Icom IC-208H Service Manual

SECTION 10 BLOCK DIAGRAM
TX LINE
NOTE:
RX LINE
COMMON LINE
DATA BUS LINE
8V
MICU/D
EXTMIC
PTT
MICE
MIC
GND
MICIN
J502
8V
6
4
2
5
3
1
PTTP
SW
Q507
UNR9113J
DATAIN
J504
DATAOUT
PSQL
SW
Q508
UNR9213J
+
-
SP501
M
+
-
MF1
FAN
FUN
CTRL
CHASSIS UNIT
ANTENNA
J506
AFO
Q15,Q17
2SC4116
MATRIX
MATORIX_IN1-4
OUT1-4
D507-D514, D516-D519
D521,D522 1SS400
D507 [EUR],[TPE],[EXP],[EUR-1]
D508 [TPE],[KOR],[AUS]
D509 [IC-E208]
D510 [ITR],[TPE],[KOR]
D511-514,D516-D519 [TPE],[KOR],[EUR-1]
D521,D522 except [EXP]
CLONE
BUFF
TEMP
SENS
CLOCK
SHIFT
EEPROM
IC501
HN58X24128FPI
CLONE_OUT
CLONE_IN
TEMP
Q510 UNR9210J
D523 MA742
D503
MA2S077
X501
CR-520
SCL
SDA5V
D524
DA221
LIMIT
W501
OPC-465
PROTECT
VCC
REG
D501 RD20E
D502 DSA3A1
Q501
2SB1182
BUFF
Q506 2SC4116
D505 1SS400
PTT
DET
Q505 2SC4116
IC506 TA75S558F
MIC
AMP
MDATA
CONT
IC507 TA75S01F
D506 MA8047
5VS
5V
DATAMOD
DTCS
SELECT
Q1
UNR9213J
5VS
IC509
BU40668CFV
PLL SW
BUFF
Q513 UNR9113J
Q514 UNR9213J
Q24
UNR9114J
Q25
UNR911NJ
Q26
UNR9114J
Q27
UNR9114J
Q28
UNR9114J
Q29
UNR9114J
J503 J3
TXDATA
Q9 2SA1586
Q10 2SC4116
D4 DA221
IC6 TC4S66F
PLL
IC
LOOP
FIL
IC1 MB15A02PFV-1
D2 1SS400
D525 1SS400
5VS 8V
BUFFBUFF
REF
CONTROL
PLL
IC
Q11 2SA1586
Q12 2SC4116
D5 DA221
IC7 TC4S66F
IC2
MB15A02PFV-1
D3 1SS400
D527 1SS400
LOOP
FIL
5VS 8V
BUFFBUFF
BUFFBUFF BUFFBUFF
Q3 2SC5231
D2,D3 MA2S304
D1 1SV286
BUFF
BUFFBUFF BUFFBUFF
IF
AMP
+5
REG
POWER
SW
CONTROL
+8
REG
+5
REG
RESET
VT8
REG
UT8
REG
IDC LPF
+8
REG
SEL_SW
D/A
8V
5VS
VT8 UT8
8V
8V
5VS
8V
VCC
HV
5V
IC503
TA7805F
Q503
2SA1588
D504
1SS400
IC502
S-80945CLMC-G7F
Q4
2SC4116
Q6 UMG9N
Q8 XP1115
U_VCO8V_VCO8
Q502
UNR9213J
IC504
TA7808F
8V
Q23
2SA1362
Q20
UNR9213J
Q22
2SA1362
Q19
UNR9213J
IC3a
NJM12902V
IC3d
NJM12902V
IC3c
NJM12902V
MUTE SHIFT
VCO
SW
VCO
SW
LPF
LPFATT
U_VCO8
MUTE
VCO
SW
LPF
ATT LPF
VCO
SW
DOUBLER BPF ATT
V VCO8
IC4
M62363FP-650C
FAN_CTRL
RXDATA
TXDATA
RX800 RX400
RXUHF
RXVHF
AM
R5CTBL
P_PTT P_SQL EXTMIC MICU/D 98_DATA MIC_PTT DTMF DTCS_SEL DTCS MICSENS
AF
AMP
AF
MUTE
VOLUME
VCC 5VS
IC510
LA4425A
Q512
2SC4213
IC508
M62429FP
V_VCO
U_VCO
AF_MUTE
AF_VOL_DATA
AF_VOL_CK
DTCS_IN
WXALT
DET_MUTE
WN_SEL
SQL
RSSI
DA_STB,DA_CK,DA_DATA
TX_MUTE
R5
REG
AM5
REG
VHF_R5
REG
UHF_R5
REG
400_R5
REG
800_R5
REG
5VS
R5 AM5 VHF_R5 UHF_R5 400_R5 800_R5
IC505
HD6432143SA70FA [USA]
HD6432143SA69FA except [USA]
CPU
TXDATA
RXDATA
Q504
XP4601
RDATA
GND
CTHV
HV
TDATA
RDATA
GND
Q2
XP4601
HV
BUFF
MIC
SENS
CTRL
Q509
UNR9213J
Q511
UNR9213J
ANALOG
SW
1200
9600
SEL
MODIN
PLLCK,PLLDATA,PLLSTB1
PLLSTB2,UNLK
MMUTE
VCO_SHIFT
D1
HVC376B
X1
CR-719
15.2MHz
Q2
2SC4116
Q7
2SC4215
Q1
UNR9213J
Q100
UNR9213J
Q102
2SC5231
Q103
2SC5231
Q101 2SC5231
D101,D102 HVC375B
D100 1SV286
Q104
2SC5231
Q105
UNR9213J
D106 1SV308
D107 MA2S077
D103 1SV308
D104 MA2S077
D105 MA2S077
D50 MA2S077
D51 MA2S077
Q50
2SC4403
Q5
2SC5231
D5 1SV308
D6 MA2S077
8V
LPF
AF
MUTE
LPF
LPF
AGC
AM
DET
AM5
AM/FM
SEL
CERAMIC
BPF
CERAMIC
BPF
WIDE/NARROW
SELECTOR
X2
CDB450C24
FI2
CFWM450E
FI1
CFWS450HT
IC9, IC10 TC4W53FU
Q21 UNR9213J
FM IF IC
IC8
TA31136FN
SQL
RSSI
Q13 XP6501
Q16 XP6501
D19,D20,D21
MA2S728
D525 1SS400
IC5
TC4W53FU
Q14
2SJ144
Q3
XP4601
Q5
XP6501
R5
LIMIT
XTAL
BPF
D6
DA221
FI3 FL-344
46.05MHz
Q18
2SC4226
I_DET
HV
IC511
NJM3404AV
IC11
M62352GP
REF_V
ATT
REF_CON
PCON_V
PCON_U
PL_U
BSHIFT
TUNE_8
TUNE_U
TUNE_V3
TUNE_V2
TUNE_V1
Q44
2SC4081
ATT
CTRL
D/A
PRE
DRIVE
DRIVE
AMP
V_T8
PWR
AMP
LPF
SWR
DET
TX/RX
SW
ATT
HV
Q30
2SC3357
Q33 2SC2954
Q13 XP6501
IC13
S-AV32
T_UHF
(430-450MHz)
D27 MA742
D33 MA742
D45 UM9401F
D49 HVU131TRF
D50 UM9401F
D47 1SS400
LPF
PRE
DRIVE
DRIVE
AMP
U_T8
PWR
AMP
LPF
SWR
DET
TX/RX
SW
Q31
2SC5085
ATT
HV
Q34 2SC3357
D14 1SS355
IC14
S-AU82L
T_VHF
(144-148MHz)
D28 MA742
D34 MA742
HPF
D40 UM9401F
D48 HVU131TRF
D51 UM9401F
D46 1SS400
LPF
HPF
APC
CTRL
X
RF
AMP
Q36
2SC5006
RF
AMP
Q40
2SC5008
RF
AMP
Q37
2SC5008
RF
AMP
Q41
2SC5624
RF
AMP
Q38
3SK299
X
X
RF
AMP
Q39
3SK299
IC15 NJM3404AV
D531 DAN222
Q42 UNR9113J
Q45 UNR9113J
TX_
MUTE
D22 HVC350B
D23 HVC350B
D29 HVC350B
D41
HVC375B
VHF
(118-174MHz)
BPF
VHF_R5
BPF ATTLO_SW LO_SW
RX
SW
RX
SW
RX
SW
D528
HVC136
Q515 UNR9114J
Q516 UNR9213J
D529 HVC136
D530 HVC136
D15 HVC136
D16 HVC136
D7 DAN222
D8
HVC136
D9
HVC136
D10
HVC136
Q32
3SK299
Q35
3SK299
IC12
µPC2757TB
D17
HVC136
FI4
EFCH445MWNP1 [USA]
EFCH435MWNP1 except [USA]
D42
1SV308
UHF
(430-440MHz)
BPF
RX
SW
ATT
RX
SW
RX
SW
BPF
SHIFT SHIFT
BPF
D25 MA2SV05
D30 MA2SV05
400_R5 400_R5
D36
MA2SV05
D43
1SV308
400M
(230-550MHz)
D24,D32
MA2S077
D38
MA2S077
Q43
UNR9115J
SHIFT
CTRL
RX
SW
BPF BPF ATT
RX
SW
HPF
D18
HVC136
800_R5
D26,D31
1SV305
800_R5
D37
1SV305
D39
1SS362
D44
1SV308
800M
(810-1000MHz)
UHF_R5
BUFF
HV
+5
REG
RESET
IC5 TA78L05F
D4 MA8062
CPU5V
IC2
S-80945CLMC-G7F
DS1
L2-0736TAY
LCD
Q6,Q7
2SC4116
COLOR
LCD
BACK
LIGHT
KEY
BACK
LIGHT
DS22
CV1074
DS13,DS14,DS15
DS16,DS17,DS18
DS20,DS23 SML512MW
DS21 SML-020MYT
X1 EF0S4914E3
S1
A
B
COM
2
3
1
DIAL-A
DIAL-B
VOL
EVU-F2AF20B55
SQL
EVU-F2AF20B55
R1
R5
+8
REG
HV
8V
Q1 2SC4116
Q3 2SA1734
D5 MA8068
CPU
S3
S5
S7
S9
S11
S4
S6
S8
S10
POWER
VMHZ
TONE
MONI
SMW
BAND
M/CALL
LOW
SET
CPU5V
CONTROL UNIT
IC6
HD6433842RB36H
VCO BOARDMAIN UNIT
VCO8
2nd LO 45.6MHz
VTXC UTXC PLLSW MICMUTE P_MOD_MUTE
1200_9600SEL
HV
PWR
BAND
VMHZ
M/CALL
TONE
LOW
MONI
SET
SMW
PLLCK,PLLDATA, VRSTB
Q4
2SC5231
10 - 1

Icom IC-208H Specifications

General

Brand	Icom
Model	IC-208H
Category	Transceiver
Language	English