Icom IC-M803 Service Manual page 68

• DIAL UNIT
TO LOGIC UNIT
J8501
GND
1
DIAL-A
2
GND
3
DIAL-B
4
GND
5
DIAL-P
6
• JACK UNIT
TO LOGIC UNIT
J8601
GND
10
GND
9
PHE
8
PHE
7
PHO1
6
PMUT1
5
PMUT2
4
PHO2
3
GND
2
GND
1
• MIC UNIT
TO LOGIC UNIT
J8562
GND
10
PTT
9
MICSW
8
PTTE
7
MIC
6
MICE
5
AFE
4
AF1
3
AF2
2
GND
1
• VOL UNIT
TO LOGIC UNIT
J8501
GND
1
VOL-A 2
GND
3
VOL-B 4
GND 5
VOL-P 6
ED09D21MFB14.5A6C102016
S8501
A
DIAL-A
B
DIAL-B
COM
DIAL-P
PHE
PHO1
PMUT1
PMUT2
PHO2
CP8561
CF20
S8501
ED09D21MFB14.5A6C102016
A
VOL-A
B
VOL-B
COM
VOL-P
J8602
11-2
MIC&HANDSET
J8561
MIC 1
7
MICE
7 1
MICSW 2
8
SPE
PTTE 6
6 8 2
3
AF1
4
AF2
PTT 5
5 3
4
Explanatory notes
TX Line
RX Line
Voltage Line