Filter Unit - Icom IC-718 Service Manual Addendum

SECTION 9 BOARD LAYOUTS
9-1 MAIN UNIT
• TOP VIEW
to PA unit J6
WS1
to FILTER unit J1
P2
10
9
T13V
GND
REF
L3
W7 W6
FOR
L5
1st LO
L4
L2
from PLL unit
L1
L6 J4
2 P1
1
1LOE 2
J4001
CHASSIS 1
1LO
J1 J201
10
T13V
GND
REF
1LOE
L3
FOR
L5
L4 1LO
L2
L1
L6
1
J4201
1 29
2 30
to LOGIC unit J7
to FILTER unit J3
WS3
P6
W11 W10
SEND ALC
P5
CHASSIS
J701
2 1
J4401
1 29
J401
from PLL unit
J1
2nd LO
2 30
to LOGIC unit J6
9 - 1
ACC J4651
8V 1
GND 2
BDT 4
4 3 2 1
SEND 3
13.8V 8
8 7 6 5
7
AFO 12
12 11 10 9
BFO
MOD 11
13 from PLL unit J2
SQLS 13
BFO
FSKK 10
ELEC-KEY
BFOE
KEY 6
J2001
BAND 9
ALC 5
13
10 11 12
9
5 6 7 8
1 2 3 4
J3601
3 2 1
RED BLACK
3 1
CHASSIS
FAN MOTOR MF1
Optional
unit UT-106
9 1
1
SPO
SPO
J2603
SPE
SPE
2
1
10 2
EXT SP
2
REMOTE
J4502
SPE
ESPO
CIV
SPO
SPO
CIVE
SPE
7
1
1
1
SPEAKER
SP1
Optional
unit UT-102
8
7
GND SPCH
8
5V SPCE
J2501
SBSY MC
MDA SST 2
2 1
J4101
1
TEMP
1 TEMP
2
KEY 2
KEY
STRT
STRT HV HV
ICH
PAT8
ICH
ICL
PAT8
14V
ICL
14V
14V
14V
14V 14V
14V
14V
PWS
14V
GND
14V
15 GND
PWS GND 16
GND
to PA unit J3
15
GND
GND
16
1
J2601 DOUT
DOE
1
J2602