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71
Feb 2009
VOLTAGE LINE
Explanatory notes
TX LINE
RX LINE
Q490
DTC114EU
IC491
NJM2058M
IC491
NJM2058M
IC491
NJM2058M
IC491
NJM2058M
Q491
2SB1132
IC491
NJM2058M
C384
100
R381
1
C344
100
R342
1
C364
100
R362
1
MAIN UNIT (3)
BUS LINE1
BUS LINE2
+15V
+8V
+3R3V
+5V
-12V
T8V
J380
DSP-TX
BOARD
J381
J340
DSP-A
BOARD
J341
J360
DSP-B
BOARD
J361
AFIN
GND
TX36K
GND
+A5VT
GND
-12V
GND
+D5VT
GND
+15V
ANVOX
GND
GND
GND
+A5VT
GND
-12V
GND
+D5VT
GND
+15V
GND1T
MCLK
DSPCK
DSPR
DFRT
DSPCK
DX1T
DFXT
GND1T
D3R3V
GND1T
D1R2V_T
D1R2V_T
GND1T
GND1T
GND1T
GND1T
DRES
DSKY
CTFL
DAVOX
DVOX
FRWT
GND1T
D3R3V
GND1T
D1R2V_T
D1R2V_SENS_T
GND1T
GND1T
+15V
+8V
+3R3V
+5V
-12V
T8V
+15V
+5V
-
12V
C380
0.001
L380
HF50ACC322513
C381
0.001
C383
100p
C363
100p
C343
100p
L381
HF50ACC322513
AFIN
ANVOX
TX36K
AGCDET_A
GND
AFOUT_A
GND
+A5VA
GND
-12V
GND
+D5VA
GND
+15V
IFIN_A
GND
AGCOUT_A
GND
+A5VA
GND
-12V
GND
+D5VA
GND
+15V
C341
0.001
L341
HF50ACC322513
C340
0.001
L340
HF50ACC322513
+5V
-
12V
+15V
+5V
+5V
-
12V
+15V
AGCDET_A
IFIN_A
AFOUT_A
AGCOUT_A
AGCDET_B
GND
AFOUT_B
GND
+A5VB
GND
-12V
GND
+D5VB
GND
+15V
IFIN_B
GND
AGCOUT_B
GND
+A5VB
GND
-12V
GND
+D5VB
GND
+15V
C361
0.001
L361
HF50ACC322513
C360
0.001
L360
HF50ACC322513
AGCDET_B
IFIN_B
AFOUT_B
AGCOUT_B
GND1A
MCLK
DSPCK
DSPR
DFRA
VSQA
DSPCK
DX1A
DFXA
GND1A
D3R3V
GND1A
D1R2V_A
GND1A
GND1A
GND1A
DRES
RTDA
NSQA
DULSA
GND1A
TNDA
FRWT
GND1A
D3R3V
GND1A
D1R2V_A
D1R2V_SENS_A
GND1A
GND1B
GND1B
GND1B
GND1B
GND1B
GND1B
GND1B
GND1B
GND1B
GND1B
D1R2V_A
MCLK
MCLK
DSPCK
DSPR
DFRB
VSQB
DSPCK
DX1B
DFXB
D3R3V
D1R2V_B
D1R2V_B
DRES
RTDB
NSQB
DULSB
TNDB
FRWT
D3R3V
D1R2V_SENS_B
D1R2V_B
MCLK
MCLK
DSPCK
DSPCK
DSPCK
DRES
DRES
DRES
DSPR
DSPR
DSPR
DSKY
DFRT
CTFL
DSPCK
DSPCK
DSPCK
DAVOX
DX1T
DVOX
DFXT
FRWT
FRWT
FRWT
D1R2V_T
D1R2V_SENS_T
RTDA
DFRA
NSQA
VSQA
DULSA
DX1A
TNDA
DFXA
D1R2V_A
D1R2V_SENS_A
RTDB
DFRB
NSQB
VSQB
DULSB
DX1B
TNDB
DFXB
D1R2V_B
D1R2V_SENS_B
+15V
+15V
-12V
+3R3V
AGCOA
AGCIA
+8V
MCK
MDAT
RSTBA
J400
from/to
RXPLL-A
unit J1701
L400 HF50ACC322513
L402 HF50ACC322513
L401 HF50ACC322513
EP403
EP404
R400 220
R401 220
R402 220
C400
0.0047
C401
0.0047
C402
0.0047
C403
0.0047
C404
0.0047
T8V
-12V
-12V
+15V
+8V
+8V
+5V
+3R3V
T8V
-
12V
+5V
+3R3V
+8V
+15V
AGCDET_A
AGCOUT_A
MCK
MDAT
RSTBA
J401
from RXPLL-A
unit J1501
DIFA
+15V
+15V
-12V
+3R3V
AGCOB
AGCIB
+8V
MCK
MDAT
RSTBB
J403
L406 HF50ACC322513
from/to
RXPLL-B
unit J1701
L407 HF50ACC322513
L405 HF50ACC322513
R403 220
R404 220
EP409
EP408
R405 220
MDAT
AGCDET_B
RSTBB
AGCOUT_B
MCK
from RXPLL-B
unit J1501
J404
IFIN_B
C405
0.0047
C406
0.0047
C407
0.0047
C408
0.0047
C409
0.0047
J492
DFAN
DACK
SCPT
C492
0.0047
C493
10
R495
C498 470
C494 470
180
C499
0.1
R522
10
R557
R499 150k
R498 150k
R497 56k
R544 39k
5.6k
R512
56k
R565
47k
R489
3.3k
D490
14
1
2
3
13
12 +
-
+
-
7
6
5 +
-
8
9
V+
GND
10
4
11
+
-
MA77
J399
R398
8.2
R397
560
R399
560
MCLK
DSPTHRML
J503
from RXPLL-B
unit J681
from RXPLL-A
unit J421
b (to MAIN unit (2))
(to MAIN unit (2))
(to MAIN unit (2))
(to MAIN unit (2))
(from MAIN unit (2))
(from MAIN unit (2))
J808
c
J502
d
from RXPLL-A
unit J561
from RXPLL-A
unit J681
J501
e
to PA200W
board J1
J801
f
to BPF
unit J107
J802
g
J430
THML
IDH
IDL
PAT8
GND
EP430
EP431
EP432
L435 HF50ACC322513
C435
0.0047
C432
0.0047
C431
0.0047
C430
0.0047
THML
IDHV
IDLV
T8V
-
12V
+5V
+3R3V
+8V
T8V
-
12V
+5V
+3R3V
+8V
J410
DGND
DRES
DSPCK
SDR1
DFXS
DFRS
DXIS
FRWT
SYNCIO
DGND
SDAT
SCK
SST1
SPSO
SST2
AGND
+3R3V
+3R3V
-12V
+3R3V
+5V
AGND
AGND
T8V
+8V
SMUT
SATT
SSB
SSA
AGND
R487 0
R410 100
R413 100
R414 100
R415 100
R416 100
R417 100
R418 100
R419 100
R420 100
R421 100
L410 EXCCL3225U
L412 EXCCL3225U
L411 HF50ACC322513
L413 HF50ACC322513
EP414
R422 100
R423 100
R424 100
EP415
R486 0
R485 0
C410 0.0047
C411 0.0047
C412 0.0047
C413 0.0047
C414 0.0047
C415 0.0047
C416 0.0047
C980 0.0047
C418 0.0047
DRES
DFXS
DFRS
DXIS
FRWT
SDAT
SCK
SST1
SPSO
SST2
SYNCIO
SMUT
SATT
SSB
SSA
J451
RXMREC
RXMRECE
RXSREC
RXSRECE
MPLAY
MPLAYE
SPLAY
SPLAYE
MICREC
MICRECE
MICPLAY
MICPLAYE
GND
RXMREC
RXSREC
MPLAY
SPLAY
MREC
MPLAY
J440
MICI
MICE
PHOS
PHE
PHOM
PHE
AFO
AFE
L440 HF50ACC322513
L441 HF50ACC322513
MICI
R481
0
R175
0
PHOS
PHOM
MICAF
C442 0.0047
C441
0.0047
R361
4.7k
C362
0.1
R341
4.7k
C342
0.1
C440
0.0047
to SCOPE
unit J4
MAIN
UNIT
(2)
MICI
R482
0
R483
0
R484
0
A
GCDET_B
A
GCDET_B
MCLK
to CHASSIS
unit MF1
-12V
+15V
+15V
-12V
-12V
+15V
+3R3V
+3R3V
+3R3V
+15V
+3R3V
+15V
-12V
+8V
+15V
+15V
T8V
+3R3V
-12V
+5V
T8V
+8V
T8V
-
12V
+5V
+3R3V
+8V
J961
J921
J921
J961
J921
J961
+3R3V
GND
NC
NC
GND
GND
GND
GND
NC
NC
GND
GND
GND
DIFA
NC
GND
DIFB
NC
GND
1st Lo IN
2nd Lo IN
3nd Lo IN
YGR OUT
TRV OUT
to SCOPE
unit J11
to PA200W
board J2
to LOGIC
unit J810
to VR-A
board J2
Summary of Contents for IC-7800
Page 1: ...SERVICE MANUAL ADDENDUM CONTENTS PARTS LIST 1 BOARD LAYOUTS 65 VOLTAGE DIAGRAM 67 Dec 2009 ...
Page 79: ...SERVICE MANUAL ADDENDUM CONTENTS PARTS LIST 1 BOARD LAYOUTS 60 VOLTAGE DIAGRAM 64 Feb 2009 ...
Page 157: ...SERVICE MANUAL ADDENDUM CONTENTS PARTS LIST 1 BOARD LAYOUTS 57 VOLTAGE DIAGRAM 59 Aug 2008 ...
Page 245: ...SERVICE MANUAL ADDENDUM CONTENTS PARTS LIST 1 BOARD LAYOUTS 57 VOLTAGE DIAGRAM 59 Jul 2008 ...
Page 333: ...THE TRANSCEIVER i7800 SERVICE MANUAL S 14015HZ C1 2 Mar 2006 ...
Page 555: ...1 1 32 Kamiminami Hirano ku Osaka 547 0003 Japan S 14015HZ C1 2 C 2004 2006 Icom Inc ...