Icom IC-7300 Service Manual page 58

FRONT UNIT
J101
J2 J451
AFO
10 1
8V
9 2
MUDL
8 3
SQLS
7 4
MIC BOARD
PSEND
6 5
GND
5 6
GND 4 7
MICE
3 8
GND
2 9
MICI
1 10
J2
P1 J401
PHONE PHOE
1 1
GND
2 2
PHO
3 3
BOARD
PHK W1
4 4
8600036920
EX2500 P01*J01MA
J1
J71
GND
1
MFDAK
2
RIT BOARD
MFK
3
NC
4
MFDBK
5
GND
6
J1
J61
GND
1
GND
2
VR BOARD RFL
3
AFL
4
3R3V
5
3R3V
6
J1
J51
GND
1 6
PBBBK
2 5
PBT BOARD PBBAK
3 4
PBABK
4 3
PBAAK
5 2
PCLEK
6 1
J2
P1 J201
1 1
[MAIN DIAL]
2 2
3 3
4 4
DS1(LCD)
42
AFO
8V
MUDL
SQLS
PSEND
PSEND
GND
MICE
GND
MICI
PHOE
1
GND
2
PHO
3
PHK
4
DISPLAY BOARD
GND
MFDAK
MFK
NC
MFDBK
GND
GND
GND
RFL
AFL
3R3V
3R3V
GND
PBBBK
PBBAK
PBABK
PBAAK
PCLEK
SD BOARD
5V
1
MAINDBK
2
MAINDAK
3
GND
4
41
J601
GND
GND
PWRK
LRXD
LTXD
FRES
GND
GND
LCD_DE
LCD_VS
LCD_HS
LCD_ON
LCD_CLK
LCD_B7
LCD_B6
LCD_B5
LCD_B4
LCD_B3
To the MAIN UNIT
LCD_G7
LCD_G6
LCD_G5
LCD_G4
LCD_G3
LCD_G2
LCD_R7
LCD_R6
LCD_R5
LCD_R4
LCD_R3
GND
NC
3R3V
3R3V
3R3V
NC
5V
NC
8V
8V
8V
J421
MICI 1
MICE
2 To the MAIN UNIT
PHOE
3
PHO
4
J2
GND
12
SDWP
11
SDCD
10
SDDAT1
9
SDDAT0
8
GND
7
To the MAIN UNIT
SDCLK
6
VDD(3R3V)
5
NC
4
SDCMD
3
SDDAT3
2
SDDAT2
1
8-2