Pll Unit; Logic Unit - Icom IC-78 Service Manualvice Man

12-2 PLL and LOGIC units
7.9V 3.2V
8V
L8
10µH R191 180
5V
3.9V
R20 Q34 L26 C194
L25 R57
470 10µH 2SC4081 R LW-25 470p
1k
2.0V 1.3V
R21
C68 R192 C5 C195
10k C26
0.001 1k 33 470p
Q11 100p C1
100
2SC2714
C165
1.0V
0.5V TZBX4N100BA110T
C62 C63 L19
R19 10p
220 0.001 0.0047 E544GN-110248
C126 R116
C162
0.0047 100 12p Q18
2SK508
C67
330p
L27
R24 D4 2.4V
2k LW-25 KV1470 C64 R49
R25
2k C27 0.0047 220
0.0047
R2
100
R26
1k R27 C28
2k 0.0047
C2
C168 10
R28
R29 0.047 R75
1k
2k 3.9k
R30
1k R31 12 R3
44
2k VSS VDD 2.2k D15
13 43 CK 1SS226
DA0 CON_CLK
14 42 DT
R32 DA1 DATA R6
15 41 PST
1k R33 DA2 STRB 10k
16 40
2k DA3 VSS 1.9V
17 IC2 39
DA4 VDD
18 38 W9
VSS SC-1287 P2
19
R34 DA5 TREE 37 C29
R35 20 0.0047
1k DA6 P1 36 CP30
2k
21 35
DA7 UL
22 34 C228
DA8 VSS CP1 2.2 CP3
R36
1k R37
2k
C30
0.0047
R38
1k R39
2k
C31 C32
R40
1k 0.0047 0.0047
R41
2k
R42
1k R43 L12
100µH
2k
0V
R180
4.6V
C33 C34 2.2k
Q35
100 0.0047 R182 D16
2SC4081R
33k MA2S111
C222 R181 R183
0.0047 C223
0.6V 15k 4.7k
0.1
BFO L47
WS2 CP201 10µH
8V
R52 C55 L15 L14
P5 J2 680 0.0047 15µH 12µH
MAIN BFO
1 1
unit
J2001 2 2
BFOE C203
0.0047
R53 R51
C53 C51
3.9k 3.9k C54 C52 C50
22p 0.5p 27p 2p 22p
CP202
W10
13V
L2 C12
10µH 0.0047
R12
15k 7.9V
X1
L3 CR-337 1.7V Q9
LW-25 2SC2714
1.1V
C13
0.0047
C15 L4
33p C14 LS-472C
82p
C21
C16 R14
100 R13
TZBX4R200BA110T00 20p 4.7k
470
C25
120p
L5
10µH
R15 C17
C23 0.0047
100 R16
0.5p 22k
7.2V R121 C132
2nd Lo
1.9V 220 100p
WS1B L7 L6
LS-471A LS-471A
P2 P1 J1 Q10 C18 R17
W101 W102 L49 0.12µH L50 0.12µH C20 2SC2714 100p 220
MAIN 2LO 2LO
1 1 1 15p
unit 2LOE C24
J401 2 2 2 1.4V
2LOE 15p
EP101 R23
10k
EP102 C22 C19 R18
C227 0.0047
56p 0.0047 220
8V
W7 L30
10µH
C106 C109 L32
0.0047
0.0047 0.82µH
7.8V
R85 C108
R169
8.2k 0.0047 33
Q28
R156 2SC2714
R171 R172
180 W1
180 180
C111
R84 1.3V
0.001
3.3k 1.9V
R87
C104 L41
100
0.0047 10µH
C65 R74 L38
1p 8.2k 1µH
7.9V
2.2V
C129
0.0047
R7
220 R88 R158
Q26 100 100 R90 L42
1.4V 470
0.82µH
2SC2714
C118 6.8V
C160 7.8V
0.0047
C103 R78 0.0047
0.0047 100 L48 C130
1.8V 7.0V R120
L39 R159 0.68µH 0.001 47k
Q29 R89 R117
0.82µH 10k
C119 2SC2714 470 C159 47k
0.001 0.001 0.5V
C225 C226 R119
Q32 Q30 3p 3p 47k
R10 2SC2714 2SC2714
CP2 CP20 2.5V
22k 2.9V
R8 R160
C127 0.5V
220 10k R161 0.001
R9 C120 CK
LFO 220 R118 C128
22k 0.0047 2.2V DT
47 0.0047
PST
RESET
DT
CK
4.6V
L1
CON0
10µH
CON1
CON2
C3
R132 C6 DST
2k 0.0047 10
8V R155 C143
C148 C192 C139
R133 2k 0.0047 0.0047 0.0047 0.0047
1k
R144
R134
2k
5V 1k
R145 C149
R135 2k
0.0047
1k 1 75
VSS ETCO0
2 74
SYSCLKO ETCO1
3 73
R146 VDD ETCO2 D12
R136 4 72 1SS184
2k VDD VSS
1k 5 71
ETCO3
VSS
6 70
DA0 ETCO4
7 69
R147 DA1 VSS
R137 2k 8 68
1k DA2 ETCO5 C146
9 67
DA3 ETCO6 0.0047
10 66
VSS ETCO7
11 65
R148 DA4 VSS
R138 12 64
2k DA5 VDD W170
1k 13 IC6 63 C147
DA6 Q4MA
14 62 0.0047
SC-1246A Q16MA 0.1V
DA7
15 61
R149 VSS VSS
R139 2k 16 60
VSS FCK
1k 17 59
DA8 RC
18 58
DA9 REF OSC
19 57 R162
R150 DA10 VDD
R140 20 56 820
2k DA11 PDTRI
1k 21 55
VDD VSS
22 54
PD0
TE1
C150 23 53
R151 0.0047 TE2 VDD C174
R141 2k 24 PD1 52 0.047
1k TE3
25 51
VDD PD2
C145
R152
R142 0.0047
2k
1k
C151
0.0047
R153
R143 2k
1k
C152 C153
R154 0.0047 0.0047
C172
2k
27p
C144 C155
C191 0.0047 0.0047
C188
2.3V 0.1 0.0047
R166
IC7 1M
L46 L45 L44 C158 TC4SU69F
18µH 22µH 27µH 0.001
1 5
2.4V
2
C156 C136 C135 L9 1µH
3 4
22p 12p 4p
R4
470 L10 1µH
R164
C157 C138 C137 C134 1k R165
39p 56p 68p 56p 1M
C161 R5 C167
0.0047
0.047 100
LFO
Q33
DTC114EU
13V
8V
C4 C66 C166
10 0.0047
1
4.8V IC1 TA7805F 10.3V
R102
22
5V 13V
O I
G
C10 C9 C8 C7
10 0.1
0.1 10
1st Lo
W1A
C112 C114 L36 L37
J4 P3 P4
56p 39p 0.1µH 82nH W103 W104
1 1LO 1 MAIN
1 unit
2 2 2 J201
1LOE
EP103
C116
L34 L35 EP104
8p
0.1µH 0.15µH
C115 C117
24p 33p
R44
S1 P1 J1 10
J1
4 E
1 1 +5V 1
3 UP SEN1
2 DN 2 2 2
3 3 SEN2 3
1 E 4 4 GND 4
SENSOR BOARD 5 4
D46
NNCD6.2G
1 2 3
R2 10k-B
EP40 EP2
AF J1
J3
R4
AFGL PB0
SQL/RF 6.8k GND 1 AFGL 1
2 GND 2
RFGL PB1
GND 3 RFGL 3
4 GND 4
RITL PB2
5 RITL 5
R1 10k-B GND
SFTL 6 GND 6 PB3
RIT 7 SFTL 7
GND
8 GND 8
5VL 9 5VL 9
GND
10 GND 10
SHIFT

PLL UNIT

C46 C43
0.0047 0.0047
VR BOARD
C45 C44
0.0047 0.0047
J1 J2 J4 L41
L42
100µH
MIC MIC 10 100µH
7 1 MICE 1
2 MICE 9
6 8 2 GND C47 L43
3 GND 8
AFO 0.0047 HF50ACC322513-B
5 3 SEND 4 AFO 7 L44 100µH P43
4 5 SEND 6
SQLS EP45 MMZ1608Y102BT
6 SQLS 5
UD
7 UD 4
8V 8 8V 3 EP46 MMZ1608Y102BT
GND
9 GND 2 L47
GND HF50ACC322513-B
10 GND 1
MIC BOARD
J2 J5
PHONES L1
GND
J1 HF50ACC322513-B 10 GND 1
1 AFE
2 9 AFE 2
R1 100 AFE
4 AFE 8 AFE 3
7 AFE 4
3 R2 100 AFO
6 AFO 5 L49
7 AFO
5 AFO 6 HF50ACC322513-B
8 AFO
4 AFO 7
R3 ESPO 3 ESPO 8
ESPO
1k 2 ESPO 9 L48
ESPO
C1 C3 1 ESPO 10 HF50ACC322513-B
0.0047 0.0047
C2 PHONE BOARD
0.0047
R127 POWER
2.2k
Q12
MODE FIL TS LOCK 1
2SC4081
D45
D44
DAN202k
1SS355
P67
R103 CP307 R43
47k
C141 CON0 47k
0.0047
CP308 *SET-ON 4
R104 D48 *
CON1 47k D48 1SS355 P60
OTH2, OTH3
5.4V R105 CP309
D32
CON2 47k D49 * P61
1SS355
R106 CP310 D49 1SS355
OTH, OTH3
DT 47k
R107 CP311
CK 47k
D51 1SS355 7
R108 CP312 OTH2, OTH3 D51 * P63
DST 47k
CP313
R22 D52 P64
PST 47k D34
1SS355
CP314
P65
R44 D53
CP315
47k 1SS355
RESET P66
CP316 D54
1SS355
P67
D36
D55 1SS355
1SS355
R91 J3 J9
R212
1k 220
RESET 16 P27
1 SRST
R177
2 FSKK 15 220
CON0 R93 1k P24
3 CON0 14
CON1 R94 1k R176 220 P25 NB COMP
4 CON1 13
CON2 R175 220 P26
R95 1k 5 CON2 12 D38
DT R96 1k R174 220
6 PDAT 11 P32 1SS355
CK R97 1k 10 R173 220 P30
7 PCK
DST R98 1k R172 220 P33
8 DSTB 9
PST R99 1k R171 220 P34
9 PSTB 8
P23
10 DNB 7 P.AMP
11 13V 6 R193
220
12.5V 12 13V 5
13 13V 4 D40
8V 1SS355
14 8V
3
NC 2
15
7.9V GND
16 GND 1
W92
W101 CH
C170
0.0047
CP304 CP306
D42
1SS355
C224
0.1 CP305
CP301 CP303
FSKK
13V
DNB
L40 100µH
C42
0.0047
P16
R49
DS1
100k
A0087
LCD
P21
R54
100k
R55 R56
47k
W41 47k P20
P22
W42
4.8V S39 81 50
Y50 NC
S38 82 49
83 Y49 NC
S37 NC 48
S36 84 Y48 47
Y47 NC
85 46
86 Y46 VCC 45
Y45 NC
87 44 P94
Y44 M C20
8V 88 43 0.1
89 Y43 NC 42
Y42 DO
90 41 P95
R59 Y41 IC7 DI
10k 91 40 P96
92 Y40 HD66100F CL2 39
Y39 SHL
93 38
Y38 NC
94 37 P97
95 Y37 CL1 36
Y36 GND
S1 96 35 V2
Y35 V4
S2 97 V3 34 V3
S3 98 Y34 33
Y33 V2
S4 99 32 V1 R14 R15
Y32 V1 100k 100k
MIC S5 100 VEE 31
MICE Y31
PHO
5V
D47 R62
1SS355 2.2k
R63
2.2k
SPE
PHOE R2
22k
4.9V
P16
PHO
P40
3.6
V
R30 C21
1.8 47k 0.1
V
0 C22
0.1
0.1µS
R7 22k 75 P97
1 PC3/AN11 P97/SEG40/CL1 74
2 P96/SEG39/CL2 P96
AVSS 73 P95
3 P95/SEG38/D0
X1 CR-567 TEST 72 P94
9.8304 MHz 4 X2 P94/SEG37/M 71
5 P93/SEG36 P93
X1 70 P92
6 P92/SEG35
C1 7 VSS 69
R1 OSC1 P91/SEG34 68 P90
2 3 15p 1M 8 P90/SEG33
67 P87
R35 R34 R31 R33 R32 9 P87/SEG32
10 RES IC1 66 P86
47k 47k 47k 47k 47k MD0 P86/SEG31 65 P85
P20 11 P85/SEG30
D31 P20/IRQ4/ADTRG HD6433837SD17H 64 P84
D30 C2 P21 12 P84/SEG29
DAN202K DAN202K 15p P22 13 P21/UD P83/SEG28 63
P60 P22 62
14 P82/SEG27
P23 61
P24 15 P81/SEG26
P25 16 P24 P80/SEG25 60
P25 59
R36 P26 17 P77/SEG24
5 6 47k P26 58 P76
P27 18 P27 P76/SEG23
P30 19 P75/SEG22 57 P75
P30/SCK1 56 P74
20 P74/SEG21
P31/SI1 55 P73
D33 P32 21 P32/SO1 P73/SEG20 54
P33 22 P72/SEG19 P72
DAN202K P61 P33/SCK2 53 P71
P34 23 P71/SEG18
P34/SI2 52 P70
P35 24 P35/SO2 P70/SEG17 51
P36 25 P67/SEG16 P67
P36/STRB
P23
R37
8 9 47k
Q3
R8
DTA114EU
10k
D35
DAN202K
P62
C6 0.1
R38
0 ENT 47k
D37
DAN202K
P63
R39
47k V3
V2
TUNER

LOGIC UNIT

V1
D39 COM1
DAN202K COM4
P64 COM3
COM2
W1 R11 R12 R13 R10
R40
ATT SET 47k 100k 100k 100k 100k
R5 R4 R3
10k 10k 10k
D41 5V
DAN202K
P65 8V
When turn power ON.
C3
IC3 0.01 IC5
R41 13.8V 4.8V 12.5V
DN UP 47k R22 S-80942ANMP TA78L05F
1k
R20 1 5 0V
47k OUT CD
W102 2 O I
D43 VDD 4 G
DAN202k 3 NC 5.0V
P66 VSS
C14 C13 C12
R21 C7 C8 C9 0.1 10 10
39k 1 0.1 0V
0.01
R42 100 mS
47k
Hi : 6.0V Q70 Hi : 8.1V
Lo : 5.6V Lo : 11.0V
2SD1619 T R75
OFF: 4.4V OFF: 13.0V 39
DS70 DS73 DS76 DS79 DS82 DS85 DS88
TLYU1002 TLYU1002 TLYU1002 TLYU1002 TLYU1002 TLYU1002 TLYU1002
R70 R71 R72 R73
270 560 820 Q71 3.9k Q72
DS71 DS74 DS77 DS80 DS83 DS86 DS89
TLYU1002 TLYU1002 TLYU1002 TLYU1002 TLYU1002 TLYU1002 TLYU1002 Hi : 6.6V
DTC114 EU DTC114 EU
Lo : 6.3V
OFF: 4.9V
DS72 DS75 DS78 DS81 DS84 DS87 DS90 R74
TLYU1002 TLYU1002 TLYU1002 TLYU1002 TLYU1002 TLYU1002 TLYU1002 W70 1k
J6
1
L101 HF50ACC322513-B 2
3
4
L102 HF50ACC322513-B
5
L103 HF50ACC322513-B
6
L104
HF50ACC322513-B 7
8
9
MICE 10
MIC
11
P43
12
L2 SQLS
13
10µH
14
15
PHOE 16
C19
PHO 17
10
18
19
20
21
22
23
24
R197
25
R16 R17 2.2k
100k 100k CIVE 26
D123 D122 CIV
27
P70 DA221 DA221 R166 220
28
R195 R196 R198 R201 P71
47k 47k 29
2.2k 1k P76 R169 220
30
D1
DAN202K
J7
Q1 Q2 R199
820 R190
DTC114EU 2SC4081 1k 1
H5V P93 R126 220
2
P92 1k R127 220
R191 3
220
PC2 R129
4
PC3 R128 220
5
PC0 R133 220
6
PC1 R130 220
7
PB7 R131 1k
8
PB6 R132 1k
9
PB4 R186 220
10
P12 R134 220
L1 11
C5 10µH P10
12
10 P13 EP152
13
P14 R153 220
14
P84 R150 220
15
P11 R151 220
16
P86 R154 220
17
P90 EP157
18
R158
P85 220 19
P87 EP155 20
P27 R156 220
21
P40 EP159
22
P37 R160 220
23
P36 R161 220
24
P35 R162 220
25
P72 R163 220
26
220
P73 R164 27
R26 IC2 28
47k
X25320SI 29
30
1 8
2 CS VCC 7
SO HOLD
3 6
WP SCK
4 SI 5
VSS
R24 R25
R9 R27 C4
10k 47k 47k 47k
0.1
Q105
DTC114EU D121 D120 D124
DA221 DA221 DA221
SQLS R165
10k
Q106
Q103 R108
DTA114EU 330
P74
DTC114 EU
R188
8V 4.7k
Q104
DTC114EU
P75
C102 R105 33k
0.001
R104
D102
L100 6.8k
100µH 1SS355
CIV
4 5 6
R100 R101
100k 100k Q102
HV P42 XP4601
IC103C
H5V
TC7W04F 3 2 1
5V
P41
5 3 CIVE
8V
R106
P17
47k
IC6 12.6V
5.0V IC103B
TA7805F R19
22 TC7W04F
R103
C101 R102 18k
O I 0.1 6 2
G 100k
C11 R18 R107 8
0.1 47 C16 C15
C18 C17 22k 7
0.1 10 10 0.1 1
4 IC103A
C103
TC7W04F 0.1V
0.47
FSKK
13V
DNB
12 - 2
STRT
5V
SNDS
8V
8V
HV
14V
14V
FSKK
MICE
MIC
SEND
to
SQLS
MAIN
SEND unit
SEND J4401
SEND
SPS
PHOE
PHOE
PHO
PHO
GND
GND
GND
GND
CIVE
CIV
ALMS
NC
KEY
GND
DOTK
DASK
VOXL
AVXL
SML
ALML
REFL
FORL
PATL
BEEP
DNB to
RXS MAIN
unit
TXS
J4201
SBSY
KDS
DSPS
DSST
SSTB
DINT
DRES
ASTB
MSTB
FSTB
BSTB
MCK
MDAT
POWS
GND
GND