Icom IC-M34

10 - 1
SECTION 10 BLOCK DIAGRAM
LPF
ANT
SW
ANTENNA
J1
PWR
AMP
DRIVE
PRE
BPF
RF
AMP
BP F
TX/RX
SW
BUFF
BPF
APC
CTRL
BUFFBUFF
BUFF
BPF
IF
AMP
FIL
LOOP
7.9872MHz
VCC
VCC
LPF
X170
450KHz
BPF
LIMI T
AM P
LPF
AF
MUTE
AF
AMP
X1
21.25MHz
AMP
VCC
HV
BPFBPF
POWER SW
AF
MUTE
AF
MUTE
AF
MUTE
S5V
HV VCC
5VS
R5VS
V5VS
T5VS
S5VS
WDEC V
RSSI V
LOIN V
NOISV
WET
TEMPV
BATTV
BEEP
AFVS
AFMS
MICMS
DETMS
ETXDO
TXM S
TDETV
ERXDI PTTIN
EXTPTT
BTYPE
PTTM
ATTS
LOW
PWSW
PON
21.7MHz
FI150:FL-412Q151: D131:
D92:
PWR
DET
T5V
D80:
D 52,D90:
Q90:
Q53: Q54:D 50,D51: Q50:Q24:Q23:
Q25:
Q 21,Q22:KTC3770UIC1:MB15E03SLPFV1
PLL IC
PWR
DET
TX
MUTE SW
T5V
MOD
MUTE
R5V
DE -
ENPHA
AF
REG
PRE
ENPHA
IF DET IC
D/ A IC
SPO
AF OUT
CLONE
MIC
GND
BUFF
PTT
CONT
REG
5V
REG
R5
REG
V5
REG
T5
CPU
5V
RESET
CPU5V
RESET
EEPROM
LCD
KEY
LED
SW
LED
BTYPE
HV
GND
EXT JACK
J250
VCO
Q150:
D91:
MAIN UNIT
CHASSIS
REF
Q20:KRC404E
IC50: Q351:
IC170:
FI170:
450KH z
IC190:
DS246:
Q240:
IC340:
IC360:
CPU
IC 2 2 0 :
IC341:
Q223:KRC404E
Q221:
Q220:
Q222:
5V
R5V
V5V
T5V
Q280:
IC280:
Q230:KTA1664
IC-200A:IC200D:
IC200B:
IC200C:
Q350:KRC414E
Q250:
W XDECV
VOLIN
VOLO
BEEPO
SQLO SQLI
FCON
MODC
PTT
CLOUT
TXMS
RSSI V
NOISV
PCON
MODC
PLLO
2ND LO
DET
FCON
S-24CS64A0I-T8T1-G
KRC404E
DS240,DS241:
RY-SP110UTY24
DS242,DS243,DS244,DS245:
SML-311Y T
S11000
X360
CR-834
UPD780338GC
SP
KTA2015
KTA2015
KTA2015
Q224:KTC811U
Q225:KTA1664
S-80942CNMC
NJM2870
LM2902PWR
KRA302E
[PTT]
MICROPHONE
KTC2875
TA7368F
Q231:XP6501
BTYPE
D350:KDS122
JTBM450CX24
JTM450FW
TA31136FN
M62364FP
KTC3880S FI151:FL-412
3SK293
3SK294
D93:
NJM2125F
RB706F
KRA304E
RB706F
1SV307RD07MVS1RD01MUS1KTC3770U
MA77
2SC42152SC4215
2SC4215
D 20:MA2S077
D 21:MA2S077
D22,D23:HVC350B
CR-766
COMMON LINE
RX LINE
TX LINE
D130:
KDV214E
T1CON
REG
S5
Q226:
KTA2015
S5V
LM2902PWR LM2902PWR
LM2902PWR
IN M I C
EXTMI C
Q251:
CONT
KRA302E
PTT EXTPTT
CONTROL LIN E
T1CON
PCON
TDETV
D/A contorl BUS
PLL DATA BUS
CLIN
AFVS
AFMS
CD4066PW R
IC260D:
DETM
MOD
CD4066PW R
IC260A:
PTTM MICM
CD4066PW R
IC260C:
ATIS
BEEPO
3V
REG
IC2:
S-812C36AMC
KDV214E KDV214E
KDV214E
LEDS
PWR
ATTS
CTRL
PWR
CTRL
PWSW
PON
RSQ035P03TR
Q353:
Q355:KRC404E
Q356:KRA304E
Q354:KRC404E
M34A3.indd14-15 12/27/20067:08:43PM