Icom IC-F4261DT Service Manual page 32

SECTION 8. BOARD LAYOUTS
• MAIN-A/B/C UNIT
(TOP VIEW)
D36
CPU5V
R115 R378
CPU R405
R377 C429
R113
R114
R384
R404
J5
C433 C462
C423
R399 C464
C418
R401 R365
R352
C463
R398
R388
R363
R376
C439
R349
R358
Q52
R391
C327
R298
C354 IC21
R297
C341
R426
D32
R397
C339
EP8
D30
C372
R422
C348
R15 D28
L1
C41
C9
EP13
DISC
R341
C44
VCC
R11
C442
C37 R55 R47 C35
C12
C7
C43
R45
IC4
C117
C19
R5 R387
R19
C101
C13
C110
R13
SQL
C23
R33
R273
Q12
Q4
R 3 7 R2
C120 C64 R64 C63 R72
C107
R112 C476 R66
C122 R107
R104
C59
C450
C8 R3
R36 C62
R41 R67 IC3
C2
C1
C25
R9
C394 C332
EP15
R283
R49
R303
R58 R23 R17
C398 C16
C49 C22
R313 EP10
R57 R32
1.35V
C27 C26
DSP
L32
26
[Side3] [Side2]
1 S 2 S
Q19
C150 R150
X1
R143
R145
C138 D4
IC13 C143
R128
C127
C132
R136
D3
C137
MP6
C135
C175
LV R127
C254
C234
T5V
L11
R201
Q32
R204
R5V S5V
C225 C240
C74 D12
C75 C224
C244
R79
L19
Q6
Q7
R 5 7 R 6 7
L13
C71 R84
C82
D15 Q31
R82
Q5
C229 C242 C261
MP1
C73
C228
Q9 C247
R92
R101
L18
C102
L2
L12
Q11
D14 Q30
C227 C241
C105
C226 C246
L17
Q15 R93
Q14
[PTT]
S4
R170
C221
Q27
GND
C176 +5V
+5V
PWRSW
AFVI
R186 FI3
CBI0
CBI1
C485
CBI2
R190
CBI3
C486
GND
C487
R413
C315
R255
R256
D23
L24
R171
T2
C282
C190
EP21
+5V
Q38
R220
C503
R230
B7664E
+3.3V
R237 Q17
D2
C297
C126
L26
C123
C125 R125
The combination of top side and bottom side of this
[Side1]
S3
VR
C307
Q41
GND
NC
T1
NC
+3.3V
NC
NC
NC
G_TXD
NC
EP17
+3.3V
GPS
C449
C481