREF
3LO
R8 39k
LOST
PRES#
1DST
PCK
PDT
1CN0
1CN1
3DST
DASK
DOTK
SDSS
SNDL
SNDS
START
MODA
RTKI
EALC
KEY
BANV
AF
EP301
DIND
DPTL
SQLS
DOUT
DOTK
DASK
R1105
EP1101
100
R1103 100
EP1100 START
EP1106
EP1105
EP1107
L1103
L1105 100µ
100µ
L1106 100µ MODA
L1107 100µ
EP1108
EP1102
RTKI
EALC
KEY
BANV
D1102
CP1101 DAP202K
EP1103 DIND
L1152 EXCCL3225U DPTL
L1153 100µ AF
L1154 100µ SQLS
EP1104 DOUT
11 - 13
R5 100
X1
CR - 788
1 4
VCON VCC
2 3
Q1
GND OUT
2SC4215
C1
L1
0.047
0.15µ
C5
82p
R102 100
C126 C104
FI101
0.0047 0.0047
FL - 391
1
I O
C101
6p
3 4 5 6 7 8
Q101
2SC4403
C105 L105
0.001 1.2µ
EP251 R213
10
C254 0.1
R201
IC251
10
TK11218CM
C255 22
1 6
CONT VIN
2 5
GND GND
C202
3 4
N.BYPASS VOUT 7p
Q201
C252 0.1
2SC5226
C253 22 L204 C211
0.22µ 0.001
L52 10µ
IC52
SN74AHC2G04HDCT
Q1101
PCK 1 8
2SC4081
2 7
R1101
PRES# 3 6
1k
4 5
C1106
0.0047
R1109 47k
RL1101
ATN207 - K1
IC62
SN74LVC3G34DCUR
1DST 1 8
R1106
2.2k
SNDL 2 7
PDT 3 6
R1107 Q1102
4 5
2.2k
2SD1623
R51
1k
IC51
AD9833BRM
C54 C52
0.1 0.0047
1 10
COMP VOUT
2 9
VDD AGND
3 8
CAP/+2.5V FSYNC
4 7
R61 10k DGND SCLK
5 6
MCLK SDATA
IC61
SN74AHC1GU04DCK
1 5
2
3 4
Explanatory notes
R155 C151
10 0.0047
R162
15
R104 C120 C152 R160
2
15p 15
100 0.0047
Q151
2SC4673
C222 C203
4p 27p
C206 C208 C210 C218 L213
2.5p 4p 4p 6p 15n
Q211
2SC5226
EP302 EP304
PRES 1
C301 0.1 I/O UPDATE
2
DVDD
3
C302 0.1 DGND
4
AVDD
5
C303 0.1 AGND
6 IC301
AVDD
7 AD9951YSV
C304 0.1 AGND
8
OSC/REFCLK
SCLK C305 0.1 9
OSC/REFCLK
10
CRYSTAL OUT
11
R303
CLKMODESELECT
12
0
LOOP FILTER
C306 R304
0.1 1k
CS
SDIO
a
5V
8V_
BUS LINE1
3R3V
L53
C58 0.1 220µ
C60
R52 1k 3DST
120p
R53 1k 3PCK
R54 1k PDT
VOLTAGE LINE
CP151
L153 R158
47n 39
C155
8p
8
1 GND 7
GND OUT
2 6
IN OUT
3 5
IN GND
GND
4
FI201
NSVS776
DDS
UNIT (2)
C204
0.1
PRES
R316
36
RESET 10k
35
PWRDWNCTL
34
DVDD
33
DGND
32
AGND
31
AGND
30
AGND
29
AVDD
28
AGND
27
AVDD
26
AGND
25
AVDD
BUS LINE2
R317
1.2k
2LO