Icom IC-7851 - Page 142

8-4
MT48LC16M16A2Px2
IC4101/IC4151
SDRAM
A3R12E40x2
IC3101/IC3151
DDR2
SDRAM
RTL8139C+
IC5001
LAN
DRIVER
LCD
EP1
T070W2D6
IC3601
TDS701
SD Card
CTRL
BRIGHT
CTRL
IC411/IC501/Q503-Q506
NJM2730/TC7S14/LDTC144EEx4
JS28F128J3Fx2
IC3201/IC3251
FLASH
IC4251
ADV7511
DVI
TRANS-
MITTER
IC4201
ADV7123
VIDEO
DAC
X3511
CR-876
TCXO
CR-924
X6001
CR-780
X4001
CR-751A
X5031
IC371
BIAS
CTRL
SN74AHC1G32
IC381
USB
CODEC
PCM2901E
IC291
TUSB2046
USB
HUB
Q401
SW
LDTC114EE
CTRL
Q371
SW
LDTC114EE
CI-V
I/F
IC6101
USB
BRIDGE
CP2102
CI-V
I/F
IC201-IC205
CD4051x5
MUX
RX-4581
IC251
RTC
S/P
CONV
IC206-IC207
BU2099x2
BATTERY
CR-870
X381
CR-890
X291
MAIN DIAL
SUB DIAL
RIT DIAL
D/A
IC261
R2A20169SA
IC301
R5F36406
FRONT
CPU
RESET
IC271
R3112N281A
EEPROM
IC6065
M24M01
IC6001
R5F56316
MAIN
CPU2
IC3301
IDT70V24L15
RAM
IC3401
LCMX02-640UHC
FPGA1
IC6201
LCMX02-640UHC
FPGA2
IC3001
R8A77850
MAIN
CPU1
DIM
CTRL
IC421/Q401/Q402/Q403/Q404
NJM2904/2SB1201/L2SC4081/
2SB1132/L2SC4081
IC4001
HD64404
GDC
CR-850A
X3501
EEPROM
BR93L46F
IC5021
BUFF
IC4271
SN74LVC1G08
IC6121
USB
BRIDGE
CP2102
SW
IC401
CD4053B
DC-DC
IC2301/Q2301-Q2302
ADP2323/SSM3K131x2
PWR
CTRL
Q2011
TJ50S06M3L
DC-DC
IC2101
TPS62110
PWR
CTRL
Q2001
TPCF8107
DC-DC
IC2121
TPS62110
DC-DC
IC2141
TPS62110
DC-DC
IC2221
TPS62110
DC-DC
IC2241/Q2241-Q2242
ADP2323/SSM3K131x2
DC-DC
IC2351
ADP2384
DC-DC
IC2201
TPS62110
IC2051
XC6221A332
+3.3
REG
IC2061
XC6221A332
+3.3
REG
1/4
IC2161/IC2162
SN74AHC74/TC4SU69
CR-838
X2161
BUFF
IC2162
TC4SU69
IC4292/IC4293
SW
BD6517/TC7WH14
PCI BUS
EXTERNAL
DISPLAY
(DVI)
LOGIC UNIT
FRONT UNIT
25.000MHz
48.000MHz
33.333MHz
16.384MHz
12.288MHz
128kB
DVICK/DVIDAT
USB_AF_R
UMOD
VBUS
USB_AF_L
VBUS3.3V
VBUS
VBUS
MAIN UNIT
CI-V
SUB TWIN PBT
SUB APF/NOTCH
CW PITCH
PBT2 UNIT
PBT1 UNIT
MAIN TWIN PBT
MAIN APF/NOTCH
LED
UNIT
SW-C UNIT
TENKEY UNIT
VOX GAIN
CONTRAST
MONI GAIN
COMP
ANTI VOX
BRIGHT
DRIVE
VR-D UNIT
VR-C UNIT
KEY DELAY
SUB AGC/SQL
VR-B UNIT
MIC/PWR
MAIN AGC/SQL
SW-A UNIT
MIC
JACK
PHONE
JACK
MIC UNIT
JACK UNIT
VR-E UNIT
MAIN RF/AF
MAIN NB/NR
SW-B UNIT
DISPLAY UNIT
SUB RF/AF
SUB NB/NR
VR-A UNIT
SD UNIT
MAIN UNIT
MICI
SH BUS
RX BUS
6.000MHz
12.000MHz
LAN
S/P DIF OUT
S/P DIF IN
USB-A
USB-B
+11V
PWRS
+3R3V
LG_PWR
+15V
VDD5V
VDD3R3V
VDD1R5V
VDD1R1V
VDD1R8V
+8V
-12V
+15V
H5V
H3R3V
I5V
USB3R3V
VBUS
DCLK#
DCLK#
DCLK#
DCLK2#
DCLK2#
DCLK2#
DCLK2#
DCLK2#
CLK24M
VDD5V
y
SCHEMATIC
DIAGRAM
y
SCHEMATIC
DIAGRAM
TX
RX