Section 9 Board Layouts; Main Unit - Icom IC-F50 Service Manual

SECTION 9

9-1 MAIN UNIT

•
TOP VIEW
J1
to the FRONT unit J401
36
VCC
VCC
NC
+5V
S5V
GND
GND
PWON
CSFT
DAST
MROF
MDIA
UNLK
TEMP
RSSI
LVIN
KR1
CDEC
SDEC
NOIS
MTCK
MTOT
EXOE
EXSM
SCAT
PLST
SCST
MSCK
MDIO
SCK
SO
SIGNAL
CDCS
TONE
GND
1 MIC
BOARD LAYOUTS
IC9
Q8
C106
R61
C111
R87
Q11
C206
C201
L42
C208
R109
IC17
C271
C303
R194
C304
C281 R192 R193
9 - 1
R168
R167
C295
C230
EP2
C87 C86
R4 C78
C83
C79 R2
R8 R5
D25
C98
R6
C76
C141
C104
L21
R100
C139
Q18
Q15
EP1
R101
R80
R89 C143
C147
C146
L28
C203
D18
C202
L43
R86 C145
R187
R104
R134
C251
C266
C247
C258 R128
C257 R127
IC10
R135 R126 C253
C263 C256 R123 C254
J1
J1 (CHASSIS UNIT)
C18
D8
R11
R14 C27
R13
C186
D4
R171 R172
C30 R12
C28
Q2
Q1
C32
C37 R16
R173
R20 C38
R174
D9
C23
R21
C43
R23
D10
R22
C224
C223 C221
R182
C222
R148
C180
R152
R154 R155
R151 C170
R153
C171
C243
IC6