Icom IC-A22 Service Manual

SECTION 7 BLOCK DIAGRAM
7 - 1
118.00 - 136.975 MHz
TX Frequency
108.00 - 136.975 MHz
161.65
- 163.275 MHz
RX Frequency
Others
#01, #07
Version
R5098
R5087
R5082
INT MIC
LOW BATT
XP4315
Q6108
NJM2904V
IC6107
D6116: MA111
Q6109: 2SC4211
UN9213(A3/E)
UNR9213J(A22/E)
Q6110
NJM2903V
IC6108
2SC4403
Q4015
CR-456
X4001
2SD1819
Q5031
2SD1819
Q5010
TA7368P
IC5003
TA75S393F
IC5007
SOUT
AF(FM) OUT
IF IN
IF
CFWS455D
FI5001
2SC4215
Q5002
2SC4215
Q5003
2SC4215
Q5030
2SC4211
Q5004
MA111
D5003
UN9210(A3/E)
UNR9210J(A22/E)
Q5009
UN9210(A3/E)
UNR9210J(A22/E)
Q5008
TC4W53F
IC5002
2SC4211(X2)
Q5026,Q5005
2SC4215
Q4003
or FL-203
FL-221
FI14001
3SK151
Q4002
D4009: MA304
D4008: MA304
3SK230
Q4001
D4007: MA304
D4006: MA304
D4003: MA77
D4002: MA77
D4001: MA77
SC-1303
IC4002
Q4014: 2SC4211
Q4010: XP1401
D4005: MA728
D4004: MA728
2SC4403
Q4004
2SC4403
Q4005
2SC3357
Q4007
1SV246
D4013
2SC4403
Q4005
1SC246
D4012
TXLO
RXLO
TUNE
MOD
RF-AGC
AGC
FIL
LOOP
BUFF
TUNE
BUFF
WX
D4016: MA111
Q4013: 2SB1132
Q4012: 2SC4211
XP4601
Q4020
SIDET
TRC
TC75W51FU
IC5005a
TC75W51FU
IC5005b
BA330BF
IC5004
VOL
SQL
TC4S66F
IC5008
MA111
D5013:
MA111
D5010:
2SC4211
Q5007:
2SB1201
Q5006:
REG
AF
VOL
AF
SQL
ANL
SW
TX/RX
ATT
MOD
ATT
APC
DET
PWR
LPF
SW
ANT
D4021: MA77
D4010: MA77
UN9210(A3/E)
Q4019: UNR9210J(A22/E)
UN9110(A3/E)
Q4017: UNR9110J(A22/E)
XP4601
Q4018
LV
2SC4403
Q7003
VCO BOARD
2SC4116
Q4021
UN9210(A3/E)
UNR9210J(A22/E)
Q4016
5V 5V
FIL
RIPPLE
CTRL
SHIFT
SHIFT
DATA
PLL
µPD3140GS
IC4001
VCO
IC
PIL
(IC-A22/E only)
VOR circuit
DETO
NJM2902V
IC6105
NJM2903V
IC6106
BPF
BIAS
BPF
FM DET
SHIFT
PHASE
DET
LEVEL
LPF
CTRL
NAV +5V
HD4074829TF [IC-A3] only
HD404829B96TF except [IC-A3]
IC6001
CPU
MIC
SML-110MT
D6006,6007:
LN1371G
D6002-6005:
Q6004: 2SB1132
Q6003: 2SC4211
24LCO8BTI/SN
IC6002
MATRIX
INITIAL
MATRIX
KEY
LCD
EEPROM
LIGHT
BACK
MA111
D6001:
XN4601
Q6001:
D6002: MA111
Q6002: 2SC4211
S-80845CLMC-B66-T2
IC6003:
BUFF
DET
RESET
D6003: MA111
Q6007: 2SA1622
Q6005: UN9211
Q6005: 2SC4211
IC6004: TC4S69F
CTRL
CLONE
SQL PTT UP DOWN
ANL
BEEP
SQL
AF ON
PTT
LOGIC UNIT
CHASSIS
DATA BUS
COMMON
TX
RX
BUFF
AMP
LIMIT
INV
CMP
CMP
VORO
VORS
VORC
NAV
INT MIC
PTT UNIT
(ANL)
(LIGHT)
(PTT)
VCC
+5
Q5015: 2SC4211
Q5014: 2SB1132
Q5017: 2SC4211
Q5016: 2SB1132
Q5020: 2SC4211
Q5019: 2SB1132
UN9110(A3/E)
Q5018: UNR9110J(A22/E)
RF UNIT MAIN UNIT
(ANT)
AMP
APC
AMP
PWR
DRIVE
PRE
AMP
D7002: MA77
D7001: MA304
Q7002: 2SC4226
Q7001: 2SC4226
SHIFT
BUFFBUFF
BUFFBUFF
BPFBPF
AMP
RF
BPF
XTAL
AMP
IF
CLONE
(DIAL)
UP
DOWN
SP
CDBM455024
X5002
CR-458
X5001
WX
TMUT
REG
T5
CTRL
SIDET
T+5
CLONE
JACK
SP
EXT
JACK
MIC
EXT
DETO NAV
S-812C50AMC-C3E
IC5006
VCC
REG
+5
5V
REG
5V
+5
REG
+5
R5
XP4315
Q5013
REG
R5
MUTE
MIC
LPFAMP
AMP
ALC
MA111
D5008:
2SA1622
Q5027:
D5014: MA111
D5009: MA133
Q5029: UN9211
Q5028: 2SB1132
CTRL
PTT
POWER CTRL
EXTMIC
VCC
MUTE
SIDET
AMP
AF
CMP
TA31136FN
IC5001
SW
NAV
AMP
AGC
AMP
AGC
BPF
CERAMIC
AMP
IF
AMP
IF
AMP
IF
DET
AM
SW
ANL
ANL
SELECT
AF
FIL
AF

Icom IC-A22 Specifications

General

Brand	Icom
Model	IC-A22
Category	Transceiver
Language	English