Block Diagram - Icom IC-V8000 Service Manual

SECTION 9

BLOCK DIAGRAM

IC1: LV2105V
REF
OSC
Q4: 2SC4116
D3: HVC376B
X1: CR-659
MAIN UNIT
LOGIC BOARD
IC2: TC4S66F
D4: DAN222 IC3a: NJM12902V
MOD
MIC MIC
EXT MIC HPF
JACK SW
IC1: TA75S393F
D1: MA8091
MICDATA
BUFF
Q1: 2SC4116
D2: MA2S111
PTT/
UP/DN
SW
+8V
Q1: 2SC4116
SHIFT VCO Q3: 2SC4116
REG
Q5: 2SC4116
Q8: DTA113ZU
Q6: 2SC4226
Q2: XP4601
D2: HVC375B
CP
D4: HVC375B
LO
PLL LOOP
OUT
IC FIL AMP
(LOOP-SW)
Q9: 2SC4406 Q11: 2SC4406
MOD
Q10: 2SK1069
Q7: 2SC4226
D5: HVC375B
DC AMP BUFF
Q12: 2SC4406
R5V
R5V
IC4: TA31136FN
IF DET-IC
LPF
(2nd-MIX, IF-AMP,
IF
NOISE-AMP, FMDET,
AMP
RSSI, SQLSW)
Q16:
2SC4406
X2: CDB450C24
Q13: DTA144EU
W/N SW
Q34: 2SC4116
D23–D26:
[USA] ONLY
MA2S111 X 4
CERAMIC CERAMIC
BPF BPF
FI1: FI2:
CFWS450HT
CFWS450F
MODIN
VOLIN
IC3c: NJM12902V
HPF
IC3d: NJM12902V IC3b: NJM12902V
MIC ANALOG SW RXAF/MODOUT
AMP IC6: BU4066BCFV
CTCSS/BEEP
DS19:
Q6: 2SA1576
L1-0256TAM
Q7, Q8, Q12: 2SC4116 X 3
EXP Q9: DTC144EU
DIMMER
LCD
PORT D20: DAN222
DS1, DS2, DS4, DS5, DS7, DS8, DS10, DS11:
IC8:
BU4094BCF
DS13, DS14, DS16–DS18: SML-310MT X 5
Q3: XP4601
IC7: HD6433876B53H
LPF
X1:
CPU
CR-663
Q4: DTC144EU
CLOCK
SHIFT
C5V
SD/NOIS
RESET EEPROM
LVIN
IC4: S-80942ANMP-DD6 IC5: HN58X2432TI
9 - 1
T8 SWHV
D6: MA77
Q18:
D7: MA77 2SK3074
TX/RX PRE
DRIVE
BUFF
DRIVE
SW
AMP
Q17: 2SC3356
LPF
R5V
D9: HVC350B
FI3: FL-310 D10: HVC350B
FI4: FL-310
D11: HVC350B
XTAL
RF
BPF
AMP
BPF
Q19:
Q27:
3SK272
T1 3SK272
T2
T3
SQLIN
DETO
DTC/FC
D/A
Q25: DTB113ZK
EXP
PORT
IC2: BU4094BCF
LPF
VOLOUT
SEC2422C X 8
D7–D9, D21: DAN222 X 4
INT/KEY
D11: 1SS133
MATRIX
D12–D17, D22, D23:
MA2S111 X 8
CLONE
BUFF
Q5: DTC144TU
D6: DA221
VOL
PDET
D12: XB15A407
HV HV
D27: XB15A407
D19: XB15A308
Q20: Q23:
2SK3075 RD70HVF1 D16: HVU131TRF
PWR ANT
DRIVE
LPF
AMP AMP SW
D28: MA742
APC
CTRL
APC PWR
CTRL DET
IC6a: NJM12904V D14: MA742
Q26: DTA144EU D17: MA742
IC6a: NJM12094V
D13: HVC350B D18: MA2S111 D15: 1SS355
BPF ATT LIMIT
T3
SQLATT
R5V T8 +5V +8V SWHV C5V
R5 T8 +5 +8 C5V
REG REG REG REG REG
Q14: 2SC1734 Q21: IC7:
Q15: 2SC4116 DTB113ZK TA7808F
Q22:
RXC
DTC144EU
TXC
PWRON
HVSW
Q28: 2SC4684
Q30: DTA143TUA
Q31: DTC143ZU
FANC/1/2 FUN
CTRL
Q32: 2SC4116
Q33: 2SB1132
D22: MA8075
SWHV
Q29: IC9:
2SC4213 LA4425A
AF AF
MUTE AMP
DIAL
SQL
TX
RX
COMMON
DATA/CONTROL/BUS, ets
ANTENNA
LPF
HV
IC8:
TA78L05F
J2:
52330-1217
CHASSIS
MF1
AF OUT
SP
CLONE
J1:
EXT SP-JACK
52330-1217
SP1