Section 7 Board Layouts - Icom IC-7100 Service Manual Addendum

SECTION 7. BOARD LAYOUTS
• DISPLAY UNIT B-7703E
(TOP VIEW)
GND
GND
8V
TDS
RDS
VR2K
VR1K C102
BNKBK
MCHBK C107
AFL
RFL C109
BNKAK
MCHAK
C111
3R3V
3R3V
D601
DTXD
IC601
DRXD
R605
BOOT0 C602
IC901
DS302 RIT DS301
PBT
R120
R119
S603
RIT
DS601
S608
TUNER/CALL
C302
D701 L303
R701 C705
C702
C303
C706
L302
R702
C703
S601 6 S 4 0
MENU
NB
DS605 DS602
S613 S609
RF PWR/MIC
SPEED/PITCH
7-1
[MAIN UNIT]
[MIC]
J401
F8VM
R1004
C1001 U/D
C405
EP708 E 7 P 6 0 EP704 EP705 E 7 P 7 0
C714 E 7 P 9 0 E 7 P 0 1
C710
C406
C414
C715
R417
C410
R410
R413
Q404
C412
X201
C114
C113
6 S 5 0 S610 S606
NOTCH SET
NR
DS606 DS603 DS607
6 S 4 1 6 S 5 1 S611
P.AMP/ATT DR Q U I C K
• VR UNIT B-7704C
(TOP VIEW)
B-7704C
S1
[PWR]•[AF]
[ELEC-KEY] [PHONES/SP]
J403 J402 3R3V
MAINDBK
MAINDAK
CLKK
FMSL GND
MICLE
GND
PTT SQLS
MICL
EP504 EP505 EP506
R504
RL801
R803
Q801
R801
S616 S602
AUTOTUNE/RX-CS SPEECH/LOCK
DS604 DS608
S607 S612
X F C MPAD
The combination of top side and bottom side of this
J1
DS1
R1
[M-CH]•[CLR]
C407
D801
C801