![background image](http://html.mh-extra.com/html/icom/ic-f80ds/ic-f80ds_service-manual_612667039.webp)
VOLTAGE LINE
Explanatory notes
TX LINE
RX LINE
COMMON LINE
22p[L]/10p[H]
C552
0.001
C547
7p
C556
6p
C551
2SC3357
Q201
DA221
D500
11n[H]
15n[L]
L1
2p[H]
7p[L]
C1
C650 0.001
C651 0.001
C657 0.001
C669 470p
C663 470p
C662 470p
C654 0.001
C653 0.001
C648 0.001
C647 0.001
C671 0.001
C668 470p
MCON
C659 0.001
0.001
C660
0.1
C403
0.001
C560
22p[L]/10p[H]
C555
0.001
C543
0.001
C232
0.001
C246
C254 8p[L]/9p
[H]
C237 15p
C229 6.8
C231 0.001
R215 2.2k
12k
R212
220p
C210
0.1
C209
0.001
C206
MA2S111
D205
4p[L]/6p[H]
C205
C208 0.001
DTA114EE
Q204
TMUT
R204 8.2k
VCC
VCC
VCC
C256 470p
C213 0.001
L203 12n
C216 1.5p[L]/2p[H]
10
R205
6.8n[L]/5.6n
[H]
L205
6.8n[L]/5.6n[H]
L204
8p[L]/9p
[H]
C220
0.001
C214
27[L]/18[H]
R207
C211
0.001
12p[L]/8p
[H]
C219
180[L]/330
[H]
R208
180[L]/330
[H]
R206
4p
C203
8.2n[L]/10n[H]
L200
390
R216
R213 100
3
2
1
C223 0.001
C227 0.01
C234 0.001
67n
L206
R210 15k
22p[L]/39p[H]
C222
6.8n[L]/5.6n
[H]
L207
10p[L]/12p[H]
C224
1.5n
L208
22p[L]/10p
[H]
C226
27p[L]/39p
[H]
C230
2.7k
R227
RB706F-40
D204
0.001
C253
1k
R226
R221 10k
10k
R224
0.001
C249
0.001
C243
1k
R223
L519 39n
0.001
C533
ERJ2GE-JPW
R549
1.5p
C530
2p
C538
18p[L]/15p
[H]
C536
100k
R530
HVC350B
D504
HVC350B
D505
220k
R529
R527 10k
C532 0.001
C529 0.001
220k
R525
HVC350B
D502
15p[L]/9p
[H]
C527
34n
L510
10p
C520
4p[L]/5p
[H]
C523
3p
C522
MCR10-JPW
R518
82
R629
0.01
C646
5p
C535
R511 100
R508 100
C661 3p[L]/6p
[H]
V5V
DASW
RESB
TEMP
R5V
C402 47p
C405 10p
C404 10p
VCC
CPU5
CPU5
5V
BATT
T5V
VCC
-BATT
+BATT
BATT
J3
DRXD
DTXD
J2
R359 47k
R358 47k
R357 47k
J1
(CHASSIS)
unit J1
to FRONT
MIC
SP+
VCC
OPTV
AFVI
VOXOUT
PWRSW
KR
EM
PTTI
PTTSW
SPCON
AFON
FSDA
FSCL
RES
XTXD
XRXD
RESB
R8
R4
R2
R1
+5V
EXPTT
CCK
DCSI
CSO
IRQD
CCS
DFIL
DAFO
DRMT
BUSY
DAFON
RSSID
DMMT
DMI
VCC
DMO
5V
DPTT
PTTI
CCK
ANASW
ACSI
DASW
CSO
PMFM
IRQA
GND
CCS
OPT3
REM
OPT2
AFOUT
OPT1
DISC2
SIG
ARMT
BEPO
BUSY
AFONO
AMMT
PTTO
PTTI
CPU5
VCC
MCOT
MIC
ANT
PTTO
CPU5
T5V
VCC
T5V
TC75S51F
IC200
2
5
1
3
4
+
-
T5V
ANT
CODE8
0.001
C388
HD64F2268TF
IC307
R410 1k
4
3
2
1
5
6
7
8
CPU5
CPU5
S5V
5V
R5V
CPU5
4
3
2
1
10
R399
S5V
5V
R5V
CPU5
T5V
5V
S5V
5V
R5V
CPU5
5V
R5V
T5V
5V
10
C460
10
C444
L301 4.7
µ
5V
CPU5
BATT
VCC
CPU5
5V
CPU5
5V
VCC
47
R512
R5V
0.001
C511
R5V
T5V
R5V
0.001
C540
R532 47
R620 10
10
R623
MAIN UNIT
GND
MIC
SP+
VCC
VCC
OPTV
AFVI
VOXOUT
PWRSW
KR
EM
PTTI
PTTSW
MCON
SPCON
AFON
FSDA
FSCL
GND
RESET
XTXD
XRXD
RESB
R8
R4
R2
R1
+5V
+5V
EXPTT
CCK
DCSI
CSO
RTSI
IRQD
GND
CCS
DFIL
MD2
DAFO
C_RES
CTSI
DRMT
TEMP
BUSY
DAFON
RSSID
DMMT
DMI
VCC
DMO
5V
DPTT
GND
PTTI
CCK
OPV1
ACSI
OPV2
CSO
OPV3
IRQA
GND
CCS
OPT3
REM
OPT2
AFOUT
OPT1
DISC2
SIG
ARMT
MOWN
BEPO
BUSY
AFONO
AUX
AMMT
MCIN
VCC
MCOT
CPU5
PTTO
GND
PTTI
TMUT
RSSI
SCK
IRQD
IRQA
CIRQ
ARMT
DRMT
RMUT
DMMT
AMMT
MMUT
SIDE3
PTTSW
SIDE2
SIDE1
DCSI
ACSI
CSI
R5C
T5C
S5C
PWRSW
PWR0
BATV
DSDA
TLVA
MMUT
OPT1
OPT2
OPT3
MDIO
MDIR
MTDT
SIDE3
CENC0
CENC1
CENC2
SIDE2
MRDF
KR
MTCK
XRXD
FSDA
FSCL
XTXD
MSCK
PMFM
ESDA
ESCL
ESCL
ESDA
PMFM
MSCK
MDIR
R8
R4
R2
R1
DTPD
RESB
SSO
SCK
PLST
DASW
T5C
TMUT
NWC
DDSD
DDAC
R8
R4
R2
R1
DTPD
RESB
SSO
SCK
PLST
DASW
T5C
TMUT
UAFON
NWC
DDSD
DDAC
CSO
CSI
CCK
CCS
DAFON
UAFON
AFONO
AFON
ESCL
ESDA
R5C
S5C
PTTO
EM
BUSY
RMUT
NOIS
PWRSW
DDST
CIRQ
PWRO
SENC
BEEP
SDEC
CDEC
UNLK
BATV
LVIN
RSSI
ERJ2GE-JPW
R465
RESB
MCON
SPCON
DUSE
DAST
DSDA
RES
EXPTT
SIDE1
VOXOUT
AFVI
ANASW
OPTV
TEMP
N
M
L
K
J
I
H
G
F
D
C
E
B
A
MA8051
D306
DTC144EE
Q302
C380 0.1
0.1
C394
BU4053BCFV
IC305
DAP202U
D313
DAP202U
D304
DAP202U
D303
DAP202U
D302
R415 100k
100k
R414
100k
R413
ANT BOARD
0.001
C1
BOARD
FUSE
J1
BLM21P300S
L1
C670 470p
C658 0.001
C649 0.001
C665 470p
Battery
from
C369 0.001
C377 47p
C371 0.001
C370 47p
C468 470p
CP5
DAP202U
D301
R350 100k
ERJ2GE-JPW
R503
CP4
100
R441
CP6
CP7
C360 0.001
C358 47p
C352 47p
C359 0.001
C367 0.001
0.001
C350
100k
R340
ERJ2GE-JPW
R501
R349 1M
R348 1M
R347 1M
R346 330k
R345 330k
R344 330k
only
[F80DS/DT]
unit J1
to DSP
unit
to Optional
VCC
CP21
100p
C455
SW-167
S1
100p
C458
SW-167
S4
100p
C457
SKHLLFA010
S3
SW-167
S2
100p
C456
M62334FP
IC310
10k
R541
0.001
C553
0.001
C572
10
C459
470
R433
0.1
C446
10k
R432
100k
R540
100k
R543
5
6
7
8
4
3
2
1
GND
SDA
SCL
VCC
AO4
AO3
AO2
AO1
2SK1829
Q503
RB706F-40
D202
MA2S077
D510
MA2S728
D509
22n
L520
15p[L]/12p
[H]
C559
C564 5p
39n
L518
HVC350B
D507
34n
L517
5p
C558
5p
C557
1p
C554
HVC350B
D506
34n
L516
C549 10p
68n
L514
180k
R535
3SK293
Q502
14n[L]/12n
[H]
L513
0.001
C545
47p
C542
100
R533
C541 0.1
220p
C537
10
R537
220k
R534
47p
C550
0.001
C548
0.001
C544
MA2S111
D508
470k
R542
100k
R220
220k
R545
R539 1.8k
0.1
C546
10k
R536
C233 1
R217 47
47p
C244
0.0047
C241
R219 120k
R218 470k
C238 0.22
D201 MA2S111
J1
10p[L]/22p
[H]
C517
0.01
C516
150
R513
617DB-1714
L506
1SV307
D203
0.001
C562
17.5n
L523
21n
L522
1.5p
C568
1p[L]/1.5p[H]
C566
7p[L]/5p
[H]
C565
8p
[H]
12p[L]
C567
7p[L]/4p
[H]
C569
R546 82k
0.001
C247
4p
C248
4p
C245
21n
L212
0.82
µ
L213
180
R225
0.001
C251
47p
C250
0.001
C242
2.7k
R222
9p[L]/3.5p
[H]
C240
C239 18p
4.1n
L210
0.01
C515
4
5
6
3
2
1
SPM5001
IC500
0.001
C525
22n
L512
22n
L509
8p
C528
5p
C526
R514 470
R516 470
0.001
C513
10
R515
617DB-1714
L504
S2
S1
G2
D2
D1
G1
617DB-1714
L503
0.01
C508
0.001
C510
0.001
C518
470
R520
10k
R521
MA2S077
D501
4.7k
R624
12p[L]/9p[H]
C640
2SC4215
Q500
0.01
C202
10
R203
10k
R200
RD07MVS1
Q203
RD01MUS1
Q202
21n
L209
C236 0.01
0.001
C235
68k
R214
2SC5006
Q200
NFM60R20T152
FI200
150
R209
0.1
C225
0.001
C221
39k
R211
0.01
C255
150
R228
4p[L]/3p
[H]
C204
C215 4p[L]/2p
[H]
C207 0.001
L201 15n[L]/12n[H]
10k[L]/47k
[H]
R202
100
R201
C200 0.001
5p[L]/8p[H]
C201
MA2S077
D200
100k
R419
R427 1k
R426 1k
R422 1k
R425 1k
R421 1k
1SS301
D311
1
2
ERBFE3R00U
F1
TPC6103
Q309
3
2
1
4
5
6
R437 100k
R439 270k
100k
R440
C453 0.001
C452 0.001
C451 10
R438 100k
C450 0.01
0.001
C454
DTC144EE
Q310
3
2
1
4
5
6
3
2
1
4
5
6
TK11250CM
IC311
XP6501
Q307
2SB1132
Q308
2.2k
R434
1
C449
1
C448
0.01
C461
0.1
C447
100
R435
4.7
C445
0.001
C443
0.001
C425
0.001
C422
NP
GND
CONT
VOUT
GND
VIN
10k
R436
R430 4.7k
R428 4.7k
R420 4.7k
2SA1577
Q306
C442 0.01
C441 0.001
R431 10k
2SA1577
Q305
C424 0.01
C423 0.001
R429 10k
2SA1577
Q304
C421 0.01
C419 0.001
R424 10k
MA2S111
D309
1SS301
D310
HN58X24128FPI
IC308
VSS
A2
A1
A0
SDA
SCL
WP
VCC
ERJ2GE-JPW
R466
0.1
C420
R416 10k
R417 100k
R423 33k
R418 100k
C440 47p
C439 47p
C438 47p
C437 47p
C436 47p
C435 47p
C434 47p
C433 47p
C432 47p
C431 47p
C430 47p
C429 47p
C428 47p
C427 47p
C426 47p
C418 0.1
CODE4
CODE2
CODE1
C396 0.001
C392 0.001
C389 0.001
C416 47p
C415 47p
R444 100k
R445 100k
R446 100k
R412 1k
R408 1k
CP9
R400 100
C399 0.1
C466 47p
DTA144EE
Q311
D312 MA2S111
470k
R548
R519 100k
EW-460
IC312
G
O
I
9
10
11
12
13
14
15
16
8
7
6
5
4
3
2
1
C
B
A
X0
X1
X
Y
VDD
VSS
VEE
INH
Z0
Z
Z1
Y0
Y1
1
2
3
5
4
BD5242G
IC304
0.01
C381
C378 0.1
VDD
CD
NC
OUT
VSS
R405 1k
C413 47p
C412 47p
C411 47p
C410 47p
C408 47p
47p
C395
10k
R447
R411 1k
R409 1k
100k
R406
C393 22p
C391 7p
R391 1M
CR-803
X302
12k
R384
MA2S077
D307
0.01
C390
33p
C386
R385 12k
R381 12k
10k
R386
C384 47p
C383 47p
R407 1k
R388 1k
R387 1k
R380 1k
R379 1k
R443 100k
R442 100k
R383 100k
NC
HOT
NC
HOT
SCRAMBLE
C397 0.001
1k
R402
MA2S111
D308
R451 100k
R454 100k
R453 2.2k
R452 2.2k
EP602
EP601
R403 100
R404 100
R450 100k
R449 100k
R448 100k
R455 100k
R517 820
R509 820
C506 12p
6.8
R510
0.68
µ
L502
FI500 FL-380
2
4
6
3
1
5
C509 15p
C519 8p
1
µ
L501
C502 0.01
R505 4.7k
GND
IN
OUT
GND
R507 100
C504 0.01
C503 0.001
R504 10k
R500 220
C501 0.01
R502 820
0.47
µ
L500
3p[H]
2.5p[L]
C634
C639 0.001
2SC5107
Q609
R622 33k[L]/27k[H]
18n[L]/15n
[H]
L616
C638 22p
C645 7p
2SC5107
Q608
C635 2p
C637 0.001
R621 150k
18n
L615
PM6/SEG31
PM5/SEG30
PM4/SEG29
PM3/SEG28
PM2/SEG27
PM1/SEG26
PM0/SEG25
PL7/SEG24
PL6/SEG23
PL5/SEG22
PL4/SEG21
CVCC
PL3/SEG20
VSS
PL2/SEG19
PL1/SEG18
PL0/SEG17
PK7/SEG16
PK6/SEG15
PK5/SEG14
PK4/SEG13
PK3/SEG12
PK2/SEG11
PK1/SEG10
PK0/SEG9
PJ7/WKP7/SEG8
PJ6/WKP6/SEG7
PJ5/WKP5/SEG6
PJ4/WKP4/SEG5
PJ3/WKP3/SEG4
PJ2/WKP2/SEG3
PJ1/WKP1/SEG2
PJ0/WKP0/SEG1
P10/TIOCA0
P11/TIOCB0
P12/TIOCC0/TCLKA
P13/TIOCD0/TCLKB
P14/TIOCA1/IRQ0
P15/TIOCB1/TCLKC
P16/TIOCA2/IRQ1
P17/TIOCB2/TCLKD
AVSS
P97/AN9/DA1
P96/AN8/DA0
P47/AN7
P46/AN6
P45/AN5
P44/AN4
P43/AN3
P42/AN2
PM7/SEG32
PN0/SEG33
PN1/SEG34
PN2/SEG35
PN3/SEG36
PN4/SEG37
PN5/SEG38
PN6/SEG39
PN7/SEG40
PH0/COM1
PH1/COM2
PH2/COM3
PH3/COM4
V1
V2
V3
C1
C2
PF3/ADTRG/IRQ3
P35/SCK1/SCL0/IRQ5
P34/RXD1/SDA0
P33/TXD1/SCL1
P32/SCK0/SDA1/IRQ4
P31/RXD0
P30/TXD0
P70/TMRI01/TMCI01
P71/TMRI23/TMCI23
P72/TMO0
P73/TMO1
P74/TMO2
P75/TMO3/SCK2
P76/RXD2
P77/TXD2
MD2
FWE
EXTAL
VSS
XTAL
VCC
STBY
NMI
RES
OSC1
OSC2
MD1
PH7/TONED/TMCI4
AVCC
VREF
P40/ANO
P41/AN1
100
99
98
97
96
95
94
93
92
91
90
89
88
87
86
85
84
83
82
81
80
79
78
77
76
50
49
48
47
46
45
44
43
42
41
40
39
38
37
36
35
34
33
32
31
30
29
28
27
26
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
75
74
73
72
71
70
69
68
67
66
65
64
63
62
61
60
59
58
57
56
55
54
53
52
51
Lo: 0.9V
Hi: 3.2V
3.3V
OFF: 0V
SW ON: 7.2V
Lo: 0.7V
Hi: 2.7V
Lo Power: 0.4V
Hi Power: 0.8V
7.0V
4.6V
4.9V
RX: 4.9V
TX: 0V
RX: 0V
TX: 4.9V
5.0V
11 - 3