Icom IC-M85

SECTION 8 BLOCK DIAGRAM
8-1
LPF
ANT
SW
ANTENNA
J1
PWR
AMP
PRE
DRIVE
RF
AMP
TX/RX
SW
BUFF
BPF
APC
CTRL
BUFFBUFF
BUFF
BPF
IF
AMP
LOOP
FIL
LPF
LIMIT
AMP
AF
AMP
VCC
BPF
BPF
AF
MUTE
S5V
AMP
SCR1.5V
X600
VCC
AF
AMP
BPF
BUFF
LPF
AF
MUTE
AF
MUTE
AF
MUTE
HPF
SCR3.3V
LPF
LPF
AMP
AMP
BATT+
BAT_D
BATT-
CPU5V
CPU5V
VCC
AMP
HPF
WDECV
RSSIV
LVIN
NOISEV
TEMPV
BATTV
BEEP
MICM
CTCSS
WETIN
VOXV
CDECV
TMUTE
CTFS
CTFS2
OPTV
DETM
LOWWNC
WNC2
R5C
T5C
DUSE
S5C
SCRM
SCTM
CSFT
AFIV
ADKEY1
ADKEY2
IPTT
EPTT
ATIS
CLORXD
CLOTXD
AFVS
TDETVXEMER
Q7
D10,D13
T5V
D8,D9
Q2 Q1
D16,D17
Q4
Q10Q12
Q11
Q14,D19,D20
IC4
PLL IC
PWR
DET
TX
MUTE SW
DE-
ENPHA
AF
REG
PRE
ENPHA
IF DET IC
D/A IC
EXTMIC
GND
BUFF
REG
5V
REG
R5
REG
T5
CPU
5V
CPU5V
EEPROM
CPU
IC401
LCD
VCO
Q6
D3,D4,D7
IC1
IC2
DS6
IC409
IC9
Q22
S5V
R5V
T5V
Q6,Q5,D7
IC4A
CLOTXD
TMUTE
RSSIV
DET
X401
SP
Q23~Q25
[LOCK]
MIC
IC6
FI1
Q8
D22
INMIC
PCON
TDETV
CLORXD
AFVS
IC7
MICON
PWR
CTRL
CLORXD
Q9~Q11
MC1
S1
PCON
LOW
INTSP
IC10A
SCRM
SW
SCRAMBLER IC
D/A / SCRAMBLER IC control BUS
BEEPO
MAIN
CHASSIS
R5C
T5C
S5C
RIPPLE
FIL
Q17
IC5
AF
SW
IC8
INTSP
EXTSP
Q21
D15,D18
VCO
SW
Q16
LV
Q15
VCO
SW
D21
LV
Q13,D23,D24
FM
MOD
LV
SW
IC3A
LVIN
R5C
R5V
LVA
TCXO
X2
LV
SW
IC3B
MOD
VCON
D/A IC
IC13A
CTCSS
SW
CDECV
IC13BIC13C
IC13D
Q362
IC10C
IC10B
WDECV
DETM
SCRM
CTFS
CTFS2
VOLIN
IC22
IC10D
VOLOUT
SQLIN
SCRM
SW
SCTM
MICO
IC11A
IC11B
ATISCTCSS
F T1 T2 LVA
MODIN
PLL DATA / IF IC control BUS
MICM
IC5A
IC5B
IC5C
VOXV
IC5D
SCRM
3.3V
SCRM
1.5V
IC601
IC602
PTT/SIDE
KEY
LED
BTD
SCR3.3V
SCR1.5V
BUFF
SHIFT
SW
R.Enc
EDATA,ECK
BATRXD,BATTXD
IC21,Q34,D30
D404
DIALA,DIALB
POSW
AFIV
Motion
Sensor
MTACT,
MTDATA,MTCK
IC20,IC23
BAL
F
BAL
KEY
LED
SW
ADKEY2
IPTT
ADKEY1
LIGHT
SW
LIGHT
IC6
Q3
I/O
EXPAND
LCD
DRIVER
BKLIT LEDG LEDR MICON INTSP EXTSP
IC9
IC2
AF
CLORXD,CLOTXD
XEMER
EPTT
OPTV
LCD DRIVER / I/O EXPANDER IC control BUS
FRONT
14-pin
T1
T2
DUSE
WNC
IC600
Q3,Q5,D23
D25
MICIN
IC4B,D8
Q1,Q2
LEDB
RESET
RESET
IC410
BEEP
BEEPO
Q26
IC15
NOISEV
COMMON LINE
RX LINE
TX LINE
CONTROL LINE