Icom IC-PCR1500 Service Manual page 63

A
B
C
+8V
MAIN-A UNIT
Measurement conditions
Explanatory notes
for voltage value
+B LINE
[Frequency: 146.02 MHz, Mode: FM
RX LINE (PCR1500/2500)
BW: 15 kHz] [none signals]
[Measureing each conditions]
R279
C410
220 0.01
Q48
2SC4116
0.48V
MP12
C297 R201 2879
0.01 1k
D
6.75V
R272
+8V 100
6.1V
1.69V
L136
C388
C442
C2012C 22P
Q47
E 22P
2SC5193
C409 Q50
1P 2SC4835
C394
1.17V R316
10P L143
1.86V 18
2.2H
1.4
L158
33nH
R303
254.947301–257.0027 MHz 470
R317
C459
47
4P
1.56V
R240
3.3K
+5V
L122
C366
82nH
10P
F
C373
0.001
Q41
0.69V
2SC4215
+8V
G
H
R86 R118
18K 18K
IC7
NJM2902V
R100 R112
82K 82K
1 14
2 13
3 12
A-5V
4 11
R74
5 10
A+33V 100
6 9
7 8
R93
R87 R113
82K
18K 82K
R119
18K
+5V
IC8 M62363FP
13 12 AGCSV
VIN5 VIN4 11
14 AGCSET
VOUT5 VOUT4
15 10 IFCON
VOUT6 VOUT3
16 9
VIN6 VIN3 DAT
17 8
DO DI
18 7 CK
VDAREF CLK
19 6 DSTB
RESET LD
20 5
GND VDD
21 4
VIN7 VIN2
T2 3 REFV
22
VOUT7 VOUT2
T1 2 SQLSET
23
VOUT8 VOUT1
24
1
I VIN8 VIN1
C219
FDET
J
0.01
K
L
M
+8V
L123
C2012C
0V
Q90
7.99V
XP4311
4 3
5 2
0V 6 1
7.26V
R304
R342
100 100K
IC21
TC7S04FU
C439 C444 C450 C457 L159 L161 C467 PFL4
33P 150P 82P 180P 0.33H 0.47H 0.0047 1 5
2
3 4
C463
39P
PFL3
4.80V
C495
10 MSVA
1 33
VSS I
2 32
FSK1 Q
3 31
FSK0 PDM2
4 30
ETC0 PDM1
5 IC22 29
ETC1 PDM0
6 28
VDD SC-1287 VDD
7 27
SYS_CLK VSS
8 26
NUM0 RESET
9 25
NUM1 ROMCE
10 24
NUM2 VDD
11 23
VDD DA9
R376 R389 R394 R397 R400 R407 R412 R419 R423 C531
1K 1K 1K 1K 1K 1K 1K 1K 1K 0.1
R306 C436 R292
10K 0.22 4.7K
+5V
AFO
IC31
0V
5
1 LMV321IDCK
C641
C640
4 IC27
0.015
0.047
3 CD4066BPWR
2 1 14
I/O1 VDD
2 13
C642 O/I1 CONT1
12
3
0.1 O/I2 CONT4
11
R550 4
I/O2 I/O4
10
22K 5
CONT2 O/I4
9
6
CONT3 O/I3
8
7
VSS I/O3
0V
0V
11 - 4
C670
0.1
C671
0.001
2.72V
L135 6.13V
L126
C371 18nH
C2012C
0.001
0.89V
IC19 TA4107F
0.25V
1 LO1 8
Q44 LO2
L170 C447
2 VCC 7
3SK131 GND
3 RF2 6 1H 0.001
IF2
1.87V 4 RF1 5
IF1
1.69V
R264 C392
0
0.001
FI2
SFECV10M7CQ0C01
R276
10 I O
Q42
XP4311
4 3
5 2
6 1
IC20 TA31136FNG C397
0.01
1 OSCIN 16
MIXIN
2 OSCOUT 15
GND
3 MIXOUT 14
10.05 –10.35 MHz/ N-REC
4 VCC 13
N-DET
5 IFIN 12
RSSI
11.25 –11.35 MHz 6 DEC 11
IFOUT
7 FILOUT 10
QUAD
8 FILIN 9
AFOUT
L137 L140
I O
C381
27H 12H
12P
FI4
C376
C391
CFWS450HT 447.3–452.7 kHz
20P
5P
C417 C427 L148 L153
270P 390P 470H 470H
C443
68P
R278
2.2K
WFM/NB
4.74V
L131 R290 R307 R311
47H 7.69V 10K 47K 4.7K /WF5
IC16
LA1145M
1 20
NC NC Q57
2 19
IFIN SDOUT UNR9213J
3 18
IFB SD R294
4 17
IFGND RSSI 0
5 16
MSTRT MUTE
6 15
R254
MSLP DETGND
7 14
220K
MATT IFCNT
8 13
DET VCC
9 12
AFC VOUT
10 11
R255 IFOUT QUAD
5.6K
Q58
X3 2SC4617
R256
CDSCB10M7GA141
10K
R267 C633
5.6K
10P
2.80V
Q43
R268
R258
2SC4617
10K
4.7K
0.48V
Q45
XP4601
4 3
Q49 Q52
5 2 R270 2SC4617 XP4311
330K
6 1 4 3
R283
5 2
4.7V 10K
0V 6 1
Q46 R284
UNR9213J 470
R610
0
R621
0
IC17 WFM
CD4094BPWR
Q53
1 16
MST2
UNR9111J
STR V+
DAT1 2 15
D OE AGCF
CK 3 14
CLK Q5 Q54
VCO2 4 13 SCAN
Q1 Q6 XP1114
C674 PFL4 5 12 PFL3
Q2 Q7 WFM FL2 1 5
0.001 6 11
Q3 Q8
7 10
2
Q4 Q'S
8 9
GND QS
FL3
3 4
C676
C675
0.001
0.001 FL4 FL0 1 5
FL5
Q55
2
XP1114
OE
FL1 3 4
MST1 1 16
STR V+
DAT 2 15
D OE
CK 3 14 FL3
CLK Q5
SSB5 4 13 FL2 FL4 1 5
Q1 Q6
AM5 5 12 FL1
Q56
Q2 Q7 2
NB 6 11 FL0
XP1114
Q3 Q8
IFSW 7 10
FL5
Q4 Q'S 3 4
8 9
GND QS
Q59 XP4311
IC18
4 3
CD4094BPWR
5 2
6 1
WFM
C313
2.56V
0.01
Q60
2SC4617 Q66
3SK131
FI5
D66 R339 SFVLF10M7MF00 D70 C505 L168
MA2S077 MA2S077 0.01 15H
180
I O
R461 R535
1.88V
0 0
R340
100
FIL4
D67
R341
FI6 SFTLF10M7GA00
MA2S077
100
I O
0V
D71 0.68V
MA2S077
R347
100
Q65
2SC4617
/WF5
10.7 MHz (230 kHz)
WFM5
4.7V
5.91V
R348
L165
470
470H
Q62
C506
C489 2SK882
0.01
270P
0.64V
C490
0.01
C624
0.01
450 kHz (2.8 kHz)
Q80
2SC4617
FI7
D68 C585 D72
CFWS450K3
MA2S077 0.01 MA2S077
I O
C586
D93
0.01
D95
MA2S077
MA2S077
R349
100
450 kHz
C474
FIL0
0.1
FI8 (6 kHz)
CFWS450HT
I O
C587
C588
0.01 0.01
C518
0.01
R350
100
450 kHz
FIL1
FI9 (15 kHz)
D69 D73 Q64
C589 CFWS450E
MA2S077 0.01 MA2S077 UNR9213J
I O
D94 C590
0.01 R416 C523
MA2S077
1.8K 220P
D96
Q81
MA2S077
UNR9213J
R351
100
D74
R532
DAN222
1k
FIL2
R363
1.5K
FIL3
7.56V
R479
56K Q67
2SC4617
Q63
2SC4617 R594 R424
C497 R480
7.53V
18K 0
Q61 470P
NTCG16
2SK882
WFM5
4.46V
5.02V
0.63V
C516 R415
0.0047 1K
FIL2
D75
RB706F
FIL3
FIL0
R380 C504
10 0.1
FIL1
R395
100
IC23
4.73V
TA4101F
FIL4 R361 C485 C491 R386
4.7K 0.1 0.47 560
1 8
IFOUT COLECT
2 7
FIL5 VCC GND
3 6
OSCIN BASE
4 5
BASE BASE
/WF5
R538
0
+5VJ
6.0V
L169 D78
R476
LS-513
MA2S077
15
D90
MA2S077
2.04V
3.76V
C550
0.01
Q68
C524 2SK882
10P 5
1 IFCON
4
0.48V
3
2
IC28
LMV321IDCK
4.82V
4.69V
R527
150K
X1 CR-814 R456
100K REFV
4 1
VCC VCONT
3 2
OUT GND
C534 C632
0.01 9P
+5V
3.55V
0.61V
R469
1k
C549
1.14V
6P
Q71
2SC4835
1.75V
REF
R524 C622
1k 0.001
C569 R482
IC24 TA31136FNG
0.01 39
1 OSCIN 16
MIXIN
2 OSCOUT 15
GND C568 R483
3 MIXOUT
14
N-REC C558 0.001 2.2K
4 VCC 13
N-DET Q73
5 IFIN 12
RSSI 100P 2SC4617
6 DEC 11
IFOUT
7 FILOUT 10
QUAD
8 FILIN 9
AFOUT
4.34V
R506 +5V
1 5
22K
2
R467
3 4
2.2K
0V
AGCSV
IC26
4.85V
SN74AHC1G66HDBV3
FDET
R502 R474
1.31V
100 0
Q77
4.7V
2SA1832
IC32
5 LMV321IDCK Q76
1
2.04V
2SC4215
4
3
1.31V C591 R508
2 0.1 0 IFOUT
R578
0
NOIS
SQLSET
AGCSET
+5V
IC29
SN74AHC1G08DCK3
+5VJ
Q69
2SA1832 5
1
2
R472
3 4
22K
Q74
0V
XP1213
IFSW
AGCF
4 3
D76
MA2S728 2
R465
10K
5 1 SCAN
C567 D81
0V
Q70
0.01 1SS400
2SA1832
R475 C571 R485
6.8K 0.1 22K AFAM
R454
C563
1M 0.001
R436 R455 R463
680K
+8V 33K D80 R484
2.2M
4.81V +5VJ
6.8K
1SS400
IC25
A-5V NJM2904V
1 COM 8
VCC
2 INH 7
Y0
3 GND 6 AGCSV
Y1
4 GND 5
A
0V
IC30
R433 R445
SN74AHC2G53HDCT3
150K 47K
SMAD
SMAD
8.0V
R478 Q75
10K 2SC4617
Q72 4.24V
UNR9213J