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SCHEMATIC DIAGRAMS
To upgrade quality, some components may be
subject to change without notice.
A-7290-3EX-
w
Printed in Japan
© 2015–2016 Icom Inc.
t
LRXD
S22
LCD
2SB1132L
LIMITER
Q462
Q461
L2SA1576AR
LCD
LIGHT
LTXD
AFO
SEND
SW
DSC7004S
Q492
Q493
LDTA114
Q491
L2SC4081
TW-CTRL
IC152
UC6528
PWRK
TPS61161ADRV
IC101
LCD
LIGHT
CTRL
LCD-TW
FRES
SQL
LDTC143ZE
Q481
CTRL
Q1
LDTC143ZE
HT-191UYG
DS1
R
G
SEC2462C
DS1107
AFE
CTRL
Q3
LDTC143ZE
CTRL
Q2
LDTC143ZE
J1
1
2
3
4
5
6
7
8
MICI
MICE
J1
EX-2500
[TUNER]
PUSH-SWs
FSENI
[P.AMP/ATT]
DISPLAY UNIT
FSQS
[QUICK]
FLRXD
CPU
PBAAK/PBABK/PBBAK/PBBBK/PCLEK
[POWER KEY]
FLTXD
FRONT
MAINDAK/MAINDBK
PWRK
[SCOPE]
[TS]
FTRAS
[AUTO_TUNE]
FUDL
[RIT]
3R3V
[NOTCH]
[NB]
PWRK
[MENU]
[NR]
8V
[SET]
BKLV
TDS
RDS
R5F104LCAFB
IC501
FRONT UNIT
SD UNIT
PBT UNIT
[RF/SQL]
[AF GAIN]
SDWP/SDCD/SDDAT1/SDDAT0
VDD
SDCLK/SDCMD/SDDAT3/SDDAT2
[TRANSMIT]
[CLEAR]
[dTX]
[CLEAR]
[SPEECH/LOCK]
[SPLIT]
[A/B]
[V/M]
[M-CH DN]
[MP]
MAIN DIAL
RFL/AFL
TWDCLC/TWCS/TWDTX
TWBUSY/TWDRX/TWPIRQ
R3-R7/G2-G7/B3-B7
DE/VSYNC/HSYNC/CLK/DISP
PHK
[XFC]
GND
MIC U/D
MIC
+8V
SQL
PTT
MICE
5V
PWRDS
DS1(LCD)
VLED-/VLED+
To the MAIN UNIT
3R3V
VR UNIT
RIT UNIT
MFDAK/MFDBK/MFK
PHONE UNIT
MIC UNIT
AF OUT
[M-CH UP]
XR/YD/XL/YU
3R3V
MICI
MICE
FROM MAIN
To the MAIN UNIT
BLOCK DIAGRAM (BLOCK DIAGRAM-3)