Icom IC-F5121D Service Manual page 34

SECTION 10. BLOCK DIAGRAM
Q3
2SK880
LVIN
BUFF
to CPU
X2 IC8
CR-892 AK1541
15.3MHz
VCON REF PLL LOOP
IC FIL
SCK
Q4 SO
2SC4116 PLST
from/to
X3 LPF
CPU(FRONT)
45.9 MHz
BPF
Q13
LDTC114YE
W/N
SW
IC6
TA75S01F
DISC
AM P
I C1006
AK2330
VOL IC
SQIN
DET
to CPU
SQL
LEVEL
SSO
SCK
DAST
DISC
fro m
CPU
DISC
J1003
Ext.I/O 6 (IGSW ) to CPU(FRONT)
Ext.I/O 11 ( HORN) from CPU(FRONT)
I
CP4
(EAFO) from RX AF
CP4 CP_3
K
Ext.I/O 7 (AFO) PGIO4 to CPU(FRONT)
DISC CP_3
OPTIONAL
Q1007:LDTC114YE
CABLE
Q1010:LDTC114YE SIG
Q1009:2SJ144 to FM MOD
F
CP3
IN TX
F
SW
to FM MOD(TX VCO)
CP_3
Ext.I/O 14 (EPTT)
Ext.I/O 4 (SERIAL)
to CPU(FRONT)
Ext.I/O 10 (SERIAL)
OPTIONAL CABLE OPC-1939 PIN ASSIGNMENT
q GND (COMMON)
w Det. AF OUT (1 kΩ)
(240 mVrms ±3 dB at 1 kHz 60 % Dev.)
e GND (INPUT)
r Ext. I/O 4 (H:3 V, L: 0V) or TXD (RS-232C)
t N/C
y Ext. I/O 6 (H: 5–13.6 V, L: 0V) or
t q Ignition SW (Active: Power ON, Inactive: Power OFF)
u Ext. I/O 7 (H: 5 V, L: 0V) or
AF OUT (100 mVrms ±3 dB at 1 kHz 60 % Dev.)
!0 y
i GND (Det. AF)
o N/C
!1
!5
!0 Ext. I/O 10 (H: 3 V, L: 0V) or RXD (RS-232C)
!1 Ext. I/O 11 HORN OUT (100 mA max.; Open corrector)
!2 GND (AF OUT)
!3 Mod. IN (240 mVrms ±3 dB at 1 kHz 60 % Dev.)
!4 Ext. I/O 14 (H: 3 V, L: 0V) or
Ext. PTT (H: PTT OFF, L: PTT ON)
!5 VCC OUTPUT (0.3 A max.)
Q2
2SC4116
8V RIPPLE
FIL RX VCO
Q6:2SC4226
D 11:HVC375B D4:HVC376B
D5:HVC376B
RLVA RLV
AD J
D 12:HVC375B
TLVA TLV
AD J TX VCO
Q7:2SC4226
D6:HVC376B
D7:HVC376B
D10
FM HVL355CM
MOD
Q14
D13,D14:HVD144A
2SC5107
IF IC
IF
AM P
I C4:NJM2591V
F
from CPU(FRONT)
NWC
X1
MOD
RSSI NOIS I C2002
to CPU(FRONT) ADS7886SDCKR
DIF
JTBM450CX70
A/D
D8,D9:HVD144A
FI2
Q 1:LDTC114YE
LTM450FW
CERAMIC
W/N
SW BPF
FI1 450kHz
LTM450HW
CERAMIC
W/N
BPF
SW D2,D3:HVD144A
450kHz
NWC
from CPU(FRONT)
Q5 FI3
IC5
2SC4116 LTUCG450G
NJM2711F
CERAMIC
AM P
BUFF
BPF
I C2006
PCM3008T
A/D
I C1007
LINEAR CODEC NJM13403F
VCON
AMP
(to REF TCXO)
MAIN UNIT
OPTIONAL CABLE OPC-2078 PIN ASSIGNMENT
w Ext. Input 4 (H:5 V, L: 0V) or TXD (RS-232C)
e Ext. I/O 10 (H: 5 V, L: 0V) or RXD (RS-232C)
u GND (COMMON)
i Mod. IN (240 mVrms ±3 dB at 1 kHz 60 % Dev.)
o Det. AF OUT (1 kΩ)
(240 mVrms ±3 dB at 1 kHz 60 % Dev.)
!3
q
!0 Ext. I/O 11 HORN OUT (100 mA max.; Open corrector)
!1 VCC OUTPUT (0.3 A max.)
!4 GND (INPUT)
!4 GND (Det. AF)
!4
@5 !4 GND (AF OUT)
!5 Ext. I/O 6 (H: 5–13.6 V, L: 0V) or
Ignition SW (Active: Power ON, Inactive: Power OFF)
!9 Ext. I/O 14 (H: 3 V, L: 0V) or
Ext. PTT (H: PTT OFF, L: PTT ON)
@2 Ext. I/O 7 (H: 5 V, L: 0V) or
AF OUT (100 mVrms ±3 dB at 1 kHz 60 % Dev.)
10 - 1
Q10:XP1214
Q 8:LDTC114YE
VCO RXC
SW
Q12 Q15 D15,D16 Q17
2SC5006 2SC5006 HVD142A 2SC3357
LO
DRIVE
BUFF BUFF
SW AM P
Q11
2SC5006
182.35MHz-220.35MHz
ATT
AM P
from IF IC
( Analog)
46.35MHz D21
FI4
FL-442 D17,D18:HVD144A HVB350BYPTL
D/A XTAL D/A
BPF
SW BPF SW
Q19
3SK293
(Digital)
FI5
FL-448
ADS ADS
XTAL
from CPU(FRONT)
BPF
I C1006
I C2006 AK2330
I C1007
PCM3008T
NJM13403V
VOL IC
DAFO
VIN1 VOUT1
D/A AMP AF
LINEAR CODEC
SSO
SCK
BEEP DAST
from
De-Emphasis
CPU
Signaling
Decode from/to
CPU(FRONT)
DSP
I C2007 I C1006
TMS320VC5509AZHH AK2330 I C1007 I C2006
NJM13403V PCM3008T
VOL IC
DMO
LINEAR
MOD
LPF
MOD
CODEC
Splatter
LEVEL
I C1006 SSO
AK2330 SCK
DAST
VOL IC
fro m CPU
D
BAL
LEVEL
SIG
from ACC
SSO
SCK
DAST
from
CPU
VCC
8V
D1008:DA221
Q 1011:2SD1664
Q1018,Q1021:LDTC114YE
VCC
T8V T8 TXC
REG 8V
Q1013:2SA1577
Q1016:LDTC114YE
8V
R8
R8V
REG
RXC
Q1014:2SB1132
Q1015:XP6501
8V
+5
+5V
REG
Q1017:2SB1132
Q1019:XP6501
8V
+3.3V +3
REG
CPU3.3V
D24:RN752
D25:HVD142A
IC3
D26:HVD142A
RA30H1317M1A(25 W ver.)
D28:RN752
RA60H1317M1A(50 W ver.)
D32:HVD142A
PWR ANT
LPF LPF
AM P SW
Q22:2SK1829
RSSI AGC
Q20 D31 D37
HVC375B HVC375B
3SK293
RF
BPF BPF
AMP
T2
from D/A converter
EAFO
to ACC
I C1004 I C1009
TA75S01F LA4425A
PRE AF
AMP AM P
D1007:L1SS400
Q1008:DTC363EK
Q1012:LDTC114YE
AF AFON
AD S MUT E from VOL IC
from CPU(FRONT)
(Analog)
I C1008 IC1007
NJM13403V
TC7W53FK
Ana/Digi
IDC
SW
6dB/oct
IC7:TA75S01F
IC53:TC7W66FK
MIC
HPF AM P
DMI
ALC AMP
MCG0 (Mic Gain
MCG1 Control)
ALC IC
J IC1005 NJM2783V
CP_3
CP4
I C100 6
AK2330
T1
VOL IC
SSO
T2 SCK
DAST
BAL
TLVA
LEVEL
RLVA
CPU
from/to
IC51
DSP IC
HD64F2506RBR26DV
PLL IC
I C1002
VOL IC
NJM7808DL1A
ACC
+8 VCC
REG
Q1001:LDTC114YE
Q 1003:2SJ506S
HV
VCC POWE R
SW PWON
W2
I C1001
XC6408EN22PR
+3
REG CRES
136-174MHz
LPF
IC2
TA75S01F
D27:LRB706F
APC
DET D29:LRB706F
AMP PWR
D35:LRB706F
Q23:LDTC114YE
MUT E TMUT
SW
T1
from D/A converter
J1002
AFO
G
SP
J1
AFO
MIC
8V MIC
JACK
PTT
C LI CL O
D60
1SS390
FRONT UNIT
CSFT SHIFT
SW
X51
CR-912
12.288MHz
Q5
LDTC114YE
DS1-9
LNJ426W83RA
LIGT2 LIGT
CTRL
Q 1:2SC4116
Q2:LDTC114YE
LINH LIGT1 DIM
LCS IC6 CTRL
BU9795AKV
LCK
DS11
LSO
TAK-35877
LCD COM1-4
DRIVER SEG1-33
LCD
IC52
ESDA R1EX24512ASAS0A
ESCL
EEPROM
KEYX6
KR0-3,UP,DN
S2-S7
PUSH1
POSW
S1
POSW
PUSH1 POWER SW
AFVI
AF VR
R14
RK09D1130A1N