Icom IC-756PRO III Service Manual page 74

• DISPLAY BOARD (TOP VIEW)
J601
10 5VF
PITL
PB1B
PB2B
2 GND
J531
1 NC
L5V 2
105
HD
VD
NC
POLC
NC
NC
100
GND
NC
L5V
RL
GL
BL 95
VCOM
GND
NC
L/R
U/D
NC 90
NC
N/P
23 L18V
-15V 24
85
to LCD
J221
80
16 SPLK
1K 15
3K
7K
10K
75
14K
18K
21K
24K
28K
50K
70
GENK
FINK
MPWK
2 MPRK
GND
1
65
to TEN-KEY
board J1
60
J241
24 MUPK
MDNK 23
MWK
MCLK 55
TSK
XFCK
LOCK
PBTK
NOTK
50
KI4
5VF
KI3
LDV
LOCD
TXD
45
RXD
NOTD
PBTD
GND
GND
GND 40
GND
2 GND
GND 1
to TEN-KEY
35
board J2
30
J120
1 RUP
5VF 2
25
RDN
GND
GND
GND
GND
GND
20
9 GND
GND 10
to RIT board J1
15
10 1
5
7
0
0 5 10 15 20 25 30
J101
4 GND
MDN
to MAIN
MUP DIAL
1 5VF
1 2
NOTL 9
J801
PB1A
to PBT
PB2A to LCD
board J1
GND
GND 1
8 1
9 16
26 25
1
50
51 100
75 76
1 32
14 8
14
1 7
16 17
8
35 40 45 50 55 60 65 70 75 80 85 90 95
8 - 3
1 8
4 5
5 4
8 1
1 8
4 5
100 105 110 115 120 125 130 135 140 145 150 155 160
Horizontal
15 1 23
J201 J301
J802
NC 1
CFL- 2
to MODE
board J1 to LCD
16 2 24
165 170 175 180 185 190 195 200 205 210 215 220 225
1 2 24
J321
to MAIN-A to MAIN-A
unit J891 unit J861
2 1 23
J452 J451
1 SSP 1 SPE
NC NC
to MAIN-A
3 SSPE NC unit J352
to CHASSIS 4 SSP
SP1
J941
9 1
10 2
to PHONE
board J1
J921
10 GND
GND 9
GND
GND
GND
GND
GND
GND
2 DOT
DASH 1
to KEY board J1
J322
1 MICI
M8V 2
MUD
SQLS
MSND
GND
MMICE
AFO
9 NC
NC 10
to MIC board J2
230 235 240 245 250 255