Icom IC-F21S Two-Way Radio User Manual


 
SECTION 9 BOARD LAYOUTS
9 - 1
9-1 MAIN UNIT
TOP VIEW
C196
C194
R159
R222
R223
R224
R122
R151
C223
R143
EP7
R145
R146
R187
R195
R188
R193
R190
C226
C242
C243
R215
R224
R225
R226C245
C246
R155
C191
C258
C225
C224
R191
R189
R194
R245
C58
R163
C43
L11
X3
R50
R22
R31
R23
R24
R51
R164
C84
C85
C252
D6
R32
C67
C63
C65
C253
C206
D19
C86
C87
C88 C192
C68
C69
R34
R244
X1
C70
R153
R169
C210
C207
R170
C209
C208
C201
C197
C259
C205
Q25
Q24
Q23
IC10
Q11
Q6
R25
C44
C64
C66
C40
C41
C53
C52
R21
D7
D5
L17
L14
W4
C54
Q10
Q7
Q5
C46
R26
C51
R19
R20
C38
C50
EP2
C55
R214
L10
C48
R28
R29
R192
C229
C230
Q30
IC13
IC16
R156
C193
L29
R196
C228
R197
C231
R198
R102
C164
R238
C213
C166
C27
R8
R10
J3
R7
R9
C26
R18
R221
C140
C124
R77
R78
D3
C37
C145
C143
R94
R112
R114
R13
R14
C35
R92
C125
R80
R81
R79
R16
R15
C260
R242
R115
R17
C36
L9
C33
C29
C28
Q4
Q3
IC5
R123
R121
R120
C174
R116
C175
R138
C185
R136
R113
R12
R166
R167
C204
C94
S2
C172
C188
R111
R110
C177
X2
R168
C214
C184
R137
R129
C31
R128
C93
R206
R208
R207
C236
R209
C234
S3
S1
C160
R104
C235
R203
C232
R204
R205
R139
R117
R11
C34
C233
W14
C30
C21
W2
C255
C20
C18
L30
L6
C159
C158
C157
C156
C9
C8
R2
C17
Q1
Q2
L3
C23
R54
R4
C24
R5
R56
R55
Q14
C237
R6
C25
C15
L8
R3
D2
J4
J5
J3
B5601C
R1
X2
MC1
D4
IC12
C163
FI2
X3
LV
X1
IC15
L13
L16
J2
J1
J2
to the SW-A/B units
1
7
GND
TLED
RLED
VCC
VOLIN
VOLOUT
CBI0
J1
to the SW-A unit
1
4
CBI3
CBI2
CBI1
CBI0
J3
to the speaker
1
2
GND
SP