Block Diagram - Icom IC-PCR100 Service Manual

SECTION 10

BLOCK DIAGRAM

IC31 TC4S66F
Q58, Q59
Q54 XP4311
D89 1SS372
2SC4211
DELAY NOISE
NOISE
NOIN
CTRL DET AMP
Q41 XP4601
LPF
CTAD
IC14B BU4066 IC11 NJM2904
AF SW
HPF
Q44 DTC114EU Q43
IC14A BU4066 D62 1SS355 D63 1SS372 2SC4211
AM
AF SW ANL BUFF
DET
Q46,Q47 2SA1622
Q45
Q48 XP1213
2SC4211
AGC
AGC
CTRL
AGCF SCAN
Q33
2SC4117
AGC
AMP
IC14C IC24A
BU4066 NJM2904
R
AF SW LPF
IC24B
IC14D
NJM2904
BU4066
L
AF SW LPF
IC13A
NJM2904
METER
SMAD
AMP
J7
R AF
EXT SP
AMP
IC25
NJM2073
L AF
AMP
SP1
CHASSIS
UNIT
PWR
CTRL
IC15
AN78L05
J5 +5
POCO
REG
DC IN
IC19
PST592DMT
RESET
IC20 X25020SI
CPU
IC21
EEPROM
HD6433644A
5
9
4
IC9 µPD4723
8
3
RS-232
J3
7 I/F
2 X6
6 CR-567
1 9.8304 MHz
RS-232C
IC27 TC4S66F D56,D88
Q40 2SC4211 HVU359
FIL2
VXO
SW VXOV
ADJUST
FIL3
(2nd-IF 10.7 MHz)
X1
X2
CR-630
CDBCA450CX24
(10.25 MHz)
/WF5
NOIS
Q29
Q39 DTC144EU
3SK131
FM IC
NOISE IF
IC10
AMP
CTRL
TA31136
WFM5
AGC
Q38
2SK882
AMP
FIL3
FIL2
Q42
FIL3
FI7 CFWS450E
2SK882
IF
CERAMIC
AMP
BPF
BW: 15 kHz FIL2
FI6 CFWS450HT
AGC
CERAMIC
AMP
BPF
BW: 6 kHz FIL1
(3rd-IF 450 kHz)
X3 X4
CSB456F15 CDA10.7MG46-A
WFM
STEREO IC
R OUT
IC7
LA1832M
L OUT
IC23
M62429 IC29
R
TC4S66
ELECT
L
VR
AF SW
SWAF
IC16 TA7805
D101 MA8130
+5
D102 1SS355
+5
REG
Q54 2SB1201
IC18 BA6161
Q55 DTC144EU
D51 1SS355
Q67 2SC4211
+33
REG
IC17 TA7808
+8
+8
REG
NOIN
IC22B M5223
L1AD
TUNE
SMAD
CTRL
IC22A M5223
CTAD
AJAST
CTRL
IC30 M62354
HFPR
D/A
VXDV
10 - 1
RF UNIT
FI3
BW:230 kHz
SFT10.7MS2-A
(1st-IF 266.7 MHz)
BPF
FI1
IC5 IC4
Q13
µPC2721 EFCH266MWNT1 µPC2721
3SK131
IF
BPF BPF
AMP
FI2 BW: 3 MHz
BW:50 kHz
SFE10.7MV
1st Lo
AGC
FIL4 FIL5
ATT
2nd-Lo
B0
IC1 BU4094
B1
BUFF DRIVER
B2
B3
Q4,Q5,Q6,Q7
XP1114
B4
B5
B6
B7
Q56
XP4311
/WF5 BUFF
WFM5
IC3
BU4094
FM5
DRIVER
FIL1 BUFF
AGC
FIL2
Q30,Q51,Q61
FIL3
XP1114
Q52 DTA114EU
FIL4
FIL5
AM5
+33
LPF
Lo-f : 266.7-532.35 MHz
TUNV
REFV
2nd-Lo: 255-257 MHz
LPF
B0
–1.8 MHz
LPF
B1
Q12
1.8–15 MHz D9 1SV307
2SK2171
RF
HPF LPF
AMP
B2
Q57
XP4311
15–30 MHz
RF-AMP
HPF LPF
CTRL
B3
30–50 MHz
HPF
HFPR
B4
Q8 3SK228
TUNED HPF
AMP
(BPF1)
B5
Q9 3SK228
HPF
TUNED
AMP
(BPF2)
B6
Q10 3SK228
HPF
TUNED
AMP
(BPF3)
B7
Q11 3SK228
HPF
TUNED
AMP
(BPF4)
IC13B
NJM2904 TUNV
AGC
Q27
AMP
2SC4835
AMP
IC26
Lo-f : 532.4-1066.65 MHz
µPC2709
LPF BUFF
Q21 DTA114EU
PFL2
SW
IC6
Q22
µPB1508
2SC4835
VCO1: 532.4-749.95 MHz
AMP 1 / 2
HPF
VCO2: 750.0-1066.65 MHz
Q24
2SK880
L1AD
BUFF
Q35 Q34 2SC5193
2SC4835
(VCO3)
ATT BUFF
D72,D73,D74
1SV217
CHASSIS
UNIT
J1 (ANT)
GND
D1, D75 1SV307
AGC LPF ATT
<50 MHz
Q49 2SC4211
SMAD
AGC
ATT ATTC
CTRL
CTRL
Q1 2SC4211
Q2 DTC144EU
Q3 DTA144EU
Q31 2SC4835
VC01
SW
<Note>
BPF1: 50–150 MHz
BPF2: 150–350 MHz
BPF3: 350–700 MHz
BPF4: 700–1300 MHz
HPF
RX LINE
LINE
DATA BUS
D48 1SV230
REF
REFV
ADJUST
X5
CR-629
12.8 MHz
Q14,Q15 2SC5193
Q25 2SK880
D39 1SV307
Q26 2SC4177
D40 1SV214
LOOP
PLL IC
FIL
IC8
MC145220
Q18,Q19 2SC5193
D42 1SV307
D43 1SV214
LPF
Q36 2SK880
Q37 2SC4117
LOOP
FIL