Block Diagram - Icom IC-M85 Service Manual

SECTION 8

BLOCK DIAGRAM

FRONT
DS6
IC9
LCD
LCD
DRIVER
Q3
LIGHT
LIGHT
SW
Q1,Q2
LED
LED
SW
ADKEY1
KEY
I/O
ADKEY2
EXPAND
PTT/SIDE
KEY IPTT
IC2
[LOCK]
CLORXD
S1
Q6,Q5,D7
VCC
AF
AFVS
REG
CHASSIS
SP
IC8
INTSP
AF
AMP
AF
SW
IC6
INTSP
AF
AMP
EXTSP
IC5
VCC
AF
CLORXD,CLOTXD
BUFF
Q9~Q11
14-pin
EPTT
OPTV
IC4A
EXTMIC
AMP
GND
MC1
INMIC AF
MUTE
IC7
MIC
MICON
IC4B,D8
COMMON LINE
VOXV AMP
RX LINE
TX LINE
CONTROL LINE
IC3A
MAIN
LVIN LV
SW
IC4
PLL IC
BAL
VCON
BUFF TCXO BPF
F
IC15
X2
IC10B IC13D IC13A
AF
CTCSS
HPF
SW MUTE
CTFS2
DETM
IC13C IC13B
AF
SCRM
LPF
MUTE SW
IC10C
WDECV CTFS
SCRM
DE-
ENPHA
IC10D
AMP
BEEPO
X600
IC5D
AMP
SCRAMBLER IC
IC600
SCTM
XEMER
CLOTXD
SCRM
SW
CLORXD
IC11B
MICIN
D/A IC
MICO
IC11A
AF
PRE
MUTE
ENPHA
MICM
CTCSS
S5V Q17 Q16
RIPPLE
VCO
FIL
SW
VCO Q14,D19,D20
D22
Q12
LV BUFF
LOOP
FIL
D21
LV
Q13,D23,D24
Q11
BUFF
IC3B D25
LVA LV FM R5C
VCO
SW MOD
SW
Q15
MOD
PLL DATA / IF IC control BUS
IC2
IC10A
Q7
DET IF
IF DET IC
HPF
AMP
RSSIV
NOISEV
Q362
CDECV
LPF
IC22
VOLIN
BEEP
D/A IC
VOLOUT
BEEPO
XEMER
SCR3.3V SCR1.5V BEEP
MICM
SCTM
CSFT
CTCSS
MODIN
WETIN
IC6
DETM
SCRM
IC5A
WNC
LIMIT CTFS
LPF
AMP
IC5B CTFS2
WNC
IC5C WNC2
LPF ATIS
D/A / SCRAMBLER IC control BUS
DUSE
LCD DRIVER / I/O EXPANDER IC control BUS
8-1
R5V
D16,D17
Q10 Q4 Q2
TX/RX PRE
BUFF BUFF
DRIVE
SW
IC1
PCON
APC
CTRL
LOW
TX TMUTE
BPF
MUTE SW
Q8
FI1 D15,D18
Q3,Q5,D23
RF
BPF BPF
AMP
Q6
T2
IC9
CPU5V S5V
CPU
5V
IC601
SCR3.3V R5V
SCRM
3.3V
IC602
SCR1.5V T5V
SCRM
1.5V
TDETV
OPTV DUSE
WDECV T5C
RSSIV R5C
LVIN S5C
NOISEV ADKEY1
TEMPV ADKEY2
CPU
IC401
BATTV IPTT
VOXV EPTT
CDECV ATIS
TMUTE CLORXD
LOW CLOTXD
AFIV AFVS
ANTENNA
J1
D8,D9
Q1
PWR ANT
LPF
AMP SW
T5V
PWR TDETV
DET
D3,D4,D7
D10,D13
BPF
T1
S5C
VCC
Q26
BATT+
REG PWR
5V CTRL
Q23~Q25
BTD BAT_D
Q22
REG
R5
R5C
BATT-
CPU5V
Q21
AFIV
REG
T5
T5C
CPU5V
IC409
EDATA,ECK
EEPROM
IC21,Q34,D30
BATRXD,BATTXD
BUFF
IC410
RESET
RESET
DIALA,DIALB
R.Enc
IC20,IC23
MTACT,
MTDATA,MTCK
Motion
Sensor
D404
SHIFT
X401
SW