Icom IC-F33GT

SECTION 10 BLOCK DIAGRAM
10 - 1
NOTES :
Contorol line
Common line
TX line
RX line
DATA lime
Voltage line
BPF
272.0-440.7 MHz
D
MUTE
Q502:
2SK3019
Pre
EMPHA
IC25:
TC7S66FU
SW
LPF
LPF
IC6:
NJM12902
LPF
IC19:
NJM12904S
LPF
IC6:
NJM12902V
LPF
IC6:
NJM12902V
DET
PWR
D701: 1SV307
D703: RB706F
MUTE
SW
Q501:
UNR9213J
EEPROM
IC10:
24LC64T
RESET
IC8:
S-80942CNMC-G9C
SHIFT
SW
D6:
MA2S077
ANT
SW
D701:
1SV307
PWR
AMP
Q701:
RD07MVS1
TX/RX
SW
D16, D17:
MA2S077
Q17:
2SC5006
D9, D500
HVC376B
Q16: 2SC5006
D10, D501:
HVC376B
FIL
RIPPLE
Q20: 2SC4116
VCO
SW
Q18: XP1214
Q19: UNR9213J
LOOP
FIL
PLL
IC
IC21:
LMX2352TM
X3
Q22:
2SC4116
X1
CDBC450CX24
X6
CR-774
12.288 MHz
AMP
IC23:
NJM12904
FM
MOD
D12:
1SV239
Q6:
3SK299
BPF
D14:
HVC350B
BPF
D15:
HVC350B
BPF
D19:
HVC375B
BPF
D24:
HVC375B
BPF
RF
AMP
Q5:
3SK293
APC
AMP
IC2:
TA75S01F
BPF
XTAL
FI1:
FL-335
IF
AMP
Q7:
2SC4215
CERAMIC
BPF
FI2
CFWM450F
CFWM450F
450 kHz
+5
REG
IC17:
NJM2870
AF
AMP
IC15:
TA7368F
SP
Q29:
2SC5006
BUFF BUFF
Q15:
2SC5006
Q14:
2SC5006
BUFF
Q21:
2SK880
FIL
SW
Q40:
UNR9213J
DRIVE
AMP
Q702:
RD01MUS1
AT T
GATE
CTRL
Q4:
2SK1829
AMP
IC19:
NJM12904V
AXN330C038
MC1
PTT
R315
PTT
DET
Q43:
UN9112J
AF VOL
LPF
IC23:
NJM12904
X2
CR-781
15.3 MHz
TCXO
T5
REG
Q24:
2SA1577
REG
R5
Q25:
2SA1577
S5
REG
Q26: 2SB1132
Q27: XP6501
Q28: UNR9113J
F1
12
BATTERY_1
BT1
PWR
CTRL
Q42: 2SB1132
Q41: XP6501
LCD
DS3:
FX–2721
PRE
DRIVE
Q704:
2SC5006
LV
ADJ
D13:
HVC376B
LV
ADJ
D11:
HVC376B
D8: MA2S111
AMP
AMP
HPF
LPF
LIMIT
AMP
LPF
SCRM
BLER
BPF
MSK
DE-Modulator
MSK
Modulator
EXPANDER
AMP
COMPRESSOR
X5
CR-765
3.6864 MHz
BUFF
IC24:
TA75S01F
LPF
IC6:
NJM12902V
MSK
FM/PM
IC13:
TC4W53FU
DS1:
LNJ310M6URA
DS2:
LNJ310M6URA
LCD
DRIVER
IC20:
LC75834W
Rotary Selector
SDEC
CDEC
RES
CENC0-2
SENC0-3
CLI CLO
D/A
IF IC
LVI N
S5V
R5V
RX VCO
TX VCO
RSSI
TONE
TONC
DUSE
T2
T1
T2
TMUT
NOIS
CPU
IC9:TA31136FN
IC12:
M62364FP
IC22: HD64F2238BTF13
136-174 MHz
REF
BAL
45.9 MHz
DET
SQIN
46.35 MHz
182.35 MHz-220.35 MHz
TONE
CTCSS/DTCS DEC
CSFT
MIXER
RSSI
MOD
BEEP
DET
CPU5
VCC
+5V S5V
R5V T5V
S5C
R5C
T5C
DET
CTCSS/DTCS
MOD
LV
TLVA
LVA,T1,T2
VCC
IC14:
AK2346
TEMPS VIN
KEY MATRIX
+5V
OPTIONAL BOARD
F
C
EXT SPEAKER
EXT MIC
J5
ANT UNIT
PA UNIT
FUSE UNIT
G
X2
RLVA
SEC10SEC11.indd1 10/27/200411:38:35AM