Icom IC-F4261DT Service Manual page 101

• MAIN-A/B/C UNIT (3/4)
R272
3.30V
15
+5V
R274 3.30V
0
EP8
NFM18PC104R1C3
C334
MMZ1005S601CT
EP15
MMZ1005S601CT
EP14
MMZ1005S601CT
EP13
MMZ1005S601CT
EP12
MMZ1005S601CT
5.00V
3.30V
NFM18PC104R1C3
C335
+3.3V_A
Analog 0V
Digital 4.75V
Q44
R273
4 3
100
5 2
8
6 1 V+
GND
DMG564030 4
IC18
NJM2115V
IF-FILTER
FI5
LTUCG450G
R262
3.3k
+3.3V_A +3.3V_A
C345
2.00V
R278 100k
0.0012
IC18
R268 2 IC18
1
R275 R276 R277
3 7
100
20k 20k 20k
NJM2115V
NJM2115V
1.35V
AGND
DVDD_3.3V
BDX0
EMU0
EMU1
BFSR0
BFSX0
GPIO2
GPIO3
GPIO4
GPIO5
CIRQO
GPIO7
PDC
CCSI
DRESET
BDR1
BDX1 R286
BCLKX1
BFSX1 1k
COUT
IC19
1 5
2
3 4
TC7S04FU IC21
5 1
2
4 3
TC7S04FU
IC20
1 5
CCSI 2
3 4
TC7S32FU
DVDD_3.3V
R289
22
R287
0.1
C349 4.7k
R280 R282
27k 5.6k
6
5
R293
C363
1
100
C359
Q45
2SC4617
1
R288 C364 R295
1 100
100
0.1 0.01
DSP
PDC
10k
R297
R298
10k
A/D BFSR0
R302
IC22 BDR0
1 6
VDD CS 1k
2 5
GND SDATA
3 4 BCLKR0
VIN SCLK
AD7476ARTZ
C377 R306 C385
LINEAR
1
2.2k 1
CODEC
R300
47k
IC23
1 16
VCOM OUTR
2 15
AINR AOUTL
3 14
AINL PWDAN
4 13
VSS PWADN
5 12
VDD SCLK
6 11
DEM0 MCLK
7 10
DEM1 LRCK
8 9
SDTO SDTI
AK4554VT
NFM18PC104R1C3
C500
EMU1
TMS
1
TRST
2
TDI
3
4
5
TDO
6
TCK
7
EMU0
8
9
10
11
BDX0
12
BFSX0
13
BCLKX0
14
15
BDR0
16
GPIO4
17
DRESET
18
GPIO10
19
GPIO09
20
DRESET
CS
SO
SCK
SI
GND
IC25
GPIO4 1 8
CS VCC
2 7
BDR0
D0(DQ1) NC(DQ3)
3 6
WP(DQ2) CLK
4 5
VSS DI(DQ0)
EN25Q40
BDX0
TSW
BCLKX0
R329
IC28
1
CIN 2
3
4
HD74LV2GT125A
R326
100
+5V
IC26
R320
1 8
CCS
OE1 VCC
2 7
100 A1 OE2
3 6
B2 B1
DVDD_3.3V 4 5
GND A2
TC7WBD125AFK
COUT
CCSI
CCLK
IC27
1 8
OE1 VCC
2 7
A1 OE2
DRESET 3 6
B2 B1
4 5
GND A2
TC7WBD125AFK
R322 47
12.288MHz
C402
1.35Vp-p
R328
DAFO
X5
4 3
VCC OUT
TSW 1 2
VCONT GND
Q46
CR-914
DRA9144E
GPIO2
GPIO3
BCLKX1
BFSX1
BDX1 CLOCK
*: Refer to the PARTS LIST for the value and name of component.
BDR1
11 - 4
HJ2
JTAG
BER
CP06S
CP115
CP111 CP06S
CP112 CP06S
CP113 CP06S
CP114
CP06S
CP128 CP06S
DSP FLASH
100
R335
CSI
10k
GPIO5
8
7 CIRQO
6
5
47P
CIRQD
R333
CSO
100
R334
CCK
100
R336
DRES
100
47P
5P
2.2k
5 IC29
4
C406
1
R339
3
0.1
2 0
NJM2711F