Icom Ic-2800 Dual Band Fm Tranciever Service Manual

							7 - 2
MP6 (CO)
MP1 (CO)
MP28 (CO) MP28 (CO)MP27 (CO)
MP11 (CO)MP3 (CO) MP2 (CO)
MP22 (CO)
MP5 (CO) MP6 (CO) MP5 (CO)
Note(M)      :  MAIN unit
(CO)    :  CONTROL unit
(C)       :  CHASSIS
MP12 (CO)
MP4 (C)
MP4 (C)
MP3 (C)MP4 (C)
MP6 (C)MP4 (C)
MP3 (C)
MP4 (C) MP3 (C) MP5 (C)MP4 (C)
MP13 (CO)
MP18 (CO) DS1 (CO)MP14 (CO)MP15 (CO)
MP13 (CO)DS2 (CO)MP24 (CO)
MP25 (CO)MP17 (CO)MP21 (CO)MP7 (CO)
MP23 (CO)MP20 (CO)
WS1 (CO)MP30 (CO)MP19 (CO)
MP19 (CO)MP10 (CO)
MP17 (CO)
MP16 (CO)
MP3 (C)MP13 (C)
W4 (M)
MP2 (M) IC1 (M)MP14 (C) MP11 (C)
MP12 (C)
MP1 (C) J1 (C)
MF1 (C) MP2 (C)MP10 (C)
MP14 (C)
IC4 (M)
MP2 (M)
MP7 (M)
MP9 (C)
MAIN unit CONTROL unit
SP1 (CO) 
						

							SECTION PARTS LISTSECTION 8 SEMI-CONDUCTOR INFORMATION
8 - 1  TRANSISTORS
NAME 
SYMBOL
INSIDE VIEW NAME 
SYMBOL
INSIDE VIEW
2SB1201-S 2M
2SB934P- B934
BC
E BC C
E
2SC3324-GR CBG
2SC4081 R BR
2SC4116-BL LBL
2SC4213-B AB
2SC4215-O OY
2SC4226 R25
2SC4228 R45
2SC5085-Y MCY
2SC5193-T1 T88
BEC
2SA1362-GR AEG
2SA1576A R FA
C
BE
DTA144EUA 16
DTB123EK F12
BEC
DTC114EUA 24
DTC143-XU 43
DTC143-ZUA 123
BEC
2SC2954-T2B QK
2SC3357-T2 RK
2SC3647S-TD CC
2SD999-T2 CK CK
CE C
B
2SB1132 T100 R BAR
2SB798-T2 DK DK
BEC
C
2SJ144-GR VG
SDG
3SK166A-2-T7 K
S DG1 G2
2SK880-GR XG
2SK880-Y XY
G
SD
3SK184-S 3R
G2
S G1
D
2SK1829 KI
D
S G
UMG9N TL G9
C1
C2
E B1B2
8 - 1
8 - 2  DIODES
NAME 
SYMBOL
INSIDE VIEW
NAME 
SYMBOL
INSIDE VIEW
DA114 AV
AC
DA115 AU
A C
DAN202U N
A1C1, C2
A2
C A
DA204U K
DA221 TL K
MA133 MP
RB706F-40 3J
A1 C2C1, A2
MA862 M1I
A2C2
A1 C1
1SV282 TD
1SV284 TL
HVU350TRF 4
AC
RD20E B2 202
AC
1SS355 A
MA728 2A
MA8030-H 3^0
MA8033-L 3_3
MA8043-L 4_3
MA8047-M 4_7
MA8062-L 6_2
MA8075-L 7_5
MA8091-M 9–1
AC
MA77 4B
AC
HVU131TRF P1
AC
UM9401F –
AC C
SB10-05PCP SA
AC
1SS254 yellow
AC 
						

							9 - 1
9 - 1  CONTROL UNIT
• TOP VIEW
MP24
HV
TDATA
RDATA
GND
SP
SPE
CFL+
NC
NC
CFL–
J3
CFL+ NC NCCFL–
J3
from CFL BACK LIGHT
EXT. VIDEO INUVOL
USQL
UDIAL VVOL
VSQL
VDIAL12 34 56
12 34 56 J2
to MAIN UNIT J3J2
1
2
3
4A
B
NC
COM
4
3
2
1 COM
NC
B
A
The combination of this page and the next page shows
the unit layout in the same configuration as the actual
P.C. Board.  
SECTION 9 BOARD LAYOUTS 
						

							9 - 2
The combination of this page and the previous page
shows the unit layout in the same configuration as the
actual P.C. Board.  
• BOTTOM VIEWCONTROL UNITHV
TDATA
RDATA
GND
SP
SPE
CFL+NC
NC CFL–
J3
CFL+ NC NC CFL– J3
from CFL BACK LIGHT
(DS2)
EXT. 
VIDEO IN
J4UVOL
R145
USQL
R148
UDIAL
S11VVOL
R151
VSQL
R154
VDIAL
S12 1 23 45 6
1 23 45 6J2
to MAIN UNIT J3J2
1
2
3
4A
B
NC
COM
4
3
2
1 COM
NC
B
A
1 4 R151
R154
R145
J4
R148
S11
VGL
VSS
STV1
U/D
CPV
OEV
STV2
VDD
VGH
VCOM
VEE
STH2
RL
VB
R
G
B
GND
CPH3
CPH2
CPH1
O2H
OEH
STH11 5 10 15 20
24
J1
from LCD DISPLAY  DS1
SP
SPE1 2J5
from SPEAKER (SP1)
MP23 
						

							9 - 3
• TOP VIEWMAIN UNIT
42
1
3 5
6
J7   DATA I/O4
213 5
6
PSQLAFOUT
DATAOUT
DATAINPTTP
GND
HV RDATA SPTDATA GND SPE65
43
21J3       to CONTROL UNIT J2
6
754
32
1
8EXT MIC INPUT
STD
Q4
Q3
Q2
Q1
TOE
C5V
DETO
GND
OPD
1 10E
FV
1 2
J4
MDATA  E  MIC  MICE  PTT  EXTMIC  MU/D  M8V
M
from FAN MOTOR
MF1
ANTENNA EXT SP CLONE I/O
W4HV IN
J6      to OPTIONAL UNIT
J5
The combination of this page and the next page shows
the unit layout in the same configuration as the actual
P.C. Board.   
						

							9 - 4
4 2
1
35
6
J7    DATA I/O4
2
1 35
6
PSQL AFOUT
DATAOUT
DATAINPTTP
GND
HV RDATA SP TDATAGND SPE6 5
4 3
2 1
from CONTROL UNIT
6
7 5 4
3 2
1
8
EXT MIC INPUT
M8V  MU/D  EXTMIC  PTT  MICE  MIC  E  MDATA
from EXT SP
J1CLONE I/O
J2
MAIN UNIT
• BOTTOM VIEW
The combination of this page and the previous page
shows the unit layout in the same configuration as the
actual P.C. Board.   
						

							2SC4081
MA8075
X4
SMD-49V BIAS SEL
Q34 UMG9N 1/2
Q35 DTB123EK
INITIAL MATRIXOSC1
OSC2
EEPROM
IC17  X25320SI
ESO POWER SW CTRL
Q74  DTC143XU
Q75  2SB1201
MICIN
CPIC1HDHD
MU/D
PROTECTER
D61  MA8062  
MIC M D ATA
MICE
EXTMIC
MIC SENS. CTRL
IC25  TC7S66FU
D66  1SS355 D44 Q76
Q778V REG
IC14  TA7808F
2SB1132
U BIAS SEL
Q34  UMG9N  1/2
Q36  DTB123EK
RES
ESI,ECS,
ESCK
1RX
4RX
PCTRL
FANC
IS0, IS1, IS2
II0, II1, II2, II3MIC MUTE
9600 bps SW
IC26  BU4066BCFV
Q93   DTC144EU
PTTM
R D ATA
GND
SP
SPE
MU/DEXTMIC
VT8V REG
Q9   2SC4081
Q10 2SA1362
U8V SW
D28  1SS355
D29  DAN202U
E
MU/D
M8V PTT
+
Ð
10.000 MHzC5V4R8VVR8VVT8V MF1 (CHASSIS)13.8V
8V
J3J5
1 2
3
4
5 6 7
8 W4
FAN CONTROL
MIC 
INPUTMIC8V SW
Q90  2SD999
Q91  DTA144EU
Q92  DTC114EU
D64  MA8091
D65  1SS355
MIC SEL
D62  1SS355
MDATA CONT
IC24  TA75S01F
D63   MA8091
PTTM CTRL
Q78  2SC4081
D47  1SS355
HV
T D ATA
UT8V REG
Q25  2SC4081
Q26  2SA1362
C5V REG
IC15  TA7805F
RESET
IC16
S-80945ALMP-DA9
R DATA 
BUFFER AMP
Q80  2SC4081
T  D ATA 
BUFFER AMP
Q79  2SA1576 INPUT POWER
DC 13.8 V
1 2 3 4 5 6 CPU
IC10
HD6433032SK
X2
CR-566
12.288 MHz VDLA
VDLB VVOLV
VSQLV
VDIAL VVOL
VSQL
UDLA
UDLB UDIAL UVOL
USQL
USQLV UVOLV F-1
F-5CHGK
PWRK K1V
K2VCTRL5V REG
Q18   2SB1132
IC14  TA78L05FCTRL HV SW
Q16  2SA1362
Q17  DTC144EU Ð15V REG
IC15  TA79L15F
D-RAM
IC9  LH61665AS-60A
TFT LCD INTERFACE
IC6  M52338FP
D9  1SS355 DC-DC
CONVERTER
IC3 M5291FP
Q21 2SB798
D3  SB10-05PCP
X3
CSTC26.25MXJ040
CLKI
GB
VIDEO AMP
Q11  2SC4081 PD AMP 
IC2  TC75S51F
D2   1SV282
RGB  M/ESW
SP MA0 Ð MA8
MD0 Ð MD15
    XTAL
   EXTALNTSC/PAL  VIDEO CHROMA
IC16  M52045FP [EUR], [ITA]
          M52042FP  Other
INVERTER
IC19
TC7W04FU
EXTV CHG/LRES
F-2
F-3
F-4
F-6
F-7
F-8
X1 
CR-641 (4.433619 MHz)  [EUR], [ITA]
CR-640 (3.579545 MHz)  Other
 
    +5V REG  A/B/C
IC17, IC22, IC23
TA78L05F ´ 3 
R
G
B CTRL5V
Ð15V
Ð15V Ð15V
J2
1 2 3 4 5 6J4 13.8V Ð15V 13.8V
+3V REG
D10
MA8030CFL
BACK LIGHT
+5VA
+5VB
+5VC
Ð3V REG
D11  MA8030+5VC
+5VC
+5VB+5VC
+4V REG
D14  MA8047 +3V REG
D12
MA8033 +5VC
Ð15V
+5VA
+4V REG
D13  MA8043
CTRL5V
1 2 3 4 5 6
1 2 3 4 5 6 RESET
IC11  S-80945ANMP-DD9CFL DRIVE
Q14, Q15  2SC3647 ´ 2 
Q19  DTC144EU
Q20  2SA1362
TFT COLOR LCD 
DS1  EDTCA22QB0
STH1, DEH, Q2H, 
CPH1, CPH2, CPH3, 
CPV, STV1
R TFT CONTROLLER
IC1  MN83951
IC7  TCW14FU  
D1   1SS355
VCOM DIAMOND AMP
Q1, Q4  2SC4081 ´ 2
Q2, Q3  2SA1576 ´ 2
VGL DIAMOND AMP
Q5, Q8  2SC4081 ´ 2 
Q6, Q7  2SA1576 ´ 2 
TDATA BUFFER AMP
Q12  2SC4081
RDATA BUFFER AMP
Q13  2SA1576 TXD RXD POWERD0 Ð D7 A0 Ð A18WAIT LRES
COLOR GRAPHICS
   LCD CONTROLLER
IC8  SED1354F0A OCTAL BUS BUFFER
IC20  TC7S08FU
IC21  TC74AC244F WR, RD, FAIPWRS
IN/EXT
CONTV
BRITV
R D ATA
GND
SP
SPEHV
T D ATA
CONTROL UNIT
CS, WR, RD, FAI
10 - 1
SECTION 10 BLOCK DIAGRAM
COMPLETE VIEW 
						

							X4
SMD-49V BIAS SEL
Q34 UMG9N 1/2
Q35 DTB123EK
INITIAL MATRIXOSC1
OSC2
EEPROM
IC17  X25320SI
ESO POWER SW CTRL
Q74  DTC143XU
Q75  2SB1201PROTECTER
D45  DSA3A1
D46  RD20E
UUNLK MICIN
VAMUTE UAMUTE
CPU
IC19
HD6433876NB 10H
 [USA]HD6433876NB 11H
PLL5V
Q13  DTC144EU
Q14  DTB123EK
MU/D
PROTECTER
D61  MA8062  9600 bps AMP
IC27B  NJM4558M 1/2LPF
IC23A  NJM4558M 1/2  
MIC SENS. CTRL
IC25  TC7S66FU
D66  1SS355V_SHIFT
Q3  DTC144E
UD2  MA77 8V REG
IC14  TA7808F
U BIAS SEL
Q34  UMG9N  1/2
Q36  DTB123EK
RES
ESI,ECS,
ESCKVSOUT USOUT
1RX
4RX PCTRL
FANC
IS0, IS1, IS2
II0, II1, II2, II3IDC AMP
IC23B  NJM4558M 1/2
Q89     2SC4116
[EUR],  [ITA] only MIC AMP
Q88  2SC4081
MIC MUTE
9600 bps SW
IC26  BU4066BCFV
Q93   DTC144EU
9600 bps LIMIT
IC27A  NJM4558M 1/2
D67 MA728
D68 RB706F
MMUTE, DTMUTE, MRIPT
DTMF, ETONE
W/N CTCSS
PTTMV_VCOS REG
Q1  2SC4081
D1  1SS355
U_VCOS REG
Q17  2SC4081
D19  1SS355
DATA, CK, PLSTB, STB
MU/D
EXTMIC
PSEL
PSQL
LIMIT
VTX
UTX
VUNLK
UMMUTEVA MLV
UAM VMMUTE
VSHIFT
TONEINVSQL VT8V REG
Q9   2SC4081
Q10 2SA1362
U8V SW
D28  1SS355
D29  DAN202U
10.000 MHzC5VUR8V 4R8VVR8VVT8V
UT8V 13.8V
8V
PLL5V
VVCO8V
UVCO8VC5V
PO CTRL (8 Bit)
USQL
PTTP
RXDF
CLONEC, TMAIN, TXDF
VDMUTE, UDMUTE, DMAIN
STD, Q1, Q2, Q3, Q4, OPD
VDATA, VCK MIC8V SW
Q90  2SD999
Q91  DTA144EU
Q92  DTC114EU
D64  MA8091
D65  1SS355
MIC SEL
D62  1SS355
MDATA CONT
IC24  TA75S01F
D63   MA8091
PTTM CTRL
Q78  2SC4081
D47  1SS355HV
UT8V REG
Q25  2SC4081
Q26  2SA1362
U_MOD MUTE
Q19  2SC4213
RESET
IC16
S-80945ALMP-DA9V_MOD MUT
Q2  2SC421
3
COMPLETE VIEW 
						

							CRYSTAL FIL
FI1  FL-288V_APC DET
D7, D8  RB706F ´ 2 
U_APC DET
D25, D26
RB706F ´ 2 
U_LOOP FIL
Q101  2SC3324
Q102  2SK880HI/LOW CTRL
IC5  TA75S01F
AF AMP 
IC12 LA4445 U_AF FIL
Q85, Q86
 2SC4081 ´ 2 
COM_MUTE
IC11 TC4S81F
Q69 2SC4213U_MUTE
Q71  2SC4213
DTMF DEC UNIT
(UT-49)
   OPTION X1
CR-549
15.2 MHzUATT VAT TV_PA
IC1  M67746
NOISE
FIL
V_IF5V
D40  MA8047
X2
CDB450C24
SW
IC6B
IC7A
TC4W66F 1/2  15.65 MHzV_MIX
Q15  3SK166
PLL
IC2
M64076AGP V_SHIFT
Q3  DTC144EU
D2  MA77
LVO1
LVO2
LVO3
LVO4
NOISE FIL
CERAMIC FIL
FI6  CFWS450FU_IF5V REG
D42  MA8047 X3
CDB450C2446.05 MHzU_CRYSTAL FIL
FI2  FL-300U_BPF
FI3  EFCH435
              MWNP1
DATAIN
PTTP AFOUT
DATAOUT
VOL CTRL
IC10 M62429FPRX
RX/TX TX
DATA BUS
V_MON AMP
Q81 2SC4081 U_MON AMP
Q87 2SC4081
V_AF FIL
Q83, Q84
2SC4081 ´ 2  U_VCO
Q20,Q21  2SC4228 ´ 2 
D20,D21  1SV284 ´ 2 [SEA]
  RX        136Ð174 MHz
  TX        140Ð150 MHz
  RX/TX  430Ð440 MHz[CSA]
  RX        118Ð174 MHz
  TX         140Ð150 MHz
  RX/TX   430Ð450 MHz TX/RX FREQ.
  [EUR]
    RX/TX   144Ð146 MHz
    RX/TX   430Ð440 MHz V_VCO FREQ.
  [EUR]
    RX  128.35Ð130.35 MHz
    TX  144Ð146 MHz
[EUR]
  128.35Ð130.35 MHz
[ITA], [USA], [SEA], [CSA]
  120.35Ð158.35 MHz
U_VCO FREQ.
  [EUR], [SEA]  
     RX  383.95Ð393.95 MHz    TX  430Ð440 MHz
  [ITA]
     RX  353.95Ð483.95 MHz    TX  400Ð479 MHz
  [USA], [CSA]
     RX  383.95Ð403.95 MHz    TX  430Ð450 MHz V_VCO
Q4, Q5  2SC5085 ´ 2
D3   HVU350
D/A CTRL
IC3  M62354GP
PSQL
PSQL SW
Q73 DTC144EU V_DC-AMP
Q18  2SK880
TONE FIL
IC20
NJM4558MCLONE BUFF
Q98  DTC144TU
D74,D75  DA204U ´ 2 
V_MUTE
Q70 2SC4213 V_DRIVE
Q12  2SC2954
D5    DA221
D6    1SS355
EFCH445MWNP1
    [USA], [CSA] only VSQL
VSOUT
USQL
USOUTDATA, CK, STB V_LOOP FIL.
Q99    2SC3324
Q100  2SK880LPF LPFLPF
HPF
LPF
LPF
DETOAT T
HPFLPF LPF
HV HV
HV
13.8V VR8V
UR8V UR8V UAGC4R8V
UR8V
UAGCVAGC
VAGCVR8V
VR8V
BPF
J2 J7D ATA
I/O
3 5 6
1
2
J1
EXT SP ANT
VR8V
VAGCUTX VTX V_MOD MUTE
Q2  2SC4213BUFF AMP
Q6  2SC5085
BUFF AMP
Q8  2SC5193
V_DET SW
Q53  DTC144EU
Q55  2SJ144
Q56  2SC4081BUFF AMP
Q7  2SC5085V_ LO SW
D4  MA862
V_IF AMP
Q40  2SC4215
D30  MA133[SEA], [CSA]
  RX  120.35 Ð158.35 MHz
  TX  140Ð150 MHz
V_PRI DRIVE
Q11  2SC3357
V-1st  Lo
BPF
  D11, D12, D13
    HVU350 ´ 3 
  D14  1SS355V_RF AMP
Q16  3SK166BPF
D15  HVU350
D71  1SS355V_ANT SW
D9    UM9401F
D16  1SS355
D18  UM9401F
V_ATT CTRL
Q33  2SC4081
APC CTRL
Q30  2SB934P
Q31  2SC4081
D10  DAN202U
U_ATT CTRL
Q45  2SC4081 POW CTRL D/A
Q74  DTC143XU
UÐ1st  LoUÐ1st  Lo
  [EUR], [SEA]  
               383.95Ð393.95 MHz  
  [ITA]     353.95Ð483.95 MHz
  U_PRI DRIVE
Q28  2SC3357U_DRIVE
Q29  2SC2954
D24  DA221U_PA
IC4  SC-1318
U_IF AMP
Q41  2SC5193
D31  RB706FU_MIX
Q42  DTC144EU
Q43  3SK184
D32  DAN202UU_RF SW
D33, D76, D77, D78
MA77 ´ 4 U_ANT SW
D27  UM9401F
D37  1SS355
D39  UM9401F
D72  HVU131TRF
U_RF AMP
Q44  3SK166
D35  1SS355 BUFF AMP
Q24  2SC5085U_LO BUFF
Q27  2SC5085 U_LO SW
D22  MA862
D23  MA77
U_AGC
Q66  DTC144EU
Q67  2SC4081
D80  1SS355U_DET SW
Q61  DTC144EU
Q62  2SJ144
Q63  2SC4081
U_MIX, OSC, IFAMP, FMDET, 
SDET, NOISE AMP, SQLSW, AFFIL
IC8   TA31136FNU_RF SW
D36  MA862
U_AM DET
Q64, Q65  2SK880 ´ 2 
D43  RB706F CERAMIC FIL
FI4
ALFY450F-K
CERAMIC FIL 
FI5
CFWS450HT SW
IC6A
IC7B
TC4W66FW/N CHENGER
Q54   2SK1829
    [EUR], [ITA] onlyVÐ2nd Lo : 15.2 MHz
V_MIX, OSC, IFAMP, FMDET, 
SDET, NOISEAMP, SQLSW, AFFIL
IC28  TA31136FN
V_AM DET
Q57, Q59  
2SK880 ´ 2 
D41 RB706F
V_AGC
Q95  DTC144EU
Q60  2SC4081
D79  1SS355
BUFF AMP
Q22  2SC5085
BUFF AMP
Q23  2SC5193
TONE, DATA 
SELECTOR
IC29
BU4053BCFV[EUR], [ITA] only
DET SELECTOR
IC21 BU40668CFV
Q82 DTC144EUPACKET DET
SELECTOR
IC13 BU40668CFV
Q72 DTC144EU
PTTP CTRL
Q96 2SC4081
D73 1SS355
CLONE I/O 4 W/N CHANGER
Q52 2SC4116
W/N CTRL
Q58 DTA144EU
PO CTRL (8 BIT) [USA]
  RX  120.35Ð158.35 MHz
  TX  144Ð148 MHz
V-1st  Lo  [ITA]
    RX/TX   136Ð174 MHz
    RX         400Ð530 MHz
    TX         400Ð479 MHz[USA]
  RX        118Ð174 MHz
  TX         144Ð148 MHz
  RX/TX   430Ð450 MHz  [ ITA]
    RX  120.35Ð158.35 MHz
    TX  136Ð174 MHz
MAIN UNIT
COMPLETE VIEW 
						

							CRYSTAL FIL
FI1  FL-288V_APC DET
D7, D8  RB706F ´ 2 
U_APC DET
D25, D26
RB706F ´ 2 
U_LOOP FIL
Q101  2SC3324
Q102  2SK880 2SC4081
MA8075
X4
SMD-49V BIAS SEL
Q34 UMG9N 1/2
Q35 DTB123EK
HI/LOW CTRL
IC5  TA75S01F
INITIAL MATRIXOSC1
OSC2
EEPROM
IC17  X25320SI
ESO POWER SW CTRL
Q74  DTC143XU
Q75  2SB1201
AF AMP 
IC12 LA4445 U_AF FIL
Q85, Q86
 2SC4081 ´ 2 
COM_MUTE
IC11 TC4S81F
Q69 2SC4213U_MUTE
Q71  2SC4213
DTMF DEC UNIT
(UT-49)
   OPTION PROTECTER
D45  DSA3A1
D46  RD20E
X1
CR-549
15.2 MHz
UUNLK MICIN
VAMUTE UAMUTEUATT VAT T
CPU
IC19
HD6433876NB 10H
 [USA]HD6433876NB 11H
PLL5V
Q13  DTC144EU
Q14  DTB123EKV_PA
IC1  M67746
MU/D
PROTECTER
D61  MA8062  9600 bps AMP
IC27B  NJM4558M 1/2NOISE
FIL
V_IF5V
D40  MA8047
X2
CDB450C24
SW
IC6B
IC7A
TC4W66F LPF
IC23A  NJM4558M 1/2  
MIC M D ATA
MICE
EXTMIC
MIC SENS. CTRL
IC25  TC7S66FU
D66  1SS35515.65 MHzV_MIX
Q15  3SK166
PLL
IC2
M64076AGP V_SHIFT
Q3  DTC144EU
D2  MA77
LVO1
LVO2
LVO3
LVO4
NOISE FIL
CERAMIC FIL
FI6  CFWS450FU_IF5V REG
D42  MA8047 X3
CDB450C2446.05 MHzU_CRYSTAL FIL
FI2  FL-300U_BPF
FI3  EFCH435
              MWNP1
DATAIN
PTTP AFOUT
DATAOUT
VOL CTRL
IC10 M62429FP D44 Q76
Q77
RX
RX/TX TX
DATA BUS
V_MON AMP
Q81 2SC4081 U_MON AMP
Q87 2SC4081
V_AF FIL
Q83, Q84
2SC4081 ´ 2  U_VCO
Q20,Q21  2SC4228 ´ 2 
D20,D21  1SV284 ´ 2 [SEA]
  RX        136Ð174 MHz
  TX        140Ð150 MHz
  RX/TX  430Ð440 MHz[CSA]
  RX        118Ð174 MHz
  TX         140Ð150 MHz
  RX/TX   430Ð450 MHz TX/RX FREQ.
  [EUR]
    RX/TX   144Ð146 MHz
    RX/TX   430Ð440 MHz V_VCO FREQ.
  [EUR]
    RX  128.35Ð130.35 MHz
    TX  144Ð146 MHz
[EUR]
  128.35Ð130.35 MHz
[ITA], [USA], [SEA], [CSA]
  120.35Ð158.35 MHz
U_VCO FREQ.
  [EUR], [SEA]  
     RX  383.95Ð393.95 MHz    TX  430Ð440 MHz
  [ITA]
     RX  353.95Ð483.95 MHz    TX  400Ð479 MHz
  [USA], [CSA]
     RX  383.95Ð403.95 MHz    TX  430Ð450 MHz V_VCO
Q4, Q5  2SC5085 ´ 2
D3   HVU350
D/A CTRL
IC3  M62354GP 8V REG
IC14  TA7808F
2SB1132
U BIAS SEL
Q34  UMG9N  1/2
Q36  DTB123EK
RES
ESI,ECS,
ESCKVSOUT USOUT
1RX
4RX PCTRL
FANC
IS0, IS1, IS2
II0, II1, II2, II3IDC AMP
IC23B  NJM4558M 1/2
Q89     2SC4116
[EUR],  [ITA] only MIC AMP
Q88  2SC4081
MIC MUTE
9600 bps SW
IC26  BU4066BCFV
Q93   DTC144EU
9600 bps LIMIT
IC27A  NJM4558M 1/2
D67 MA728
D68 RB706F
MMUTE, DTMUTE, MRIPT
DTMF, ETONE
W/N CTCSS
PTTM
PSQL
PSQL SW
Q73 DTC144EU V_VCOS REG
Q1  2SC4081
D1  1SS355
U_VCOS REG
Q17  2SC4081
D19  1SS355V_DC-AMP
Q18  2SK880
TONE FIL
IC20
NJM4558MCLONE BUFF
Q98  DTC144TU
D74,D75  DA204U ´ 2  DATA, CK, PLSTB, STB
R D ATA
GND
SP
SPE
MU/D
EXTMIC
PSEL
PSQL
LIMIT
VTX
UTX
VUNLK
UMMUTEVA MLV
UAM VMMUTE
VSHIFT
TONEINVSQL
V_MUTE
Q70 2SC4213 VT8V REG
Q9   2SC4081
Q10 2SA1362
U8V SW
D28  1SS355
D29  DAN202UV_DRIVE
Q12  2SC2954
D5    DA221
D6    1SS355
EFCH445MWNP1
    [USA], [CSA] only
E
MU/D
M8V PTT
+
Ð
VSQL
VSOUT
USQL
USOUTDATA, CK, STB V_LOOP FIL.
Q99    2SC3324
Q100  2SK880
10.000 MHzLPF LPFLPF
HPF
LPF
LPF
DETOAT T
HPFLPF LPF
C5VUR8V 4R8VVR8VVT8V
UT8V MF1 (CHASSIS)13.8V
8V
HV HV
HV PLL5V
VVCO8V
UVCO8V
13.8V
J3VR8V
UR8V UR8V UAGC4R8V
UR8V
UAGCVAGC
VAGCVR8V
VR8V
BPF J5
1 2
3
4
5 6 7
8C5V
J2 J7D ATA
I/O
3 5 6
1
2
J1
EXT SP ANT
VR8V W4
VAGCUTX VTX FAN CONTROL
MIC 
INPUT
PO CTRL (8 Bit)
USQL
PTTP
RXDF
CLONEC, TMAIN, TXDF
VDMUTE, UDMUTE, DMAIN
STD, Q1, Q2, Q3, Q4, OPD
VDATA, VCK MIC8V SW
Q90  2SD999
Q91  DTA144EU
Q92  DTC114EU
D64  MA8091
D65  1SS355
MIC SEL
D62  1SS355
MDATA CONT
IC24  TA75S01F
D63   MA8091
PTTM CTRL
Q78  2SC4081
D47  1SS355
HV
T D ATA
HV
UT8V REG
Q25  2SC4081
Q26  2SA1362
U_MOD MUTE
Q19  2SC4213
C5V REG
IC15  TA7805F
RESET
IC16
S-80945ALMP-DA9
R DATA 
BUFFER AMP
Q80  2SC4081
T  D ATA 
BUFFER AMP
Q79  2SA1576V_MOD MUTE
Q2  2SC4213BUFF AMP
Q6  2SC5085
BUFF AMP
Q8  2SC5193
V_DET SW
Q53  DTC144EU
Q55  2SJ144
Q56  2SC4081BUFF AMP
Q7  2SC5085V_ LO SW
D4  MA862
V_IF AMP
Q40  2SC4215
D30  MA133[SEA], [CSA]
  RX  120.35 Ð158.35 MHz
  TX  140Ð150 MHz
V_PRI DRIVE
Q11  2SC3357
V-1st  Lo
BPF
  D11, D12, D13
    HVU350 ´ 3 
  D14  1SS355V_RF AMP
Q16  3SK166BPF
D15  HVU350
D71  1SS355V_ANT SW
D9    UM9401F
D16  1SS355
D18  UM9401F
V_ATT CTRL
Q33  2SC4081
APC CTRL
Q30  2SB934P
Q31  2SC4081
D10  DAN202U
U_ATT CTRL
Q45  2SC4081 POW CTRL D/A
Q74  DTC143XU
UÐ1st  LoUÐ1st  Lo
  [EUR], [SEA]  
               383.95Ð393.95 MHz  
  [ITA]     353.95Ð483.95 MHz
  U_PRI DRIVE
Q28  2SC3357U_DRIVE
Q29  2SC2954
D24  DA221U_PA
IC4  SC-1318
U_IF AMP
Q41  2SC5193
D31  RB706FU_MIX
Q42  DTC144EU
Q43  3SK184
D32  DAN202UU_RF SW
D33, D76, D77, D78
MA77 ´ 4 U_ANT SW
D27  UM9401F
D37  1SS355
D39  UM9401F
D72  HVU131TRF
U_RF AMP
Q44  3SK166
D35  1SS355 BUFF AMP
Q24  2SC5085U_LO BUFF
Q27  2SC5085 U_LO SW
D22  MA862
D23  MA77
U_AGC
Q66  DTC144EU
Q67  2SC4081
D80  1SS355U_DET SW
Q61  DTC144EU
Q62  2SJ144
Q63  2SC4081
U_MIX, OSC, IFAMP, FMDET, 
SDET, NOISE AMP, SQLSW, AFFIL
IC8   TA31136FNU_RF SW
D36  MA862
U_AM DET
Q64, Q65  2SK880 ´ 2 
D43  RB706F CERAMIC FIL
FI4
ALFY450F-K
CERAMIC FIL 
FI5
CFWS450HT SW
IC6A
IC7B
TC4W66FW/N CHENGER
Q54   2SK1829
    [EUR], [ITA] onlyVÐ2nd Lo : 15.2 MHz
V_MIX, OSC, IFAMP, FMDET, 
SDET, NOISEAMP, SQLSW, AFFIL
IC28  TA31136FN
V_AM DET
Q57, Q59  
2SK880 ´ 2 
D41 RB706F
V_AGC
Q95  DTC144EU
Q60  2SC4081
D79  1SS355
BUFF AMP
Q22  2SC5085
BUFF AMP
Q23  2SC5193
TONE, DATA 
SELECTOR
IC29
BU4053BCFV INPUT POWER
DC 13.8 V
[EUR], [ITA] only
DET SELECTOR
IC21 BU40668CFV
Q82 DTC144EUPACKET DET
SELECTOR
IC13 BU40668CFV
Q72 DTC144EU
PTTP CTRL
Q96 2SC4081
D73 1SS355
CLONE I/O 4 W/N CHANGER
Q52 2SC4116
W/N CTRL
Q58 DTA144EU
PO CTRL (8 BIT)
1 2 3 4 5 6[USA]
  RX  120.35Ð158.35 MHz
  TX  144Ð148 MHz
V-1st  Lo  [ITA]
    RX/TX   136Ð174 MHz
    RX         400Ð530 MHz
    TX         400Ð479 MHz[USA]
  RX        118Ð174 MHz
  TX         144Ð148 MHz
  RX/TX   430Ð450 MHz  [ ITA]
    RX  120.35Ð158.35 MHz
    TX  136Ð174 MHz
CPU
IC10
HD6433032SK
X2
CR-566
12.288 MHz VDLA
VDLB VVOLV
VSQLV
VDIAL VVOL
VSQL
UDLA
UDLB UDIAL UVOL
USQL
USQLV UVOLV F-1
F-5CHGK
PWRK K1V
K2VCTRL5V REG
Q18   2SB1132
IC14  TA78L05FCTRL HV SW
Q16  2SA1362
Q17  DTC144EU Ð15V REG
IC15  TA79L15F
D-RAM
IC9  LH61665AS-60A
TFT LCD INTERFACE
IC6  M52338FP
D9  1SS355 DC-DC
CONVERTER
IC3 M5291FP
Q21 2SB798
D3  SB10-05PCP
X3
CSTC26.25MXJ040
CLKI
GB
VIDEO AMP
Q11  2SC4081 PD AMP 
IC2  TC75S51F
D2   1SV282
RGB  M/ESW
SP MA0 Ð MA8
MD0 Ð MD15
    XTAL
   EXTALNTSC/PAL  VIDEO CHROMA
IC16  M52045FP [EUR], [ITA]
          M52042FP  Other
INVERTER
IC19
TC7W04FU
EXTV CHG/LRES
F-2
F-3
F-4
F-6
F-7
F-8
X1 
CR-641 (4.433619 MHz)  [EUR], [ITA]
CR-640 (3.579545 MHz)  Other
 
    +5V REG  A/B/C
IC17, IC22, IC23
TA78L05F ´ 3 
R
G
B CTRL5V
Ð15V
Ð15V Ð15V
J2
1 2 3 4 5 6J4 13.8V Ð15V 13.8V
+3V REG
D10
MA8030CFL
BACK LIGHT
+5VA
+5VB
+5VC
Ð3V REG
D11  MA8030+5VC
+5VC
+5VB+5VC
+4V REG
D14  MA8047 +3V REG
D12
MA8033 +5VC
Ð15V
+5VA
+4V REG
D13  MA8043
CTRL5V
1 2 3 4 5 6
1 2 3 4 5 6 RESET
IC11  S-80945ANMP-DD9CFL DRIVE
Q14, Q15  2SC3647 ´ 2 
Q19  DTC144EU
Q20  2SA1362
TFT COLOR LCD 
DS1  EDTCA22QB0
STH1, DEH, Q2H, 
CPH1, CPH2, CPH3, 
CPV, STV1
R TFT CONTROLLER
IC1  MN83951
IC7  TCW14FU  
D1   1SS355
VCOM DIAMOND AMP
Q1, Q4  2SC4081 ´ 2
Q2, Q3  2SA1576 ´ 2
VGL DIAMOND AMP
Q5, Q8  2SC4081 ´ 2 
Q6, Q7  2SA1576 ´ 2 
TDATA BUFFER AMP
Q12  2SC4081
RDATA BUFFER AMP
Q13  2SA1576 TXD RXD POWERD0 Ð D7 A0 Ð A18WAIT LRES
COLOR GRAPHICS
   LCD CONTROLLER
IC8  SED1354F0A OCTAL BUS BUFFER
IC20  TC7S08FU
IC21  TC74AC244F WR, RD, FAIPWRS
IN/EXT
CONTV
BRITV
R D ATA
GND
SP
SPEHV
T D ATA
CONTROL UNITMAIN UNIT
CS, WR, RD, FAI
10 - 1
SECTION 10 BLOCK DIAGRAM
LEFT SIDERIGHT SIDECENTER