Icom IC-PW1 Service Manual Addendum page 83

Oct. 2008
SECTION 9. BOARD LAYOUTS
TO SPLITR UNIT TO SPLITR UNIT
3 1 6
J3
EP4
9
J10
1 10
GND GND
GND GND 9
FANV FANV 10
CI5 CI5
TO JACK1 J2 CP47
ALC2 ALC2
UNIT J9 CP46
ALC1 ALC1
CP45
SEND2 SEND2 CP41
CP42
SEND1 SEND1
CP43
1
13_2 13_2 CP44
13_1 13_1
10 1
J8 P1
1 1
BAL BAL 1
TO
J17
COMBINR GND GND
UNIT J8
GND GND 3
3 3
J1 P1
1 1
T13 T13 1
TO
FOR FOR
FILTER
UNIT J1
REF REF
GND GND
4
19M 19M
35M 35M
J8
7M 7M
TO 10M 10M
FILTER
14M 14M
UNIT
18M 18M
24M 24M
50M 50M
GND GND 13
13 5 1
EP6 EP7
5 1
P1
J9
5
1
TO ANT-SW UNIT
J1
J14
2 10
1 9
9
1
10 2
TO TUNER UNIT
(CONNECT BOARD J1)
• PA-1 UNIT
(TOP VIEW)
TO PA4 BOARD J3
9 1
J5
MF2 1
GND
J4
–
M
10 2
PAF 3
PA1 BOARD J4
J5
J4
J1
J3
2 10
J3
1 9
TO SPLITR UNIT J11
TO TUNER UNIT TO TUNER UNIT TO TUNER UNIT TO TUNER UNIT
(DET BOARD) (C-NET BOARD) (L-NET BOARD) (H-NET BOARD)
1
6 1
5 1 6 1 3 1
J9
J1
J1 J1 J1
P1 P1 P1 P1
P1
5 1 6 1 3 1 8 1
1
J6 J19 J22 J21
5 1 6 1 1 8 1
1
7
6
5
4
3
2
1
2 4 6 8 10
1 3 5 7 9
1 12
J4
1 12
P1
TO PX1981 (OPTIONAL UNIT)
TO PA3 BOARD J3
TO PA2 BOARD J3
NONE
9 2 1
9
9
J4
J4
10
1
10 2
10
PA4 BOARD J4 (each PA bords)
PA3 BOARD J4 (each PA bords)
PA2 BOARD J4 (each PA bords)
EP2
EP1
(each PA bords)
PA4 PA3 PA2
BOARD J2 BOARD J2
BOARD J2
J3 J4 J2
TO COMBINR UNIT
13
• FILTER UNIT
(TOP VIEW)
J20
7 19M
GND
GND
CI1B
TO TUNER UNIT
CI2B
(C-NET BOARD J2)
CI3B
VHCI
TU2
1
J18
5
5
TTRC
ISTA
TO TUNER UNIT
IKEY
CPU WRITE
13.8
35M
GND 1
9 P3 9 P4
9
GND GND
STR2 STR2
DATA2 DATA2
S12 S12
TO SW
J3 BOARD
H12 H12
J1
STR STR
DATK DATK
DATA DATA
7M
CLK CLK
1
1 1
14M
10M
18M
GND
1
J4
2
TO PX-1981
GND
(OPTION)
EP2
TO PA-2
BOARD
EP1
24M
TO PX-1981
HV
(OPTION)
J2
TO PA-4 TO PX-1981
GND
BOARD (OPTION)
50M
EP2
EP2
TO PA-3
BOARD
EP1
TO PX-1981
EP1 HV
(OPTION)
PA1
BOARD J2
J1
TO
SPLITER
UNIT J8
GND
REF
FOR
T13