Block Diagram - Icom IC-7100 Service Manual Addendum

February 2017
SECTION 9
Q102
RD01MUS2
Q251
RD15HVF1
PRE
DRIVE
DRIVE AMP
BIAS BIAS
PT8V DRIDV
Q101
6dB
2SK2854
RF
ATT
AMP
PT8V
BIAS
PT8V
RF
MUTE
Q181,D181,D182
KTC2875
MMBV3700×2
IC392
TA7808F
+8
14V P8V
REG
Q292
2SB1132
T8
P8V PVT8
CTRL
PVTXS
Q492
2SB1132
T8
PUT8
CTRL
PUTXS
PUR8
Q481
2SC3356
RF
AMP
PVR8
(Amended page)

BLOCK DIAGRAM

Q301,Q302
RD70HVF1×2
PWR
DIPLEXER
AMP
BIAS
HFID1V
HFID2V
HEAT
SENS
THML
fc=74.8MHz
HF/50M/70M
LPF
HR8V
IC432
CD74AHC595
JPRES
S/P
JMST
CONV
JFDAT
JMCK
Q501
RD70HUF2
PWR
AMP
BIAS
VUIDV
D431,D432
RN752×2
DIPLEXER MUTE
TB2V
Q451
3SK293
PRE
BPF BPF
AMP
Q452
LDTC143
CTRL UPRES
VBANDS
TB2V
Q551
3SK293
PRE
BPF BPF
AMP
Q552
LDTC143
CTRL VPRES
TX/RX
SW
T8R L1
L2
L3
Q771~Q774,
Q775~Q777,
L4
Q779
LDTC143×8
L1~L7,T8R
CTRL
L5
L6
L7
D422~D424 D433,D434
RN752×3 JDP2S12×2
fc=270M
TX/RX
MUTE HPF
SW
PVT8
PVT8
CTRL PUT8
Q421,Q422
LDTC143×2
fc=200M
TX/RX
LPF
SW
PVT8
TB1V VUATS
20dB
ATT
430M
(400~470MHz)
VBANDS
TB1V VUATS
20dB
ATT
144M
(74.8~200MHz)
21
D961,D962
0.03~2.0MHz LRB751S×2
PWR/SWR
LPF
2.0~4.0MHz
LPF
IC960
LM2904PWR
JHFOR
BUFF
4.0~7.3MHz
IC960
LPF
LM2904PWR
JHREF
BUFF
7.3~14.35MHz
LPF
14.35~21.45MHz
LPF
21.45~33.0MHz
PA UNIT
LPF
33.0~74.8MHz
LPF
D651/D661
LRB751S×2
fc=700M
430M
(400~470MHz)
PWR/SWR
LPF
IC651,Q651
LM2904PWR
LDTC143
FORL BUFF
JHFOR PVT8
IC651,Q661
LM2904PWR
LDTC143
REFL BUFF
JHREF PVT8
IC362
INA199A2
ID
DET
REVERSE
IDL CONNECT
PROTECT
EP1
D371~D373
DSA3A1×3
HV
Q391
TJ50S06M3L
14V
Q392
CTRL POWS
RUE002N02
Q791
DSC7004S
FAN
FANV
CTRL
EKEY
ESTA
14V
HF/50MHz/70MHz
ANTENNA
DET
144/430MHz
ANTENNA
DET
DC13.8V
FAN
J20012
1
2
3
TUNER
4