Pa Unit; Main Unit; Block Diagrams - Icom IC-910H Service Manual

SECTION 10

BLOCK DIAGRAMS

10-1 MAIN UNIT

Q1855
DTC144EU
COVER UNIT
D1851
1SS355
SP1
C065K12I0810
DRIVER 14V
PHCO
IC1852
IC1806B
LA4445
IC1806C
BU4053BCFV
BU4053BCFV
SUB EXT SP
AF
AMP
MUTS
IC1806A
BU4053BCFV
MAIN EXT SP
AF
AMP
RL1851
MUTM
ATX209
PCON
ATT
IC1801C
BU4053BCFV
KEY
REMOTE
IC1804D
NJM2058M
METER
SMLM
AMP
A SEND
B
C
to AGC
AGCM
FRONT CTRL
UNIT
Q302 XP4312
D Q303 XP4312
Q304 XP4312
E
F
IC452B, IC452C
BU4053BCFV
AF
SELECT
Q405
XP401
CTCM LPF
IC451C
NJM2058M
CENM AMP
OUTM
NSQM
IC1803-6
M62363FP
IC1701
PC5023-077
AMP BUFF
LIMIT
AMP
AMP
AMP
IC1531A IC1531B
BU4053BCFV BU4053BCFV
MOD
MAIN UNIT
DIN
DCON
IC1803-3
M62363FP
IC1807A BEEP
NJM2058M
5V
AF
IC1803-2
AMP
OPTION
M62363FP
IC1809
M5282FP
UT-102
VCA
IC1803-1
MSC
M62363FP
IC1802C
BU4053BCFV
IC1807B
NJM2058M OPTION
IC1803-4
M62363FP AF
IC1802B UT-106
AMP
VCA
BU4053BCFV
IC1801B
BU4053BCFV
IC1808
M5282FP
DSSW
IC1807C
NJM2058M IC1802A OPTION
BU4053BCFV
AF
UT-106
AMP
IC1801A
BU4053BCFV
IC1652B
IC1653C
NJM2058M
BU4053BCFV IC1653B
BU4053BCFV
LPF
1750
CWVR
Q301 2SC4116
D302 MA728
RF
GAIN RFGM
CTRL
Q305 D303
2SC4116 1SS375
RX TOTAL GAIN
AGC
AGC
AMP DET
Q352 R360
3SK131 RV-110
IC351
TA4101F
IF
AMP
IC451D Q402
NJM2058M XP4312
HPF DRIVER WNCM AGCM
CERAMIC
BPF
FI311
IC401
CFWS455HT
TA31136FN (D)
AF1M
AF2M
CERAMIC
BPF
FI312
Q406 CFWS455E
2SK1829
FM
AF
DE- DET
LEVEL
EMPHA
SW Q404
2SK1829
DET
BFOM
CTRL
X401
CDBM455C24
IC1804C
NJM2058M
METER
AMP
IC1652D
NJM2058M
BUFF
AF
AFRP
AMP
IC1803-5
Q1651
M62363FP IC1652C
2SC4116
NJM2058M
BUFF
VCA
IC1653A
BU4053BCFV
MICV 1750
PIF
COMS
VOXL
AVXL
IC1531C
BU4053BCFV
GAIN
EXTG
CTRL
IC1654B
AMP AMP AMP
NJM4565M
AMP
IC1522D IC1522B IC1522C
NJM2058M NJM2058M
NJM2058M
D96S
10 - 1
IC1804B
NJM2058M
METER
AMP
AGC
SMLS AGCS
CTRL
Q903 XP4312
Q904 XP4312
Q905 XP4312
IC1001A
NJM2058M
IC1001B IC1002B IC1002C
NJM2058M IC1002A Q1002 BU4053BCFV
BU4053BCFV
2SJ364
AF
LPF AF
SELECT
SQL
SELECT
SQLS
IC453A
DSSW
NJM2058M
IC452A Q407
IC453B BU4053BCFV 2SJ364
NJM2058M
SQLM
AF
SELECT SQL
LPF Q953
XP4601
CTCS LPF
IC1803-8
IC1001C
M62363FP
NJM2058M
ETON
CENS
1FTM
OUTS
NSQS
Q351 Q350
FI151
3SK131 2SC4116
FL-128
XTAL
IF
BUFF
AMP BPF
Q151
XP4312
1F1M
DRIVER
OPTION
FL-132
XTAL
BPF
Q152
XP4312
1F2M
DRIVER
Q153
XP4312
1FTM DRIVER
Q201
TCWS
DTC144EU
KDS D201
1SS355
D207
IC201 1SS355
NJM1496V
CAR
CTRL
IC1651B IC1651A IC1652A D253 Q254 Q253
NJM4565M NJM4565M IC1803-7 NJM2058M 1SV217 2SC4116 FMW1
M62363FP
PRE- FM LIMIT
LPF BUFF
EMPH
MOD AMP
X251
TONE CR-451
DEV
AMP OVDV
DET
IC1654A
IC1807D
D/A
NJM4565M NJM2058M
D1652
POCV
IC1521 MA2S728
DRVV
M62352GP
RFGM
RFGS
MICV Q107 XP4312 Q105 D371 Q101
Q52 2SC4116 2SC4116 1SS375 2SK882
ALUD
VATT
NB NB IF
AMP
UATT CTRL AMP
DET
AMP UTU2
Q103
XP4601
IC1522A
NB AGC
NJM2058M NBSM
SW AMP
UTU1
Q106
VTU2
DTC144EU
VTU1
Q902 2SC4116
D903 MA728
RF
GAIN RFGS
CTRL
Q852 R857 Q851 Q850
Q901 D902
3SK131 RV-110 3SK131 2SC4116
2SC4116 1SS375
AGC AGC IF IF
BUFF
AMP AMP AMP
DET
IC851
1F1S
TA4101F
AGCS
IC1001D Q951
NJM2058M XP4312
HPF DRIVER WNCS
FI511
1F2S
CFWS455HT
AF1S
AF2S CERAMIC
AFRP BPF
IC951
FI512 TA31136FN (D)
CFWS455E
CERAMIC
BPF
Q1001
2SK1829
FM
AF BFOS
DE-
DET
AMP
LEVEL
EMPHA
SW
Q952
2SK1829
DET
CTRL
1FTS
X951
CDBM455C24
IC1804A
NJM2085M
METER
AMP
Q652 2SC4116 Q705
Q707 XP4312 2SC4116
NB
AMP
CTRL
Q51
3SK131
IF
AMP
NB
NBSS
SW
FI51
FL-211
Q706
AGCM
DTC144EU
XTAL
BPF
Q1
3SK131
IF
AMP
Q21 DTC144EU
Q22 DTC144EU
IC1481
IC1511 D21 1SS355
BU4094BCFV
BU4094BCFV
WAVE
SHIFT
SHIFT FORM
REGIS- REGIS- CTRL
TOR
TOR
1F1S
1F2S D1ST
1FTS DPST
NBSS SPST
WNCS PAST
AGSS MAST
AGFS SUST
DCON D0ST
IC1451 IC1471
BU4094BCFV BU4094BCFV
IC1461 IC1491
BU4094BCFV BU4094BCFV
SHIFT
SHIFT
REGIS- REGIS-
TOR
TOR
144M 1F1M
144S 1F2M
VPRI 1FTM
RBDS NBSM
430M WNCM
430S
AGSM
UPRI AGFM
EXTG UNFM
MUTM DSPM
MUTS DSPS
PCON DSSW
PHCO
STLS
PIF AF1M
AF2M
D96S
CWVR AF1S
COMS AF2S
IC1601B
NJM2058M
FOR
ALC
IC101 Q102 AMP 1FOR
2SK882
LA1150N POCV
IC1601C
IF IF
NJM2058M
AMP AMP
APC
REF
AMP
IC1601D
NJM2058M
ICH
APC
ALC
AMP
IC1601A ICL
NJM2058M
1ICL
from UX-910
ALCL AMP
EALC
G
to
FI751 PA
UNIT
FL-129
H
XTAL
BPF
Q751
XP4312
DRIVER
OPTION
FL-133
XTAL
BPF
Q752
XP4312
DRIVER
Q651
FI651
3SK131
FL-212
IF
BPF
AMP
AGCS
Q753
XP4312
DRIVER
I
to
D701 Q701 IC701 Q702
1SS375 2SK882 LA1150N 2SK882 PA
UNIT
NB IF IF IF
DET AMP AMP AMP J
Q703
XP4601
AGC
AMP
KDS
IC803
TA7805S
+5
5V 14V
REG
IC801
BA09T
+9
9V
REG
Q801
2SD1664
Q831
DTC144EU
D804
DA221
R9V
R9V
REG
Q805
XP4312
Q806
RXS
DTC144EU
Q807
2SA1586
Q808
DTC144EU
Q809
XP4312
Q810
2SA1586
VR9V
SW
UR9V
Q804 2SD1801
144M
Q816 2SC4116
144S Q817 2SC4116
D805 1SS355
430M
D807 DA221
430S
T9V
T9V
REG
Q811
2SA1588
Q812
DTC144EU TXS
Q813
2SA1588
Q814
DTC144EU
Q815
2SA1588
D806
DAP222
COMMON LINE
VUT9
LINE
VT9V SW
UT9V
RX LINE
144M TX LINE
430M
DATA BUS LINE