Icom IC-F1610 Service Manual page 36

W508
+5V
PSET
+18V
T8V
5
1
R131 R:7.16V
220 C322 T:0V
R:2.76V
C154 R125 R31
47p T:0V
C152
10 L33 680 4.7k
470p
82n 2.11V C43
2.68V
0.001
0.001
7.04V L17
R132 R126 C148 C294
10k C151 6.8k 0.001 0.001 56n
C156 Q19 R27
10p
47p 2SC5110 L18 3.3k
4.23V
3.3
Q18
2SC5110 C42
L51 33p
C149 D18 Q3
8 47n C47
R586
18p MA77 9p 2SC5110
1.98V
6.8k
C338
R587 R28
33p
6.8k R:4.44V 2.2k R25
Q27
C311 C312 T:0V
270
DTA144EU C44
7p 18p
0.001
R:0V
2 T:1.79V R127 C310 R:2.10V
R133 C153
1.80V
C114YU 0.001 470 18p T:0V
470 T8V
R128 C135
R:6.30V C323 R119 R114
C160
10 0.001 22 470p
T:6.23V R:0.96V 4.7k
0.001
T:4.89V
C139
C162 0.001
0.001 C145 C140 C137
L32 R331
470p 0.001 0.001
82n
R129 6.95V 470
8.2k
C161
47p R120
C150 R122 C297
L29 8.2k
10p
18 0.001 3.3
C146 C138
15p
27p
Q20 L31 Q17
D17 C141
2SC5110 47n 2SC5110
MA77 10p
C144
27p R124 R117
R312 R121
C143 270 4.7k 5.6k 1.8k
C147 27p
Q28 R370
3.24V 8.2k 0.001
DTA144EU
Q24
R123 C142
DTC114YU R130 R118
R:0V R:0V
470 270 470 0.001
2.98V T:4.47V T:3.16V
VRX OPS1
R:4.99V
T:0.98V VTX R:0V OPS2
T:2.65V
COM BUS
ACC I/O BUS
DTMF BUS
AF BUS
R594
4.7k
R538
1k
EPTT
DIM
SP
PASP
R273
1k
PWON
VRX
R272
1k
R275
1k
75 VTX
P14/A4
74 PLLT
P15/A5
73 UNLK
P16/A6
72 PCK
P17/A7
VSS 71 PDA
VSS 70 R276
69 1k
PB4/XDB4
68 PSTB
PB5/XDB5
67 DCK
P20/A8
66 DDA
P21/A9
IC20 65
P22/A10 17.21V
HD64F3437F16 64 R277
P23/A11
63 1k DSTB
P24/A12
62 TMUT
P25/A13
61 PA
P26/A14
60 HFSW
P27/A15
59 R570
VCC
58 1k
PB6/XDB6
W507
57 NWC
PB7/XDB7
56 AMUT
P47/PW1
55 MCON
P46/PW0
54 MODS
P45/TMRI1/HIRQ1
53
P44/TMO1/HIRQ1
52
P43/TMCI/HIRQ11
51 BEEP
P42/TMRI0
W504
C525
0.1
R577
1k
ESO 5.10V
ESI
ECK
L5V
ECS1
ECS2
R558
DTC1
R571
1M
1k DTC2
DTC3
C553
X502
20p
R305 R306
R278 PBRC3.58A
100k 100k 100k
W505
C522
0.001
R529
C521 R142 L59
390K Q504
10
33k 1
2SK1069
R555 C554
R528 300k 20p
R218
1M C543
1k C352 10
R143
0.001
C547 C552 C551 10k
R556
0.001 0.001 R519 100k 0.001
1k
C550
0.001
VCC
+8V
DISC
DMOD
AMOD
PAAF
1/2VDD
7.00V 8.02V
Q55 L30
2SC4081 0.56
IC11
R371
SC-1188
R26 R366 4.7k
220 100
C339 7.71V
C45 EP3 EP3
1
0.001
L508 R:0V
56n T:9.09V
MT8V
C561 C401 C308
C370
0.22
39p 0.001 C411 470p
22
R108
L26 C136 C410
4.7
470p
0.56 22
C399 C122 C400 C118 C119
C420
R:0V
470p 0.001 47p 0.001 22 D44
0.22
T:1.36V D16
HSU88
DA221
R113 R109 L25
R340
68n
22 2.2k C130 150
R103
0.001 4.7k
R110 C121 C376 C377 C379
R115 C378
560
3.9k 0.001 470p 0.001 47p 470p
L27
C129 L24
L23
82n R:0V R:12.42V
C131 33p 47n 47n
T:8.22V
T:0.43V
0.001
C132
22p
C128
R:0V
Q16 Q15 C380 C381 C382 C383
12p
T:8.51V
2SC5110 2SC4703 0.001 47p 470p 0.001
R116
150
C127 C126
R:0V
T:1.86V R386 27p 12p
C134
22
0.001
R:13.13V
R:0V C123 C124 C125 C384 T:12.33V
R:0V R111 C133
R:0V
22 0.001 T:9.51V 47p 22 47p 47p
T:2.24V T:1.49V VCC
R559 R545
100k 100k
0.63V
C385 C386 C387 C388
R546 470p 0.001 47p 470p
R560
1k 1k
C549 C54
0.01 0.01
C389 C390 C391 C392
D508
D510
0.001 470p 47p 470p
DA204U DA204U C393
47p
BOOT
L5V IC17
AN78L05M
CPU5V
5.08V L53
C264
SLF7032-101MR45-2
CPU5V 0.1
O I
R553 100k R584 100k G
C206
C532 47p C266
220
0.1
R554 C534
C544
100k J501
0.1 47p C267
52365-1091 10
12.59V
+5 TXD Q43 Q42
1 2
XRXD RXD RTS 2SC4081 2SB1123
3 4
XCTS CTS RES L504
5 6
FVPX GND R585 3.3
7 8 5.10V
VCC GND 100k
9 10 D30
+5V
4.57V
1SS355
C530
C528 R259
R:8.78V
47p 47p C252
C529 4.7k C253
0.001 T:0.10V
47p 10
C533
C208
47p Q509
C531
DTC144EU 1
47p
FVPP 4.99V
IC506
Q513 S-81250PG
R542
DTA144EU
BOOT C537 C536
10k
0.1
0.1
D506 O I
DAN202U R540
Q511 G
5.9k
DTA144EU
MD1 R213
R549
4.7k
47k
C535
R550
C538 R:0V
0.1
47k T:8.79V
R547 R548 Q512 0.1
R541
1k 47k 2SC4081 C211
Q44 Q508
0V
2SK1829 8.25k 1
2SK1069 20.86V 10.97V 2.29V +18V
D31 1SS355
L45
R260
D32
4.7
IC18 C257 100
R263 DA204U
10k TC7W04FU 1
3.71V
16.39V
R211
1 8
7.67V
4.7k
C259 2 7
0.68 3 6
C258
4 5
1
C254
C263
R261
C255 10
1 D33 C210
470k R262 47k
1
C262 MA8160 1
1 C260 C256
100p 0.1
R267
C261 0.001
100k
Q47
DIM DTC144EU
HORN
Q45
IC501
DTC144EU
LC7366NM
1 TONE 20 R526
VDD
2 CD 19 100k
XMIT
3 NC 18
NC
4 R1 17 DTR1
C1
R527
5 R2 16 DTR2
C2 R525
100k
6 15 DTR3
C3 R3 C518 100
IC504
7 R4 14 DTR4 R524
VSS 2.44V 10
TC4W53FU
8 NC 13 100k Q506
NC 5.05V
9 MUTE 12 1 8 2SK1069
OSC1
10 C4 11 DTC4 2 7
OSC0 C519 C421
5.10V
3 6
10 10
4 5
C368
15
R552 0.59V
C542 C520
1k
0.1 0.1
R402 R397
1k 100k
L5V
DISC
DMOD
AMOD
PAAF
1/2VDD
OPT AF BUS
AF BUS
+5V
PSET
+18V C371
T8V 0.001
+8V
SP
SPE
PAMIC
AFO
Q11
R98 100
2SJ377
R:13.10V
T:12.27V
BEEP
R102
C398
C112 4.7k
0.001
1 C107
C396 C397
IC10a
47p 470p 1.5
NJM2904
R:0.23V
8
PAAF
R101 T:2.83V
3
1.2M R96 10k
1
R363
2
PASP
R97 10k
C106
10k
6 0.001 4 R:0V
7 T:1.86V
R99 C409
5 R329
4.7k
47p 1k
IC10b
R361
NJM2904
4.7k a
R100 R362
10k 1/2VDD
R:2.89V 10k
T:2.84V
D45
C108
1SS355 PDET
0.001
13.2V
C116 R8
470p HV
Q12 R333
10k
2SJ377 D15
DSA3A1
R107 C117 C115
C394 470
0.01 470
470p
PWON
D509
DAN202U
C395
Q14
0.001
DTC144EU
IC16
TA7808F
0.85V
+8V
I O
G
C203
0.1
C204
C205
0.1 1
R:8.18V
Q36
T:0V
2SD1664
R8V
D27
R209 R208
4.7k DA204U
4.7k C207
10
VRX
Q37
R563
2SC4116 R564 R567
47k
47k 4.7k
R:0.48V
T:0.63V
NOISE
Q40
2SD1664
T8V T8V
D29
R212 VRX
4.7k DA204U
C406 C407
470p 470p
VTX
Q41
2SC4116 R565
R568
47k 4.7k
R:0.66V
T:0.49V
R566
R:0V
47k
Q38
C402 T:7.96V C405
2SD1664 470p 47p
R210
4.7k
D28 C209 C403 C404
R:0V DA204U 4.7 470p 0.001
T:8.61V
TMUT
R406
Q39 Q514 33k
DTC114YU DTA144EU
Q2
3SK166
R403
4.7
R:5.09V
T:0V C39
0.001
R21
56
C337
VCC 47p
DIM
R398 100k
HORN R:0.73V
T:0V
GND
5.04V D51 PAAF
C40
1SS355
GND
8p
DISC b
GND
R373 10k C358 0.1
IN
C359 GND L16
C360
0.001 PTT 0.15
1
R372
1k
C361
0.001
C357
0.001
TUNE
PAOUT
T8V
VCC PDET
+8V HV
MEASUREMENT CONDITIONS
OSCILLOSCOPE:20MHz
VOLTMETER :1 /V
VCC
R85
SQL OPEN 0.89V
47 SQL OPEN 0V
R338 C83
SQL CLOSE 4.60V 4.00V
SQL CLOSE 4.26V
56k 0.1
R595 C93
10k 220
R93 R90
R357
IC8 4.12V
2.7k 100k 470k
D50 7.43V
LA4425A IC7
1.22V 1SS355
6.11V M5282FP
C98
C92 Q7 C90
5 2.2 1 VCC 10
0.1 DTC363EK VCC2 10
1 4.13V 2 9
C94 470
IN+ VCAOUT
4 3 CTL 8 Q6
IN-
2 4 VCAIN 7 DTC114EU
OUT
5 NC 6
R330 R92
GND
3 R86
10k 82k
10k C91
C97
C369 0.0047 C100
0.001
0.001 390p
C316 0.1
C333 R70
C332
C318 2.2
4.39V R80 C84 470k
0.01 2.2
22k 2.2
R339
27k
C330 2.57V
IC9b 1.73V
0.1
TA75W558FU
5
R349
10k 7
C86
2.59V 6 C95 R87
0.1
0.1 10k
R81
10k
C413 C326
R320
470p
0.0047 100k
1.10V
R94 C101 R88
R360
10k 0.01 10k
10k
Q8
DTC114EU
R89
R95 R359
22k C334
100k 10k
2.2
SQL OPEN 0V
2.58V
SQL CLOSE 4.61V
R513
(SP MODE)
56k
R8
L56 1
L50
L60
C343 0.56
1
0.001 W:6.92V
W:2.48V W:6.28V
N:7.04V
N:2.15V N:6.40V R33
R41 1.5k D511
FI4 100
1SS375
SFPC455E
C50
2 1
0.001 X1
W:0V W:0V CR-574
N:2.66V N:2.67V Q4
3 2SC4215
W:2.6V C51 68p 1.73V
D502 D501 IC1
N:2.16V C52
FI3
DAN202U DAN202U 120p MC3372SVM
SFPC455H
1 2 1 MIXER 16
CRYSTAL
R34 4.7k
2 GND 15
CRYSTAL
3 MUTE 14
MIXER
3 4 METER 13
VCC
R543
C58 0.1 5
LIMIT SQUELCH
W503 680 W502
6 FILTER 11
DECOUP
C502
R38 7 FILTER 10
0.1 LIMIT
1.8k 8
R504 QUAD AUDIO
R505 R506
R502 12k
12k 15k R39
W:13.00V
15k C423 0.001
N:0V R503 R501 C57 47k
0.1
12k 10k
C49
X2 R409
W:4.92V R36
Q510 0.01 CDBC455CX16 C59
1.5k
N:0V 1k
DTC144EU 68p
W:4.38V
NWC N:0V
7.2V
C48 R407
47k
C503 2.2
Q502
R40
0.01
DTA144EU 1k R408
47k Q61
W:0.62V
Q501 W:0V C504 W:3.12V 2SC4116
N:0V
N:7.26V 0.01 N:0V
DTC144EU
RSSI
W:0.62V
N:0V
R8V
L54 R:0V
0.56 T:0.76V L5
656LZ-09K
C408
C341
0.001 470p C19
L10 D5
3p
0.56 MI809
C18
C27 15p D6
R:7.96V
6p MI809
T:0V
L11 C327
C26
MC152 0.001
470p
0V R:8.11V R328
T:0V 470
0V D52 1SS352
R13 R:2.59V
C35 100k T:0V
C306 C34 C305 C31 C23 C20
3p 1p 2p 1p 2p 0.001 3p
Q1
3SK166
C37
L12
C30
30p
MC152
27p R15 0V C22 C21
C32 C28
R19 27p
150 2p
100k 30p 0.001
R12
L13 L8
22k
MC152
MC152
L7
R20 C36 C33 D9 C29 R14
D11 D10 D7
6p LA-504
100k 6p 1SV217 1SV217 470p 47k
1SV217 1SV217
R16
R18 R17 R10
R:1.39V
220k 220k
220k 220k T:0V
C565 C328 C325 C331
C329
0.001
0.001 0.001 0.001
0.001
C15
R:8.22V
15p
T:8.84V
R:0V
T:1.55V
4.81V
R61 100
SQL OPEN 4.88V
SQL CLOSE 0V
C70 R52 C67 C69
C72
R62 1.5k 0.047 0.047 0.047
2.2 2.2k
R69 R68 C73
47k 22k 0.1
2.52V C68
2.54V 2.54V
R65 0.047
8 C71
47k
Q515 3 0.047 5
R49
DTA144EU 1 7
1
2 6
C74 R51
0.1 IC3b 4.12k
4
IC3a R63
R569
R53
91k 2.53V
1k TA75W558FU
36k
R77 C314
R67
33k 100
10k R327 Q5
100k 2SC4116
R71
10k
C75 0V
1
R512
R511 R510
3.9k
180k 1k C61 R42
3.10V
2.2 2.49V
100
C508
10 R515
39k C60
5
0.50V
1
1
C509 AFO
1 6 4
R509 0.1
3
10k
2 5
R508
4 2
10k
R313
3
270k
R45
IC2
C506
Q503 82k
0.1 TA75S558F R44
XP4601
C510 22k
C507
2.73V C315
0.01
0.022 2.55V
3.38V 120p
R514
2.54V
1k
1/2 VDD
R365
R:7.25V
L15 C295 10
T:0V R30 L55
R385
4.7 0.001
180 1 820
C54 C53
L19
C296
47p 0.001 C319 L52
1.2
0.001 10p
0.56
R:0.73V
T:0V
C55 R32
0.001 6.8k FI1A FI1B
FL-264 FL-264
C46 R29
0.001
560
R588
820
12 R37
470k
C41
15p
0.69V
9
C63
C62
150p 150p
W:4.24V C64 W:7.17V
N:4.32V 0.001 N:0V
Q62
R47 2.7k
C65 DTC144EU
R35 0.001
82k
R46 R410
R48
2.2k
TN20-3K202L 820
W:3.0V
C56 N:3.3V
C66
0.001
0.001 NWC
Q517
C562
0.97V(+15dB INPUT:3.40V) DTC144EU
0.1
NOISE
ANTENNA
L4
656LZ-09K
R1
C17
47
22p
L3
W6
LA-503
L2 L1
LA-504
LA-504
FOR
C9 C416
C11
0.5p
47p 6p
REV
C3 C2
C415
R415
C10 C8 C4 33p 15p
15p 100k
18p 33p C7 470p
D4 C324 R4
470p
27p
UM9401F 47
R5
R2
1 1
L507 D3 D1
1SS375
LA-515 1SS375
R7
220
L6 R315 R314
100
LW-25 100
R8
220
C14 C300 C5
4.7 C13 0.001 0.001
C6
470p
0.001
C16
HC373
18p 1p
R:4.23V
T:4.35V
J4
VCC
DIM
HORN
GND
PAAF
GND
DISC
GND
IN
GND
PTT
COMPLETE VIEW
W4
OPC-453
D15
DSA3A1