Icom IC-A210 Service Manual page 44

SECTION 8 BLOCK DIAGRAM
RF
AGC IC81
NJM2902V
IC81
NJM2902V
IF
AGC 3
IC81
NJM2902V
IF IF
AM P AMP
IF
Q25
Q24
AGC 2
2SC4215 2SC4215
Q21
2SC4211
AM
DET
D29 IC32 IC38
MA2S728 TC4W53FU TA75S01F
AM/FM
ANL LPF
SW
IC70
TC4S66F
ANL
AM/FM
SW
IC2 IC13
M61545AFP BA3308F
MC 1
ALC
E VOL
AM P
MC 2
IC3
VOX NJN2904V
AMP DET
IC
Head Phone
D18 1SS193
Q9 2SD2351
RL1 AHY107
SP
SP OUT
CTRL
IC15 NJU6060V IC11 IC12
IC17 Q4 Q5 TC7S08FU
TC7S08FU DTA113ZU IC8 TC7S04FU
D S1 10
SML 512DW
LED DATA
LED
DRIVE CLK
DRIVER
CTRL CTRL
IC9 TA75S01F
D3
D2 BCS2015G1
1SV271
LIGHT BEEP
SENSOR LEVEL
AD J
S2
RCL
S3
MEM
S4
DUAL
S5
EC
IC10
ADM202EARUZ
S6
SWAP RS232
DRIVER
S1
2SENSOR 1SW
Q1
2 2SC421 5 X1
A
3
9 8304MHZ
B
1
COM CLK
SHIFT
5
A
6
B
4
COM
78
R1
2
1
3
4
5
6
7
VOLUME UNIT
TP76N00NA
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2ndIF=450 kHz
IC45 FI5 IC43 IC39
TC4W53FU CFWKA450KEFA TC4W53FU TA31136F
CERAMI C
IF RF RF 2ndI F
AM P SW BPF SW
IC
Q26
2SC4215
FI6
CFWKA450KHFA
CERAMI C
BPF
IC9
LTC6904IMS8
IC22 IC8 IC8 IC14
TA75S01F NJM2902V NJM2902V
IC26 M61545AFP
AF MOD/AF
LPF HPF BUFF E VOL
AM P SW
TC4W53FU IC7
D16 D17
LTC1069
DAN217
T4 IC4
ST 82 TDA7233D
IM P
HP
CONV AMP
Q58
2SC4116 IC6
BA08FP
+8
Q59 Q60
SW
REG
RSR025N03
IC48 IC78
BU2099FV M62364FP
MM
Seri /
Para
DRIVER
SP CTRL
ANL
A
DATA CL K
B
C
FRONT UNIT
REG C2
BPOUT
IC6 IC7
C TC74LVX4245FS
IC8 TC7S04FU
B
LEVEL
A
CPU CONV
UL
IC3
BD52452G
IC4
RESET
HD64F38347W
IC5 R29
24LC64T NTCG16
TEMP
EEPROPM
SENSOR
8 - 1
1st MIX
1stIF=38.85 MHz
Q20 D27 FI3 D19
3SK195 HVU131 FL 306 HVU131 IC68
JSM 1
IF RF XTAL RF
AMP SW BPF SW
D28 FI4 D20
Q45
HVU131 FL 307 HVU131
2SC3357
RF XTAL RF
SW BPF SW
BUFF
AM/FM
AM MOD
D36
DAN235E
TX/RX
SW
IC76
TA75S01F
AUX
BUFF
IC49
TC4028BF
BCD/Deci
D/A
CONV DECODER
IC48
BU2099FV
Q1
GATE
Q2
CTRL Q3
MAIN UNIT
EL
5V
+16
8V
IC16
TA78L05F
+3 +5
REG REG
IC2
NJM23070U1
D13 D14 IC69 D10 D11
1SV242 ERA 50SM 1SV242
RF
BPF BPF ATT
AM P
D1 D2 D3
IC52 1SV271
NJM2902V
BUFF
AM/FM
SW
Q41 Q500 Q501 Q504 D500 D501
2SK3074 2SK3075 MRF137
2SC4226 R7806FX 2
PRE PRE PRE PWR PWR
DRIVE DRIVE
AM P AMP DET
IC501
IC500 IC500
TA75S01F
NJM2904V NJM2904V
SEND
SW APC APC
AM P CTRL
R535
NTCG16
Q502/Q503 DTC144EU
Q33 Q5 2SK508 Q2
Q35
2SC4226 D21 KV1770S 2SC4215
2SC4215
VCO
BUFF BUFF TX VCO
SW
IC47 Q3
ADF4110BRUZ 2SC4215
PLL LOOP VCO
RX VCO
IC FIL SW
Q6 2SK508
Q53
DTC144EU D22 KV1770S
X2 Q38
CR 860
2SC4215
SW
TCXO BUFF
IC25 NJM2137M
IC71 TC4S66 F IC17
IC80 TC4S66 F H IP4081AIBZ
PWM
MOD
Q29 Q30 Q32
2SB1302S DTB113ZK DTB113ZK
R8 T8
SW
IC16
SW SW IC75
NJM2137M
BD9001F
TRIANGLE
+16
WAVE
REG
OS C
IC44
TA78N05F
16V
+5
REG
IC42 Q11
BA08FP
2SJ402
+8
REG
IC31
BD9781HFP
LINE
10V
FILTER REG
IC5
LM2587
TX&RX=118.0-136.975 MHz
D502 D503 D504 ANT
MA4PH224 x3
ANT
LP F
SW
TUNE1
AM/FM
PA UNIT
PCON
PROTEC T
Q42
2SD2351
RIPPLE
FIL
8V
Q15 Q16
2SK2414
FE T AF LIN E
DRIVER POWER
FILTER
AM P
+B
1
2
REVERSE
POWER
CONNEC T
SW
PROTECT
D12
DAAM1MA33
REG
RX LINE
TX LIN E
COMMON LINE