Icom IC-756PRO Service Manual page 89

10-6 PLL UNIT
5V
32MHz_REF
P351
J351
to RF 1LOA
unit J561 IC191
TC7S08F
1 5
2
P651
J651
to RF 3 4 MKRSS
unit J661
C191
0.1
R139
47k
R101 2k
R102 2k
Q103
2SC4081
R104 2k
C124 0.0047
C123 0.0047
R106 2k
1 75
VSS ETCO0
2 74
SYSCLKO ETCO1
3 73
R108 2k VDD ETCO2
4 72
VDD VSS
5 71
VSS ETCO3
6 70
DA0 ETCO4
7 69
R110 2k DA1 VSS
8 68
DA2 ETCO5
9 67 DULS
DA3 ETCO6
10 66 MKRS
VSS ETCO7
11 65
R112 2k DA4 VSS
12 64
DA5 VDD
13 IC101 63
DA6 Q4MA
14 SC-1246A 62
DA7 Q16MA
15 61
R114 2k VSS VSS
16 60
VSS FCK
17 59
DA8 RC
18 58 MKRSS
DA9 REF_OSC
19 57
R116 2k DA10 VDD
20 56
DA11 PDTRI
21 55
VDD VSS
22 54
TE1 PD0
23 53
R118 2k TE2 VDD
24 52
TE3 PD1
25 51 ULDA
VDD PD2
R142
1k
R120 2k
R122 2k
R124 2k
R147
1k
DRES
5V
R127 1M
IC102
TC7S04F R130
FI101 10
1 5
C116 CFEC10.8MD11 C117 R304 L301 Q124
33 10uH UMD3N
0.1 0.1 W122
2 1
3 4 2
EP151
3
MMZ1608Y102B
8V
C118
0.1
IC382
TA78L05F 5.0V
R309 560
8V 1LOA 5V PLLA
C152 I 0
33p
L181 5.0V
G 10uH
R155 R181
180 1k
C120
0.1
C155
150p
Q151
2SK210
R394
L152 D152 1.8k
C161 5p
LB-343 HSM88AS
R132
IC381
47k C156 R156 C163 R159 LMX2306TM
150p 47k 0.0047 15
1
FLO VP
D153 Q152 2
1.8V 2SC4081 CPO VCC2
HSM88AS 3
GND FO/LD
4
R141 GND LE
Q102 5
2SC4081 0.6V 100 FIN DATA
6
C395 FIN CLOCK
0.01 7
VCC1 CE
8
OSCIN GND
C119 R131 R161 R160 W155 C381
0.0047 100 82 15 0.0047
4.8V 7.7V
5V
8V
32MHz_REF
L205 MEASUREMENT CONDITIONS
C150 R202 1812CS. C203 VOLTMETER
0.1 560 122XKBC 0.0047 C206 OSCILLOSCOPE :20MHz 1MΩ 25pF
1p VA4S
SUPPLY VOLTAGE :13.8V
DISPLAY
D202 KV1470 C202 Q201
Unselectde 0V
20p 2SK508
Selected 0.7V
6 5 4 L206
1812CS.
122XKBC C207
R203 0.0047
Q126 560
UMD3N
Q202
2SC4213
C201
0.0047 D201 KV1470
1 2 3
L126 10uH
VA1S
L225
R222 1812CS. C223
33 122XKBC 0.0047 C226
1p VA3S
D222 KV1470 C222 Q221
Unselectde 0V
56P 2SK508
6 5 4 Selected 0.7V
L226
1812CS.
122XKBC C227
Q123
R223 0.0047
UMD3N 470
Q222
2SC4213
1 2 3
L123 10uH D221 KV1470
VA2S
L255
R252 1812CS. C253
270 122XKBC 0.0047 C256
1p VA2S
C252 Q251
6 5 4 Unselectde 0V
150p 2SK508
Selected 0.7V
L256
1812CS.
Q122
122XKBC C257
UMD3N
R253 0.0047
560
Q252
1 2 3 2SC4213
L122 10uH
VA3S
L275
R272 1812CS. C273
560 122XKBC 0.0047 C276
1p VA1S
6 5 4
C272 Q271
Unselectde 0V
100p 2SK508 Selected 0.7V
L276
Q121
UMD3N 1812CS.
122XKBC C277
R273 0.0047
560
1 2 3
L121 10uH Q272
VA4S 2SC4213
R301 R275
1.8k 47
L124 7.5V C416
10uH 4.0V C324 0.0047 0.1
6 Q301
2SC4403
BELOW 7.999999MHz 0V
BELOW 7.999999MHz 4.6V
5 ABOVE 8.000000MHz 4.6V ABOVE 8.000000MHz 0V
3.3V C326 0.1
4
EP321
IC320
C302 C320 C322 uPC1678G R323 MMZ1608Y102B
L125 39p 39p 0.0047 10
1 8 5V 1L0A
10uH IN VCC
2 7
R321 GND GND
10 3 6 C350
GND GND 0.0047
4 5 Q351
GND OUT DTA114EE
3.6V R361
10k
W181
Q181
2SC4081 L355
4.7uH
R363
4.3V 10k
C311
0.0047 R351 D361
2.7k
L351 L352 L353 C358 C360 MA862 C361 R353
56nH 82nH 82nH 56P 56P 0.0047 18
1 4
W392 L382 L303
HF50ACC322513 47nH 2 3
C352 C354
-B
3p 2p R352
270
D380 C380
MA77 33 C305
16 7p Q361
D301 C355 D351 R362 DTC114EE
15
MA77 10p MA77 100
14 ULPA
13 R380 10k PST2
C307
12 R387 1k PDATA 12p
11 R385 1k PCKA
10 R386 1k
9
32MHz_REF
R492 L491 L492
:10MΩ 180 0.68uH 0.82uH
C492 C494
:14.1MHz USB
100p 39p
6 5 4
R439
47k
R401 2k
1 2 3
R402 2k
Q403
L426
2SC4081
10uH
R404 2k
C424 0.0047
C423 0.0047
R406 2k
6 5 4
1 75
VSS ETCO0
2 74
SYSCLKO ETCO1
3 73
R408 2k VDD ETCO2
4 72
VDD VSS
5 71
VSS ETCO3
6 70
DA0 ETCO4
7 69 1 2 3
R410 2k DA1 VSS
8 68
DA2 ETCO5
9 67
DA3 ETCO6 L423
10 66
VSS ETCO7 10uH
11 65
R412 2k DA4 VSS
12 64
DA5 VDD
13 IC401 63
DA6 Q4MA
14 SC-1246A 62
DA7 Q16MA
15 61
R414 2k VSS VSS
16 60 6 5 4
VSS FCK
17 59
DA8 RC
18 58
DA9 REF_OSC
19 57
R416 2k DA10 VDD
20 56
DA11 PDTRI
21 55
VDD VSS
22 54
TE1 PD0
23 53 1 2 3
R418 2k TE2 VDD
24 52
TE3 PD1
25 51 ULDB
VDD PD2 L422
R442 10uH
1k
R420 2k
R422 2k
6 5 4
R424 2k
R447
1 2 3
1k
L421
10uH
R427 1M
IC402 5V
TC7S04F R430
8V
FI401 10
1 5
CFEC10.8MD11 C417
0.1 W422 R604 L601 Q424
2 33 10uH UMD3N
1 6
3 4
2 5
EP451
MMZ1608Y102B
3 4
8V
C418
0.1
IC682
TA78L05F
R609 560
8V 1LOB 5V PLLB
C452 I 0
33p
L481
G 10uH Q481
R455 R481 2SC4081
180 1k
C420
0.1
J681
C455
150p
Q451
2SK210
R694 W692
L452 D452 1.8k
C461 5p
LB-343 HSM88AS
R432 D680
IC681
47k C456 R456 C463 R459 LMX2306TM MA77
150p 47k 0.0047 15
1 16
FLO VP
D453 Q452 2 15
2SC4081 CPO VCC2
HSM88AS 3 14
GND FO/LD
4 13 R680
R441 GND LE
Q402 5 12 R687
2SC4081 100 FIN DATA
6 11 R685
C695 FIN CLOCK
0.01 7 10 R686
VCC1 CE
8 9
OSCIN GND
C419 R431 R461 R660 W455 C681
0.0047 100 82 15 0.0047
5V
8V
ULPA
ULPB
L505 CON2A
C450 R502 1812CS. C503
ULDA
0.1 560 122XKBC 0.0047 C506
1p VB4S CON2B ULDB
D502 KV1470 C502 Q501
DULS
20p 2SK508
L506
1812CS.
122XKBC C507
CON2
R503 0.0047
Q426 560 DIVOUT
UMD3N PDATA MKRS
Q502
2SC4213 PCKA 32MHz_REF
C501
0.0047 D501 KV1470
VB1S
PDAT
L525 PCK
R522 1812CS. C523
PDAT
33 122XKBC 0.0047 C526
1p VB3S PCK
D522 KV1470 C522 Q521
56P 2SK508
L526
1812CS.
122XKBC C527
Q423
R523 0.0047
UMD3N 470
Q522
2SC4213
D521 KV1470
VB2S
L555
R552 1812CS. C553
270 122XKBC 0.0047 C556
1p VB2S
C552 Q551
150p 2SK508
L556
1812CS.
Q422
122XKBC C557
UMD3N
R553 0.0047
560
Q552
2SC4213
VB3S
R913
L575 100k
R572 1812CS. C573
560 122XKBC 0.0047 C576
1p
C572 Q571
100p 2SK508
L576
Q421 OFF 0V
UMD3N 1812CS. ON 2.7V
122XKBC C577
R573 0.0047
560
Q572
VB4S 2SC4213
L908
0.12uH
PBFS
C931
5V 5V
12p
8V 8V
L424 R601 R575 C624 0.0047
1.8k 47
10uH
PBFS
Q601
2SC4403 C626 0.1
EP621
IC620
C602 C620 C622 uPC1678G R623 MMZ1608Y102B
L425 39p 39p 0.0047 10
1 8 5V 1LOB
10uH IN VCC
PBMT 2 7
R621 GND GND
10 3 6 C650
GND GND 0.0047
4 5 Q651
GND OUT DTA114EE
R661
10k
W481
R688 L655
4.7uH
82k
Q681
2SA1576 R663
10k
C611
0.0047 R651 D661
2.7k
L682 L651 L652 L653 C658 C660 MA862 C661 R653
HF50ACC322513-B 56nH 82nH 82nH 56P 56P 0.0047 18
1 4
L603 31.2nS
47nH 2 3
C652 C654
C680 3p 2p R652
270
33
C605
7p Q661
D601 C655 D651 R662 DTC114EE
MA77 10p MA77 100
ULPB
10k PST4
C607
1k PDAT 12p
1k PCK
1k
PLL UNIT
5V
8V
L701
UNLC 10uH
R701 2k R702 1k
5V
6 5 4 DRES
D2 R703 2k R704 1k
Q2
DAP222 C192 R730
D3 D4 UMD3N 1k
0.1
DAN222 DAN222
IC192 R705 2k R706 1k
4.8Vp-p
TC7S08F
5
1
4 MKR
2 10uS R707 2k R708 1k
1 2 3 34 22
W33 R192 VSS DA8
3 2.2k 35 21
UL DA7
36 20
P1 DA6 R709 2k R710 1k
37 19
TREE DA5
38 18
P2 VSS
39 IC701 17
VDD DA4 R711 2k R712 1k
40 SC-1287 16
VSS DA3
D902 PST5 R729 1k 41 15
1SS226 STRB DA2
PDAT R727 1k 42 14
DATA DA1 R713 2k R714 1k
PCK R728 1k 43 13
CON_CLK DA0
44 12
VDD VSS
5V
R715 2k R716 1k
L901
IC901 330uH
R911
LC7153M
1k R717 2k R718 1k
13 12
OUTA AOA
14 11
PIA AIA R909 1.5k
15 10
VSS PDA1 R719 2k R720 2k
16 9
PIB PDA2 R907 56k C910 1.8V
17 8 1
VDD TEST
18 7
CB CA C708
19 6
OUTB LDA C903 0.0047 L702 330uH L703 390uH C714 270p C716 270p
20 5 100p
AOB LDB R902 1k
21 4 PCK
AIA DI R721 W1 W25 W28 W29
22 3 47k
PDB1 CL R903 1k C710 82p C712 33p
23 2 PST6
PDB2 CE 0.6V
24 1
XOUT XIN
IC902 Q701
TC7W08F
2SC4081
C907
8
270p 1
7 MKR
2
5V
5V
6
3
5 PDAT L801
4 10uH
R901 R801 2k R802 1k
1k
DRES
R803 2k R804 1k
C911 R904
C913 220p R830
0.1 10k 1k
R912 L903 OFF 0V
R805 2k R806 1k
1k 100uH ON 7.6V
OFF 0V L906
100uH
ON 5.6V R807 2k R808 1k
34 22
VSS DA8
35 21
UL DA7
36 20
C920 C923 P1 DA6 R809 2k R810 1k
0.0047 OFF 0V 0.0047 37 19
TREE DA5
ON 7.0V 38 18
OFF 0V P2 VSS
ON 2.9V Q903 39 IC801 17
2SC4117 VDD SC-1287 DA4 R811 2k R812 1k
Q902 40 16
2SK508 C919 VSS DA3
PST7 R829 1k 41 15
2p STRB DA2
OFF 0V PDAT R827 1k 42 14
ON 5.2V DATA DA1 R813 2k R814 1k
PCK R828 1k 43 13
CON_CLK DA0
Q907 44 12
VDD VSS
DTC114EE
R916 L905 R815 2k R816 1k
150 0.68uH
R920
47
8V
R817 2k R818 1k
OFF 0V Q905
L907 C927 ON 6.6V L910 R922 L909 DTC114EE
0.1uH 0.001 0.33uH 100 100uH
R819 2k R820 2k
Q906
C929 DTB123EK
4p Q904
2SC2714
R921 C925 L802 10uH L803 12uH C816 18p R823 1.8k 4.0V
64MHz_REF
47 0.0047
2.5V
C808 R821 W6 C814
0.0047 39k 18p Q802
C810 6p C812 2p 2SC4117
OFF 0V Scope OFF 0V 8V
ON 0.2V ON 4.6V L806
0.6V 2.1V 0.56uH
Q801
2SC4081
OFF 0V
ON 0.66V R825 C818
220 0.0047
8V
1.5V
S2LO S2LO
8V L1 HF50ACC322513-B
8V
5V
R52 15k W10 L2 HF50ACC322513-B
X52
L51
CR-338
R36 R51 1812CS. L55
Q51 10uH DRES
47k 47k 122XKBC 2SC4403
PCK
R54 470
PDAT
CON2
C53 C54 C58
120p
82p 0.0047
UNLC
L82
L31
EXCCL3225U
R55 C86
47 D51 KV1470 LS-509 16
C88 22p R47
PST1 4 1
0.0047 Q1 STR 1k
PST2 5 2
C64 R58 1.7V Q2 D
4.0V 6.3V PST3 6 3
1.18Vp-p 0.0047 27k Q3 CLK
PST4 7 15
R71 Q4 OE
L81 PST5 14 R48
2.9V 47k C83 Q5
22p LS-509 PST6 13 1k
Q6
L52 PST7 12
0.6V 2.3V C81 Q81 Q7
LS-472C 0.0047 2SC4405 11
Q8 W51
Q52
2SC4081
9
Q71 QS
2SC4081 10 IC1
1.0V QS
BU4094BCF
8
2.3V
10 - 6
P701
J701
3LO to MAIN
unit J211
W2
P851
J851
MKR to RF
5V unit J481
P801
J801
to RF
unit J841
S3LO
P901
J901
to RF
unit J831
S2LO
J1
8V
NC
5V
5V
R9 1k PSTB
R2 1k DRES
R3 47 CONO
R4 47 CON1
to MAIN
R5 1k CON2 unit J841
R8 1k PSEL
R1 1k UNLC
14V
14V
NC
GND
GND
P81
J81
2LO to RF unit
J901