Icom IC-V82, Service Manual

Page: 27 / 34

10 - 1
SECTION 10 BLOCK DIAGRAM
• MAIN UNIT
TXC
CSHIFT
LEDC
ANTENNA
LPF
LPF
X3
BPF
AMP
BPF
BPF
ANT
SW
TX/RX
SW
RF
AMP
PWR
AMP
DRIVE
PRE
BUFF
BUFF
LO
AMP
IF
AMP
APC
CTRL
FIL
LOOP
DC
AMP
UNLOCK
DET
PLL
IC
LCD
HPF
CERAMIC
BPF
BPF
XTAL
X3:
CDBC450CX24
X2: CR-739
(9.8304 MHz)
DRIVE
AMP
LPF
D/A
D/A
LPF
BATT
GND
J3:
HSJ1456-010320
SP1
J7:
HSJ1621-019011
AF
AMP
D/A
VOLOUT VOLIN
J2:
HSJ1456-010320
PTT
S3
MIC:
KUC3523
S80:
TP70N00E2015F
E
UP
DICK
DIUD
DN
ALC
AMP
LPF
AMP
HPF
AMP
LPF
BPF
T1
T3 T1/T2
T5C R5C
PS5C
PSVCO PWRON
CLONE
THROUGH
232RX
ALC
ALC
THROUGH
SECRET
DIGI/AN
OP_PS
AFON
REFMV
DUSE
DIGI/AN
DIGI/AN
SECRET
TX_DIGI
DIGI CTCSS
DTCS
Q82: 2SC4116
MODIN
LIMIT
PWR
DET
D1: HVU131TRF
D2: MA77
D32, D33: MA742
IC3A: LMV324IPWR
Q37 : UNR9113J
Q1: RD12MVS1
D3: 1SV308
D4: MA2S077
Q74: 2SC5231 Q75: 2SC5231
Q12: 2SC4226
D50: MA728
D9: HVC375B D11, D12: HVC350B
Q12: 3SK31B
FI1: FL-335
Q14: 2SC5006
D63: DA221
Q76: 2SC5231
REF
OSC
X4: CR-783
Q34: 2SK1069
UNLK
LVIN
IC19: MB15E03SL
OSCO FIN
D0
IC8: M30220FCRP
CPU
R5
REG
T5
IF DET-IC
(2nd-MIX, IF-AMP,
NOISE-AMP, FMDET,
IC2: TA31136FN
FI2: ALFY450F=K
DIGI_W
RSSI, SQLSW)
W/N SW
Q65: 2SC4116
LOOP
IC20: SN74AHC1G66HDBV
DS4: A01B001X
MIC
JACK
Q13: 3SK318
1st Lo
R5
R5
R5
Q3: 2SC5085 Q2: RD12MUS1
VCC
Tx: 136.000–174.000 MHz
Rx: 136.000–174.000 MHz
Rx: 182.350–220.350 MHz
Tx: 136.000–174.000 MHz
SW
CTCSS
LIMIT
46.350 MHz
(15.3MHz)
IC24: S-812C36AMC
VCC
SW
IC10 4/8:
M62363FP
VCO5
PS5
VCO
MOD
SW5V
CLOCK
SHIFT
D56: HVC376B
INITIAL/KEY MATRIX
D40–D49: 1SS400
IC10 3/8: M62363FP
SD, NOIS
SD, NOIS
LIGHT
DS2–DS3: LNJ310M6URA
Q25: 2SC4116
IC7: S-24CS64A0I
EEPROM
CPU5
RESET
IC21: BD5242G
RESET
TONE
FIL
VCC
TEMP.
SENS.
SW5V
TEMP
Q53: XP4601
FC
RMOD
SQLIN
DET
DET
DET
LVIN
UNLK
BATT
VCC
CPU5
REG
IC12: S-812C50AMC
VCC
SW5
REG
Q55: 2SB1132
Q57: XP1501
D39: 1SS400
T5
REG
T5
Q22: 2SA1576
R5
Q21: 2SA1576
REG
VCO5
REG
PS5
Q54: 2SA1576
PS5
Q11: XP4601
SW5V
Q56: UN9213
DATA
BUFF
D27: MA742
Q31: UNR9210J
CLONE
EMPHASIS
SW
SP
JACK
AF6V
OPT
MIC
SW5V
PTT
PTT
CONT
OPTION
UNIT
THROUGH
IC13 1/4: CD4066BPWR IC17: AN6123MS
ALC
SW
SW
IC13 1/4:
CD4066BPWR
IC13 1/4: CD4066BPWR
REG
ALC
Q16: XP6501
Q15: 2SB1132
Q63: 2SA1576
SW
ALC
SECRET
IC14 1/4:
CD4066BPWR
SW
ANALOG SW
IC4: CD4066BPWR
SHIFT
CUTOFF
232TX
TONE
SICO
CTCSS
CUTOFF
Q68: UNR9213J
SHIFT
OPTION
REG
VCC
+5V
Q61: 2SA1576
D51: 1SS400
REG
AF
VCC
+5V
REFMOD
AMP
REG
Q64: 2SA1576
DI/AN
SW
SW
DI/AN
MICOUT
D59, D60: MA2S304
D61: 1SV286
D64, D72: 1SS400
2nd Lo
45.90 MHz
IC25:
LMV321IDCK
IC15:
CD4066BPWR
IC15 2/4:
CD4066BPWR
D34: MA8056
Q17: UN911F
MICIN
SW
UN_SEC
UN_SEC
SECRET
SW
MICOUT
DI_SEC
SW
DI_SEC
AFOUT
SICO
AN
SW
AN
IC13 1/4:
CD4066BPWR IC14 1/4:
CD4066BPWR IC14 1/4:
CD4066BPWR
Q67: UMG2N
IC10: M62363FP 1/8
Q73: 2SC4617
IC5: NJM2070M
IC3 1/4: LMV324IPW
IC3 1/4:
LMV324IPW IC14 1/4:
CD4066BPWR
Q38: UNR9213J
IC3 1/4: LMV324IPW
R182: NTCG16
D66–D69: 1SS400
Q62: 2SC4116
SW
IC16: SN74AHC2C53HDCT
IC23:
LMV321IDCK
LIMIT
D72: 1SS400 D65: HVC350B
SHIFT
VCO
R5
PLLSW
Q81: 2SC4116
D58: MA2S077
Q77: UNR921NJ
CONTROL LINE
COMMON LINE
Explanatory notes
TX LINE
RX LINE
MAIN UNIT