Scope Unit; Dc-Dc Unit - Icom IC-7700 Service Manual

W301-304
W140-141
W134-135
J 9 4 1
GND
22
J 7 6 2 J 8 0 1
NC
21
R8V
20
NC
19
T8V
18
NC
17
GND
16
MDAT
15
MCK
14
DRESL
13
GND
12
W1 0 RSTBR
11
RSTBT
10
BPST
9
ME T
8
MUTEI
7
EPAD
6
AGCI
5
AGCO
4
ALC
3
D R I V
2
GND
1
W331-335
8900017320
J 8 1 6
GND
1
GND
2
R8V
3
GND
4
T8V
5
GND
6
GND
7
W1 1 P S L
8
PST
9
CN2 2
10
CN2 1
11
PCK
12
PDAT
13
DRESH
14
UNLK
15
GND
16
W5
W221-229
W201-208
W117-118
W119-120
W121-122
W123-124
W211-214
W134-135
W136-137
W138-139
W271-274
W1
W2-5
OPC-1851
8900017510
MAIN UNIT
(page 10-8)
OPC-1840 OPC-1113A
8900015500
W2 W1
OPC-1832
8900017240
W8
J 1
SCP
FROM RF UNIT
J 11

SCOPE UNIT

SCPT
UNIT
FROM RF
(page 10-26)
J 3
SAD
FROM
PLL UNIT
OPC-1806
W7
8900017080
J 1 0 7 1
R E F I / O
TO MAIN UNIT
OSC UNIT
GND
C15V
J 1 0 7 2
+8V
10MHz (page 10-13)
GND
T O P L L UNIT
8 - 3
J 6 0 6 ( D I S P L A Y B O A R D )
NC
3 3
SPE
2 2
I N T S P
1 1
J 8 4 1
SPE
8 8
J 1 0 7 ( V R - A B O A R D )
I N T S P
7 7
AFE
AFE 6 6 1 1
AFO
AFO
5 5 2 2
PHE
PH E 4 3
4 3
PHO PHO
3 3 4 4
MICE
MICE
2 2 5 5
M I C I
M I C I 1 1 6 6
LOGIC UNIT
(page 10-2)
OPC-1833
8900017250
W9
J 2 0 1 3
GND
1
- 1 2 V
2
+5V
3
+3R3V
4
+8V
5
GND
6
OPC-942B
8900015120
W6
J 1
RF OUT
TO RF UNIT
J 2 0 1 7
DIGISEL UNIT J 2 0 1 8
4 4
+15V
3 3
3
J 2
+3R3V
2 2 RF IN 2
(page 10-16)
GND
1 1 FROM RF UNIT 1
S P 1
FRONT UNIT
y
OPC-1835 OPC-1841
8900017270 8900017330
W3 W4
W251-259

DC-DC UNIT

J 7
GND
1 1 1
- 1 2 V
2 2 2
(page 10-29)
+5V
3
3 3
+3R3V
4 4 4
+8V
5 5 5
+ 15V
6 6 6
+ 15V
7 7
GND
8
8
W241-243
W244-247
W271-274
REG UNIT
+ 48V
1 1
+ 48V
3 2 2
GND
2 3 3
GND (EP1)
1 4 4
W261-269