Block Diagram - Icom IC-M602 Service Manual

SECTION 10

BLOCK DIAGRAM

ACC UNIT
HM-136
FRONT UNIT SP1
SQL BOARD VR BOARD
DIAL BOARD
S1
UP
5V
E
DN
ENCODER
SQLV
DS1
LCD
MODULE
KEY
BOARD
LCD
CONT
X1
CR-691
(9.8304MHz)
Q15, Q16 2SC4116
Q17 2SB1132
IC2
DIM
S-80942CNMC-G9C
IC1
CONT
HD64F2633F25
RESET
CPU
Q11 DTC144EU
D2 DA204K
IC4
HN58X24128FPI
CLONE
CI-V
I/F
EEPROM
Q1 2SA1362
Q2 DTC144EU
D1 DAN202K
BACK
UP
LOGIC BOARD
S1
POWER
MAIN UNIT
IC3A
NJM2902V
WXDEC
LPF
IC5E,F IC4 IC3B
BU4584BFV NJM2211M
NJM2902V
DEC1 DSC
BUFF HPF
DECODER
IC2
NJM2125F
SQL SQL
AMP
IC3C,D
IC5A,B IC9
BU4584BFV NJM2211M NJM2902V
DEC2 DSC
BUFF BPF
DECODER
IC15
M62363FP-650C
PCON
D/A
5V
SP
RL2
FTR-F3AA012E
RELAY
MICM
RMUTE
EXPAND
Q7
2SC3326
IC3
LA4425A
AF AF
AMP
MUTE
IC4
BU4066BCF
AFSUB C INCHM
MICM D INCMH
IC6B
M5218AFP
AF UNIT
MIC
AMP
IC6A
M5218AFP
MIC
AMP
Q18
2SK1069
DSC
BUFF
10 - 1
FI3 Q2
ALFYM450F=K 2SC4215
CERAMIC IF
BPF AMP
IC1
TA31136FN
FM 2ND IF 2ND
DET AMP MIX
Q16
2SC4116
NOISE 30.6MHz
NOISE 2ND LO × 2
AMP DET BUFF
FI6 ALFYM450F=K
CERAMIC
Q10
BPF
2SC4215
IC6
TA31136FN IF
AMP
FM
2ND IF 2ND
DET AMP MIX
NOISE NOISE 2ND LO
DET BUFF
AMP
X3
CR-744
(21.25MHz)
X4
CR-664A
(15.3MHz)
IC12
µPD3140GS
Q15
PLL
2SC4215
BUFF
Q18 PMBFJ310
D39, D40 1SV214
Q19
IC11
2SC4215
TC4W53F
TX/ CH70
LOOP
BUFF
RXADJ VCO
FIL
R8
MOD
IC17, IC18
BU4094BCFV
Q13 Q11,12
2SJ144 2SC4116
AF
BPF
MUTE
A
B
OPTION
IC5
BU4066BCF
SCOUT D
HAILIN C
HAILOUT A
FOGC B
For other channels
FI1
Q3, Q4 Q1
L18, L19 617DB-1327=P3
FL-285 PMBFJ310
D11 HSB88WS 3SK294
IF RF
XTAL
BPF
BPF AMP AMP
31.05MHz
Q23
2SC5110
BUFF
Q12 PMBFJ310
D32, D33 HVC358B Q13
2SC4215
LOOP
RX VCO BUFF
FIL
Q14
2SC4215
BUFF
FI4, FI5 Q8, Q9
L48,49
FL-298 PMBFJ310 Q7
617DB-1327=P3
3SK294
D21 HSB88WS
XTAL IF RF
BRF
BPF AMP AMP
For CH70 only
21.7MHz
D42, D43
Q28 Q30
MA77
2SC3775 2SC3775
PRE YGR PWR
TX/RX
DRIVE
AMP AMP
SW
Q29
DTC144EU
TX MUTE
CTRL
Q27
2SC5110
BUFF
T8 T8
CTRL
Q35 2SA1577
Q36 DTC144EU
IC8B IC8A
M5218AFP M5218AFP 8V
IC2
TA78L05F
IDC
LPF
5V +5
REG
Q1 2SB1132
Q2 DTC144EU
R8 R8
CTRL
IC7 BU4066BCF
MIC/DSC A
STRU C
Q22 2SC4081
SCOUT B Q23 DTC144EU
D13 DA204K
NMEA
BUFF
STRU D
IC19
TC7S14FU
GPS
BUFF
IC9B
M5218AFP
MIC
AMP
IC11
M5222FP IC9A
SCRAM M5218AFP
EL
UNIT
BUFF
VOL
IC20
NJM2107F
BUFF
ANT
D3, D4
1SV307
ATT1
ATT
ATT2
D1, D46
XB15A308
ANT
BPF LPF
SW
D47, D48
HSM88ASR
IC13
RA35H1516M
TXDET
RF OUT
DET
VCC
IC14
NJM2107F
T8
APC
CTRL
H/L
PWR
CTRL
Q33 DTC144EU
IC1 D1
TA7808S
DSA3A1
REVERSE
+8 13.8V
PWR
CONNECT
REG CTRL
PROTECT
RL1
FTR-P3CP012W1
VCC
EXT SP
(OPTION)
CONNECT/-A UNIT
NMEA OUT
IC12
PC357N6T
NMEA IN +
PHOTO External GPS
COUPLER NMEA IN -
HLC
HAIL SP
IC10
TA8225L
AF
RELAY
AMP
RL3
FTR-F1
OPTION1
HM-127
BUFF
IC13 BU4584BFV
Q24 2SK1069
Q25 2SC4081
IC16
Q26 2SA1576
BU4066BCF
SPS1 A
MICS1 B
SPS2 D
OPTION2
HM-127
MICS2 C
IC13 BU4584BFV
Q28 2SK1069
Q29 2SC4081
Q30 2SA1576
BUFF