Icom IC-F4261DT Service Manual page 92

• MAIN-A/B/C UNIT
(TOP VIEW)
D36
R341
CPU5V
VCC
R115 R378
CPU R405
R377 C429 C442
R113
R114
R384
R404
J5
C433 C462
C423
R399 C464
C418
R401 R365
R352
C463
R398 C110
R388
R363
R376
C439
R349
R273
R358
Q52
R391
C327
R298
C354 IC21
C120
R297
C341 D32
R426
R112
R397 C122 R107
C339
EP8 C8
D30
C372
C2
R422
C348
R15 D28
C394
R283
R303
L1
C41
C9 C398
R313
DSP
EP13
8 - 3
DISC
C44 X1
R11
C37 R55 R47 C35
C12
C7
C43
R45
IC4
C117
C19 R5 R387
T5V
R19
C101
C13
R13
SQL
R5V
C23
C74
R33
R79
Q6
Q12
Q4
R 3 7 R2 R 5 7 R 6 7
C64 R64 C63 R72 C71
C82
C107
R66
R82
Q5
R104
C59
C73
C450
R3
R92
R101
R36 C62
C102
R41 R67 IC3
C1
L2
C25
R9
C332
EP15
R49
C105
R58 R23 R17
C16
C49 C22
EP10
R57 R32 Q15
1.35V
Q14
C27 C26
L32
[Side3] [Side2]
1 S 2 S
Q19
C150 R150
R143
R145
C138 D4
IC13 C143
R128 C127
C132
R136
D3
C137
MP6
C135
C175
LV R127
C234
C254
L11
R201
Q32
R204
S5V
C225 C240
D12
L24
C75 C224 R171
C244
L19
C282
C190
Q7
Q38
R220
L13
R84
R230
Q31
C229 C242 C261
MP1
D15
C228
Q9 C247
L18
R237
C297
L12
L26
Q11
D14 Q30
C227 C241
C226 C246
L17
R93
The combination of top side and bottom side of this
[PTT] [Side1]
VR
S4
R170
C221
Q27
GND
C176 +5V
+5V
PWRSW
AFVI
R186 FI3
CBI0
CBI1
C485
CBI2
R190
CBI3
C486
GND
C487
R413
C307
C315 Q41
R255
R256
D23
GND
NC
T1
NC
T2
+3.3V
NC
EP21
NC
+5V NC
G_TXD
NC
C503 EP17
+3.3V
B7664C
+3.3V
GPS
Q17
D2
C126 C449
C123 C481
C125 R125
S3