Icom IC-2200H Service Manual page 42

SECTION 10 BLOCK DIAGRAMS
10-1 IC-2200H
REF
OSC
Q4 2SC4116
D3 HVC376B
X1 CR-779
(21.25MHz)
Q36 DTA113ZU
AM MODE
REG
BSHIFT
MAIN
LOGIC
THROUGH
IC3A
EXT MIC
NJM12902V
MIC MIC MIC
THROUGH
JACK SW AMP
SW IC520
CD4066BPWR
IC2
TC4S66F
Q528 DTA144EE
D4
IC520 IC520
DAN222
CD4066BPWR CD4066BPWR
ALC ALC ALC
AMP
SW SW
IC24 TA75S393F
IC514
D1 MA8091
AN6123MS
ALC
Q524
ALC
2SA1576
MICDATA PS
BUFF
Q1 2SC4116
THROUGH
D2 MA2S111
PTT SW
+8V
Q1 2SC4116
SHIFT
VCO Q3 2SC4116
REG Q5 2SC4116
Q8 DTA113ZU
D1 MA2S111
Q6 2SC4226
IC1 LV2105V
Q2 XP4601 D2 HVC375B
CP
D4 MA2S304
PLL LOOP LO
AMP
IC OUT FIL
(LOOP-SW)
Q9 2SC4226
MOD
Q10 2SK1069
Q7 2SC4226
D5,D38 MA2S304
BUFF
DC AMP
Q12 2SC4226
R5V
IC4 TA31136FN
LPF
IF DET-IC
(2nd-MIX,IF-AMP,
NOISE-AMP,FMDET,
RSSI,SQLSW)
IC12 SN74AHC2G53HDCT
X2 CDB450C24
AM/FM Q13 DTA144EU
AM DET
SELECT Q34 2SC4116
W/N SW
D23-D26 MA2S111
*ONLY W/N Ver.
Q37,Q38
XP6501
AGC
CERAMIC CERAMIC
BPF BPF
AGC FI1 FI2
CFWS450F CFWS450HT
DETOUT(DIGI_AFI)
IC525 CD4066BPER IC3c NJM12902V
ANALOG
HPF
SEL
IC522 CD4066BPWR
AN MOD_I
DI_SEC
DIGI,AN
VOLIN
IC3d NJM12902V
ANALOG SW
HPF
IC6 CD4066BPWR
IC525
CD4066BPWR TXAF
SECRET
SW SECRET CUTOFF
DS1
SW SHIFT
IS08264E
Q527
UMG2N
LCD
SECRET
SECRET DIGI,AN
IC525
CD4066BPWR
Q3 XP4601
CTCIN
LPF
CPU
DETO
X1
IC1 M30220
CR-739
D25 MA2S077
CLOCK
SHIFT
SD/NOIS
RESET
LVIN IC4 BD5242FVE
Rx 96.300-152.300MHz
Tx 136.000-174.000MHz
T8
D6 MA77
D7 MA77
TX/RX PRE
BUFF
DRIVE
SW
Q11 2SC4226 Q17 2SC3356
LPF
R5V
D9 HVC350B
Q16 FI3 FL-363 D10 HVC350B
2SC4406 D29 DA221 FI4 FL-363 D11 HVC350B
IF
XTAL
LIMIT BPF
AMP
BPF
Q19
21.7MHz 3SK299
T1
T2
AGC T3
SQLIN
DETO
DTC/FC
IC5
D/A
M62363FP
IC522 CD4066BPWR
DI/AN DI/AN
SW SW
MIC_OUT
DIGITAL MOD OUT
ANALOGUE MOD IN/MIC_IN
AFOUT(DIGI_AFOUT)
IC3b NJM12902V Q525 DTC144EU
T/R
AFOUT CUTOFF TX_DIGI
LPF
CTCSS/
SHIFT
IC524
TONE
SN74AHC2G53HDCT
Q2
SIG_OUT
DTC144EU
CTCSS
LPF
SW
Q6 2SA1576
Q7,Q8,Q12 2SC4116
DIMMER
DS2-DS13 SEC2422C
D7-D9,D21 DAN222
INT/KEY D11 1SS133
D12-D17,D22,D23,
MATRIX
D27,28 1SS400
CLONE
BUFF Q5 DTC144TU
D6 DA221
Q515 2SA1576
REFMOD
AN
AMP
D526 MA2S111 REG
C5V
Q514 2SC4116
Q513 2SB798
EEPROM
OPTION OPTION
AMP
REG CONNECT
IC5 HN58X2464TI IC521 TC75S51F
OP_PS
IC11 NJM3404V
HV
CURRENT
DET
T8
for CPU
IC10
S-AV36
50-100mW
DRIVE PWR
AMP AMP
Q35 2SC2954
D30 1SS355
APC
CTRL
IC6a NJM3404AV
Q26 DTA144EU
IC11 NJM3404V
Q39,Q40 DTC144EU
R5V
D31 MA2S111
IC6a NJM3404AV
Q27 3SK299
D13 HVC350B D18 MA2S111 D15 1SS355
RF
BPF ATT LIMIT
AMP
AGC T3 SQLATT
R5V T8 +5V +8V SWHV
R5 T8 +5 +8
REG REG REG REG
Q25 Q14 2SA1362 Q21 IC7
DTB113ZK Q15 2SC4116 DTB113ZK TA7808F
Q22
DTC144EU
TXC
PWRON
HVSW
EXP
PORT
Q28 2SC4684
IC2 CD4094BPWR
Q30 DTA143TUA
Q31 DTC143ZU
SWHV
Q29 Q41
2SC4213 2SC4617
VOLOUT AF EMPHASIS AF
AMP
MUTE SW
DIGI
DIAL
VOL SQL
Explanatory notes
VOLTAGE LINE
TX
RX
COMMON
DATA/CONTROL/BUS,ets
10 - 1
ANTENNA
D12 XB15A407
D19 XB15A308
D16 HVU131TRF
ANT
LPF
SW
Tx* 136.000-174.000MHz
Rx* 118.000-174.000MHz
*Depended on versions
PWR
DET
D14 MA742
D17 MA742
C5V HV
C5V
REG
IC8
TA78L05F
W6
REVERSE
& OVER
VOLTAGE
PROTECT
D20 RD20E
D21 DSA3A1
IC9
TA7252AP
AF OUT
SP
J4
CLONE EXT SP-JACK
J7
RS-232C TX/RX/GND
SP1