Block Diagram - Icom IC-F14 Service Manual Addendum

SECTION 9.

BLOCK DIAGRAM

LVIN
15.3MHz
IC7 X2 Q39:2SC4081
NJM12902 CR-783 Q40:2SA1576
BAL
CHARGE
TCXO
BUFF
REF PUMP
Q19 IC4
2SC4116
MB15A02
PLL
X3
IC
IF IC
45.9MHz
BPF
RSSI NOIS
SQIN
DET
LVA,T1,T2
MOD
D/A
DET
OPTION CONNECTOR
IC8
M62363FP
CTCSS/DTCS DEC
IC7
NJM12902
DET
LPF
IC5
NJM12902
LPF
IC5
NJM12902
CENC0-2
OPTION
LPF
Q27 S4
UNR9213J TP70TF5163
SIGO BEEPO DUSE CH
FIL
SW
SELECT
BUSY MMUTE
IC15
BR24L16FV
EEPROM
RMUTE
D28
MA2S077
AFONO CSFT SHIFT
SW
9 - 1
S5V
Q17
Q18
2SK880 2SC4116
Q14 2SC4226
D19,20:HVC376B
RIPPLE
BUFF
FIL D22
HVC375B RX VCO
LV
ADJ
LOOP
LV
FIL
Q20 D21
2SK3019 HVC375B TX VCO
FAST LV
SW ADJ
Q13
2SC4226
D16,17:HVC376B
LPF
IC7
NJM12902
FM
D18
BUFF
MOD 1SV239
IC1:TA31136FN
FI2 Q26
UNR9213J
X1
CERAMIC
W/N
BPF SW
CDBC450CX24
ALFYM450F=K
450KHz
IC6 Q34
NJM13403 2SK3019
RX
HPF
MUTE
DISC
IC6
NJM13403
CTCSS/DTCS
LPF
TONE
IC5
NJM12902
SENC0-3
LPF
IC7
NJM12902
R131
TEMP
AMP
CDEC
SDEC
CPU
F1
IC13
F2
IC14
BD5242
RES
RESET
CPU5
19.6608MHz Q32:XP4216
X3
CR-764
LED
CTRL
CL-165HR
MAIN UNIT
Q15:XP1214
Q16:UNR9213J
VCO R5V
SW
Q12 Q10 D14,D15
2SC5107 2SC5107
MA2S077
TX/RX
BUFF BUFF
SW
Q11
2SC5107
BUFF ATT
182.35MHz-220.35MHz
Q4 FI1 D10
1
2SC5107 FL-335 Q3 HVC350B
46.35MHz 3SK324
IF XTAL
BPF
AMP BPF
MIXER
T2
IC10
CD4066 IC6
RMUT NJM13403
HPF
IC6
NJM13403
MMUT
ANALOG
AMP
SW
RMUT
TMUT
Q21
2SA1577
T5C
T5 T5V
R5C REG
Q23:2SB1132
Q24:XP6501 Q22
Q25:UNR9113J 2SA1577
S5C
S5 R5 R5V
VCC REG REG
S5V
+5 +5V
REG
IC9
NJM2870
G
R
DS1
Q8 Q7 D1
Q9
2SC5110 RD01MUS1 RD07MVS1 RB876W
PRE PWR PWR
DRIVE
DRIVE
AMP AMP
DET
Q1
IC2
2SK1829
TA75S01F
RSSI GATE APC
CTRL AMP
T2
D9 D4 D8
HVC350B HVC375B HVC375B
RF
BPF BPF BPF
AMP
Q2
3SK293
T1
OPTION CONNECTOR
MCOT MCIN
Q35
2SK3019
MIC
MUTE
Q28:UNR911HJ
PTT
DET
PTT PTTI
OPTION CONNECTOR
IC12
TA7368F
AF VOL
AF
AMP
Q30:2SA2048
Q31:XP6501
AFON
PWR
CTRL
AFONO
Q29:UNR9210J
D26:RB876W
CLONE
BUFF
F1
VCC 1 2
Explanatory notes
CONTROL LINE
COMMON LINE
TX LINE
RX LINE
DATA LINE
136-174MHz
D2:1SV307
D5:1SV307
ANT
LPF
SW
Q6
UNR9113J
MUTE
SW
TMUT
J2
HSJ1122-010010
MC1
PTT
HSJ1456-010320
J3
J1
SP1
1
2
BM02B-ASRS-TF